Architecture

A Hook0 instance is composed of multiple parts. Let's explain what they are used for!

Hook0 API

Hook0 API is the central part of the system. It is a Rust web application.

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Hook0 API dependencies

• a PostgreSQL database

Hook0 UI

Hook0 UI is a Vue.js front-end web application.

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Hook0 UI dependencies

• Hook0 API

Hook0 Output Worker

Hook0 Output Worker is responsible of actually calling users' webhooks and gathering responses. It is a Rust application that does not need to accept incoming connections.

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Hook0 Output Worker dependencies

• the PostgreSQL database used by Hook0 API

There can be multiple instances of Hook0 Output Worker, work would be shared between each of them.