> ## Documentation Index > Fetch the complete documentation index at: https://developers.liara.ir/llms.txt > Use this file to discover all available pages before exploring further. # Change the app's plan > Moves the app to another plan. If the app has been deployed, the new plan must have enough storage for the app's disks, and your balance must be high enough for the new plan. Team permission: `manage`. ## OpenAPI ````yaml /spec/paas.yaml post /v1/projects/{project_id}/resize openapi: 3.0.1 info: title: Apps & Deployments version: 1.0.0 description: > Create apps, deploy them, change their plans and settings, and read their logs, metrics and events. ## Identifying an app Most endpoints identify an app by its **name** (`project_id`, for example `my-app`). Some use its **ID** instead (`projectID`, the 24-character `_id` returned when you create or list apps). Each endpoint says which one it expects. ## Deploying 1. Upload your source code as a `.tar.gz` or `.zip` archive with `POST /v2/projects/{project_id}/sources`. You get a `sourceID`. 2. Create a release with `POST /v2/projects/{project_id}/releases`, passing the `sourceID`. For `docker` apps you can pass a ready-made `image` instead. 3. Follow the build with `GET /v2/releases/{releaseID}/build-logs` and check the release `state` with `GET /v1/releases/{releaseID}` until it's `READY` (or `FAILED`, `CANCELED`, `TIMEDOUT` or `UNHEALTHY`). ## Interactive shell (WebSocket) Open a shell in a running app over WebSocket: ```text wss://api.liara.ir/v1/exec?token=&project_id=&cmd= ``` - `token`: your API token. - `project_id`: the app's name. - `cmd`: the command to run, for example `/bin/bash`. URL-encode it. - `teamID` (optional): the team that owns the app. You need the `operate` or `manage` permission on the app. Everything you send is passed to the command's input, and its output is sent back to you. If the app has never been deployed successfully, you get the message `Service does not exist yet. You should have at least one successful release.` and the connection closes. The handshake fails with `401` for a missing or invalid token, `400` if `project_id` or `cmd` is missing or `teamID` is invalid, `403` without access to the team or app, and `404` if the app doesn't exist. ## Team permissions With `teamID`, each endpoint needs one of the project permissions it lists (`view`, `deploy`, `operate` or `manage`). A permission from your role or a resource permission on that app both count. servers: - url: https://api.liara.ir security: - bearerAuth: [] tags: - name: Apps description: Create, list, inspect and delete apps. - name: Configuration description: Environment variables, port, DNS servers, plans and scaling. - name: Settings description: >- Read-only filesystem, default subdomain, zero-downtime deployment and fixed outbound IP. - name: Deployments description: Upload source code, create releases, follow builds and roll back. - name: Logs, Metrics & Events description: Runtime logs, resource usage and lifecycle events. - name: Networks description: Private networks that apps and databases are created in. paths: /v1/projects/{project_id}/resize: post: tags: - Configuration summary: Change the app's plan description: >- Moves the app to another plan. If the app has been deployed, the new plan must have enough storage for the app's disks, and your balance must be high enough for the new plan. Team permission: `manage`. operationId: changeAppPlan parameters: - $ref: '#/components/parameters/TeamID' - $ref: '#/components/parameters/AppName' requestBody: required: true content: application/json: schema: type: object required: - planID properties: planID: $ref: '#/components/schemas/AppPlanID' example: planID: medium-g2 responses: '200': description: The plan was changed. The response body is empty. '400': description: >- The body or `teamID` is invalid, or the plan can't be used for this app (`g2_plan_unavailable`). content: application/json: schema: $ref: '#/components/schemas/Error' '401': $ref: '#/components/responses/Unauthorized' '402': $ref: '#/components/responses/NotEnoughBalance' '403': $ref: '#/components/responses/TeamForbidden' '404': description: The app doesn't exist or is frozen. content: application/json: schema: $ref: '#/components/schemas/Error' example: statusCode: 404 error: Not Found message: Project not found. data: null '409': description: The new plan doesn't have enough storage for the app's disks. content: application/json: schema: $ref: '#/components/schemas/Error' example: statusCode: 409 error: Conflict message: >- The new plan does not have sufficient storage space for your disks. data: null components: parameters: TeamID: name: teamID in: query required: false description: >- Run the request in the context of a team you belong to, instead of your personal account. schema: $ref: '#/components/schemas/ObjectID' example: '000000000000000000000002' AppName: name: project_id in: path required: true description: The app's name. schema: type: string example: my-app schemas: AppPlanID: type: string description: >- The app's resource plan. See Liara's pricing page for what each plan includes. enum: - small-g2 - medium-g2 - standard-base-g2 - standard-plus-g2 - pro-g2 - pro-plus-g2 - pro-max-g2 Error: type: object description: Standard error body. properties: statusCode: type: integer error: type: string description: HTTP status text. message: type: string description: What went wrong. data: type: object nullable: true description: >- Extra details. When present, `code` is a stable, machine-readable error code. properties: code: type: string ObjectID: type: string pattern: ^[0-9a-fA-F]{24}$ description: 24-character hexadecimal ID. AuthError: type: object description: Error body returned when the API token is rejected. properties: error: type: string responses: Unauthorized: description: The API token is missing, invalid or expired. content: application/json: schema: $ref: '#/components/schemas/AuthError' example: error: Unauthorized. NotEnoughBalance: description: Your balance is too low. content: application/json: schema: $ref: '#/components/schemas/Error' example: statusCode: 402 error: Payment Required message: Not enough balance. data: null TeamForbidden: description: >- With `teamID`: you aren't a member of the team (`team_not_found`), or you don't have the required permission on this app (`no_permission`). content: application/json: schema: $ref: '#/components/schemas/Error' examples: teamNotFound: summary: Not a team member value: statusCode: 403 error: Forbidden message: Team not found data: code: team_not_found noPermission: summary: Missing permission value: statusCode: 403 error: Forbidden message: You do not have permission to access this resource. data: code: no_permission securitySchemes: bearerAuth: type: http scheme: bearer description: 'Send your API token as `Authorization: Bearer `.' ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.