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You can find The Swagger files for all available caDSR II REST APIs can be found here as the caDSR II API Portal.in the following API Portal:

https://cadsrapi.cancer.gov/NCIAPIPortal/listAPIs

You can browse caDSR II API domain classes in the following API Browser. A folder icon next to a class name indicates that you can click on that node to perform a search:

https://cadsrapi.cancer.gov/caDSR/domain/browser.dsp

We have designed the primary caDSR II APIs for The caDSR II APIs have been designed with ease of migration for existing customers. There is a change to the syntax of the URLs, but everything else is the same.  For example to retrieve The following example retrieves the latest version of the CDE with public Id ID 62 the legacy API: 

Legacy Format: cadsrapi.nci.nih.gov/cadsrapi4/GetXML?query=DataElement[@publicId=62][@latestVersionIndicator=Yes]

...

• https://cadsrapi.cancer.gov/invoke/caDSR/GetXML?query=DataElement[@publicId=62,@latestVersionIndicator=

...

• Yes]

NoteKeep in mind the following points:

• Both the publicId and latestVersionIndicator attribute criteria on DataElement are in brackets separated by a comma ","
• Class and attribute names are the same as in the legacy format
• .
• caDSR II offers XML, HTML, and now JSON formats are available. To switch object format, change the "Get" parameter: GetXML, GetHTML, or GetJSON

A new caDSR II API has been created for retrieving a caDSR form with all its collections, or "flattened". This means for a given form, all Modules, Questions, Valid Values and related instructions are returned in one call. The results are returned as a JSON file.

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