Permission System

How it works
Each feature available in the Apps Engine is mapped to a permission. Adding the permission in the app's manifest (app.json file) will unlock said feature to be used by the app. For example, if you add "send messages" as a permission in your app's manifest, your app will be able to send messages in the Rocket.Chat server. If your app tries to send a message without having the "send messages" permission listed in the manifest, the Apps Engine will block the feature and the app will not be able to perform the desired action.
When installing an app, be it by the Marketplace or installing it manually via zip file, a window asks the user to review the permissions the app requires to work properly. The user installing the app can either accept and install the app or deny the permissions and not install it.
How to use it
In your app's manifest file (app.json), add the field permissions. It receives a list containing all the permissions you are asking for. Example:
{
...
"permissions": [
    {
        "name": "user.read"
    },
    {
        "name": "user.write"
    },
    {
        "name": "upload.read"
    },
  ],
...
}
Notice about rule enforcement
As of right now, the Apps Engine does not enforce the use of the permissions to make your apps work, meaning your current apps (including the ones published at the Marketplace) will still work as expected. All the apps that do not have the permissions listed in their manifest will still have access to all the features they need through the default permissions. They are applied to your app automatically when no permissions property is found in the app's manifest.
Until no sunsetting period for the "permissionless engine" is defined, setting permissions in your app's manifest will be optional.
Permissions
Here is a list of permissions available:
Permission Name
Description
user.read
Access user information
user.write
Modify user information
upload.read
Access files uploaded to the server
upload.write
Upload files to the server
server-setting.read
Access settings in the server
server-setting.write
Modify settings in the server
room.read
Access room information
room.write
Create and modify rooms
message.read
Access messages
message.write
Send and modify messages
livechat-status.read
Access Livechat status information
livechat-custom-fields.write
Modify Livechat custom field configuration
livechat-visitor.read
Access Livechat visitor information
livechat-visitor.write
Modify Livechat visitor information
livechat-message.read
Access Livechat message information
livechat-message.write
Modify Livechat message information
livechat-room.read
Access Livechat room information
livechat-room.write
Modify Livechat room information
livechat-department.read
Access Livechat department information
livechat-department.write
Modify Livechat department information
slashcommand
Register new slash commands
apis
Register new HTTP endpoints
env.read
Access minimal information about the server environment
networking
Access to the server network
persistence
Store internal data in the database
scheduler
Register and maintain scheduled jobs
ui.interact
Interact with the UI (UIKit)

Event Interfaces

Next - Apps Engine

Adding Features

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How it works

How to use it

Notice about rule enforcement

Permissions