# Forum {% hint style="warning" %} **Welcome to Our New API Docs!** This is the new home for all things API (previously at [Canvas LMS REST API Documentation](https://api.instructure.com)). {% endhint %} ## Forum ### discussion\_entry\_created **Definition:** The event is emitted anytime an end user or a system replies to a discussion topic or thread. **Trigger:** Triggered when a user replies to the discussion topic or thread. #### Event Body Schema | Field | Description | | ---------------------------------------------------------------------- | --------------------------------------------------------------------------- | | **data\[0].group.extensions\["com.instructure.canvas"].context\_type** | Canvas context type where the action took place e.g context\_type = Course. | | **data\[0].group.extensions\["com.instructure.canvas"].entity\_id** | Canvas context ID | | **data\[0].object.extensions\["com.instructure.canvas"].entity\_id** | Canvas global ID of the object affected by the event | | **data\[0].object.type** | Message | #### Payload Example: ```json { "sensor": "http://oxana.instructure.com/", "sendTime": "2019-11-16T02:09:04.044Z", "dataVersion": "http://purl.imsglobal.org/ctx/caliper/v1p1", "data": [ { "@context": "http://purl.imsglobal.org/ctx/caliper/v1p1", "id": "urn:uuid:9cc50e7d-2cf0-4ba7-a35f-c299cc7a6ca3", "type": "MessageEvent", "actor": { "id": "urn:instructure:canvas:user:21070000000098765", "type": "Person", "extensions": { "com.instructure.canvas": { "user_login": "oxana@example.com", "user_sis_id": "456-T45", "root_account_id": "21070000000000001", "root_account_lti_guid": "VicYj3cu5BIFpoZhDVU4DZumnlBrWi1grgJEzADs.oxana.instructure.com", "root_account_uuid": "VicYj3cu5BIFpoZhDVU4DZumnlBrWi1grgJEzADs", "entity_id": "21070000000098765" } } }, "action": "Posted", "object": { "id": "urn:instructure:canvas:discussionEntry:2134567", "type": "Message", "extensions": { "com.instructure.canvas": { "entity_id": "2134567" } }, "isPartOf": { "id": "urn:instructure:canvas:discussion:123456", "type": "Thread" }, "body": "

test this discussion

" }, "eventTime": "2019-11-01T19:11:03.933Z", "referrer": "https://oxana.instructure.com/courses/2982/discussion_topics/123456", "edApp": { "id": "http://oxana.instructure.com/", "type": "SoftwareApplication" }, "group": { "id": "urn:instructure:canvas:course:21070000000000565", "type": "CourseOffering", "extensions": { "com.instructure.canvas": { "context_type": "Course", "entity_id": "21070000000000565" } } }, "membership": { "id": "urn:instructure:canvas:course:21070000000000565:Learner:21070000000098765", "type": "Membership", "member": { "id": "urn:instructure:canvas:user:21070000000098765", "type": "Person" }, "organization": { "id": "urn:instructure:canvas:course:21070000000000565", "type": "CourseOffering" }, "roles": [ "Learner" ] }, "session": { "id": "urn:instructure:canvas:session:ef686f8ed684abf78cbfa1f6a58112b5", "type": "Session" }, "extensions": { "com.instructure.canvas": { "hostname": "oxana.instructure.com", "request_id": "1dd9dc6f-2fb0-4c19-a6c5-7ee1bf3ed295", "user_agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36", "client_ip": "93.184.216.34", "request_url": "https://oxana.instructure.com/api/v1/courses/452/discussion_topics/123456/entries/62152/replies", "version": "1.0.0" } } } ] } ``` ### discussion\_topic\_created **Definition:** The event is emitted anytime an new discussion topic is created by an end user or API request. **Trigger:** Triggered when a new discussion topic is created in a course. Also triggered when a new course announcement is created with `is_announcement` set to TRUE. #### Event Body Schema | Field | Description | | -------------------------------------------------------------------------- | --------------------------------------------------------------------------- | | **data\[0].group.extensions\["com.instructure.canvas"].context\_type** | Canvas context type where the action took place e.g context\_type = Course. | | **data\[0].group.extensions\["com.instructure.canvas"].entity\_id** | Canvas context ID | | **data\[0].object.extensions\["com.instructure.canvas"].entity\_id** | Canvas global ID of the object affected by the event | | **data\[0].object.extensions\["com.instructure.canvas"].is\_announcement** | true if this topic was posted as an announcement, false otherwise | | **data\[0].object.type** | Thread | #### Payload Example: ```json { "sensor": "http://oxana.instructure.com/", "sendTime": "2019-11-21T23:47:22.279Z", "dataVersion": "http://purl.imsglobal.org/ctx/caliper/v1p1", "data": [ { "@context": "http://purl.imsglobal.org/ctx/caliper/v1p1", "id": "urn:uuid:2cdf5feb-c60c-4fbe-af47-ba48308a89ec", "type": "ThreadEvent", "actor": { "id": "urn:instructure:canvas:user:21070000000000001", "type": "Person", "extensions": { "com.instructure.canvas": { "user_login": "oxana", "user_sis_id": "456-T45", "root_account_id": "21070000000000001", "root_account_lti_guid": "VicYj3cu5BIFpoZhDVU4DZumnlBrWi1grgJEzADs.oxana.instructure.com", "root_account_uuid": "VicYj3cu5BIFpoZhDVU4DZumnlBrWi1grgJEzADs", "entity_id": "21070000000000001" } } }, "action": "Created", "object": { "id": "urn:instructure:canvas:discussion:140000002236385", "type": "Thread", "name": "Week 10: Sin, cos, and tan", "extensions": { "com.instructure.canvas": { "is_announcement": true, "entity_id": "140000002236385" } } }, "eventTime": "2019-11-01T19:11:15.491Z", "referrer": "https://oxana.instructure.com/courses/565/discussion_topics/new?is_announcement=true", "edApp": { "id": "http://oxana.instructure.com/", "type": "SoftwareApplication" }, "group": { "id": "urn:instructure:canvas:course:565", "type": "CourseOffering", "extensions": { "com.instructure.canvas": { "context_type": "Course", "entity_id": "565" } } }, "membership": { "id": "urn:instructure:canvas:course:565:Instructor:21070000000000001", "type": "Membership", "member": { "id": "urn:instructure:canvas:user:21070000000000001", "type": "Person" }, "organization": { "id": "urn:instructure:canvas:course:565", "type": "CourseOffering" }, "roles": [ "Instructor" ] }, "session": { "id": "urn:instructure:canvas:session:ef686f8ed684abf78cbfa1f6a58112b5", "type": "Session" }, "extensions": { "com.instructure.canvas": { "hostname": "oxana.instructure.com", "request_id": "1dd9dc6f-2fb0-4c19-a6c5-7ee1bf3ed295", "user_agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36", "client_ip": "93.184.216.34", "request_url": "https://oxana.instructure.com/api/v1/courses/565/discussion_topics", "version": "1.0.0" } } } ] } ``` *** This documentation is generated directly from the Canvas LMS source code, available [on Github](https://github.com/instructure/canvas-lms). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://developerdocs.instructure.com/services/canvas/data-services/live-events/event-format/caliper-ims-1.1/file.data_service_caliper_forum.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.