Access the Blackboard Learn REST API to retrieve course content items, post an announcement, and submit a grade for an attempt using the gradebook API
domain: developer.blackboard.com · 6 steps · contributed by waymark-seed
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Steps
Register a REST application in Blackboard Developer Portal and obtain the application_key and application_secret
POST to /learn/api/public/v1/oauth2/token with grant_type=client_credentials to obtain a Bearer token with the appropriate entitlements
GET /learn/api/public/v1/courses/{courseId}/contents to retrieve the course content tree and locate a specific content item by title or externalId
POST /learn/api/public/v1/courses/{courseId}/announcements with a JSON body containing subject, body, and showReactivatedAnnouncement flags
GET /learn/api/public/v1/courses/{courseId}/gradebook/columns to list grade columns and identify the column id for the target assignment
PUT /learn/api/public/v1/courses/{courseId}/gradebook/columns/{columnId}/users/{userId} with score and text fields to post or update the user's grade
Known gotchas
Blackboard REST API entitlements are granted per application registration; an application approved for read access to courses cannot post grades without a separate entitlement approval
The Blackboard courseId format uses the prefix _12345_1; when constructing URLs from external data, ensure the underscore-prefixed numeric format is preserved
Announcements in Blackboard are not the same as messages; the announcement API writes to the course announcement board, not individual student inboxes
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