]> git.immae.eu Git - github/Chocobozzz/PeerTube.git/blobdiff - support/doc/api/openapi.yaml
Add filter by start/end date overall stats in api
[github/Chocobozzz/PeerTube.git] / support / doc / api / openapi.yaml
index 5746d3a47f87c6220bc92bc6f104df838c90e13b..294aa50abe0d967d5a1dedfa07eacbf73386e635 100644 (file)
@@ -252,6 +252,8 @@ tags:
 
       The import function is practical when the desired video/audio is available online. It makes PeerTube
       download it for you, saving you as much bandwidth and avoiding any instability or limitation your network might have.
 
       The import function is practical when the desired video/audio is available online. It makes PeerTube
       download it for you, saving you as much bandwidth and avoiding any instability or limitation your network might have.
+  - name: Video Imports
+    description: Operations dealing with listing, adding and removing video imports.
   - name: Video Captions
     description: Operations dealing with listing, adding and removing closed captions of a video.
   - name: Video Channels
   - name: Video Captions
     description: Operations dealing with listing, adding and removing closed captions of a video.
   - name: Video Channels
@@ -271,6 +273,8 @@ tags:
     description: Operations on video files
   - name: Video Transcoding
     description: Video transcoding related operations
     description: Operations on video files
   - name: Video Transcoding
     description: Video transcoding related operations
+  - name: Video stats
+    description: Video statistics
   - name: Feeds
     description: Server syndication feeds
   - name: Search
   - name: Feeds
     description: Server syndication feeds
   - name: Search
@@ -306,11 +310,13 @@ x-tagGroups:
     tags:
       - Video
       - Video Upload
     tags:
       - Video
       - Video Upload
+      - Video Imports
       - Video Captions
       - Video Channels
       - Video Comments
       - Video Rates
       - Video Playlists
       - Video Captions
       - Video Channels
       - Video Comments
       - Video Rates
       - Video Playlists
+      - Video Stats
       - Video Ownership Change
       - Video Mirroring
       - Video Files
       - Video Ownership Change
       - Video Mirroring
       - Video Files
@@ -587,6 +593,30 @@ paths:
         '204':
           description: successful operation
 
         '204':
           description: successful operation
 
+  /jobs/pause:
+    post:
+      summary: Pause job queue
+      security:
+        - OAuth2:
+          - admin
+      tags:
+        - Job
+      responses:
+        '204':
+          description: successful operation
+
+  /jobs/resume:
+    post:
+      summary: Resume job queue
+      security:
+        - OAuth2:
+          - admin
+      tags:
+        - Job
+      responses:
+        '204':
+          description: successful operation
+
   /jobs/{state}:
     get:
       summary: List instance jobs
   /jobs/{state}:
     get:
       summary: List instance jobs
@@ -1476,6 +1506,23 @@ paths:
               schema:
                 $ref: '#/components/schemas/VideoListResponse'
 
               schema:
                 $ref: '#/components/schemas/VideoListResponse'
 
+  /users/me/history/videos/{videoId}:
+    delete:
+      summary: Delete history element
+      security:
+        - OAuth2: []
+      tags:
+        - My History
+      parameters:
+        - name: videoId
+          in: path
+          required: true
+          schema:
+            $ref: '#/components/schemas/Video/properties/id'
+      responses:
+        '204':
+          description: successful operation
+
   /users/me/history/videos/remove:
     post:
       summary: Clear video history
   /users/me/history/videos/remove:
     post:
       summary: Clear video history
@@ -1512,8 +1559,10 @@ paths:
               schema:
                 type: object
                 properties:
               schema:
                 type: object
                 properties:
-                  avatar:
-                    $ref: '#/components/schemas/ActorImage'
+                  avatars:
+                    type: array
+                    items:
+                      $ref: '#/components/schemas/ActorImage'
         '413':
           description: image file too large
           headers:
         '413':
           description: image file too large
           headers:
@@ -1573,7 +1622,7 @@ paths:
         '403':
           description: cannot terminate an ownership change of another user
         '404':
         '403':
           description: cannot terminate an ownership change of another user
         '404':
-          description: video owneship change not found
+          description: video ownership change not found
 
   '/videos/ownership/{id}/refuse':
     post:
 
   '/videos/ownership/{id}/refuse':
     post:
@@ -1590,7 +1639,7 @@ paths:
         '403':
           description: cannot terminate an ownership change of another user
         '404':
         '403':
           description: cannot terminate an ownership change of another user
         '404':
-          description: video owneship change not found
+          description: video ownership change not found
 
   '/videos/{id}/give-ownership':
     post:
 
   '/videos/{id}/give-ownership':
     post:
@@ -1856,12 +1905,19 @@ paths:
 
   '/videos/{id}/views':
     post:
 
   '/videos/{id}/views':
     post:
-      summary: Add a view to a video
+      summary: Notify user is watching a video
+      description: Call this endpoint regularly (every 5-10 seconds for example) to notify the server the user is watching the video. After a while, PeerTube will increase video's viewers counter. If the user is authenticated, PeerTube will also store the current player time.
       operationId: addView
       tags:
         - Video
       parameters:
         - $ref: '#/components/parameters/idOrUUID'
       operationId: addView
       tags:
         - Video
       parameters:
         - $ref: '#/components/parameters/idOrUUID'
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/UserViewingVideo'
+        required: true
       responses:
         '204':
           description: successful operation
       responses:
         '204':
           description: successful operation
@@ -1869,7 +1925,8 @@ paths:
   '/videos/{id}/watching':
     put:
       summary: Set watching progress of a video
   '/videos/{id}/watching':
     put:
       summary: Set watching progress of a video
-      operationId: setProgress
+      deprecated: true
+      description: This endpoint has been deprecated. Use `/videos/{id}/views` instead
       tags:
         - Video
       security:
       tags:
         - Video
       security:
@@ -1880,12 +1937,97 @@ paths:
         content:
           application/json:
             schema:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/UserWatchingVideo'
+              $ref: '#/components/schemas/UserViewingVideo'
         required: true
       responses:
         '204':
           description: successful operation
 
         required: true
       responses:
         '204':
           description: successful operation
 
+  '/videos/{id}/stats/overall':
+    get:
+      summary: Get overall stats of a video
+      tags:
+        - Video Stats
+      security:
+        - OAuth2: []
+      parameters:
+        - $ref: '#/components/parameters/idOrUUID'
+        - name: startDate
+          in: query
+          description: Filter stats by start date
+          schema:
+            type: string
+            format: date-time
+        - name: endDate
+          in: query
+          description: Filter stats by end date
+          schema:
+            type: string
+            format: date-time
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/VideoStatsOverall'
+
+  '/videos/{id}/stats/retention':
+    get:
+      summary: Get retention stats of a video
+      tags:
+        - Video Stats
+      security:
+        - OAuth2: []
+      parameters:
+        - $ref: '#/components/parameters/idOrUUID'
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/VideoStatsRetention'
+
+  '/videos/{id}/stats/timeseries/{metric}':
+    get:
+      summary: Get timeserie stats of a video
+      tags:
+        - Video Stats
+      security:
+        - OAuth2: []
+      parameters:
+        - $ref: '#/components/parameters/idOrUUID'
+        -
+          name: metric
+          in: path
+          required: true
+          description: The metric to get
+          schema:
+            type: string
+            enum:
+              - 'viewers'
+              - 'aggregateWatchTime'
+        - name: startDate
+          in: query
+          description: Filter stats by start date
+          schema:
+            type: string
+            format: date-time
+        - name: endDate
+          in: query
+          description: Filter stats by end date
+          schema:
+            type: string
+            format: date-time
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/VideoStatsTimeserie'
+
   /videos/upload:
     post:
       summary: Upload a video
   /videos/upload:
     post:
       summary: Upload a video
@@ -2032,7 +2174,7 @@ paths:
           in: query
           required: true
           description: |
           in: query
           required: true
           description: |
-            Created session id to proceed with. If you didn't send chunks in the last 12 hours, it is
+            Created session id to proceed with. If you didn't send chunks in the last hour, it is
             not valid anymore and you need to initialize a new upload.
           schema:
             type: string
             not valid anymore and you need to initialize a new upload.
           schema:
             type: string
@@ -2056,9 +2198,6 @@ paths:
           description: |
             Size of the chunk that the request is sending.
 
           description: |
             Size of the chunk that the request is sending.
 
-            The chunk size __must be a multiple of 256 KB__, and unlike [Google Resumable](https://developers.google.com/youtube/v3/guides/using_resumable_upload_protocol)
-            doesn't mandate for chunks to have the same size throughout the upload sequence.
-
             Remember that larger chunks are more efficient. PeerTube's web client uses chunks varying from
             1048576 bytes (~1MB) and increases or reduces size depending on connection health.
       requestBody:
             Remember that larger chunks are more efficient. PeerTube's web client uses chunks varying from
             1048576 bytes (~1MB) and increases or reduces size depending on connection health.
       requestBody:
@@ -2149,7 +2288,7 @@ paths:
       security:
         - OAuth2: []
       tags:
       security:
         - OAuth2: []
       tags:
-        - Video
+        - Video Imports
         - Video Upload
       requestBody:
         content:
         - Video Upload
       requestBody:
         content:
@@ -2177,6 +2316,34 @@ paths:
         '409':
           description: HTTP or Torrent/magnetURI import not enabled
 
         '409':
           description: HTTP or Torrent/magnetURI import not enabled
 
+  /videos/imports/{id}/cancel:
+    post:
+      summary: Cancel video import
+      description: Cancel a pending video import
+      security:
+        - OAuth2: []
+      tags:
+        - Video Imports
+      parameters:
+        - $ref: '#/components/parameters/id'
+      responses:
+        '204':
+          description: successful operation
+
+  /videos/imports/{id}:
+    delete:
+      summary: Delete video import
+      description: Delete ended video import
+      security:
+        - OAuth2: []
+      tags:
+        - Video Imports
+      parameters:
+        - $ref: '#/components/parameters/id'
+      responses:
+        '204':
+          description: successful operation
+
   /videos/live:
     post:
       summary: Create a live
   /videos/live:
     post:
       summary: Create a live
@@ -2221,6 +2388,9 @@ paths:
                 permanentLive:
                   description: User can stream multiple times in a permanent live
                   type: boolean
                 permanentLive:
                   description: User can stream multiple times in a permanent live
                   type: boolean
+                latencyMode:
+                  description: User can select live latency mode if enabled by the instance
+                  $ref: '#/components/schemas/LiveVideoLatencyMode'
                 thumbnailfile:
                   description: Live video/replay thumbnail file
                   type: string
                 thumbnailfile:
                   description: Live video/replay thumbnail file
                   type: string
@@ -2316,6 +2486,48 @@ paths:
           description: bad parameters or trying to update a live that has already started
         '403':
           description: trying to save replay of the live but saving replay is not enabled on the instance
           description: bad parameters or trying to update a live that has already started
         '403':
           description: trying to save replay of the live but saving replay is not enabled on the instance
+  /videos/live/{id}/sessions:
+    get:
+      summary: List live sessions
+      description: List all sessions created in a particular live
+      security:
+        - OAuth2: []
+      tags:
+        - Live Videos
+      parameters:
+        - $ref: '#/components/parameters/idOrUUID'
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  total:
+                    type: integer
+                    example: 1
+                  data:
+                    type: array
+                    items:
+                      $ref: '#/components/schemas/LiveVideoSessionResponse'
+  /videos/{id}/live-session:
+    get:
+      summary: Get live session of a replay
+      description: If the video is a replay of a live, you can find the associated live session using this endpoint
+      security:
+        - OAuth2: []
+      tags:
+        - Live Videos
+      parameters:
+        - $ref: '#/components/parameters/idOrUUID'
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/LiveVideoSessionResponse'
 
   /users/me/abuses:
     get:
 
   /users/me/abuses:
     get:
@@ -2806,7 +3018,7 @@ paths:
                     type: object
                     properties:
                       id:
                     type: object
                     properties:
                       id:
-                        $ref: '#/components/schemas/VideoChannel/properties/id'
+                        $ref: '#/components/schemas/id'
       requestBody:
         content:
           application/json:
       requestBody:
         content:
           application/json:
@@ -2938,8 +3150,10 @@ paths:
               schema:
                 type: object
                 properties:
               schema:
                 type: object
                 properties:
-                  avatar:
-                    $ref: '#/components/schemas/ActorImage'
+                  avatars:
+                    type: array
+                    items:
+                      $ref: '#/components/schemas/ActorImage'
         '413':
           description: image file too large
           headers:
         '413':
           description: image file too large
           headers:
@@ -2992,8 +3206,10 @@ paths:
               schema:
                 type: object
                 properties:
               schema:
                 type: object
                 properties:
-                  banner:
-                    $ref: '#/components/schemas/ActorImage'
+                  banners:
+                    type: array
+                    items:
+                      $ref: '#/components/schemas/ActorImage'
         '413':
           description: image file too large
           headers:
         '413':
           description: image file too large
           headers:
@@ -4631,23 +4847,31 @@ components:
       name: sort
       in: query
       required: false
       name: sort
       in: query
       required: false
-      description: Sort videos by criteria
       schema:
         type: string
         enum:
       schema:
         type: string
         enum:
-        - name
-        - -duration
-        - -createdAt
-        - -publishedAt
-        - -views
-        - -likes
-        - -trending
-        - -hot
+          - name
+          - -duration
+          - -createdAt
+          - -publishedAt
+          - -views
+          - -likes
+          - -trending
+          - -hot
+          - -best
+        description: >
+          Sort videos by criteria (prefixing with `-` means `DESC` order):
+            * `hot` - Adaptation of Reddit "hot" algorithm taking into account video views, likes, dislikes and comments and publication date
+            * `best` - Same than `hot`, but also takes into account user video history
+            * `trending` - Sort videos by recent views ("recent" is defined by the admin)
+            * `views` - Sort videos using their `views` counter
+            * `publishedAt` - Sort by video publication date (when it became publicly available)
     videosSearchSort:
       name: sort
       in: query
       required: false
     videosSearchSort:
       name: sort
       in: query
       required: false
-      description: Sort videos by criteria
+      description: >
+        Sort videos by criteria (prefixing with `-` means `DESC` order):
       schema:
         type: string
         enum:
       schema:
         type: string
         enum:
@@ -4750,7 +4974,7 @@ components:
       name: id
       in: path
       required: true
       name: id
       in: path
       required: true
-      description: The user id
+      description: Entity id
       schema:
         $ref: '#/components/schemas/id'
     idOrUUID:
       schema:
         $ref: '#/components/schemas/id'
     idOrUUID:
@@ -5213,6 +5437,14 @@ components:
       description: 'Admin flags for the user (None = `0`, Bypass video blocklist = `1`)'
       example: 1
 
       description: 'Admin flags for the user (None = `0`, Bypass video blocklist = `1`)'
       example: 1
 
+    LiveVideoLatencyMode:
+      type: integer
+      enum:
+        - 1
+        - 2
+        - 3
+      description: 'The live latency mode (Default = `1`, HIght latency = `2`, Small Latency = `3`)'
+
     VideoStateConstant:
       properties:
         id:
     VideoStateConstant:
       properties:
         id:
@@ -5221,7 +5453,23 @@ components:
             - 1
             - 2
             - 3
             - 1
             - 2
             - 3
-          description: 'The video state (Published = `1`, to transcode = `2`, to import = `3`)'
+            - 4
+            - 5
+            - 6
+            - 7
+            - 8
+            - 9
+          description: |
+            The video state:
+            - `1`: Published
+            - `2`: To transcode
+            - `3`: To import
+            - `4`: Waiting for live stream
+            - `5`: Live ended
+            - `6`: To move to an external storage (object storage...)
+            - `7`: Transcoding failed
+            - `8`: Moving to an external storage failed
+            - `9`: To edit using studio edition feature
         label:
           type: string
 
         label:
           type: string
 
@@ -5292,10 +5540,10 @@ components:
         host:
           type: string
           format: hostname
         host:
           type: string
           format: hostname
-        avatar:
-          nullable: true
-          allOf:
-            $ref: '#/components/schemas/ActorImage'
+        avatars:
+          type: array
+          items:
+            $ref: '#/components/schemas/ActorImage'
     VideoChannelSummary:
       properties:
         id:
     VideoChannelSummary:
       properties:
         id:
@@ -5310,10 +5558,10 @@ components:
         host:
           type: string
           format: hostname
         host:
           type: string
           format: hostname
-        avatar:
-          nullable: true
-          allOf:
-            $ref: '#/components/schemas/ActorImage'
+        avatars:
+          type: array
+          items:
+            $ref: '#/components/schemas/ActorImage'
     PlaylistElement:
       properties:
         position:
     PlaylistElement:
       properties:
         position:
@@ -5897,6 +6145,8 @@ components:
       properties:
         path:
           type: string
       properties:
         path:
           type: string
+        width:
+          type: integer
         createdAt:
           type: string
           format: date-time
         createdAt:
           type: string
           format: date-time
@@ -5914,12 +6164,10 @@ components:
         host:
           type: string
           format: hostname
         host:
           type: string
           format: hostname
-        avatar:
-          nullable: true
-          type: object
-          properties:
-            path:
-              type: string
+        avatars:
+          type: array
+          items:
+            $ref: '#/components/schemas/ActorImage'
     Actor:
       properties:
         id:
     Actor:
       properties:
         id:
@@ -5952,8 +6200,6 @@ components:
         updatedAt:
           type: string
           format: date-time
         updatedAt:
           type: string
           format: date-time
-        avatar:
-          $ref: '#/components/schemas/ActorImage'
     Account:
       allOf:
         - $ref: '#/components/schemas/Actor'
     Account:
       allOf:
         - $ref: '#/components/schemas/Actor'
@@ -5970,13 +6216,68 @@ components:
             description:
               type: string
               description: text or bio displayed on the account's profile
             description:
               type: string
               description: text or bio displayed on the account's profile
-    UserWatchingVideo:
+    UserViewingVideo:
+      required:
+        - currentTime
       properties:
         currentTime:
           type: integer
           format: seconds
           description: timestamp within the video, in seconds
           example: 5
       properties:
         currentTime:
           type: integer
           format: seconds
           description: timestamp within the video, in seconds
           example: 5
+        viewEvent:
+          type: string
+          enum:
+            - seek
+          description: >
+            Event since last viewing call:
+             * `seek` - If the user seeked the video
+
+    VideoStatsOverall:
+      properties:
+        averageWatchTime:
+          type: number
+        totalWatchTime:
+          type: number
+        viewersPeak:
+          type: number
+        viewersPeakDate:
+          type: string
+          format: date-time
+        countries:
+          type: array
+          items:
+            type: object
+            properties:
+              isoCode:
+                type: string
+              viewers:
+                type: number
+
+    VideoStatsRetention:
+      properties:
+        data:
+          type: array
+          items:
+            type: object
+            properties:
+              second:
+                type: number
+              retentionPercent:
+                type: number
+
+    VideoStatsTimeserie:
+      properties:
+        data:
+          type: array
+          items:
+            type: object
+            properties:
+              date:
+                type: string
+              value:
+                type: number
+
     ServerConfig:
       properties:
         instance:
     ServerConfig:
       properties:
         instance:
@@ -6862,7 +7163,7 @@ components:
             name:
               $ref: '#/components/schemas/usernameChannel'
             displayName:
             name:
               $ref: '#/components/schemas/usernameChannel'
             displayName:
-              $ref: '#/components/schemas/VideoChannel/properties/displayName'
+              type: string
       required:
         - username
         - password
       required:
         - username
         - password
@@ -6924,46 +7225,47 @@ components:
         - refresh_token
 
     VideoChannel:
         - refresh_token
 
     VideoChannel:
-      properties:
-        # GET/POST/PUT properties
-        displayName:
-          type: string
-          description: editable name of the channel, displayed in its representations
-          example: Videos of Framasoft
-          minLength: 1
-          maxLength: 120
-        description:
-          type: string
-          example: Videos made with <3 by Framasoft
-          minLength: 3
-          maxLength: 1000
-        support:
-          type: string
-          description: text shown by default on all videos of this channel, to tell the audience how to support it
-          example: Please support our work on https://soutenir.framasoft.org/en/ <3
-          minLength: 3
-          maxLength: 1000
-        # GET-only properties
-        id:
-          readOnly: true
-          allOf:
-            - $ref: '#/components/schemas/id'
-        isLocal:
-          readOnly: true
-          type: boolean
-        updatedAt:
-          readOnly: true
-          type: string
-          format: date-time
-        ownerAccount:
-          readOnly: true
-          nullable: true
-          type: object
+      allOf:
+        - $ref: '#/components/schemas/Actor'
+        - type: object
           properties:
           properties:
-            id:
-              type: integer
-            uuid:
-              $ref: '#/components/schemas/UUIDv4'
+            displayName:
+              type: string
+              description: editable name of the channel, displayed in its representations
+              example: Videos of Framasoft
+              minLength: 1
+              maxLength: 120
+            description:
+              type: string
+              example: Videos made with <3 by Framasoft
+              minLength: 3
+              maxLength: 1000
+            support:
+              type: string
+              description: text shown by default on all videos of this channel, to tell the audience how to support it
+              example: Please support our work on https://soutenir.framasoft.org/en/ <3
+              minLength: 3
+              maxLength: 1000
+            isLocal:
+              readOnly: true
+              type: boolean
+            updatedAt:
+              readOnly: true
+              type: string
+              format: date-time
+            banners:
+              type: array
+              items:
+                $ref: '#/components/schemas/ActorImage'
+            ownerAccount:
+              readOnly: true
+              nullable: true
+              type: object
+              properties:
+                id:
+                  type: integer
+                uuid:
+                  $ref: '#/components/schemas/UUIDv4'
     VideoChannelCreate:
       allOf:
         - $ref: '#/components/schemas/VideoChannel'
     VideoChannelCreate:
       allOf:
         - $ref: '#/components/schemas/VideoChannel'
@@ -7405,23 +7707,69 @@ components:
         permanentLive:
           description: User can stream multiple times in a permanent live
           type: boolean
         permanentLive:
           description: User can stream multiple times in a permanent live
           type: boolean
+        latencyMode:
+          description: User can select live latency mode if enabled by the instance
+          $ref: '#/components/schemas/LiveVideoLatencyMode'
 
     LiveVideoResponse:
       properties:
         rtmpUrl:
           type: string
 
     LiveVideoResponse:
       properties:
         rtmpUrl:
           type: string
+          description: Included in the response if an appropriate token is provided
         rtmpsUrl:
           type: string
         rtmpsUrl:
           type: string
+          description: Included in the response if an appropriate token is provided
         streamKey:
           type: string
         streamKey:
           type: string
-          description: RTMP stream key to use to stream into this live video
+          description: RTMP stream key to use to stream into this live video. Included in the response if an appropriate token is provided
         saveReplay:
           type: boolean
         permanentLive:
           description: User can stream multiple times in a permanent live
           type: boolean
         saveReplay:
           type: boolean
         permanentLive:
           description: User can stream multiple times in a permanent live
           type: boolean
+        latencyMode:
+          description: User can select live latency mode if enabled by the instance
+          $ref: '#/components/schemas/LiveVideoLatencyMode'
 
 
-
+    LiveVideoSessionResponse:
+        properties:
+          id:
+            type: integer
+          startDate:
+            type: string
+            format: date-time
+            description: Start date of the live session
+          endDate:
+            type: string
+            format: date-time
+            nullable: true
+            description: End date of the live session
+          error:
+            type: integer
+            enum:
+              - 1
+              - 2
+              - 3
+              - 4
+              - 5
+            nullable: true
+            description: >
+              Error type if an error occured during the live session:
+                - `1`: Bad socket health (transcoding is too slow)
+                - `2`: Max duration exceeded
+                - `3`: Quota exceeded
+                - `4`: Quota FFmpeg error
+                - `5`: Video has been blacklisted during the live
+          replayVideo:
+            type: object
+            description: Video replay information
+            properties:
+              id:
+                type: number
+              uuid:
+                $ref: '#/components/schemas/UUIDv4'
+              shortUUID:
+                $ref: '#/components/schemas/shortUUID'
 
   callbacks:
     searchIndex:
 
   callbacks:
     searchIndex: