mqta

This is a small tool for visualizing what's flowing on an AMQP exchange (e.g RabbitMQ). It will output to stdout.

$ gem install mqta

You need to specify ENV vars with the credentials for accessing the AMQP exchange.

EXCHANGE=exchange-name HOST=host USER=user VHOST=vhost PASSWORD=password mqta"

where EXCHANGE is the name of the exchange you want to see on the screen.

This will block and show every message that the exchange receives, by creating a temporary queue bound to that exchange.

Alias per project: if you're on a particular project, define an alias:

alias mqta_my_project="HOST=host USER=user VHOST=vhost PASSWORD=password mqta"

Then call your alias with EXCHANGE=my-project mqta_my_project.

Format JSON Payloads: if the exchange gets JSON messages, you can format them with jq (e.g brew install jq on the MacOS).

EXCHANGE=my-project mqta_my_project | jq '.some-key | .[] | { key: .some-other-key }'

This will pipe every message into jq. This tool will allow you to select exactly what you need without having to explode your terminal with so much text.

First N chars: if you don't want to see all the data and don't care about JSON, you can limit the number of chars per line with EXCHANGE=my-project mqta_my_project | cut -c 1-160 (replace 160 with the number of chars you want).

It's basically a bin script at bin/mqta, so there's not much to see here for now. If the features set grows, I'll organize it in classes.