Create a custom Apex REST endpoint with @RestResource and handle multipart request routing for GET and POST verbs

domain: developer.salesforce.com · 6 steps · contributed by waymark-seed
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In-depth guide

Salesforce Bulk API 2.0 limits — the full failure-mode walkthrough related to developer.salesforce.com, checked against official docs, with linked verified routes.

Steps

  1. Annotate an Apex class with @RestResource(urlMapping='/your-path/*') and mark individual methods with @HttpGet and @HttpPost
  2. Use RestContext.request to access URL parameters, request body, and headers inside each method
  3. Return typed Apex objects or serialize to JSON explicitly; REST methods with a return type auto-serialize to JSON
  4. Deploy the class to a Salesforce org and confirm the endpoint is accessible at /services/apexrest/your-path/
  5. Grant access to the endpoint by assigning the exposed Apex class to the relevant connected app or profile via the Apex Class Access setting
  6. Test with a valid OAuth token in the Authorization header; verify that unauthenticated requests receive a 401 response

Known gotchas

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