ipld-eth-beacon-indexer/application_component.md
2022-05-10 14:31:56 -04:00

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- [Overview](#overview)
- [Components](#components)
- [Boot](#boot)
<small><i><a href='http://ecotrust-canada.github.io/markdown-toc/'>Table of contents generated with markdown-toc</a></i></small>
# Overview
This document will go through various application components
# Components
## `internal/boot`
The boot package in `internal` is utilized to start the application. Everything in the boot process must complete successfully for the application to start. If it does not, the application will not start.
## `pkg/database`
The `database` package allows us to interact with a postgres DB. We utilize the interface to ensure we can interact with any `sql` database as well. I copied most of the code here from `vulcanize/go-ethereum`. Down the road, internal teams should be able to reference the package instead of copy pasting it and re-implementing it.
## `pkg/beaconclient`
This package will contain code to interact with the beacon client.
## `pkg/version`
A generic package which can be utilized to easily version our applications.
## `pkg/gracefulshutdown`
A generic package that can be used to shutdown various services within an application.
## `pkg/loghelper`
This package contains useful functions for logging.
## `internal/shutdown`
This package is used to shutdown the `ipld-ethcl-indexer`. It calls the `pkg/gracefulshutdown` package.