luke-hawk / opensheet

💾 An API to get a Google Sheet as JSON, no authentication required.

opensheet

A free, super simple, hosted API for getting Google Sheets as JSON.

Tutorial blog post: benborgers.com/posts/google-sheets-json

If you have questions: benborgers.com/contact

Documentation

This API returns a given Google Sheet’s rows as JSON data. In order to use it, the first column of your Google Sheet should be column headers. Here’s an example.

The format for this API is:

https://opensheet.elk.sh/spreadsheet_id/sheet_name

For example:

https://opensheet.elk.sh/1o5t26He2DzTweYeleXOGiDjlU4Jkx896f95VUHVgS8U/Test+Sheet

You can also replace sheet_name with the sheet number (in the order that the tabs are arranged), if you don’t know the name. For example, to get the first sheet:

https://opensheet.elk.sh/1o5t26He2DzTweYeleXOGiDjlU4Jkx896f95VUHVgS8U/1

Take note that the first sheet in order is numbered 1, not 0.

Caching

Responses are cached for 30 seconds in order to improve performance and to avoid hitting Google Sheets’ rate limits, so it might take up to 30 seconds for fresh edits to show up in the API response.

Recent hosting changes

I’ve moved the hosted instance from Vercel to Railway, and therefore the base URL has changed from opensheet.vercel.app to opensheet.elk.sh. opensheet.vercel.app will continue to redirect to the correct URL, but you should update your code to use opensheet.elk.sh to avoid the slight performance hit that comes from needing to redirect.

Self-hosting

This section is only necessary if you want to fork opensheet and host your own instance of it. If you don’t want to deal with that, you’re welcome to use my hosted instance at opensheet.elk.sh.

opensheet is written as a Node.js Express server, which can be hosted on any platform that enables deploying a Node.js server. It also uses a Redis server for caching, but will run fine without caching if Redis isn’t present.

You may just deploy this fork to heroku with:

If you host opensheet in your own Railway account or make a fork, you’ll need to get your own Google Sheets API credentials:

1. Go to the Google Cloud Console and create a new project from the top navigation bar.
2. Search for “Google Sheets API” and enable it.
3. On the left bar, go to Credentials and click “Create Credentials” → “Service account”. Service accounts are Google’s concept for a Google account that you can control programmatically.
4. Fill in any reasonable name, and skip the next two optional steps. Click “Done” to create the set of credentials, which will allow you to access Google Sheets using the API.
5. Click on this newly created service account, and then go to the “Keys” tab. Create a key of type JSON.
6. A JSON file containing the service account’s credentials will be downloaded. Open up that file, and copy its entire contents. You should paste this whole thing into the GOOGLE_SERVICE_ACCOUNT environment variable. Procedures for doing this vary based on deployment provider (Railway, Heroku, etc).

Local development

npm run dev

This uses railway run, and therefore assumes that you have the Railway CLI installed and have linked it to your project.

The benefit of using railway run in local development is that it injects environment variables (GOOGLE_SERVICE_ACCOUNT and REDIS_URL) without needing to have them locally.