Mosquitto vs pg-amqp-bridge: What are the differences?

What is Mosquitto? An open source message broker that implements the MQTT protocol. It is lightweight and is suitable for use on all devices from low power single board computers to full servers.. The MQTT protocol provides a lightweight method of carrying out messaging using a publish/subscribe model. This makes it suitable for Internet of Things messaging such as with low power sensors or mobile devices such as phones, embedded computers or microcontrollers.

What is pg-amqp-bridge? Send Messages from PostgreSQL to RabbitMQ. This tool enables a decoupled architecture, think sending emails when a user signs up. Instead of having explicit code in your signup function that does the work (and slows down your response), you just have to worry about inserting the row into the database.

Mosquitto and pg-amqp-bridge can be categorized as "Message Queue" tools.

pg-amqp-bridge is an open source tool with 251 GitHub stars and 14 GitHub forks. Here's a link to pg-amqp-bridge's open source repository on GitHub.