# Designate channel as main

Sets the specified channel as the main channel for the group. Requires group administrator privileges. Only one channel can be designated as main per group. The main channel serves as the primary communication channel and is prominently displayed in group interfaces. Any existing main channel designation is automatically removed.

RBAC: requires GroupChannels.Manage

Endpoint: PUT /api/v1/groups/{groupId}/channels/{channelId}/main
Version: 1.0
Security: 

## Path parameters:

  - `channelId` (string, required)
    UUID with type prefix
    Example: "us_01hxcvk1hjexere4pvtrj0ymqq"

  - `groupId` (string, required)
    The unique identifier of the group
    Example: "us_01hxcvk1hjexere4pvtrj0ymqq"

## Query parameters:

  - `htmlContent` (any)
    Returns text as html if true or original text if false. Applicable only to local posts and users. Default is true.

## Response 200 fields (application/json):

  - `groupUserName` (string,null)
    Name of the channel inside a group

  - `id` (string, required)
    internal id of this user
    Example: "us_01hxcvk1hjexere4pvtrj0ymqq"

  - `username` (string, required)
    unique user name
    Example: "john_smith"

  - `domain` (string, required)
    user's domain, remote only, empty for local
    Example: "wlsly1.net"

  - `displayName` (string, required)
    full name of the user
    Example: "John Smith"

  - `summary` (string, required)
    User's summary or bio
    Example: "Pixels are my paint, code is my canvas, creativity is my brush."

  - `uri` (string, required)
    URI of this user
    Example: "https://wlsly1.net/users/john_smith"

  - `stats` (object, required)
    User stats

  - `stats.posts` (integer, required)
    number of posts

  - `stats.followers` (integer, required)
    number of followers

  - `stats.following` (integer, required)
    number of following

  - `stats.followingHidden` (boolean, required)
    privacy setting to hide followings

  - `stats.totalStorageBytes` (integer, required)
    total storage volume in bytes

  - `stats.comments` (integer, required)
    number of comments

  - `fields` (object, required)
    User fields

  - `avatar` (object,null)
    User's avatar

  - `avatar.uploadId` (string, required)
    Internal id
    Example: "us_01hxcvk1hjexere4pvtrj0ymqq"

  - `avatar.userId` (string, required)
    User id this upload belongs to
    Example: "us_01hxcvk1hjexere4pvtrj0ymqq"

  - `avatar.uploadType` (string, required)
    Type of the upload
    Enum: "VIDEO", "IMAGE", "AUDIO", "DOCUMENT", "OTHER"

  - `avatar.meta` (object, required)
    Meta data

  - `avatar.meta.blurhash` (string,null)

  - `avatar.meta.name` (string,null)

  - `avatar.meta.altText` (string,null)

  - `avatar.size` (integer, required)
    Size in bytes of all the files in this upload

  - `avatar.files` (array, required)
    List of all the files this upload has

  - `avatar.files.uri` (string,null, required)
    Full url of the file

  - `avatar.files.fileId` (string, required)
    File id
    Example: "us_01hxcvk1hjexere4pvtrj0ymqq"

  - `avatar.files.extension` (string, required)
    File extension
    Example: "mp4"

  - `avatar.files.original` (boolean, required)
    true if this file is original, false if it is a derivative

  - `avatar.files.meta` (object, required)
    File metadata. Contains optional values for width, height etc.

  - `avatar.files.meta.duration` (number,null)
    Video duration in seconds

  - `avatar.files.meta.width` (integer,null)
    Media width

  - `avatar.files.meta.height` (integer,null)
    Media height

  - `avatar.files.meta.codec` (string,null)
    Video codec

  - `avatar.files.meta.rotate` (integer,null)
    Rotation in degrees

  - `avatar.files.size` (integer, required)
    File size in bytes

  - `avatar.files.createdAt` (string, required)
    Example: "2022-03-10T16:15:50Z"

  - `avatar.files.updatedAt` (string, required)
    Example: "2022-03-10T16:15:50Z"

  - `avatar.files.type` (string, required)
    File type
    Enum: "VIDEO", "IMAGE", "AUDIO", "DOCUMENT", "OTHER"

  - `avatar.tags` (array, required)
    List of tags attached to upload
    Enum: "Post", "Avatar", "Header", "Album", "Emoji", "Event"

  - `avatar.error` (string,null)
    Upload processing error

  - `avatar.cached` (boolean)
    true if cached

  - `avatar.logs` (string,null)
    Logs

  - `avatar.remote` (boolean)
    true if this upload is remote

  - `header` (object,null)
    User's header

  - `deleted` (boolean,null)

  - `state` (string, required)
    User's moderation state
    Enum: "REGULAR", "SENSITIVE", "LIMITED", "SUSPENDED"

  - `relationship` (object,null)
    Relationship with this user

  - `relationship.following` (string,null)
    Does the viewer follow the target?
    Enum: "PENDING", "ACCEPTED", "REJECTED"

  - `relationship.followed` (string,null)
    Does the target follow the viewer?
    Enum: "PENDING", "ACCEPTED", "REJECTED"

  - `relationship.blocked` (boolean,null)
    Viewer blocked the target

  - `relationship.blockedBy` (boolean,null)
    Target blocked the viewer

  - `relationship.muted` (object,null)
    Viewer mutes the target

  - `relationship.muted.state` (boolean)

  - `relationship.muted.expiresAt` (string,null)
    Example: "2022-03-10T16:15:50Z"

  - `relationship.note` (string,null)
    Viewer's private note about the target

  - `emojis` (array,null)

  - `emojis.shortcode` (string, required)

  - `emojis.category` (string,null)

  - `emojis.url` (string, required)

  - `emojis.staticUrl` (string, required)

  - `emojis.visibleInPicker` (boolean)

  - `location` (object,null)
    User's location, geo and name

  - `location.geo` (object,null)
    Coordinates and other geo data

  - `location.geo.latitude` (number)

  - `location.geo.longitude` (number)

  - `location.geo.altitude` (number,null)

  - `location.geo.accuracy` (number,null)

  - `location.geo.verticalAccuracy` (number,null)

  - `location.geo.speed` (number,null)

  - `location.geo.bearing` (number,null)

  - `location.geo.timestamp` (integer,null)

  - `location.autoUpdate` (boolean)

  - `location.show` (boolean)

  - `timezone` (object,null)
    User's timezone

  - `timezone.ianaTimezone` (string,null)

  - `birthday` (object,null)
    User's birthday

  - `birthday.date` (string,null)
    Example: "2022-03-10T16:15:50Z"

  - `software` (string, required)
    Software platform type (wellesley, mastodon, threads.net)
    Example: "wellesley"

  - `channel` (boolean)
    is channel user

  - `groupId` (string,null)
    UUID with type prefix
    Example: "us_01hxcvk1hjexere4pvtrj0ymqq"

  - `groupPrivacy` (string,null)
    * PUBLIC - Channel is visible to everyone and can be followed by anyone.
      * PRIVATE - Channel is visible only to group members and can only be followed by group members.
    Enum: "PUBLIC", "PRIVATE"

  - `groupMain` (boolean,null)

  - `groupDefault` (boolean,null)

  - `actorType` (string,null)
    Whether this user is a person, application or a service
    Enum: "Application", "Group", "Organization", "Person", "Service"