Operations with Specific ActivityCursorPage

This resource provides access to the issue activities wrapping it to the page object. The main advantage of the page in comparison to a list of activities is cursors. The page provides boundary marks that allows continuing iteration over the activities from the place the page is finished.

Resource	/api/issues/{issueID}/activitiesPage
Returned entity	ActivityCursorPage. For the description of the entity attributes, see Supported Fields section.
Supported methods	`GET`: Read a Specific ActivityCursorPage.

ActivityCursorPage attributes

Represents a page object that wraps a list of issue activities. The main advantage of the page in comparison to a list of activities is cursors. The page provides boundary marks that allow continuous iteration over the activities from the place the page is finished.

Related Resources

Below you can find the list of resources that let you work with this entity.

Attributes

This table describes attributes of the ActivityCursorPage entity.

To receive an attribute in the response from the server, specify it explicitly in the fields request parameter.
To update an attribute, provide it in the body of a POST request.

Field	Type	Description
id	String	The ID of the activity cursor page. `Read-only`.
activities	Array of ActivityItems	The list of activities in the page. `Read-only`.
afterCursor	String	A string value that is required to retrieve the next page of activities. `Read-only`.
beforeCursor	String	A string value that is required to retrieve the previous page of activities. `Read-only`.
hasAfter	Boolean	Indicates if the next page exists. `Read-only`.
hasBefore	Boolean	Indicates if the previous page exists. `Read-only`.
reverse	Boolean	Indicates whether the order of returning activities on the page is from newest to oldest or the opposite. If `false`, then the oldest activity item that matches a selected filter is returned first. If `true`, then the newest activity is returned first. By default, `false`. `Read-only`.

Read a Specific ActivityCursorPage

Read a page of activities in the specific issue.

Request syntax

            GET /api/issues/{issueID}/activitiesPage?{fields}&{categories}&{reverse}&{start}&{end}&{author}&{cursor}&{activityId}
        

Request parameters

Parameter	Type	Description
fields	String	A list of ActivityCursorPage attributes that should be returned in the response. If no field is specified, only the `entityID` is returned.
categories	String	Mandatory. Parameter filters returned activities by categories. You must specify at least one category per request. You can specify the `categories` query parameter in either of these formats: `categories=IssueCreatedCategory&categories=CommentsCategory` `categories=IssueCreatedCategory,CommentsCategory` See this table for mapping between available categories and returned types of activity items.
reverse	Boolean	Indicates whether the order of returning activities is from newest to oldest or the opposite. If `false`, then the oldest activity item that matches a selected filter is returned first. If `true`, then the newest activity is returned first. By default, `false`.
start	String	The timestamp in milliseconds indicating the start of the time interval the activity timestamp belongs to. Stored as a unix timestamp at UTC. If the parameter is not set, it is considered to be 0.
end	String	The timestamp in milliseconds indicating the end of the time interval the activity timestamp belongs to. Stored as a unix timestamp at UTC. If the parameter is not set, it is considered as `Long.MAX_VALUE`.
author	String	Parameter to filter activities by the author. You can specify one of the following parameters: the database ID, login, Hub ID, or `me` for the currently logged in user.
cursor	String	The main application for cursors is the pagination of activities. The `Activities` is a frequently changing collection, and new activities might be created between two consecutive requests. The general pagination method with `$top` and `$skip` parameters does not work in this case. Instead, use the following pagination approach: Request a page using one of the `activitiesPage` resources. Take one of the cursors from the returned activity page. Put this value as the `cursor` parameter for the request of the next page. If the `cursor` is not specified in the request, the response page starts either from the oldest activity or the newest one, depending on the requested order (direct or reverse). Use case: Let's consider the following statements as initial conditions for the example: There is a collection of four activity items: A, B, C, and D. A request has been made that returned a page containing only 1 item: [B]. The following JSON presents the mentioned page (see: ActivityCursorPage): { "activities": [B] "cursorBefore": "A^B" // the value differs from the real one and is only used for the demonstration "cursorAfter": "B^C" // the value differs from the real one and is only used for the demonstration "hasBefore": true "hasAfter": true "reverse": false } A request to the following endpoint could receive such a page: /api/activitiesPage?activityId=B&$top=1 The real value of the cursor is a complication string. Used notation "A^B" shows that the cursor points to the gap between items A and B. To request nearby pages of activities, we can use the cursors of the received page and request the page starting from the cursor to different directions. The following combinations are possible: Request `/api/activitiesPage?$top=100&cursor=A^B&reverse=false` returns a page with [B, C, D] items. Request `/api/activitiesPage?$top=100&cursor=A^B&reverse=true` returns a page with [A] item. Request `/api/activitiesPage?$top=100&cursor=B^C&reverse=false` returns a page with [C, D] items. Request `/api/activitiesPage?$top=100&cursor=B^C&reverse=true` returns a page with [B, A] items.
activityId	String	ID of the activity that should be included in the page. The activity is allocated to the middle of the page.

Sample

Sample request

                https://example.youtrack.cloud/api/issues/2-31/activitiesPage?fields=id,beforeCursor,afterCursor,activities(id,author(name,login),timestamp)&categories=CommentsCategory,IssueCreatedCategory,SummaryCategory,WorkItemCategory,ProjectCategory,IssueVisibilityCategory,AttachmentsCategory
            

Sample response body

                {
                  "afterCursor": "AI.2-31+:CM.4-2+:TT.^+:RH.9-61+:1535649875680",
                  "beforeCursor": "AI.^+:CM.^+:TT.^+:RH.^+:1533139032010",
                  "activities": [
                    {
                      "id": "2-31.0-0",
                      "author": {
                        "login": "john.doe",
                        "name": "John Doe",
                        "$type": "User"
                      },
                      "timestamp": 1533139032010,
                      "$type": "IssueCreatedActivityItem"
                    },
                    {
                      "id": "4-0.0-0",
                      "author": {
                        "login": "jane.doe",
                        "name": "Jane Doe",
                        "$type": "User"
                      },
                      "timestamp": 1533214812208,
                      "$type": "CommentActivityItem"
                    },
                    {
                      "id": "4-2.0-0",
                      "author": {
                        "login": "john.doe",
                        "name": "John Doe",
                        "$type": "User"
                      },
                      "timestamp": 1533221614364,
                      "$type": "CommentActivityItem"
                    },
                    {
                      "author": {
                        "login": "john.doe",
                        "name": "John Doe",
                        "$type": "User"
                      },
                      "timestamp": 1535649875680,
                      "id": "0-0.9-60",
                      "$type": "SimpleValueActivityItem"
                    },
                    {
                      "author": {
                        "login": "john.doe",
                        "name": "John Doe",
                        "$type": "User"
                      },
                      "timestamp": 1535649875680,
                      "id": "0-0.9-61",
                      "$type": "VisibilityGroupActivityItem"
                    }
                  ],
                  "id": "AI.^+:CM.^+:TT.^+:RH.^+:1533139032010#AI.2-31+:CM.4-2+:TT.^+:RH.9-61+:1535649875680.d",
                  "$type": "ActivityCursorPage"
                }
            

Last modified: 7 November 2024