Synthesizer log tester

This small service emits synthetic JSON logs to help test log pipelines and collectors.

Run the service

With Go installed:

go run .

The server listens on :4000.

Trigger the log tester

The log worker is triggered via a POST to / with a small JSON body specifying how long it should emit logs and at what rate.

• duration: Go duration string (e.g. "10s", "2m")
• rate: number of log entries per second

Example: run the log tester for 30 seconds at 5 logs/second:

curl -X POST http://localhost:4000/ \
  -H 'Content-Type: application/json' \
  -d '{"duration":"30s","rate":5}'

You should then see log entries like "some random fake data for log testing" printed to stdout until the duration has elapsed.

Test JSON responses

You can also hit the JSON endpoints directly:

• Fast response: GET /
• Slow response with artificial latency: GET /slow
• Always-500 endpoint: GET /500
• Request timeout endpoint: GET /timeout

Example:

curl http://localhost:4000/