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 comparision 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 comparision 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.

This table describes attributes of the ActivityCursorPage entity.

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

Field	Type	Description
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`.
beforeCursor	String	A string value that is required to retrieve the previous page of activities. `Read-only`.
afterCursor	String	A string value that is required to retrieve the next page of activities. `Read-only`.
hasBefore	Boolean	Indicates if the previous page exists. `Read-only`.
hasAfter	Boolean	Indicates if the next page exists. `Read-only`.
activities	ActivityItem	The list of activities in the page. `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	Start timestamp of the time interval the activity timestamp belongs to. If the parameter is not set, it is considered to be 0.
end	String	End timestamp of the time interval the activity timestamp belongs to. If the parameter is not set, it is considered as Long.MAX_VALUE.
author	String	Parameter to filter activities by the author. The database id or login, or Hub id, or 'me' for the current logged in user could be specified.
cursor	String	The main application for the cursor is the pagination of activities. The Activities is a frequently changing collection, and new activities might be created between two requests. In this case, the general approach to pagination using "top" and "skip" parameters does not work. Instead, use the following pagination approach: Request a page using one of the "activitiesPage" resources. Take one of 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, then the response page starts either from the oldest activity or from 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: a collection of 4 activity items: A, B, C, D a request that returned the page containing only 1 item: [B] Mentioned page can be presented by the following JSON (see: ActivityCursorPage): { "activities": [B] "cursorBefore": "A^B" // the value differs from the real one and only used for the demonstration "cursorAfter": "B^C" // the value differs from the real one and only used for the demonstration "hasBefore": true "hasAfter": true "reverse": false } Such page could be received by a request to the following endpoint: /api/activitiesPage?activityId=B&$top=1 The real value of the cursor is a complication string. Used notation "A^B" shows that the cursor points to the gap between items A and B. In order to request nearby pages of activities we can use the cursors of received page and request the page starting from the cursor to different directions. The following combinations a possible: Request `/api/activitiesPage?$top=100&cursor=A^B&reverse=false` returns page with [B, C, D] items. Request `/api/activitiesPage?$top=100&cursor=A^B&reverse=true` returns page with [A] item. Request `/api/activitiesPage?$top=100&cursor=B^C&reverse=false` returns page with [C, D] items. Request `/api/activitiesPage?$top=100&cursor=B^C&reverse=true` returns 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 URI

https://example.myjetbrains.com/youtrack/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: 28 October 2020