pg-trace

Example application to test prospective pg instrumentation for beeline-nodejs

Minimum example to accompany beeline-nodejs PR#155.

How to test

Note, requires nvm, yarn/npm and postgres running locally

Configure beeline-nodejs

Should be able to switch out any call to yarn with npm if required.

1. Clone beeline-nodejs and checkout instrument-pg branch
2. Run yarn install in the beeline-nodejs folder
3. Run yarn link within the beeline-nodejs folder

Using the test project to test the pg instrumentation

1. Navigate to the pg-trace-example folder
2. Run ./bin/setup.sh
3. Update the HONEYCOMB_ENABLED, HONEYCOMB_WRITE_KEY and HONEYCOMB_DATASET values in .env to configure honeycomb
4. Update the DB_* values in .env to match your local postgres server's config.
5. Run yarn link beeline-nodejs to link with local modified version of beeline-nodejs.
6. Run DEBUG=honeycomb-beeline:* yarn start to start service locally
7. Run curl localhost:8080/example in a new terminal to trigger the test

The postgres query is being made from src/exampleRouter.ts. You should be able to tweak the query to see failure states and what gets sent with them, as opposed to when you have a successful query.