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jwt-worker

Cloudflare Worker to generate JSON Web Tokens. Useful for environments without performant crypto implementations (Roblox). Specifically adapted for Firestore at the moment.

Setup

  1. Configure wrangler.toml according to the Cloudflare Workers Docs
  2. Grab yourself a service account keyfile from GCP IAM
  3. Name the keyfile gcp-auth.json and put it in the root directory
  4. Run node ./generateConfig.js
  5. Run wrangler publish to deploy and create the worker on the Cloudflare site, it still won't be functional however
  6. Copy the private_key field from the keyfile into an encrypted Worker Environment Variable called GCP_KEY
  7. Generate a long random string to use as an authentication token, copy into an encrypted Worker Environment Variable called AUTH_TOKEN
  8. The Worker is up and running! Just make a simple GET request to get a fresh GCP JWT. Note: the request must contain a token header containing the authentication token set in step 7