Show HN: SQL-tap – Real-time SQL traffic viewer for PostgreSQL and MySQL

36•mickamy•2h ago

sql-tap is a transparent proxy that captures SQL queries by parsing the PostgreSQL/MySQL wire protocol and displays them in a terminal UI. You can run EXPLAIN on any captured query. No application code changes needed — just change the port.

Comments

nwellinghoff•1h ago

Nice. I like how you made it an easy to drop in proxy. Will definitely use this when debugging issues!

jauntywundrkind•46m ago

That's some sick observability, nice.

buremba•12m ago

This is very neat! IMO inspecting the queries the agents run on the database is a better approach to understand how the code works, even more than reviewing the code.

I just tried and it works smoothly. For those who doesn't want to plug in the agents to their database directly, I built a similar tool https://dbfor.dev for the exact purpose, it just embeds PGLite and implements PG wire protocol to spin up quick PG databases with a traffic viewer included.

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