Search and Retrieval
Introducing Search and Retrieval Requests
The GDC API provides endpoints that search and retrieve information stored in the GDC according to the GDC Data Model. The general format of requests to search & retrieval endpoints is described below.
Note: Queries described in this section work for datasets that have been released to the GDC Data Portal. Unreleased data that is in the process of being submitted to GDC cannot be queried using these methods. See Submission to learn how to query unreleased data using GraphQL.
Components of a Request
A typical search and retrieval API request specifies the following parameters:
- a
filtersparameter, that specifies the search terms for the query - several parameters that specify the API response, such as:
format— specifies response format (JSON, TSV, XML)fields— specifies the which data elements should be returned in the response, if availablesize— specifies the the maximum number of results to include in the response- other parameters are described below.
Requests can be executed using HTTP GET or HTTP POST. GET requests are limited by maximum URL length, so the POST method is recommended for large queries.
POST Example
The following is an example of an HTTP POST request to the files endpoint of the GDC API. It looks for Gene Expression Quantification files associated with specific TCGA cases (represented by TCGA barcodes) and retrieves the associated biospecimen metadata in TSV format.
Request
curl --request POST --header "Content-Type: application/json" --data @Payload 'https://api.gdc.cancer.gov/files' > response.tsv
Payload
{
"filters":{
"op":"and",
"content":[
{
"op":"in",
"content":{
"field":"cases.submitter_id",
"value":[
"TCGA-CK-4948",
"TCGA-D1-A17N",
"TCGA-4V-A9QX",
"TCGA-4V-A9QM"
]
}
},
{
"op":"=",
"content":{
"field":"files.data_type",
"value":"Gene Expression Quantification"
}
}
]
},
"format":"tsv",
"fields":"file_id,file_name,cases.submitter_id,cases.case_id,data_category,data_type,cases.samples.tumor_descriptor,cases.samples.tissue_type,cases.samples.sample_type,cases.samples.submitter_id,cases.samples.sample_id,analysis.workflow_type,cases.project.project_id,cases.samples.portions.analytes.aliquots.aliquot_id,cases.samples.portions.analytes.aliquots.submitter_id",
"size":"1000"
}
Each component of the request is explained below.
GET Example
The above request can be executed as an HTTP GET:
https://api.gdc.cancer.gov/files?filters=%7B%22op%22%3A%22and%22%2C%22content%22%3A%5B%7B%22op%22%3A%22in%22%2C%22content%22%3A%7B%22field%22%3A%22cases.submitter_id%22%2C%22value%22%3A%5B%22TCGA-CK-4948%22%2C%22TCGA-D1-A17N%22%2C%22TCGA-4V-A9QX%22%2C%22TCGA-4V-A9QM%22%5D%7D%7D%2C%7B%22op%22%3A%22%3D%22%2C%22content%22%3A%7B%22field%22%3A%22files.data_type%22%2C%22value%22%3A%22Gene%20Expression%20Quantification%22%7D%7D%5D%7D&format=tsv&fields=file_id,file_name,cases.submitter_id,cases.case_id,data_category,data_type,cases.samples.tumor_descriptor,cases.samples.tissue_type,cases.samples.sample_type,cases.samples.submitter_id,cases.samples.sample_id,analysis.workflow_type,cases.project.project_id,cases.samples.portions.analytes.aliquots.aliquot_id,cases.samples.portions.analytes.aliquots.submitter_id&size=1000
Each component of the request is explained below.
Endpoints
The following search and retrieval endpoints are available in the GDC API:
| Endpoints | Description |
|---|---|
| files | Information about files stored in the GDC |
| cases | Information related to cases, or sample donors |
| history | Information related to file version history |
| projects | Information about projects |
| annotations | Information about annotations to GDC data |
| _mapping | Information about elements that can be used to query other endpoints |
The choice of endpoint determines what is listed in the search results. The files endpoint will generate a list of files, whereas the cases endpoint will generate a list of cases. Each of the above endpoints, other than _mapping, can query and return any of the related fields in the GDC Data Model. So the cases endpoint can be queried for file fields (e.g. to look for cases that have certain types of experimental data), and the files endpoint can be queried for clinical metadata associated with a case (e.g. to look for files from cases diagnosed with a specific cancer type).
Project Endpoint
The projects endpoint provides access to project records, the highest level of data organization in the GDC.
Example
This example is a query for projects contained in the GDC. It uses the from, size, sort, and pretty parameters, and returns the first two projects sorted by project id.
curl 'https://api.gdc.cancer.gov/projects?from=0&size=2&sort=project_id:asc&pretty=true'
{
"data": {
"hits": [
{
"id": "APOLLO-LUAD",
"primary_site": [
"Bronchus and lung"
],
"dbgap_accession_number": "phs003011",
"project_id": "APOLLO-LUAD",
"disease_type": [
"Adenomas and Adenocarcinomas"
],
"name": "APOLLO1: Proteogenomic characterization of lung adenocarcinoma",
"releasable": false,
"state": "open",
"released": true
},
{
"id": "BEATAML1.0-COHORT",
"primary_site": [
"Hematopoietic and reticuloendothelial systems"
],
"dbgap_accession_number": "phs001657",
"project_id": "BEATAML1.0-COHORT",
"disease_type": [
"Myelodysplastic Syndromes",
"Leukemias, NOS",
"Unknown",
"Myeloid Leukemias",
"Plasma Cell Tumors",
"Chronic Myeloproliferative Disorders"
],
"name": "Functional Genomic Landscape of Acute Myeloid Leukemia",
"releasable": true,
"state": "open",
"released": true
}
],
"pagination": {
"count": 2,
"total": 78,
"size": 2,
"from": 0,
"sort": "None",
"page": 1,
"pages": 39
}
},
"warnings": {}
}
Retrieval of project metadata using project_id
The project endpoint supports a simple query format that retrieves the metadata of a single project using its project_id:
curl 'https://api.gdc.cancer.gov/projects/TARGET-NBL?expand=summary,summary.experimental_strategies,summary.data_categories&pretty=true'
{
"data": {
"summary": {
"file_count": 5705,
"data_categories": [
{
"file_count": 943,
"case_count": 278,
"data_category": "Sequencing Reads"
},
{
"file_count": 3080,
"case_count": 220,
"data_category": "Simple Nucleotide Variation"
},
{
"file_count": 3,
"case_count": 1119,
"data_category": "Clinical"
},
{
"file_count": 705,
"case_count": 225,
"data_category": "DNA Methylation"
},
{
"file_count": 2,
"case_count": 1132,
"data_category": "Biospecimen"
},
{
"file_count": 324,
"case_count": 155,
"data_category": "Transcriptome Profiling"
},
{
"file_count": 648,
"case_count": 155,
"data_category": "Structural Variation"
}
],
"experimental_strategies": [
{
"file_count": 1458,
"case_count": 155,
"experimental_strategy": "RNA-Seq"
},
{
"file_count": 15,
"case_count": 8,
"experimental_strategy": "WGS"
},
{
"file_count": 3522,
"case_count": 222,
"experimental_strategy": "WXS"
},
{
"file_count": 705,
"case_count": 225,
"experimental_strategy": "Methylation Array"
}
],
"case_count": 1132,
"file_size": 16968781125824
},
"primary_site": [
"Stomach",
"Bones, joints and articular cartilage of limbs",
"Heart, mediastinum, and pleura",
"Peripheral nerves and autonomic nervous system",
"Uterus, NOS",
"Bones, joints and articular cartilage of other and unspecified sites",
"Other endocrine glands and related structures",
"Renal pelvis",
"Retroperitoneum and peritoneum",
"Liver and intrahepatic bile ducts",
"Meninges",
"Connective, subcutaneous and other soft tissues",
"Adrenal gland",
"Unknown",
"Spinal cord, cranial nerves, and other parts of central nervous system",
"Skin",
"Other and ill-defined sites",
"Kidney",
"Lymph nodes",
"Hematopoietic and reticuloendothelial systems"
],
"dbgap_accession_number": "phs000467",
"project_id": "TARGET-NBL",
"disease_type": [
"Neuroepitheliomatous Neoplasms",
"Not Applicable"
],
"name": "Neuroblastoma",
"releasable": true,
"state": "open",
"released": true
},
"warnings": {}
}
Files Endpoint
The GDC Files Endpoint https://api.gdc.cancer.gov/files enables search and retrieval of information relating to files stored in the GDC, including file properties such as file_name, md5sum, data_format, and others.
Example
This example is a query for files contained in the GDC. It uses the from, size, sort, and pretty parameters, and returns only the first two files, sorted by file size, from smallest to largest.
curl 'https://api.gdc.cancer.gov/files?from=0&size=2&sort=file_size:asc&pretty=true'
{
"data": {
"hits": [
{
"id": "0ab5e358-b1ff-4433-8959-c37c5890d9aa",
"data_format": "BEDPE",
"access": "controlled",
"file_name": "090e2828-079c-48e6-97cb-735c763da8d3.wgs.BRASS.rerun_structural_variation.bedpe.gz",
"submitter_id": "247c3c9a-58b9-4b70-bda8-cb197acb5609",
"data_category": "Somatic Structural Variation",
"acl": [
"phs001287"
],
"type": "structural_variation",
"file_size": 20,
"created_datetime": "2022-04-08T20:27:04.633842-05:00",
"updated_datetime": "2022-07-07T11:02:27.204310-05:00",
"file_id": "0ab5e358-b1ff-4433-8959-c37c5890d9aa",
"data_type": "Structural Rearrangement",
"state": "released",
"experimental_strategy": "WGS",
"version": "1",
"data_release": "34.0 - 37.0"
},
{
"id": "a8bc2405-b57d-48bb-b241-18b3e28caa56",
"data_format": "BEDPE",
"access": "controlled",
"file_name": "eae76f14-8aa7-427f-a90c-4e0ed095e0c2.wgs.BRASS.rerun_structural_variation.bedpe.gz",
"submitter_id": "618cd251-ddcb-4a7e-9a6d-efb132b0bd7a",
"data_category": "Somatic Structural Variation",
"acl": [
"phs001287"
],
"type": "structural_variation",
"file_size": 20,
"created_datetime": "2022-04-08T20:43:16.505747-05:00",
"updated_datetime": "2022-07-07T11:00:43.345766-05:00",
"file_id": "a8bc2405-b57d-48bb-b241-18b3e28caa56",
"data_type": "Structural Rearrangement",
"state": "released",
"experimental_strategy": "WGS",
"version": "1",
"data_release": "34.0 - 37.0"
}
],
"pagination": {
"count": 2,
"total": 931947,
"size": 2,
"from": 0,
"sort": "None",
"page": 1,
"pages": 465974
}
},
"warnings": {}
}
Retrieval of file metadata using individual UUIDs:
The /files endpoint supports a simple query format that retrieves the metadata of a single file using its UUID. Note that the /files endpoint is inactive when querying for earlier file versions. In that case, the /history or /files/versions endpoints should be used instead.
curl 'https://api.gdc.cancer.gov/files/20f45e04-3c10-4f11-b57b-719880eab69e?pretty=true'
{
"data": {
"data_format": "VCF",
"access": "controlled",
"file_name": "TCGA_BRCA.8d9cb5ae-e568-41fc-8b53-14467c2623dc.wxs.MuTect2.somatic_annotation.vcf.gz",
"submitter_id": "675f31dd-70e5-4a72-8139-423b14b31564",
"data_category": "Simple Nucleotide Variation",
"acl": [
"phs000178"
],
"type": "annotated_somatic_mutation",
"file_size": 6894331,
"created_datetime": "2022-02-07T08:48:39.178606-06:00",
"updated_datetime": "2022-02-09T12:11:12.781445-06:00",
"file_id": "20f45e04-3c10-4f11-b57b-719880eab69e",
"data_type": "Annotated Somatic Mutation",
"state": "released",
"experimental_strategy": "WXS",
"version": "2",
"data_release": "32.0 - 37.0"
},
"warnings": {}
}
Note: The
file_sizefield associated with each file is reported in bytes.
Example of retrieving file version information:
The https://api.gdc.cancer.gov/files/versions endpoint enables search and retrieval of version information about a file. A file may be versioned if a file is updated by the GDC (e.g. using a new alignment algorithm or fixing a file that contained an error). Version refers to the instance of a particular file. Inputs can either be a list of UUIDs as shown in example 1 or a download manifest as shown in example 2. Output includes information about the current and latest version for any given file. While /files also returns information about a file version this endpoint will only work for the most recent version of a file whereas /files/versions will work for all previous and current versions of a file. In both examples below the output format can be modified by adding the format=tsv parameter.
curl 'https://api.gdc.cancer.gov/files/versions/1dd28069-5777-4ff9-bd2b-d1ba68e88b06,2a03abac-f1a2-49a9-a57c-7543739dd862?pretty=true'
[
{
"id": "1dd28069-5777-4ff9-bd2b-d1ba68e88b06",
"filename": "1dd28069-5777-4ff9-bd2b-d1ba68e88b06.vcf.gz",
"version": "1",
"md5": "c2f9b196e154906a70c7ec46492a859d",
"size": 332092,
"state": "validated",
"release": "12.0",
"latest_id": "76b3f4d8-c6b7-4662-ac42-1d27d4684281",
"latest_filename": "def1cc5b-55f0-4372-a3ff-df3ea93cf3e7.wxs.somaticsniper.raw_somatic_mutation.vcf.gz",
"latest_version": "2",
"latest_size": 357706,
"latest_state": "validated",
"latest_release": [
"32.0",
"33.0",
"33.1",
"34.0",
"35.0",
"36.0",
"37.0"
]
},
{
"id": "2a03abac-f1a2-49a9-a57c-7543739dd862",
"filename": "a5d86cde-32ca-4ed6-b1a5-5a47575f2ac6_gdc_realn_rehead.bam",
"version": "1",
"md5": "48686fcd84ac713d44261ca9e26b89fb",
"size": 6653119038,
"state": "validated",
"release": "12.0",
"latest_id": "de0ce84d-c286-405c-a556-39dac14c7c74",
"latest_filename": "d45c33cc-88e2-4de5-a578-f7e31a6c0738.rna_seq.genomic.gdc_realn.bam",
"latest_version": "2",
"latest_size": 6223445806,
"latest_state": "validated",
"latest_release": [
"32.0",
"33.0",
"33.1",
"34.0",
"35.0",
"36.0",
"37.0"
]
}
]
curl --request POST --header "Content-Type: text/tsv" https://api.gdc.cancer.gov/files/versions/manifest?pretty=true --data-binary @gdc_manifest_20180809_154816.txt
[
{
"id": "0b20e27c-9a09-4f15-923f-d5b4f185dc22",
"filename": "nationwidechildrens.org_clinical.TCGA-13-1500.xml",
"version": "1",
"md5": "597aa4df24c4d544b6c25cbd8b25a33e",
"size": 44857,
"state": "validated",
"release": "12.0",
"latest_id": "0b20e27c-9a09-4f15-923f-d5b4f185dc22",
"latest_filename": "nationwidechildrens.org_clinical.TCGA-13-1500.xml",
"latest_version": "1",
"latest_md5": "597aa4df24c4d544b6c25cbd8b25a33e",
"latest_size": 44857,
"latest_state": "validated",
"latest_release": [
"12.0",
"13.0",
"14.0",
"15.0",
"16.0",
"17.0",
"18.0",
"19.0",
"20.0",
"21.0",
"22.0",
"23.0",
"24.0",
"25.0",
"26.0",
"27.0",
"28.0",
"29.0",
"30.0",
"31.0",
"32.0",
"33.0",
"33.1",
"34.0",
"35.0",
"36.0",
"37.0"
]
},
{
"id": "3edc7084-013c-4493-8507-c00b0e9962d8",
"filename": "BUCKS_p_TCGA_272_273_N_GenomeWideSNP_6_G05_1320676.grch38.seg.v2.txt",
"version": "1",
"md5": "35a18d990a05eedfaf96e753bee0b96d",
"size": 27620,
"state": "validated",
"release": "12.0",
"latest_id": "3edc7084-013c-4493-8507-c00b0e9962d8",
"latest_filename": "BUCKS_p_TCGA_272_273_N_GenomeWideSNP_6_G05_1320676.grch38.seg.v2.txt",
"latest_version": "1",
"latest_md5": "35a18d990a05eedfaf96e753bee0b96d",
"latest_size": 27620,
"latest_state": "validated",
"latest_release": [
"12.0",
"13.0",
"14.0",
"15.0",
"16.0",
"17.0",
"18.0",
"19.0",
"20.0",
"21.0",
"22.0",
"23.0",
"24.0",
"25.0",
"26.0",
"27.0",
"28.0",
"29.0",
"30.0",
"31.0",
"32.0",
"33.0",
"33.1",
"34.0",
"35.0",
"36.0",
"37.0"
]
},
{
"id": "a22f5e32-b16e-458f-a412-7e438056ece6",
"filename": "a22f5e32-b16e-458f-a412-7e438056ece6.vep.vcf.gz",
"version": "1",
"md5": "68b2433b31679bbbc6681919a1b81762",
"size": 2346,
"state": "validated",
"release": "12.0",
"latest_id": "55491171-6170-45cb-af9d-d99345b289e5",
"latest_filename": "4b89bb97-41f6-43c4-a481-287556f7bb4a.targeted_sequencing.annotated_somatic_mutation.vcf.gz",
"latest_version": "2",
"latest_size": 2618,
"latest_state": "validated",
"latest_release": [
"32.0",
"33.0",
"33.1",
"34.0",
"35.0",
"36.0",
"37.0"
]
}
]
Cases Endpoint
The GDC Cases Endpoint https://api.gdc.cancer.gov/cases enables search and retrieval of information related to a specific case.
The cases endpoint is designed to retrieve the metadata associated with one or more cases, including all nested biospecimen entities. Filters can be applied to retrieve information for entire cases, but not for lower-level biospecimen entities. For example, a sample within a case cannot be used to query for aliquots that are associated only with that sample. All aliquots associated with the case would be retrieved.
Example
This example is a query for files contained in GDC. It returns case where submitter id is TCGA-BH-A0EA, using the pretty and filters parameters and the following filtering operators:
{"op":"and","content":[{"op":"in","content":{"field":"submitter_id","value":["TCGA-BH-A0EA"]}}]}
Command:
curl 'https://api.gdc.cancer.gov/cases?filters=%7B%22op%22%3A%22and%22%2C%22content%22%3A%5B%7B%22op%22%3A%22in%22%2C%22content%22%3A%7B%22field%22%3A%22submitter_id%22%2C%22value%22%3A%5B%22TCGA-BH-A0EA%22%5D%7D%7D%5D%7D%0A%0A&pretty=true'
{
"data": {
"hits": [
{
"id": "1f601832-eee3-48fb-acf5-80c4a454f26e",
"slide_ids": [
"a0826f0d-986a-491b-8c6f-b34f8929f3ee",
"90154ea1-6b76-4445-870e-d531d6fa1239",
"1dd1cab5-5a81-428a-8153-91e8c4cf9905"
],
"submitter_slide_ids": [
"TCGA-BH-A0EA-01Z-00-DX1",
"TCGA-BH-A0EA-01A-01-MSA",
"TCGA-BH-A0EA-01A-01-TSA"
],
"disease_type": "Ductal and Lobular Neoplasms",
"analyte_ids": [
"f19f408a-815f-43d9-8032-e9482b796371",
"fe678556-acf4-4bde-a95e-860bb0150a95",
"69ddc092-88a0-4839-a2bb-9f1c9e760409",
"66ed0f86-5ca5-4dec-ba76-7ee4dcf31831",
"30cb470f-66d4-4085-8c30-83a42e8453d4"
],
"submitter_id": "TCGA-BH-A0EA",
"submitter_analyte_ids": [
"TCGA-BH-A0EA-10A-01D",
"TCGA-BH-A0EA-01A-11D",
"TCGA-BH-A0EA-01A-11R",
"TCGA-BH-A0EA-10A-01W",
"TCGA-BH-A0EA-01A-11W"
],
"aliquot_ids": [
"cde982b7-3b0a-49eb-8710-a599cb0e44c1",
"b1a3739d-d554-4202-b96f-f25a444e2042",
"eef9dce1-6ba6-432b-bbe2-53c7dbe64fe7",
"97c64d6a-7dce-4d0f-9cb3-b3e4eb4719c5",
"262715e1-835c-4f16-8ee7-6900e26f7cf5",
"cfbd5476-e83a-401d-9f9a-639c73a0e35b",
"bcb7fc6d-60a0-48b7-aa81-14c0dda72d76",
"561b8777-801a-49ed-a306-e7dafeb044b6",
"edad5bd3-efe0-4c5f-b05c-2c0c2951c45a",
"42d050e4-e8ee-4442-b9c0-0ee14706b138",
"2beb34c4-d493-4a73-b21e-de77d43251ff",
"ca71ca96-cbb7-4eab-9487-251dda34e107"
],
"submitter_aliquot_ids": [
"TCGA-BH-A0EA-10A-01W-A12U-09",
"TCGA-BH-A0EA-01A-11D-A111-01",
"TCGA-BH-A0EA-01A-11D-A314-09",
"TCGA-BH-A0EA-01A-11D-A10X-02",
"TCGA-BH-A0EA-10A-01D-A10Z-02",
"TCGA-BH-A0EA-10A-01D-A110-09",
"TCGA-BH-A0EA-01A-11D-A10Y-09",
"TCGA-BH-A0EA-10A-01D-A113-01",
"TCGA-BH-A0EA-01A-11D-A112-05",
"TCGA-BH-A0EA-01A-11R-A115-07",
"TCGA-BH-A0EA-01A-11W-A12T-09",
"TCGA-BH-A0EA-01A-11R-A114-13"
],
"created_datetime": null,
"diagnosis_ids": [
"84654ad5-2a2c-5c3b-8340-ecac6a5550fe"
],
"sample_ids": [
"55864d86-dab8-47bb-a3e3-8cfb198b06c1",
"9a6c71a6-82cd-42b1-a93f-f569370848d6",
"7f791228-dd77-4ab0-8227-d784a4c7fea1"
],
"submitter_sample_ids": [
"TCGA-BH-A0EA-01A",
"TCGA-BH-A0EA-01Z",
"TCGA-BH-A0EA-10A"
],
"primary_site": "Breast",
"submitter_diagnosis_ids": [
"TCGA-BH-A0EA_diagnosis"
],
"updated_datetime": "2019-08-06T14:15:54.128069-05:00",
"case_id": "1f601832-eee3-48fb-acf5-80c4a454f26e",
"state": "released",
"portion_ids": [
"cb6086d1-3416-4310-b109-e8fa6e8b72d4",
"8629bf5a-cdaf-4f6a-90bb-27dd4a7565c5",
"ae4f5816-f97a-4605-9b05-9ab820467dee"
],
"submitter_portion_ids": [
"TCGA-BH-A0EA-10A-01",
"TCGA-BH-A0EA-01A-21-A13C-20",
"TCGA-BH-A0EA-01A-11"
]
}
],
"pagination": {
"count": 1,
"total": 1,
"size": 10,
"from": 0,
"sort": "",
"page": 1,
"pages": 1
}
},
"warnings": {}
}
Retrieval of case metadata using individual UUIDs:
The cases endpoint supports a simple query format that retrieves the metadata of a single case using its UUID:
curl 'https://api.gdc.cancer.gov/cases/1f601832-eee3-48fb-acf5-80c4a454f26e?pretty=true&expand=diagnoses'
"data": {
"slide_ids": [
"90154ea1-6b76-4445-870e-d531d6fa1239",
"1dd1cab5-5a81-428a-8153-91e8c4cf9905",
"a0826f0d-986a-491b-8c6f-b34f8929f3ee"
],
"submitter_slide_ids": [
"TCGA-BH-A0EA-01A-01-MSA",
"TCGA-BH-A0EA-01A-01-TSA",
"TCGA-BH-A0EA-01Z-00-DX1"
],
"disease_type": "Ductal and Lobular Neoplasms",
"analyte_ids": [
"fe678556-acf4-4bde-a95e-860bb0150a95",
"66ed0f86-5ca5-4dec-ba76-7ee4dcf31831",
"30cb470f-66d4-4085-8c30-83a42e8453d4",
"69ddc092-88a0-4839-a2bb-9f1c9e760409",
"f19f408a-815f-43d9-8032-e9482b796371"
],
"submitter_id": "TCGA-BH-A0EA",
"submitter_analyte_ids": [
"TCGA-BH-A0EA-01A-11D",
"TCGA-BH-A0EA-01A-11R",
"TCGA-BH-A0EA-10A-01W",
"TCGA-BH-A0EA-01A-11W",
"TCGA-BH-A0EA-10A-01D"
],
"aliquot_ids": [
"eef9dce1-6ba6-432b-bbe2-53c7dbe64fe7",
"2beb34c4-d493-4a73-b21e-de77d43251ff",
"b1a3739d-d554-4202-b96f-f25a444e2042",
"262715e1-835c-4f16-8ee7-6900e26f7cf5",
"cfbd5476-e83a-401d-9f9a-639c73a0e35b",
"edad5bd3-efe0-4c5f-b05c-2c0c2951c45a",
"bcb7fc6d-60a0-48b7-aa81-14c0dda72d76",
"42d050e4-e8ee-4442-b9c0-0ee14706b138",
"97c64d6a-7dce-4d0f-9cb3-b3e4eb4719c5",
"561b8777-801a-49ed-a306-e7dafeb044b6",
"ca71ca96-cbb7-4eab-9487-251dda34e107",
"cde982b7-3b0a-49eb-8710-a599cb0e44c1"
],
"submitter_aliquot_ids": [
"TCGA-BH-A0EA-01A-11R-A115-07",
"TCGA-BH-A0EA-01A-11D-A112-05",
"TCGA-BH-A0EA-10A-01W-A12U-09",
"TCGA-BH-A0EA-01A-11D-A10X-02",
"TCGA-BH-A0EA-10A-01D-A113-01",
"TCGA-BH-A0EA-10A-01D-A110-09",
"TCGA-BH-A0EA-01A-11D-A314-09",
"TCGA-BH-A0EA-01A-11D-A10Y-09",
"TCGA-BH-A0EA-01A-11D-A111-01",
"TCGA-BH-A0EA-10A-01D-A10Z-02",
"TCGA-BH-A0EA-01A-11R-A114-13",
"TCGA-BH-A0EA-01A-11W-A12T-09"
],
"diagnoses": [
{
"synchronous_malignancy": "Not Reported",
"ajcc_pathologic_stage": "Stage IIA",
"days_to_diagnosis": 0,
"created_datetime": null,
"last_known_disease_status": "not reported",
"tissue_or_organ_of_origin": "Breast, NOS",
"days_to_last_follow_up": null,
"age_at_diagnosis": 26548,
"primary_diagnosis": "Infiltrating duct carcinoma, NOS",
"updated_datetime": "2019-08-08T16:25:42.215495-05:00",
"prior_malignancy": "yes",
"year_of_diagnosis": 2008,
"state": "released",
"prior_treatment": "No",
"days_to_last_known_disease_status": null,
"ajcc_staging_system_edition": "6th",
"ajcc_pathologic_t": "T1c",
"days_to_recurrence": null,
"morphology": "8500/3",
"ajcc_pathologic_n": "N1a",
"ajcc_pathologic_m": "M0",
"submitter_id": "TCGA-BH-A0EA_diagnosis",
"classification_of_tumor": "not reported",
"diagnosis_id": "84654ad5-2a2c-5c3b-8340-ecac6a5550fe",
"icd_10_code": "C50.9",
"site_of_resection_or_biopsy": "Breast, NOS",
"tumor_grade": "Not Reported",
"progression_or_recurrence": "not reported"
}
],
"created_datetime": null,
"diagnosis_ids": [
"84654ad5-2a2c-5c3b-8340-ecac6a5550fe"
],
"sample_ids": [
"55864d86-dab8-47bb-a3e3-8cfb198b06c1",
"7f791228-dd77-4ab0-8227-d784a4c7fea1",
"9a6c71a6-82cd-42b1-a93f-f569370848d6"
],
"submitter_sample_ids": [
"TCGA-BH-A0EA-01A",
"TCGA-BH-A0EA-01Z",
"TCGA-BH-A0EA-10A"
],
"primary_site": "Breast",
"submitter_diagnosis_ids": [
"TCGA-BH-A0EA_diagnosis"
],
"updated_datetime": "2019-08-06T14:15:54.128069-05:00",
"case_id": "1f601832-eee3-48fb-acf5-80c4a454f26e",
"state": "released",
"portion_ids": [
"1ef8b20e-43e5-49d7-ac9a-03ce14f58daa",
"cb6086d1-3416-4310-b109-e8fa6e8b72d4",
"8629bf5a-cdaf-4f6a-90bb-27dd4a7565c5",
"ae4f5816-f97a-4605-9b05-9ab820467dee"
],
"submitter_portion_ids": [
"TCGA-BH-A0EA-01A-21-A13C-20",
"TCGA-BH-A0EA-10A-01",
"TCGA-BH-A0EA-01A-21",
"TCGA-BH-A0EA-01A-11"
]
},
"warnings": {}
}
Annotations Endpoint
The GDC Annotation Endpoint https://api.gdc.cancer.gov/annotations enables search and retrieval of annotations stored in the GDC.
Example
This example is a query for any annotations directly associated with the following GDC entities:
- the case with UUID e0d36cc0-652c-4224-bb10-09d15c7bd8f1
- the sample with UUID 25ebc29a-7598-4ae4-ba7f-618d448882cc
- the aliquot with UUID fe660d7c-2746-4b50-ab93-b2ed99960553
The query uses the filters parameter to specify entity UUIDs. Code samples below include the bare and percent-encoded filter JSON.
{
"op":"in",
"content":{
"field":"entity_id",
"value":[
"e0d36cc0-652c-4224-bb10-09d15c7bd8f1",
"25ebc29a-7598-4ae4-ba7f-618d448882cc",
"fe660d7c-2746-4b50-ab93-b2ed99960553"
]
}
}
%7B%22op%22%3A%22in%22%2C%22content%22%3A%7B%22field%22%3A%22entity_id%22%2C%22value%22%3A%5B%22e0d36cc0-652c-4224-bb10-09d15c7bd8f1%22%2C%2225ebc29a-7598-4ae4-ba7f-618d448882cc%22%2C%22fe660d7c-2746-4b50-ab93-b2ed99960553%22%5D%7D%7D
curl 'https://api.gdc.cancer.gov/annotations?filters=%7B%22op%22%3A%22in%22%2C%22content%22%3A%7B%22field%22%3A%22entity_id%22%2C%22value%22%3A%5B%22e0d36cc0-652c-4224-bb10-09d15c7bd8f1%22%2C%2225ebc29a-7598-4ae4-ba7f-618d448882cc%22%2C%22fe660d7c-2746-4b50-ab93-b2ed99960553%22%5D%7D%7D&pretty=true'
{
"data": {
"hits": [
{
"category": "Item flagged DNU",
"status": "Approved",
"entity_id": "fe660d7c-2746-4b50-ab93-b2ed99960553",
"classification": "CenterNotification",
"entity_type": "aliquot",
"created_datetime": "2015-09-28T00:00:00",
"annotation_id": "5ddadefe-8b57-5ce2-b8b2-918d63d99a59",
"notes": "The aliquot failed Broad pipeline QC and not all files are suitable for use. Consult the SDRF file to determine which files are usable.",
"updated_datetime": "2017-03-09T13:20:38.962182-06:00",
"submitter_id": "29087",
"state": "submitted",
"case_id": "41b59716-116f-4942-8b63-409870a87e26",
"case_submitter_id": "TCGA-DK-A3IM",
"entity_submitter_id": "TCGA-DK-A3IM-10A-01D-A20B-01",
"id": "5ddadefe-8b57-5ce2-b8b2-918d63d99a59"
},
{
"category": "Item is noncanonical",
"status": "Approved",
"entity_id": "25ebc29a-7598-4ae4-ba7f-618d448882cc",
"classification": "Notification",
"entity_type": "sample",
"created_datetime": "2012-07-12T00:00:00",
"annotation_id": "d6500f94-618f-5334-a810-ade76b887ec9",
"notes": "No Matching Normal",
"updated_datetime": "2017-03-09T13:47:18.182075-06:00",
"submitter_id": "8009",
"state": "submitted",
"case_id": "bd114e05-5a97-41e2-a0d5-5d39a1e9d461",
"case_submitter_id": "TCGA-08-0514",
"entity_submitter_id": "TCGA-08-0514-01A",
"id": "d6500f94-618f-5334-a810-ade76b887ec9"
},
{
"category": "Prior malignancy",
"status": "Approved",
"entity_id": "e0d36cc0-652c-4224-bb10-09d15c7bd8f1",
"classification": "Notification",
"entity_type": "case",
"created_datetime": "2013-03-12T00:00:00",
"annotation_id": "33336cdf-2cf0-5af2-bb52-fecd3427f180",
"notes": "Patient had a prior lymphoma. Unknown radiation or systemic chemotherapy.",
"updated_datetime": "2017-03-09T12:11:31.786013-06:00",
"submitter_id": "15630",
"state": "submitted",
"case_id": "e0d36cc0-652c-4224-bb10-09d15c7bd8f1",
"case_submitter_id": "TCGA-FS-A1ZF",
"entity_submitter_id": "TCGA-FS-A1ZF",
"id": "33336cdf-2cf0-5af2-bb52-fecd3427f180"
}
],
"pagination": {
"count": 3,
"sort": "",
"from": 0,
"page": 1,
"total": 3,
"pages": 1,
"size": 10
}
},
"warnings": {}
}
History Endpoint
The GDC History Endpoint https://api.gdc.cancer.gov/history enables search and retrieval of version and release information about a file. This endpoint will return the entire provenance of all versions of a file. A file may be versioned if a file is updated by the GDC (e.g. using a new alignment algorithm or fixing a file that contained an error). Version refers to the instance of a particular file. Release refers to which data release a file was part of. A file may be a part of many different data releases with no change in version number or content.
Example
This example is a query for versioning information associated with the follow with file 1dd28069-5777-4ff9-bd2b-d1ba68e88b06.
curl 'https://api.gdc.cancer.gov/history/1dd28069-5777-4ff9-bd2b-d1ba68e88b06'
[{"uuid": "1dd28069-5777-4ff9-bd2b-d1ba68e88b06", "version": "1", "file_change": "superseded", "release_date": "2018-08-23", "data_release": "12.0"}, {"uuid": "76b3f4d8-c6b7-4662-ac42-1d27d4684281", "version": "2", "file_change": "released", "release_date": "2022-03-29", "data_release": "32.0"}]
_mapping Endpoint
Each search and retrieval endpoint is equipped with a _mapping endpoint that provides information about available fields. For example, files/_mapping endpoint provides information about fields and field groups available at the files endpoint: https://api.gdc.cancer.gov/files/_mapping.
The high-level structure of a response to a _mapping query is as follows:
"_mapping": {}
, "defaults": []
, "expand": []
, "fields": []
, "multi": []
, "nested": []
Each part of the response is described below:
| Part | Description |
|---|---|
_mapping |
All available fields and their descriptions. The endpoint-agnostic field names provided here are compatible with the filters parameter but are not always compatible with the fields parameter |
defaults |
The default set of fields included in the API response when the fields parameter is not used in the request |
expand |
Field group names for use with the expand parameter |
fields |
All available fields in an endpoint-specific format that is compatible with both the filters and fields parameters |
multi |
GDC internal use |
nested |
Nested fields |
Example
curl 'https://api.gdc.cancer.gov/projects/_mapping'
This output was put thought a json format application for easier viewability.
{
...
"_mapping": {
"projects.disease_type": {
"doc_type": "projects",
"field": "disease_type",
"type": "id"
},
"projects.name": {
"doc_type": "projects",
"field": "name",
"type": "id"
}
}
...
}
Similar information can be obtained using the fields parameter; fields queries provide additional information in the response, such as the name of the Elastic Search document (doc_type), the field name and the type of value. A list of supported types (such as string, long, float, ...) can be obtained from Elastic Search Documentation.
Request Parameters
The GDC API supports the following search & retrieval request parameters:
| Parameter | Default | Description |
|---|---|---|
| filters | null | Specifies search parameters |
| format | JSON | Specifies the API response format: JSON, XML, or TSV |
| pretty | false | Returns response with indentations and line breaks in a human-readable format |
| fields | null | Specifies which fields to include in the response |
| expand | null | Returns multiple related fields |
| size | 10 | Specifies the number of results to return |
| from | 0 | Specifies the first record to return from a set of search results |
| sort | null | Specifies sorting for the search results |
| facets | null | Provides all existing values for a given field and the number of records having this value. |
Filters: Specifying the Query
The filters parameter enables passing of complex search queries to the GDC API. The parameter carries a query in the form of a JSON object.
Query Format
A filters query consists of an operator (or a nested set of operators) with a set of field and value operands.
The following filters query operators are supported by the GDC API:
| Operator | Description | Number of Operands | Logic example |
|---|---|---|---|
| = | equals (string or number) | one | gender = "female" |
| != | does not equal (string or number) | one | project_id != "TARGET-AML" |
| < | less than (number) | one | age at diagnosis < 90y |
| <= | less than or equal (number) | one | age at diagnosis <= 17 |
| > | greater than (number) | one | age at diagnosis > 50 |
| >= | greater than or equal (number) | one | age at diagnosis >= 18 |
| is | is (missing) | one | gender is missing |
| not | not (missing) | one | race not missing |
| in | matches a string or number in (a list) | multiple | primary_site in [Brain, Lung] |
| exclude | does not match any strings or values in (a list) | multiple | experimental_strategy exclude [WXS, WGS, "Genotyping array"] |
| and | (operation1) and (operation2) | multiple | {primary_site in [Brain, Lung]} and |
| or | (operation1) or (operation2) | multiple | {project_id != "TARGET-AML"} or |
The field operand specifies a field that corresponds to a property defined in the GDC Data Dictionary. A list of supported fields is provided in Appendix A; the list can also be accessed programmatically at the _mapping endpoint.
The value operand specifies the search terms. Users can get a list of available values for a specific property by making a call to the appropriate API endpoint using the facets parameter, e.g. https://api.gdc.cancer.gov/v0/cases?facets=demographic.gender&size=0&pretty=true. See Facets for details.
A simple query with a single operator looks like this:
{
"op":"=",
"content":{
"field":"cases.demographic.gender",
"value":[
"male"
]
}
}
A more complex query with multiple operators looks like this:
{
"op":"and",
"content":[
{
"op":"in",
"content":{
"field":"cases.submitter_id",
"value":[
"TCGA-CK-4948",
"TCGA-D1-A17N",
"TCGA-4V-A9QX",
"TCGA-4V-A9QM"
]
}
},
{
"op":"=",
"content":{
"field":"files.data_type",
"value":"Gene Expression Quantification"
}
}
]
}
Example: HTTP GET Request
This example requests male cases using HTTP GET.
The JSON object to be passed to the GDC API looks like:
{
"op": "=",
"content": {
"field": "cases.demographic.gender",
"value": [
"male"
]
}
}
URL-encoding the above JSON object using Percent-(URL)-encoding tool results in the following string:
%7B%0D%0A++++%22op%22%3A+%22%3D%22%2C%0D%0A++++%22content%22%3A+%7B%0D%0A++++++++%22field%22%3A+%22cases.demographic.gender%22%2C%0D%0A++++++++%22value%22%3A+%5B%0D%0A++++++++++++%22male%22%0D%0A++++++++%5D%0D%0A++++%7D%0D%0A%7D
The above string can now be passed to the GDC API using the filters parameter:
curl 'https://api.gdc.cancer.gov/cases?filters=%7b%22op%22%3a+%22%3d%22%2c%0d%0a++++++%22content%22%3a+%7b%0d%0a++++++++++%22field%22%3a+%22cases.demographic.gender%22%2c%0d%0a++++++++++%22value%22%3a+%5b%22male%22%5d%0d%0a++++++%7d%0d%0a%7d&pretty=true'
import requests
import json
cases_endpt = 'https://api.gdc.cancer.gov/cases'
filt = {"op":"=",
"content":{
"field": "cases.demographic.gender",
"value": ["male"]
}
}
params = {'filters':json.dumps(filt), 'sort':'demographic.gender:asc'}
# requests URL-encodes automatically
response = requests.get(cases_endpt, params = params)
print(json.dumps(response.json(), indent=2))
{
"data": {
"hits": [
{
"id": "03974dc9-0162-4de8-9897-09f88693681a",
"lost_to_followup": null,
"days_to_lost_to_followup": null,
"disease_type": "Nevi and Melanomas",
"analyte_ids": [
"9747b614-624b-410a-8b94-854a16cd143a",
"c8974764-4836-4a34-aeb8-52b491f78d0e",
"bcea1ed5-b9cb-4a92-ad80-598d8a223fb3"
],
"submitter_id": "HCM-BROD-0334-C43",
"submitter_analyte_ids": [
"HCM-BROD-0334-C43-10A-01D",
"HCM-BROD-0334-C43-85M-01D",
"HCM-BROD-0334-C43-85M-01R"
],
"days_to_consent": null,
"aliquot_ids": [
"dcd74e48-12f3-4a86-a829-c7e055c215b7",
"ea182abf-041d-474a-bc53-f6fdd05cd999",
"33f3ba0a-c902-4288-9fa7-5696d959e51d"
],
"submitter_aliquot_ids": [
"HCM-BROD-0334-C43-85M-01R-A79O-41",
"HCM-BROD-0334-C43-10A-01D-A79L-36",
"HCM-BROD-0334-C43-85M-01D-A79L-36"
],
"created_datetime": "2020-05-21T08:55:40.814734-05:00",
"diagnosis_ids": [
"3d666f1b-58c2-451f-8ebf-87b5caa02aaf",
"fedc3533-85f7-4fc6-b996-a1f596e021df"
],
"sample_ids": [
"cd88baf4-b6eb-4df5-9b42-d55f3aad739c",
"eb79f8b4-1cc3-4a32-ad51-cfea8cf150f0"
],
"consent_type": null,
"submitter_sample_ids": [
"HCM-BROD-0334-C43-10A",
"HCM-BROD-0334-C43-85M"
],
"primary_site": "Skin",
"submitter_diagnosis_ids": [
"HCM-BROD-0334-C43_diagnosis2",
"HCM-BROD-0334-C43_diagnosis"
],
"updated_datetime": "2021-03-03T15:15:08.075155-06:00",
"case_id": "03974dc9-0162-4de8-9897-09f88693681a",
"index_date": "Diagnosis",
"state": "released",
"portion_ids": [
"bd0bc175-5b54-47c1-96fc-c6d8afc0c115"
],
"submitter_portion_ids": [
"HCM-BROD-0334-C43-10A-01"
]
},
{
"id": "03bfeb7c-cecf-4691-8263-33cdfe391ea9",
"lost_to_followup": null,
"days_to_lost_to_followup": null,
"disease_type": "Adenomas and Adenocarcinomas",
"analyte_ids": [
"db8132c3-47a8-49ec-9b78-bc7d18debf67",
"f74bf217-dae2-4554-92e4-8707068ea7a7",
"01764f17-2a97-442e-a08b-8a21303b4770",
"c9884c81-3c8f-4ad9-a962-42c7459a2276",
"d4f1a9f8-f748-4f45-aa06-da4d760c4fab"
],
"submitter_id": "HCM-BROD-0124-C25",
"submitter_analyte_ids": [
"HCM-BROD-0124-C25-85A-01D",
"HCM-BROD-0124-C25-01A-01D",
"HCM-BROD-0124-C25-10A-01D",
"HCM-BROD-0124-C25-85A-01R",
"HCM-BROD-0124-C25-01A-01R"
],
"aliquot_ids": [
"fe8e2565-749a-470a-b843-7afbe95ded81",
"092656af-b279-46b8-9ccf-b1eabfbd1d6f",
"677edb2c-fac3-4878-a28d-cf4e0d7873d7",
"8bb9fff4-24f8-426e-9f2a-4cb30a4ac5c2",
"f1c6f71d-b125-47bb-91ad-90d7cbff0012"
],
"submitter_aliquot_ids": [
"HCM-BROD-0124-C25-01A-01D-A78W-36",
"HCM-BROD-0124-C25-85A-01D-A786-36",
"HCM-BROD-0124-C25-01A-01R-A78X-41",
"HCM-BROD-0124-C25-10A-01D-A78W-36",
"HCM-BROD-0124-C25-85A-01R-A787-41"
],
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"ae4eb402-7c13-46f0-bdf8-361c7fdc9430",
"b720a33e-c858-47f4-9e51-e58748004e96",
"fdf06863-7d14-4f79-ad2c-b46d443d235c",
"a4f88ff3-7c9e-4edc-808f-aa01378ec68d",
"cca66f05-89e0-48a7-8948-53e556fee5be",
"e658c087-c37d-47ac-9472-3b6b6eed7188",
"6be6aff1-9694-4c7f-8f43-f0f902b95849",
"39f9ce44-944c-49b8-b215-05b117d5e62d"
],
"submitter_id": "HCM-BROD-0199-C71",
"submitter_analyte_ids": [
"HCM-BROD-0199-C71-85A-01D",
"HCM-BROD-0199-C71-01A-11D",
"HCM-BROD-0199-C71-85S-01R",
"HCM-BROD-0199-C71-85A-01R",
"HCM-BROD-0199-C71-02A-11R",
"HCM-BROD-0199-C71-02A-11D",
"HCM-BROD-0199-C71-01A-11R",
"HCM-BROD-0199-C71-10A-01D",
"HCM-BROD-0199-C71-85R-01D"
],
"aliquot_ids": [
"9f18daaa-cd67-436e-85a1-1e9b3e1e2135",
"eff144c4-4e2a-497d-998a-5ae6bccf2576",
"7ec23cac-61f4-4f8f-afa7-ed8a3ca1493f",
"6ea15978-902f-45ba-b148-cc4247341882",
"529f3cbf-f65d-4a60-a562-b3fcfbd7d4c9",
"22542d68-476b-47fd-91da-03db887756d6",
"7f4e7f6b-33b0-49da-95bd-88643d5e14ff",
"fc0121b9-5de8-4af6-90db-b36dd8207ebf",
"c9dd10db-bf23-4bb2-a6db-fec1b45549c8"
],
"submitter_aliquot_ids": [
"HCM-BROD-0199-C71-85R-01D-A80U-36",
"HCM-BROD-0199-C71-02A-11R-A80V-41",
"HCM-BROD-0199-C71-02A-11D-A80U-36",
"HCM-BROD-0199-C71-01A-11D-A786-36",
"HCM-BROD-0199-C71-10A-01D-A786-36",
"HCM-BROD-0199-C71-01A-11R-A787-41",
"HCM-BROD-0199-C71-85A-01D-A786-36",
"HCM-BROD-0199-C71-85S-01R-A80V-41",
"HCM-BROD-0199-C71-85A-01R-A787-41"
],
"created_datetime": "2019-04-04T15:00:32.807421-05:00",
"diagnosis_ids": [
"df0230e6-d07c-4814-9aee-5be560d1ce58",
"2d72ecab-4038-4ef7-b921-79b88ad62722"
],
"sample_ids": [
"b5919dd1-039e-4ab4-b6d5-37b9d483893f",
"769c5e1b-89e3-431c-9420-31de5efe5a22",
"5e0faf77-f1b3-4b1a-8b6a-8066270eddb4",
"ee0e94ad-b5b0-4ad6-912c-c4010f1a1d26",
"600a5b42-f871-47a2-8124-68184edf10bd",
"a1dbbc0c-173c-4455-a780-8682dd2e258a"
],
"submitter_sample_ids": [
"HCM-BROD-0199-C71-85R",
"HCM-BROD-0199-C71-02A",
"HCM-BROD-0199-C71-85S",
"HCM-BROD-0199-C71-85A",
"HCM-BROD-0199-C71-10A",
"HCM-BROD-0199-C71-01A"
],
"primary_site": "Brain",
"submitter_diagnosis_ids": [
"HCM-BROD-0199-C71_diagnosis",
"HCM-BROD-0199-C71_diagnosis2"
],
"updated_datetime": "2021-01-06T22:55:10.531130-06:00",
"case_id": "149a8565-e0c5-4474-a693-d44f1b445c0c",
"index_date": "Diagnosis",
"state": "released",
"portion_ids": [
"9dccf7ac-58a0-4c9e-9fb6-4ead8c37d48b",
"5afaa056-b09e-4328-ae5b-feb70faa3595",
"77827fa6-18a9-4e1a-b49f-800cec351fa8"
],
"submitter_portion_ids": [
"HCM-BROD-0199-C71-10A-01",
"HCM-BROD-0199-C71-02A-11",
"HCM-BROD-0199-C71-01A-11"
]
},
{
"id": "19b1e69a-355a-4dd7-9c56-d701f6c2c5a0",
"lost_to_followup": null,
"days_to_lost_to_followup": null,
"disease_type": "Adenomas and Adenocarcinomas",
"analyte_ids": [
"181d5e6e-026d-4983-97e8-f4d9e28a0cfe",
"293683aa-f2ef-4d14-8ec7-681c870d3b71",
"c1f6530c-004c-4b10-bae5-a571542aabd2",
"2140e379-dd8b-4440-a626-bb0e01f8fc00",
"4d337e44-6468-43b8-bf2f-4301750dab99"
],
"submitter_id": "HCM-SANG-0299-C15",
"submitter_analyte_ids": [
"HCM-SANG-0299-C15-10B-01D",
"HCM-SANG-0299-C15-85X-01R",
"HCM-SANG-0299-C15-85A-01R",
"HCM-SANG-0299-C15-85X-01D",
"HCM-SANG-0299-C15-85A-01D"
],
"aliquot_ids": [
"37fee31c-8669-4057-ae95-424586fa2a05",
"d17fd7af-fd14-4cb7-a6c1-c23339589288",
"65b7ffa3-0f1f-4918-a75f-2343720fe40c",
"a331201c-3aef-4eec-83d5-d38f4211c1b1",
"3ef40a4d-21cd-4be4-8c57-cba30c8e0778",
"b8af2a87-5b55-4c73-88f1-90ce5e1d05f5",
"a1988273-c9f8-4cd1-b1a6-5daa2c7a3e51",
"b535f87b-0a61-49bd-828b-bb5e3c11f2f7",
"3bb67aa8-5155-425e-9afc-9aca5120b0f0",
"fa20b306-a835-46d8-ab03-f8ea0b585381",
"65ec4e30-e782-4b6f-b985-33e9c7e72a0a"
],
"submitter_aliquot_ids": [
"HCM-SANG-0299-C15-85B-01D-A80T-32-aliquot",
"HCM-SANG-0299-C15-10A-01D-A80T-32-aliquot",
"HCM-SANG-0299-C15-85A-01R-A78V-41",
"HCM-SANG-0299-C15-85A-01D-A78U-36",
"HCM-SANG-0299-C15-85A-01R-A80W-32-aliquot",
"HCM-SANG-0299-C15-85X-01D-A78U-36",
"HCM-SANG-0299-C15-85X-01R-A78V-41",
"HCM-SANG-0299-C15-85A-01D-A80T-32-aliquot",
"HCM-SANG-0299-C15-01A-01D-A80T-32-aliquot",
"HCM-SANG-0299-C15-85B-01R-A80W-32-aliquot",
"HCM-SANG-0299-C15-10B-01D-A78U-36"
],
"created_datetime": "2019-10-14T10:46:36.257369-05:00",
"diagnosis_ids": [
"7c6aa4ce-6661-4491-a827-c0a8045743a6",
"c1a6f70f-b871-4b4e-a292-aef67c2d4776"
],
"sample_ids": [
"c56f3f94-deda-4d21-8f8e-658108995dfa",
"ce46b9f4-5244-432d-aa87-026e0a27d71a",
"cf134dfb-5126-4bee-bcab-39d584335a21",
"34e0d6ee-97f5-420f-9b34-4784098125f7",
"ac8476c1-53bf-43b5-8695-db441ed1a720",
"9000b366-a14b-44bc-a782-484e09765b2d",
"8541bc01-57e6-4bf7-a42e-da1c8e790633",
"277d7ed9-4e6a-429b-8f4e-438ff0d2ba7a",
"d12d9184-5317-4730-af2e-a8428456a2a7"
],
"submitter_sample_ids": [
"HCM-SANG-0299-C15-85X",
"HCM-SANG-0299-C15-85B-01D-A80T-32",
"HCM-SANG-0299-C15-85A-01R-A80W-32",
"HCM-SANG-0299-C15-10B",
"HCM-SANG-0299-C15-01A-01D-A80T-32",
"HCM-SANG-0299-C15-85A",
"HCM-SANG-0299-C15-85A-01D-A80T-32",
"HCM-SANG-0299-C15-85B-01R-A80W-32",
"HCM-SANG-0299-C15-10A-01D-A80T-32"
],
"primary_site": "Esophagus",
"submitter_diagnosis_ids": [
"HCM-SANG-0299-C15_diagnosis2",
"HCM-SANG-0299-C15_diagnosis"
],
"updated_datetime": "2023-02-22T07:39:25.979291-06:00",
"case_id": "19b1e69a-355a-4dd7-9c56-d701f6c2c5a0",
"index_date": "Sample Procurement",
"state": "released",
"portion_ids": [
"b8192c57-9cda-4dca-a590-1e13beadf2a0"
],
"submitter_portion_ids": [
"HCM-SANG-0299-C15-10B-01"
]
},
{
"id": "19f1d344-4c14-4733-abbd-c2db6737e210",
"lost_to_followup": null,
"days_to_lost_to_followup": null,
"disease_type": "Ductal and Lobular Neoplasms",
"analyte_ids": [
"a21d5f05-af57-41bf-ab60-32d2c869611b",
"696f4b03-5f0d-4eaa-975d-a9feb64dae07",
"c8d4fb23-c55d-4bb6-bd3d-fc1f159d7a33",
"5db09eb8-fecc-433f-aa34-a12a7c9333dd",
"51598aba-be8e-42a0-bf6c-aca34776fc1f"
],
"submitter_id": "HCM-CSHL-0081-C25",
"submitter_analyte_ids": [
"HCM-CSHL-0081-C25-11A-11D",
"HCM-CSHL-0081-C25-85A-01R",
"HCM-CSHL-0081-C25-85B-01D",
"HCM-CSHL-0081-C25-01A-11R",
"HCM-CSHL-0081-C25-01A-11D"
],
"aliquot_ids": [
"0a65e1bd-6af3-44ba-924c-193eb8e099d6",
"61112c39-c838-4f84-89c7-a33bfe5dea88",
"25cd08c3-09a9-406d-8ec3-ab4946224cf1",
"973d4fa3-4fa7-4ff9-8176-cc51c53b7079",
"9aa21acf-1e24-4b7a-a3c1-73354bdd81b6"
],
"submitter_aliquot_ids": [
"HCM-CSHL-0081-C25-11A-11D-A78M-36",
"HCM-CSHL-0081-C25-01A-11R-A78N-41",
"HCM-CSHL-0081-C25-85B-01D-A78M-36",
"HCM-CSHL-0081-C25-01A-11D-A78M-36",
"HCM-CSHL-0081-C25-85A-01R-A78N-41"
],
"created_datetime": "2019-09-19T08:58:31.776805-05:00",
"diagnosis_ids": [
"c1cca3a7-e0ac-40a1-9db7-6902b48d3c62"
],
"sample_ids": [
"d9f23187-9a29-426a-9ead-4bb3a2ce6cf9",
"3709004e-b04d-4473-aa29-8dd84176d17d",
"adcc54e3-074b-4ca6-b179-0a5df8efeb36",
"05478d15-885a-4c44-a46a-81bbe6c9ee11"
],
"submitter_sample_ids": [
"HCM-CSHL-0081-C25-85B",
"HCM-CSHL-0081-C25-01A",
"HCM-CSHL-0081-C25-85A",
"HCM-CSHL-0081-C25-11A"
],
"primary_site": "Pancreas",
"submitter_diagnosis_ids": [
"HCM-CSHL-0081-C25_diagnosis"
],
"updated_datetime": "2023-02-22T07:39:25.979291-06:00",
"case_id": "19f1d344-4c14-4733-abbd-c2db6737e210",
"index_date": "Diagnosis",
"state": "released",
"portion_ids": [
"d9588542-d7ef-413e-900c-3f816b583525",
"b77573f1-e6a3-43c1-a56d-a207c39e18c4"
],
"submitter_portion_ids": [
"HCM-CSHL-0081-C25-01A-11",
"HCM-CSHL-0081-C25-11A-11"
]
}
],
"pagination": {
"count": 10,
"total": 40232,
"size": 10,
"from": 0,
"sort": "",
"page": 1,
"pages": 4024
}
},
"warnings": {}
}
Example: HTTP POST Request
This example demonstrates how to obtain metadata in TSV format for a set of files using their UUIDs (e.g. UUIDs obtained from a download manifest file generated by the GDC Data Portal).
The first step is to construct a JSON query object, including filters, fields, format, and size parameters. The object is then submitted as HTTP POST payload to the GDC API using curl, in order to retrieve a TSV file with the requested metadata.
{
"filters":{
"op":"in",
"content":{
"field":"files.file_id",
"value":[
"b4bce3ff-7fdc-4849-880b-56f2b348ceac",
"5ca9fa79-53bc-4e91-82cd-5715038ee23e",
"b7c3e5ad-4ffc-4fc4-acbf-1dfcbd2e5382",
"1bc55036-2c7a-4333-87fd-b336056a8f06",
"6c00906c-7eb7-484d-93a9-d5b2075e7b50",
"b246b593-e1d1-4711-8aa5-d8e9eead9e2b",
"a2ee0837-f3a9-42be-ba26-f2bb1d6a50c0",
"72c1126d-384f-4f8b-becf-92e0779525b7",
"53984642-d431-490e-8a8a-c59b872ace66",
"b2c51c85-f0fd-4125-a4c4-2f8c3af35bf0",
"eeab9e3f-6158-4335-a5a0-7b4b79ac6056",
"f045d839-19e8-4d72-9ff3-809f00487934",
"e6ddb2b6-f137-488b-b171-c1748c089e15",
"8f69d768-5170-4245-b3dd-d57a14ef8bf9",
"4e1669f6-9f9c-4d0e-afd8-f4e29a7602af"
]
}
},
"format":"TSV",
"fields":"file_id,file_name,cases.submitter_id,cases.case_id,data_category,data_type,cases.samples.tumor_descriptor,cases.samples.tissue_type,cases.samples.sample_type,cases.samples.submitter_id,cases.samples.sample_id,cases.samples.portions.analytes.aliquots.aliquot_id,cases.samples.portions.analytes.aliquots.submitter_id",
"size":"100"
}
curl --request POST --header "Content-Type: application/json" --data @Payload.txt 'https://api.gdc.cancer.gov/files' > File_metadata.txt
cases.0.case_id cases.0.samples.0.portions.0.analytes.0.aliquots.0.aliquot_id cases.0.samples.0.portions.0.analytes.0.aliquots.0.submitter_id cases.0.samples.0.sample_id cases.0.samples.0.sample_type cases.0.samples.0.submitter_id cases.0.samples.0.tissue_type cases.0.samples.0.tumor_descriptor cases.0.submitter_id data_category data_type file_id file_name id
f0d8a1fe-e313-44f1-99cc-b965cbeeff0e 922226ba-6244-4953-ad42-f4daa474c288 TCGA-C8-A27B-10A-01D-A167-09 31139082-7978-45aa-9d8f-ac4789ac5cec Blood Derived Normal TCGA-C8-A27B-10A Normal Not Applicable TCGA-C8-A27B Sequencing Reads Aligned Reads a2ee0837-f3a9-42be-ba26-f2bb1d6a50c0 922226ba-6244-4953-ad42-f4daa474c288_wxs_gdc_realn.bam a2ee0837-f3a9-42be-ba26-f2bb1d6a50c0
e62a728d-390f-428a-bea1-fc8c9814fb11 641a0220-6eec-434a-b606-e256113b65da TCGA-CE-A484-10A-01D-A23U-08 27a8008e-044a-4966-b518-cc6905e292ca Blood Derived Normal TCGA-CE-A484-10A Normal Not Applicable TCGA-CE-A484 Sequencing Reads Aligned Reads 4e1669f6-9f9c-4d0e-afd8-f4e29a7602af 641a0220-6eec-434a-b606-e256113b65da_wxs_gdc_realn.bam 4e1669f6-9f9c-4d0e-afd8-f4e29a7602af
29c8f468-5ac1-4d6c-8376-e36e6d246926 02e65074-ffda-4795-b8f5-1bfd20bd1019 TCGA-B5-A0K0-10A-01W-A062-09 1df69e2e-f392-465f-8e61-4671ba2fcd35 Blood Derived Normal TCGA-B5-A0K0-10A Normal Not Applicable TCGA-B5-A0K0 Sequencing Reads Aligned Reads 53984642-d431-490e-8a8a-c59b872ace66 02e65074-ffda-4795-b8f5-1bfd20bd1019_wxs_gdc_realn.bam 53984642-d431-490e-8a8a-c59b872ace66
b5c1e511-baf2-45b3-9919-110e8941e3c2 2a8cb8fe-b64f-453e-8139-7ede12f3fc51 TCGA-EC-A24G-10A-01D-A16D-09 61cf2e54-1b8d-40a0-9c73-a7449cbd570a Blood Derived Normal TCGA-EC-A24G-10A Normal Not Applicable TCGA-EC-A24G Sequencing Reads Aligned Reads eeab9e3f-6158-4335-a5a0-7b4b79ac6056 2a8cb8fe-b64f-453e-8139-7ede12f3fc51_wxs_gdc_realn.bam eeab9e3f-6158-4335-a5a0-7b4b79ac6056
24faa36a-268d-4a13-b3ae-eacd431a2bcc c3feacc2-5a26-4bb2-a312-8b2ee53ccad1 TCGA-EE-A2GU-10A-01D-A198-08 cc4a5ed8-376a-4842-a25d-ffb07d8e1ca0 Blood Derived Normal TCGA-EE-A2GU-10A Normal Not Applicable TCGA-EE-A2GU Sequencing Reads Aligned Reads 8f69d768-5170-4245-b3dd-d57a14ef8bf9 c3feacc2-5a26-4bb2-a312-8b2ee53ccad1_wxs_gdc_realn.bam 8f69d768-5170-4245-b3dd-d57a14ef8bf9
8fc9cc74-f388-49f0-b957-debb62638634 30919a1a-df9f-4604-835e-f66ac7bcacdf TCGA-DA-A1IB-10A-01D-A198-08 432952c5-6505-4220-a581-f65270a45281 Blood Derived Normal TCGA-DA-A1IB-10A Normal Not Applicable TCGA-DA-A1IB Sequencing Reads Aligned Reads f045d839-19e8-4d72-9ff3-809f00487934 30919a1a-df9f-4604-835e-f66ac7bcacdf_wxs_gdc_realn.bam f045d839-19e8-4d72-9ff3-809f00487934
a9255dcb-b236-4777-ac43-555e3a5386c3 9f4ffc2f-d006-4d86-b3b1-b25020481893 TCGA-EB-A3XB-10B-01D-A23B-08 0e1d4c7c-204d-4765-b090-68ed4cd83835 Blood Derived Normal TCGA-EB-A3XB-10B Normal Not Applicable TCGA-EB-A3XB Sequencing Reads Aligned Reads b246b593-e1d1-4711-8aa5-d8e9eead9e2b 9f4ffc2f-d006-4d86-b3b1-b25020481893_wxs_gdc_realn.bam b246b593-e1d1-4711-8aa5-d8e9eead9e2b
a4225cb2-7b4b-4122-b6b9-629c26e3ea56 f4799bdc-b207-4053-9a4b-5a26ebf8ab91 TCGA-B9-A69E-10A-01D-A31X-10 5d6d6cd4-6a7b-499d-936a-1be9bf74b07f Blood Derived Normal TCGA-B9-A69E-10A Normal Not Applicable TCGA-B9-A69E Sequencing Reads Aligned Reads b2c51c85-f0fd-4125-a4c4-2f8c3af35bf0 f4799bdc-b207-4053-9a4b-5a26ebf8ab91_wxs_gdc_realn.bam b2c51c85-f0fd-4125-a4c4-2f8c3af35bf0
7a2cf5ce-8317-4fff-946e-b9937afab815 8c34ffe2-9012-4b4a-b610-a42a9c6a9780 TCGA-AX-A2HG-10A-01D-A17D-09 ef4b80ec-b453-48ec-8ad8-ccac83e1e4db Blood Derived Normal TCGA-AX-A2HG-10A Normal Not Applicable TCGA-AX-A2HG Sequencing Reads Aligned Reads e6ddb2b6-f137-488b-b171-c1748c089e15 8c34ffe2-9012-4b4a-b610-a42a9c6a9780_wxs_gdc_realn.bam e6ddb2b6-f137-488b-b171-c1748c089e15
e7a1cbe2-793c-4747-8412-8be794f2382b 66cbb40f-14b3-40c0-a332-e8a8e21bca11 TCGA-G7-6790-10A-01D-1962-08 4be83d0f-8b09-4e9e-8318-358371d34332 Blood Derived Normal TCGA-G7-6790-10A Normal Not Applicable TCGA-G7-6790 Sequencing Reads Aligned Reads 6c00906c-7eb7-484d-93a9-d5b2075e7b50 66cbb40f-14b3-40c0-a332-e8a8e21bca11_wxs_gdc_realn.bam 6c00906c-7eb7-484d-93a9-d5b2075e7b50
c787c4da-c564-44f1-89eb-dd9da107acb1 c723584a-c404-4c88-bfea-e40f5dbba542 TCGA-EB-A44O-10A-01D-A25O-08 5b738547-1825-4684-81bd-864bf2eb43ef Blood Derived Normal TCGA-EB-A44O-10A Normal Not Applicable TCGA-EB-A44O Sequencing Reads Aligned Reads 72c1126d-384f-4f8b-becf-92e0779525b7 c723584a-c404-4c88-bfea-e40f5dbba542_wxs_gdc_realn.bam 72c1126d-384f-4f8b-becf-92e0779525b7
fec0da58-1047-44d2-b6d1-c18cceed43dc cd761feb-9a20-4495-8943-c6243532a5cf TCGA-E9-A295-10A-01D-A16D-09 e74183e1-f0b4-412a-8dac-a62d404add78 Blood Derived Normal TCGA-E9-A295-10A Normal Not Applicable TCGA-E9-A295 Sequencing Reads Aligned Reads 5ca9fa79-53bc-4e91-82cd-5715038ee23e cd761feb-9a20-4495-8943-c6243532a5cf_wxs_gdc_realn.bam 5ca9fa79-53bc-4e91-82cd-5715038ee23e
53886143-c1c6-40e9-88e6-e4e5e0271fc8 e96d5811-4736-40dd-966d-e0e172aeb0af TCGA-A2-A3XX-10A-01D-A23C-09 c6eb6218-ad71-40a6-88b7-a4f1a015b816 Blood Derived Normal TCGA-A2-A3XX-10A Normal Not Applicable TCGA-A2-A3XX Sequencing Reads Aligned Reads 1bc55036-2c7a-4333-87fd-b336056a8f06 e96d5811-4736-40dd-966d-e0e172aeb0af_wxs_gdc_realn.bam 1bc55036-2c7a-4333-87fd-b336056a8f06
8aaa4e25-5c12-4ace-96dc-91aaa0c4457c b4e4630a-b38c-4b62-b0e8-d73f0e3b4e47 TCGA-B0-5094-11A-01D-1421-08 7519d7a8-c3ee-417b-9cfc-111bc5ad0637 Solid Tissue Normal TCGA-B0-5094-11A Normal Not Applicable TCGA-B0-5094 Sequencing Reads Aligned Reads b4bce3ff-7fdc-4849-880b-56f2b348ceac b4e4630a-b38c-4b62-b0e8-d73f0e3b4e47_wxs_gdc_realn.bam b4bce3ff-7fdc-4849-880b-56f2b348ceac
ae55b2d3-62a1-419e-9f9a-5ddfac356db4 45c68b6b-0bed-424d-9a77-4f87bbaa3649 TCGA-B0-5117-11A-01D-1421-08 b1116541-bece-4df3-b3dd-cec50aeb277b Solid Tissue Normal TCGA-B0-5117-11A Normal Not Applicable TCGA-B0-5117 Sequencing Reads Aligned Reads b7c3e5ad-4ffc-4fc4-acbf-1dfcbd2e5382 45c68b6b-0bed-424d-9a77-4f87bbaa3649_wxs_gdc_realn.bam b7c3e5ad-4ffc-4fc4-acbf-1dfcbd2e5382
Format
Specifies the format of the API response: JSON (default), TSV or XML.
Examples
curl 'https://api.gdc.cancer.gov/cases?fields=submitter_id&size=5&format=TSV'
import requests
cases_endpt = 'https://api.gdc.cancer.gov/cases'
params = {'fields':'submitter_id',
'format':'TSV'}
response = requests.get(cases_endpt, params = params)
print(response.content)
id submitter_id
0286c31b-a704-4d7d-99e3-0bc4e8975b8b HCM-CSHL-0084-C25
02f6d684-b6b5-419a-b0e1-b74d0a384a30 HCM-BROD-0408-C71
03974dc9-0162-4de8-9897-09f88693681a HCM-BROD-0334-C43
03bfeb7c-cecf-4691-8263-33cdfe391ea9 HCM-BROD-0124-C25
04cbceab-f945-482b-956b-840756a17a4a HCM-BROD-0421-C71
curl 'https://api.gdc.cancer.gov/cases?fields=submitter_id&size=5&format=XML&pretty=true'
import requests
cases_endpt = 'https://api.gdc.cancer.gov/cases'
params = {'fields':'submitter_id',
'format':'XML',
'pretty':'true'}
response = requests.get(cases_endpt, params = params)
print(response.content)
<?xml version="1.0" ?>
<response>
<data>
<hits>
<item>
<id>0286c31b-a704-4d7d-99e3-0bc4e8975b8b</id>
<submitter_id>HCM-CSHL-0084-C25</submitter_id>
</item>
<item>
<id>02f6d684-b6b5-419a-b0e1-b74d0a384a30</id>
<submitter_id>HCM-BROD-0408-C71</submitter_id>
</item>
<item>
<id>03974dc9-0162-4de8-9897-09f88693681a</id>
<submitter_id>HCM-BROD-0334-C43</submitter_id>
</item>
<item>
<id>03bfeb7c-cecf-4691-8263-33cdfe391ea9</id>
<submitter_id>HCM-BROD-0124-C25</submitter_id>
</item>
<item>
<id>04cbceab-f945-482b-956b-840756a17a4a</id>
<submitter_id>HCM-BROD-0421-C71</submitter_id>
</item>
</hits>
<pagination>
<count>5</count>
<total>86962</total>
<size>5</size>
<from>0</from>
<sort/>
<page>1</page>
<pages>17393</pages>
</pagination>
</data>
<warnings/>
</response>
Pretty
Returns when the pretty parameter is set to true, the API response is formatted with additional whitespace to improve legibility.
Example
curl 'https://api.gdc.cancer.gov/cases?fields=submitter_id&sort=submitter_id:asc&size=5'
{"data": {"hits": [{"id": "be37f1f7-2f98-4f74-bc04-6dd2ae2afcad", "submitter_id": "01BR001"}, {"id": "e6915db0-7c89-484d-8f9f-15cca68b82fc", "submitter_id": "01BR008"}, {"id": "16614d46-172b-479c-992b-e80a8e9a2c59", "submitter_id": "01BR009"}, {"id": "567fc9e3-17a6-42b1-a896-5e9a9507d1d8", "submitter_id": "01BR010"}, {"id": "54e89878-a1bc-4f5a-9d68-4842a469586e", "submitter_id": "01BR015"}], "pagination": {"count": 5, "total": 86962, "size": 5, "from": 0, "sort": "None", "page": 1, "pages": 17393}}, "warnings": {}}
curl 'https://api.gdc.cancer.gov/cases?fields=submitter_id&sort=submitter_id:asc&size=5&pretty=true'
{
"data": {
"hits": [
{
"id": "be37f1f7-2f98-4f74-bc04-6dd2ae2afcad",
"submitter_id": "01BR001"
},
{
"id": "e6915db0-7c89-484d-8f9f-15cca68b82fc",
"submitter_id": "01BR008"
},
{
"id": "16614d46-172b-479c-992b-e80a8e9a2c59",
"submitter_id": "01BR009"
},
{
"id": "567fc9e3-17a6-42b1-a896-5e9a9507d1d8",
"submitter_id": "01BR010"
},
{
"id": "54e89878-a1bc-4f5a-9d68-4842a469586e",
"submitter_id": "01BR015"
}
],
"pagination": {
"count": 5,
"total": 86962,
"size": 5,
"from": 0,
"sort": "None",
"page": 1,
"pages": 17393
}
},
"warnings": {}
}
Fields
This query parameter specifies which fields are to be included in the API response. The fields in the API response will be unordered. A listing of available fields for each endpoint is provided in Appendix A.
Example
The following example requests case submitter ID, file UUID, file name and file size from the files endpoint.
curl 'https://api.gdc.cancer.gov/files?fields=cases.submitter_id,file_id,file_name,file_size&pretty=true'
import requests
import json
files_endpt = 'https://api.gdc.cancer.gov/files'
params = {'fields':'cases.submitter_id,file_id,file_name,file_size'}
response = requests.get(files_endpt, params = params)
print(json.dumps(response.json(), indent=2))
{
"data": {
"hits": [
{
"id": "d570eccc-3c1c-4c4f-ae04-96be71fbe016",
"cases": [
{
"submitter_id": "TCGA-AN-A0FL"
}
],
"file_name": "TCGA-AN-A0FL-01Z-00-DX1.20A041C6-A306-4599-A7D1-65032A252AA9.svs",
"file_id": "d570eccc-3c1c-4c4f-ae04-96be71fbe016",
"file_size": 1055798681
},
{
"id": "0f8d8202-a1ca-4ea1-98b2-c20a6b08479a",
"cases": [
{
"submitter_id": "TCGA-AN-A0FL"
}
],
"file_name": "nationwidechildrens.org_ssf.TCGA-AN-A0FL.xml",
"file_id": "0f8d8202-a1ca-4ea1-98b2-c20a6b08479a",
"file_size": 15519
},
{
"id": "b76f87b3-99c5-4297-b2df-8cbea8ecaf61",
"cases": [
{
"submitter_id": "TCGA-BH-A18F"
}
],
"file_name": "7c4e4c2a-a0b1-424f-97d8-359825674429.wxs.aliquot_ensemble_masked.maf.gz",
"file_id": "b76f87b3-99c5-4297-b2df-8cbea8ecaf61",
"file_size": 21571
},
{
"id": "be6d269d-4305-4643-b98e-af703a067761",
"cases": [
{
"submitter_id": "TCGA-BH-A18F"
}
],
"file_name": "HITCH_p_TCGASNP_b93_N_GenomeWideSNP_6_E11_741424.CEL",
"file_id": "be6d269d-4305-4643-b98e-af703a067761",
"file_size": 69084893
},
{
"id": "fed73119-1d5e-4f7e-9713-183d1916422b",
"cases": [
{
"submitter_id": "TCGA-BH-A18F"
}
],
"file_name": "3b928f83-14a7-4bd6-a9b0-744b414d4495.wxs.varscan2.raw_somatic_mutation.vcf.gz",
"file_id": "fed73119-1d5e-4f7e-9713-183d1916422b",
"file_size": 35903
},
{
"id": "6877b045-91f1-4030-82ff-b90507e11e17",
"cases": [
{
"submitter_id": "TCGA-BH-A18F"
}
],
"file_name": "5057e3cb-25cd-4a67-8d31-6ac8508ba3c7.methylation_array.sesame.level3betas.txt",
"file_id": "6877b045-91f1-4030-82ff-b90507e11e17",
"file_size": 770500
},
{
"id": "07e8cdc7-d228-4752-ad19-800abd507277",
"cases": [
{
"submitter_id": "TCGA-BH-A0BM"
}
],
"file_name": "TCGA-BRCA.28dcad29-448e-4bcb-911d-556c6f4a5573.star_fusion.rna_fusion.tsv",
"file_id": "07e8cdc7-d228-4752-ad19-800abd507277",
"file_size": 234
},
{
"id": "fef57b45-ede1-49b0-b60d-957a55a15e0e",
"cases": [
{
"submitter_id": "TCGA-BH-A0BM"
}
],
"file_name": "nationwidechildrens.org_biospecimen.TCGA-BH-A0BM.xml",
"file_id": "fef57b45-ede1-49b0-b60d-957a55a15e0e",
"file_size": 127218
},
{
"id": "81a1b323-88b6-4837-bccf-ac84a79828b6",
"cases": [
{
"submitter_id": "TCGA-BH-A0BM"
}
],
"file_name": "TCGA-BRCA.4570b87f-8116-48bf-86d3-b993536c88db.gene_level_copy_number.v36.tsv",
"file_id": "81a1b323-88b6-4837-bccf-ac84a79828b6",
"file_size": 3446816
},
{
"id": "c6bf94a6-9940-4155-86b4-bbb10875dbdb",
"cases": [
{
"submitter_id": "TCGA-BH-A18F"
}
],
"file_name": "TCGA-BRCA.88cae21a-4890-4fdd-a678-c4864620942c.star_fusion.rna_fusion.bedpe",
"file_id": "c6bf94a6-9940-4155-86b4-bbb10875dbdb",
"file_size": 229
}
],
"pagination": {
"count": 10,
"total": 931947,
"size": 10,
"from": 0,
"sort": "",
"page": 1,
"pages": 93195
}
},
"warnings": {}
}
Expand
The expand parameter provides a shortcut to request multiple related fields (field groups) in the response. Instead of specifying each field using the fields parameter, users can specify a field group name using the expand parameter to request all fields in the group. Available field groups are listed in Appendix A; the list can also be accessed programmatically at the _mapping endpoint. The fields and expand parameters can be used together to request custom combinations of field groups and individual fields.
Example
curl 'https://api.gdc.cancer.gov/files/573ee7e9-b8bd-419e-808b-a027c4311731?expand=cases.samples&pretty=true'
{
"data": {
"proportion_reads_mapped": 0.9648433596149857,
"access": "controlled",
"proportion_base_mismatch": 0.004117986,
"contamination_error": 0,
"acl": [
"phs000178"
],
"type": "aligned_reads",
"platform": "Illumina",
"created_datetime": "2022-05-12T14:42:10.014925-05:00",
"updated_datetime": "2022-11-01T11:52:54.136033-05:00",
"pairs_on_diff_chr": 1170013,
"state": "released",
"data_format": "BAM",
"total_reads": 379313036,
"proportion_coverage_30x": 0.000109,
"cases": [
{
"samples": [
{
"sample_type_id": "10",
"tumor_descriptor": "Not Reported",
"sample_id": "4e128a37-be58-477a-a01f-448179360b7c",
"sample_type": "Blood Derived Normal",
"tumor_code": null,
"created_datetime": null,
"time_between_excision_and_freezing": null,
"composition": "Not Reported",
"updated_datetime": "2022-04-28T22:05:09.013808-05:00",
"days_to_collection": 6755,
"state": "released",
"initial_weight": null,
"preservation_method": null,
"intermediate_dimension": null,
"time_between_clamping_and_freezing": null,
"freezing_method": null,
"pathology_report_uuid": null,
"submitter_id": "TCGA-B6-A0RI-10A",
"tumor_code_id": null,
"shortest_dimension": null,
"oct_embedded": "false",
"days_to_sample_procurement": null,
"longest_dimension": null,
"current_weight": null,
"is_ffpe": false,
"tissue_type": "Not Reported"
}
]
}
],
"file_name": "c9478f7d-bfe3-4e80-8161-39b3d440fa16_wgs_gdc_realn.bam",
"mean_coverage": 5.452655,
"proportion_reads_duplicated": 0.009253781617987946,
"submitter_id": "a4e380e5-420e-49af-986d-e721601065fb",
"data_category": "Sequencing Reads",
"proportion_coverage_10x": 0.07674,
"file_size": 42958286722,
"contamination": 0,
"average_base_quality": 32,
"file_id": "573ee7e9-b8bd-419e-808b-a027c4311731",
"data_type": "Aligned Reads",
"average_insert_size": 207,
"average_read_length": 51,
"experimental_strategy": "WGS",
"version": "1",
"data_release": "36.0 - 37.0"
},
"warnings": {}
}
Size and From
GDC API provides a pagination feature that limits the number of results returned by the API. It is implemented using size and from query parameters.
The size query parameter specifies the maximum number of results to return. Default size is 10. If the number of query results is greater than size, only some of the results will be returned.
The from query parameter specifies the first record to return out of the set of results. For example, if there are 20 cases returned from the cases endpoint, then setting from to 11 will return results 12 to 20. The from parameter can be used in conjunction with the size parameter to return a specific subset of results.
Example
curl 'https://api.gdc.cancer.gov/files?fields=file_name&from=0&size=2&pretty=true'
import requests
import json
files_endpt = 'https://api.gdc.cancer.gov/files'
params = {'fields':'file_name',
'from':0, 'size':2}
response = requests.get(files_endpt, params = params)
print(json.dumps(response.json(), indent=2))
{
"data": {
"hits": [
{
"id": "d570eccc-3c1c-4c4f-ae04-96be71fbe016",
"file_name": "TCGA-AN-A0FL-01Z-00-DX1.20A041C6-A306-4599-A7D1-65032A252AA9.svs"
},
{
"id": "0f8d8202-a1ca-4ea1-98b2-c20a6b08479a",
"file_name": "nationwidechildrens.org_ssf.TCGA-AN-A0FL.xml"
}
],
"pagination": {
"count": 2,
"total": 931947,
"size": 2,
"from": 0,
"sort": "",
"page": 1,
"pages": 465974
}
},
"warnings": {}
}
curl 'https://api.gdc.cancer.gov/files?fields=file_name&from=101&size=5&pretty=true'
import requests
import json
files_endpt = 'https://api.gdc.cancer.gov/files'
params = {'fields':'file_name',
'from':101, 'size':5}
response = requests.get(files_endpt, params = params)
print(json.dumps(response.json(), indent=2))
{
"data": {
"hits": [
{
"id": "297933f5-1316-4cb6-b53f-9dbfa7f3d7ed",
"file_name": "TCGA-B6-A0RH-01A-02-TSB.ea83f31e-defb-4436-8a58-5b66b18d13b5.svs"
},
{
"id": "2f31e897-b3e8-49f1-a400-ccf9f00f294a",
"file_name": "URAEI_p_TCGASNP_b85_N_GenomeWideSNP_6_F01_735050.grch38.seg.v2.txt"
},
{
"id": "ebd6cf90-4f6b-4193-887a-22fdb5645fbc",
"file_name": "TCGA-BRCA.5994c06d-ee9b-4ead-b3d1-2e1f286f7d6d.ascat2.allelic_specific.seg.txt"
},
{
"id": "aebd6b5a-e676-4357-93df-523b31b55ea0",
"file_name": "TCGA-BRCA.c737131c-636f-4e1b-89b8-bb2d6ddd8164.star_fusion.rna_fusion.bedpe"
},
{
"id": "aa83a7e7-e9cc-4330-a7be-ca750cffb74c",
"file_name": "URAEI_p_TCGASNP_b85_N_GenomeWideSNP_6_F01_735050.birdseed.data.txt"
}
],
"pagination": {
"count": 5,
"total": 931947,
"size": 5,
"from": 101,
"sort": "",
"page": 21,
"pages": 186390
}
},
"warnings": {}
}
Sort
The sort query parameter sorts the results by a specific field, and with the sort direction specified using the :asc (ascending) or :desc (descending) prefix, e.g. sort=field:desc. A list of all valid field names is available in Appendix A; the list can also be accessed programmatically at the _mapping endpoint.
Example
Sort cases by submitter_id in ascending order:
curl 'https://api.gdc.cancer.gov/cases?fields=submitter_id&sort=submitter_id:asc&pretty=true'
import requests
import json
cases_endpt = 'https://api.gdc.cancer.gov/cases'
params = {'fields':'submitter_id',
'sort':'submitter_id:asc'}
response = requests.get(cases_endpt, params = params)
print(json.dumps(response.json(), indent=2))
{
"data": {
"hits": [
{
"id": "be37f1f7-2f98-4f74-bc04-6dd2ae2afcad",
"submitter_id": "01BR001"
},
{
"id": "e6915db0-7c89-484d-8f9f-15cca68b82fc",
"submitter_id": "01BR008"
},
{
"id": "16614d46-172b-479c-992b-e80a8e9a2c59",
"submitter_id": "01BR009"
},
{
"id": "567fc9e3-17a6-42b1-a896-5e9a9507d1d8",
"submitter_id": "01BR010"
},
{
"id": "54e89878-a1bc-4f5a-9d68-4842a469586e",
"submitter_id": "01BR015"
},
{
"id": "a1c7b7b9-b8c8-48c3-9420-55497f9318fd",
"submitter_id": "01BR017"
},
{
"id": "ce3c8b98-e275-4cfd-a379-940d675a564b",
"submitter_id": "01BR018"
},
{
"id": "e4ce89ef-bcaa-418a-8a6b-3602793b9bbf",
"submitter_id": "01BR020"
},
{
"id": "19d3c861-8a5f-49a2-acc0-b55b25465c35",
"submitter_id": "01BR023"
},
{
"id": "afae8dce-294a-4108-bb28-376f804ae5c4",
"submitter_id": "01BR025"
}
],
"pagination": {
"count": 10,
"total": 86962,
"size": 10,
"from": 0,
"sort": "None",
"page": 1,
"pages": 8697
}
},
"warnings": {}
}
Facets
The facets parameter provides aggregate information for a specified field. It provides all values that exist for that field, and the number of entities (cases, projects, files, or annotations) that this value. The primary intended use of this parameter is for displaying aggregate information in the GDC Data Portal.
The facets parameter can be used in conjunction with the filters parameter to get aggregate information for a set of search results. The following limitations apply when using facets and filters together:
- The
filtersobject's top level operator must beand, and the internal filters must be limited to:=,!=,in,exclude,is, andnot. - The information provided by
facetsfor a given field will disregard any filters applied to that same field.
Example
This is an example of a request for a count of projects in each program.
curl 'https://api.gdc.cancer.gov/projects?facets=program.name&from=0&size=0&sort=program.name:asc&pretty=true'
import requests
import json
projects_endpt = 'https://api.gdc.cancer.gov/projects'
params = {'facets':'program.name',
'from':0, 'size':0,
'sort':'program.name:asc'}
response = requests.get(projects_endpt, params = params)
print(json.dumps(response.json(), indent=2))
{
"data": {
"hits": [],
"aggregations": {
"program.name": {
"buckets": [
{
"doc_count": 33,
"key": "TCGA"
},
{
"doc_count": 10,
"key": "MATCH"
},
{
"doc_count": 9,
"key": "TARGET"
},
{
"doc_count": 4,
"key": "CGCI"
},
{
"doc_count": 3,
"key": "CMI"
},
{
"doc_count": 2,
"key": "BEATAML1.0"
},
{
"doc_count": 2,
"key": "CPTAC"
},
{
"doc_count": 2,
"key": "MP2PRT"
},
{
"doc_count": 1,
"key": "APOLLO"
},
{
"doc_count": 1,
"key": "CDDP_EAGLE"
},
{
"doc_count": 1,
"key": "CTSP"
},
{
"doc_count": 1,
"key": "EXCEPTIONAL_RESPONDERS"
},
{
"doc_count": 1,
"key": "FM"
},
{
"doc_count": 1,
"key": "HCMI"
},
{
"doc_count": 1,
"key": "MMRF"
},
{
"doc_count": 1,
"key": "NCICCR"
},
{
"doc_count": 1,
"key": "OHSU"
},
{
"doc_count": 1,
"key": "ORGANOID"
},
{
"doc_count": 1,
"key": "REBC"
},
{
"doc_count": 1,
"key": "TRIO"
},
{
"doc_count": 1,
"key": "VAREPOP"
},
{
"doc_count": 1,
"key": "WCDT"
}
]
}
},
"pagination": {
"count": 0,
"total": 79,
"size": 0,
"from": 0,
"sort": "None",
"page": 1,
"pages": 79
}
},
"warnings": {}
}
Example
In this sample POST request, both filters and facets parameters are used. Note that facets ignores the primary_site filter.
{
"filters":{
"op":"and",
"content":[
{
"op":"=",
"content":{
"field":"cases.project.primary_site",
"value":"Kidney"
}
},
{
"op":"=",
"content":{
"field":"project.program.name",
"value":"TCGA"
}
}
]
},
"size":"0",
"facets":"project.primary_site",
"pretty":"true"
}
curl --request POST --header "Content-Type: application/json" --data @Payload 'https://api.gdc.cancer.gov/v0/cases'
{
"data": {
"hits": [],
"aggregations": {
"project.primary_site": {
"buckets": [
{
"doc_count": 1202,
"key": "kidney"
},
{
"doc_count": 1191,
"key": "brain"
},
{
"doc_count": 1176,
"key": "bronchus and lung"
},
{
"doc_count": 1156,
"key": "breast"
},
{
"doc_count": 952,
"key": "colon"
},
{
"doc_count": 947,
"key": "stomach"
},
{
"doc_count": 878,
"key": "uterus, nos"
},
{
"doc_count": 869,
"key": "ovary"
},
{
"doc_count": 821,
"key": "corpus uteri"
},
{
"doc_count": 789,
"key": "other and unspecified parts of tongue"
},
{
"doc_count": 670,
"key": "connective, subcutaneous and other soft tissues"
},
{
"doc_count": 633,
"key": "rectosigmoid junction"
},
{
"doc_count": 586,
"key": "bones, joints and articular cartilage of other and unspecified sites"
},
{
"doc_count": 565,
"key": "thyroid gland"
},
{
"doc_count": 528,
"key": "base of tongue"
},
{
"doc_count": 528,
"key": "floor of mouth"
},
{
"doc_count": 528,
"key": "gum"
},
{
"doc_count": 528,
"key": "hypopharynx"
},
{
"doc_count": 528,
"key": "larynx"
},
{
"doc_count": 528,
"key": "lip"
},
{
"doc_count": 528,
"key": "oropharynx"
},
{
"doc_count": 528,
"key": "other and ill-defined sites in lip, oral cavity and pharynx"
},
{
"doc_count": 528,
"key": "other and unspecified parts of mouth"
},
{
"doc_count": 528,
"key": "palate"
},
{
"doc_count": 528,
"key": "tonsil"
},
{
"doc_count": 500,
"key": "prostate gland"
},
{
"doc_count": 498,
"key": "retroperitoneum and peritoneum"
},
{
"doc_count": 470,
"key": "skin"
},
{
"doc_count": 448,
"key": "heart, mediastinum, and pleura"
},
{
"doc_count": 428,
"key": "liver and intrahepatic bile ducts"
},
{
"doc_count": 412,
"key": "bladder"
},
{
"doc_count": 307,
"key": "cervix uteri"
},
{
"doc_count": 271,
"key": "adrenal gland"
},
{
"doc_count": 261,
"key": "bones, joints and articular cartilage of limbs"
},
{
"doc_count": 261,
"key": "meninges"
},
{
"doc_count": 261,
"key": "other and unspecified male genital organs"
},
{
"doc_count": 261,
"key": "peripheral nerves and autonomic nervous system"
},
{
"doc_count": 258,
"key": "hematopoietic and reticuloendothelial systems"
},
{
"doc_count": 208,
"key": "testis"
},
{
"doc_count": 185,
"key": "esophagus"
},
{
"doc_count": 185,
"key": "pancreas"
},
{
"doc_count": 179,
"key": "other and ill-defined sites"
},
{
"doc_count": 179,
"key": "other endocrine glands and related structures"
},
{
"doc_count": 179,
"key": "spinal cord, cranial nerves, and other parts of central nervous system"
},
{
"doc_count": 172,
"key": "rectum"
},
{
"doc_count": 172,
"key": "unknown"
},
{
"doc_count": 124,
"key": "thymus"
},
{
"doc_count": 80,
"key": "eye and adnexa"
},
{
"doc_count": 58,
"key": "lymph nodes"
},
{
"doc_count": 58,
"key": "other and unspecified major salivary glands"
},
{
"doc_count": 58,
"key": "small intestine"
},
{
"doc_count": 51,
"key": "gallbladder"
},
{
"doc_count": 51,
"key": "other and unspecified parts of biliary tract"
}
]
}
},
"pagination": {
"count": 0,
"total": 1202,
"size": 0,
"from": 0,
"sort": "",
"page": 1,
"pages": 1202
}
},
"warnings": {}
}
Alternative Request Format
The GDC API also supports POST requests with Content-Type: application/x-www-form-urlencoded (curl default), which require payloads in the following format:
filters=%7B%22op%22%3A%22in%22%2C%22content%22%3A%7B%22field%22%3A%22files.file_id%22%2C%22value%22%3A%5B%22b4bce3ff-7fdc-4849-880b-56f2b348ceac%22%2C%225ca9fa79-53bc-4e91-82cd-5715038ee23e%22%2C%22b7c3e5ad-4ffc-4fc4-acbf-1dfcbd2e5382%22%2C%221bc55036-2c7a-4333-87fd-b336056a8f06%22%2C%226c00906c-7eb7-484d-93a9-d5b2075e7b50%22%2C%22b246b593-e1d1-4711-8aa5-d8e9eead9e2b%22%2C%22a2ee0837-f3a9-42be-ba26-f2bb1d6a50c0%22%2C%2272c1126d-384f-4f8b-becf-92e0779525b7%22%2C%2253984642-d431-490e-8a8a-c59b872ace66%22%2C%22b2c51c85-f0fd-4125-a4c4-2f8c3af35bf0%22%2C%22eeab9e3f-6158-4335-a5a0-7b4b79ac6056%22%2C%22f045d839-19e8-4d72-9ff3-809f00487934%22%2C%22e6ddb2b6-f137-488b-b171-c1748c089e15%22%2C%228f69d768-5170-4245-b3dd-d57a14ef8bf9%22%2C%224e1669f6-9f9c-4d0e-afd8-f4e29a7602af%22%5D%7D%7D&fields=file_id,file_name,cases.submitter_id,cases.case_id,data_category,data_type,cases.samples.tumor_descriptor,cases.samples.tissue_type,cases.samples.sample_type,cases.samples.submitter_id,cases.samples.sample_id&format=tsv&size=100
Using Wildcards
The GDC API supports the use of the wildcard character, an asterisk (*), in the value fields of a JSON query. For example, if a user wanted to retrieve information about projects with a disease type that ended in "Adenocarcinoma" a query for "disease_type": "*Adenocarcinoma" would be appropriate. See below:
{
"size":"20000",
"pretty":"TRUE",
"fields":"submitter_id,disease_type",
"format":"TSV",
"filters":{
"op":"=",
"content":{
"field":"disease_type",
"value":"*Adenocarcinoma"
}
}
}
Quicksearch Endpoint
The GDC Portal has a quicksearch functionality that allows for a project, case, or file to be queried from a search box. This function calls the /v0/all endpoint, which retrieves the top cases, files, projects, genes, mutations, and annotations that match to the query. The quicksearch can also be used programmatically through the API. For example, a search term of 'TCGA' would produce the following query:
curl "https://api.gdc.cancer.gov/v0/all?query=TCGA&size=5"
{"data":{"query":{"hits":[{"disease_type":["Adenomas and Adenocarcinomas"],"id":"UHJvamVjdDpUQ0dBLUFDQw==","name":"Adrenocortical Carcinoma","primary_site":["Adrenal gland"],"project_id":"TCGA-ACC","project_quicksearch":"Adrenocortical Carcinoma"},{"disease_type":["Adenomas and Adenocarcinomas"],"id":"UHJvamVjdDpUQ0dBLUtJQ0g=","name":"Kidney Chromophobe","primary_site":["Kidney"],"project_id":"TCGA-KICH","project_quicksearch":"Kidney Chromophobe"},{"disease_type":["Adenomas and Adenocarcinomas"],"id":"UHJvamVjdDpUQ0dBLUxJSEM=","name":"Liver Hepatocellular Carcinoma","primary_site":["Liver and intrahepatic bile ducts"],"project_id":"TCGA-LIHC","project_quicksearch":"Liver Hepatocellular Carcinoma"},{"disease_type":["Myeloid Leukemias"],"id":"UHJvamVjdDpUQ0dBLUxBTUw=","name":"Acute Myeloid Leukemia","primary_site":["Hematopoietic and reticuloendothelial systems"],"project_id":"TCGA-LAML","project_quicksearch":"Acute Myeloid Leukemia"},{"disease_type":["Adenomas and Adenocarcinomas"],"id":"UHJvamVjdDpUQ0dBLUtJUlA=","name":"Kidney Renal Papillary Cell Carcinoma","primary_site":["Kidney"],"project_id":"TCGA-KIRP","project_quicksearch":"Kidney Renal Papillary Cell Carcinoma"}],"total":183550}}}
This endpoint can be used to quickly retrieve information about a file. For example, if a user wanted to know the UUID for nationwidechildrens.org_biospecimen.TCGA-EL-A4K1.xml, the following query could be used to quickly retrieve it programmatically:
curl "https://api.gdc.cancer.gov/v0/all?query=nationwidechildrens.org_biospecimen.TCGA-EL-A4K1.xml&size=5"
{"data":{"query":{"hits":[{"file_id":"a74abfec-db78-4ed4-9e4b-604b66e30e30","file_name":"nationwidechildrens.org_biospecimen.TCGA-EL-A4K1.xml","id":"RmlsZTphNzRhYmZlYy1kYjc4LTRlZDQtOWU0Yi02MDRiNjZlMzBlMzA=","submitter_id":"nationwidechildrens.org_biospecimen.TCGA-EL-A4K1.xml"}],"total":1}}}
Additional Examples
More examples of API functionality described in this section are provided in Additional Examples.