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- You access a resource by sending an HTTP request to the TCIA API server. The server replies with a response that either contains the data you requested, or a status indicator.
- You can access the metadata of an API by appending /metadata to the end of the query. See examples. The metadata is in JSON format and conforms to this schema
- Most APIs can return results as CSV/JSON/XML/HTML. You can specify the return format by including the query parameter format
- Every request must contain an API-KEY. The key can be included in the url by adding an extra query parameter api_key or it can be included in the HTTP headers.
You can obtain one API-KEY and use that for your application; you do not need a separate API-KEY for each user of your software.. To obtain an API-Key please send a request to help@cancerimagingarchive.net or contact TCIA's help desk by phone at: +1 314-747-4254385-275-8242 ( 385 ASK-TCIA). - An API request takes the following structure:
<BaseURL><Resource><QueryEndpoint>?<QueryParameters><Format>
For example, the API shown below is a request to get all studies in the TCGA-GBM collection for patient GBM-0123 as CSV
https://services.cancerimagingarchive.net/services/v2/TCIA/query/getPatientStudy?Collection=TCGA-GBM&PatientID=GBM-0123&format=csv
This can be broken down as follows:
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