️ Update a Google Spreadsheet via GET requests with Google Apps Script

Programmatically update a Google Spreadsheet (you own) via HTTP GET requests.

1. Open a Google Spreadsheet
2. On the menu bar, click on "Tools" > "Script Editor"
3. Copy and paste the contents of index.gs
4. Save the file and project
5. On the menu bar, click on "Publish" > "Deploy as web app..."
6. Ensure "Execute the app as" and "Who has access to the app" are setup correctly. Choose Me and Anyone, even anonymous for the most permissive authorization.
7. Click the "Deploy" button

Let's pretend our web app URL is https://script.google.com/macros/s/.../exec

Scenario A: Update the b2 cell with the value food of the first sheet on my spreadsheet.

https://script.google.com/macros/s/.../exec?sheet=1&cell=b2&value=food

Scenario B: Update cells c1, c2 and c3 with the values 10, 20 and 50 (respectively) of the second sheet on my spreadsheet.

https://script.google.com/macros/s/.../exec?sheet=2&cell=c1&cell=c2&cell=c3&value=10&value=20&value=50

Type: number

The number of the sheet where the cells are being updated. Must be 1 or greater.

Type: string

The name(s) of the cell(s) being updated.

Type: string

The value(s) for the cell(s) being updated.

MIT © Alejandro Beltrán