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Run

clasp run [functionName] allows you to execute Apps Script functions remotely.

Prerequisites

To use clasp run, you need to complete 5 steps:

  • Set up the Project ID in your .clasp.json if missing.
  • Create an OAuth Client ID (Other). Download as creds.json.
  • clasp login --creds creds.json with this downloaded file.
  • Add the following to appsscript.json: 
    "executionApi": {
  "access": "ANYONE"
}
  • Deploy your project as an API Executable if necessary

Setup Instructions

  1. Ensure you have upgraded to the latest version
    • clasp -v
  2. Add a projectId to your .clasp.json. You can find your Project ID via:
    • Create a GCP project
    • Record the Project ID and Project number. (Example: my-sample-project-191923. and 314053285323)
    • Run the command with your Project ID: clasp setting projectId <PROJECT_ID>
  3. Set the projectId to your Apps Script project
    • Open https://console.developers.google.com/apis/credentials/consent?project=[PROJECT_ID]
    • Set Application name to clasp project and click save.
    • Run clasp open
    • In the menu, click ⚙️ Project Settings > Google Cloud Platform (GCP) Project
    • If the Project Number is missing,
      • Click Change Project, paste the PROJECT_NUMBER, and click Set project
  4. Use your own OAuth 2 client. Create one by following these instructions:
    • clasp open --creds
    • Press Create credentials > OAuth client ID
    • Application type: Desktop App
    • Create > OK
    • Download the file (⬇), move it to your directory, and name it creds.json. Please keep this file secret!
  5. Call clasp login --creds creds.json
  6. Add the following to appsscript.json: 
    "executionApi": {
  "access": "ANYONE"
}
  7. If you use Google Workspace, enable Apps Script API
    • Open https://console.cloud.google.com/marketplace/product/google/script.googleapis.com?project=[PROJECT_ID]
    • Press ENABLE button

Run a function

After setup, you can remotely execute Apps Script functions from clasp:

  • clasp push your files.
  • Type clasp run. You'll be prompted for which function you want to run. Select and press Enter.
  • The result is displayed in the output.
  • You can also run functions directly. i.e. clasp run helloWorld.

If you get an "Script API executable not published/deployed." error, deploy your script as an API Executable:

  • Run clasp open
  • Click Deploy > New deployment
  • Select type ⚙ > API Executable
  • Type a Description
  • Click Deploy

Run a function that requires scopes

Many Apps Script functions require special OAuth Scopes (Gmail, Drive, etc.).

To run functions that use these scopes, you must add the scopes to your Apps Script manifest and clasp login again.

  • clasp open
  • File > Project Properties > Scopes
  • Add these scopes to your appsscript.json.
  • Log in again: clasp login --creds creds.json. This will add these scopes to your credentials.
  • clasp run sendMail