How to abstract the database connection in Golang?

The abstraction of the connection to the database and the injection of dependencies organizes the code and brings many benefits.

Where is the database injected?

• In routes: The connection is injected into the controllers during initialization.
• In repositories: Receive the connection to perform operations on the database.
• No services: Use repositories to interact with the database.
• In controllers: Receive services already configured with the database.

Advantages:

• Connection decoupling.
• Code organization.
• Ease of changing databases.
• Simplicity in testing.
• Easy maintenance.
• Centralization of connection.
• System-wide reuse.

Source code:

• https://github.com/ortizdavid/golang-modular-software

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