> ## Documentation Index
> Fetch the complete documentation index at: https://developer.rocket.chat/llms.txt
> Use this file to discover all available pages before exploring further.

# Set Default Channel

> Set whether the channel is a default channel or not. All new users will automatically join this channel. Permission required: `edit-room`

### Changelog
| Version | Description |
| ------- | ----------- |
|0.66.0  | Added        |

## OpenAPI

````json POST /api/v1/channels.setDefault
{
  "openapi": "3.0.0",
  "info": {
    "version": "1.0.0",
    "title": "Rooms"
  },
  "servers": [
    {
      "url": "https://apiexplorer.support.rocket.chat"
    }
  ],
  "tags": [
    {
      "name": "Channels"
    },
    {
      "name": "Directory"
    },
    {
      "name": "Groups"
    },
    {
      "name": "Rooms"
    },
    {
      "name": "Teams"
    },
    {
      "name": "Room Invites"
    },
    {
      "name": "Subscriptions"
    },
    {
      "name": "ABAC"
    }
  ],
  "paths": {
    "/api/v1/channels.setDefault": {
      "post": {
        "tags": [
          "Channels"
        ],
        "summary": "Set Default Channel",
        "description": "Set whether the channel is a default channel or not. All new users will automatically join this channel. Permission required: `edit-room`\n\n### Changelog\n| Version | Description |\n| ------- | ----------- |\n|0.66.0  | Added        |",
        "operationId": "post-api-v1-channels.setDefault",
        "parameters": [
          {
            "$ref": "#/components/parameters/Auth-Token"
          },
          {
            "$ref": "#/components/parameters/UserId"
          }
        ],
        "requestBody": {
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "properties": {
                  "roomId": {
                    "type": "string",
                    "description": "The channel ID."
                  },
                  "default": {
                    "type": "boolean",
                    "description": "Boolean of whether the room is default or not."
                  }
                },
                "required": [
                  "roomId",
                  "default"
                ]
              },
              "examples": {
                "Example": {
                  "value": {
                    "roomId": "ByehQjC44FwMeiLbX",
                    "default": true
                  }
                }
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "OK",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "channel": {
                      "type": "object",
                      "properties": {
                        "_id": {
                          "type": "string"
                        },
                        "name": {
                          "type": "string"
                        },
                        "t": {
                          "type": "string"
                        },
                        "msgs": {
                          "type": "integer"
                        },
                        "u": {
                          "type": "object",
                          "properties": {
                            "_id": {
                              "type": "string"
                            },
                            "username": {
                              "type": "string"
                            }
                          }
                        },
                        "ts": {
                          "type": "string"
                        },
                        "ro": {
                          "type": "boolean"
                        },
                        "sysMes": {
                          "type": "boolean"
                        },
                        "_updatedAt": {
                          "type": "string"
                        },
                        "usernames": {
                          "type": "array",
                          "items": {
                            "type": "string"
                          }
                        },
                        "joinCodeRequired": {
                          "type": "boolean"
                        },
                        "muted": {
                          "type": "array",
                          "items": {
                            "type": "object"
                          }
                        },
                        "default": {
                          "type": "boolean"
                        }
                      }
                    },
                    "success": {
                      "type": "boolean"
                    }
                  }
                },
                "examples": {
                  "Example": {
                    "value": {
                      "channel": {
                        "_id": "ByehQjC44FwMeiLbX",
                        "name": "testing0",
                        "t": "c",
                        "msgs": 0,
                        "u": {
                          "_id": "aiPqNoGkjpNDiRx6d",
                          "username": "goose160"
                        },
                        "ts": "2017-01-05T18:02:50.754Z",
                        "ro": true,
                        "sysMes": true,
                        "_updatedAt": "2017-01-05T19:02:24.429Z",
                        "usernames": [
                          "goose160",
                          "graywolf336"
                        ],
                        "joinCodeRequired": true,
                        "muted": [],
                        "default": true
                      },
                      "success": true
                    }
                  }
                }
              }
            }
          },
          "401": {
            "$ref": "#/components/responses/authorizationError"
          }
        }
      }
    }
  },
  "components": {
    "parameters": {
      "Auth-Token": {
        "name": "X-Auth-Token",
        "in": "header",
        "description": "The `authToken` of the authenticated user.",
        "required": true,
        "schema": {
          "type": "string"
        },
        "example": "RScctEHSmLGZGywfIhWyRpyofhKOiMoUIpimhvheU3f"
      },
      "UserId": {
        "name": "X-User-Id",
        "in": "header",
        "description": "The `userId` of the authenticated user.",
        "required": true,
        "schema": {
          "type": "string"
        },
        "example": "rbAXPnMktTFbNpwtJ"
      }
    },
    "responses": {
      "authorizationError": {
        "description": "Unauthorized",
        "content": {
          "application/json": {
            "schema": {
              "type": "object",
              "properties": {
                "status": {
                  "type": "string"
                },
                "message": {
                  "type": "string"
                }
              }
            },
            "examples": {
              "Authorization Error": {
                "value": {
                  "status": "error",
                  "message": "You must be logged in to do this."
                }
              }
            }
          }
        }
      }
    }
  }
}
````