Golang

Debug App in monorepo

Let give an example that we want to debug product in the structure below

.

├── cmd
│   └── product
│       ├── config
│       │   └── config.go
│       ├── config.yml
│       └── main.go
├── docker
│   ├── Dockerfile-dev
│   └── Dockerfile-product
├── docker-compose.yaml
├── docs
│   └── readme.md
├── go.mod
├── go.sum
├── Makefile
├── pkg
│   └── readme.md
├── README.md
└── tools
    └── readme.md

What we can do is create the config for it in .vscode/launch.json with the content below

{

    "version": "0.2.0",
    "configurations": [
        {
			"name": "Product - Debug",
			"type": "go",
			"request": "launch",
			"mode": "auto",
			"program": "${workspaceFolder}/cmd/product",
			"showLog": true,
			"logOutput": "debugger",
		}
    ]
}

Notices: ${workspaceFolder}/cmd/product should point to the service that you want to debug.

Then set the breaking points and start to debug it with dlv which has already been there if you use devcontainer in this repository.

DI with wire

// overcome VarArgs in wire

// variadic-functions => https://gobyexample.com/variadic-functions

func initApp(

	ctx context.Context,
	cfg *config.Config,
	pg *postgres.Postgres,
	amqpConn *amqp.Connection,
	opts1 []pkgConsumer.Option,
	opts []pkgPublisher.Option,
) (*App, error) {

	// abc := make([]pkgPublisher.Option, 0)
	// abc = append(abc, pkgPublisher.ExchangeName(""))
	// abc = append(abc, pkgPublisher.BindingKey(""))

	panic(wire.Build(New, pkgPublisher.RabbitMQProviderSet, pkgConsumer.ConsumerProviderSet, eventhandlers.BaristaOrderedEventHandlerSet))
}```