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cloudflare-worker

README.md

Logfire Cloudflare Worker Integration Example

This example is based on the scaffolding created from npm create cloudflare@latest, and uses the otel-cf-workers package to instrument a Cloudflare Worker and send traces and metrics to Logfire.

Run the project

To run the example locally, you need a Logfire account and a project and a local installation of Node 20. If you don't have a Logfire account, create a free one in Logfire.

Clone the repository:

git clone https://github.com/pydantic/logfire.git

cd into the example directory and install:

cd examples/javascript/cloudflare-worker
npm install

Edit the wrangler.toml file and add your write token and (optionally) the base URL of the Logfire API:

[vars]
LOGFIRE_WRITE_TOKEN="your-write-token"
LOGFIRE_BASE_URL="https://logfire-api.pydantic.dev/"

Then, run the worker locally:

npm run dev

If everything is set up correctly, when you visit http://localhost:8787/ in your browser, you should see records reported in Logfire.