AutoInject is a lightweight golang dependency injection framework
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import "github.com/henrythethird/autoinject"Given a service you'd like to inject, register it with the fully qualified struct name to the container:
type Name struct {}
container := NewContainer()
container.Register("mypackage.Name", func() interface{} {
return new(Name)
})Now we need to set up the receiving container with the necessary tags. Note: Make sure the service is a pointer
type SomeStruct struct {
Service *Name `autoinject="-"`
}Once we have done this, we can tell the container to automatically inject the described services
myService := new(SomeStruct)
container.AutoInject(myService)The injectable named parameters can be of any type. Here a basic example
container := NewContainer()
container.AddParameter("theAnswerToEverything", 42)
// We can simply get the parameter out again:
container.GetParameter("theAnswerToEverything")
/* This requires the parameter to be cast, hence is a bit ugly.
* Another solution is to create a struct and automatically inject the named parameter:
*/
type SomeStruct struct {
Answer int `autoinject="theAnswerToEverything"`
}
myStruct := new(SomeStruct)
container.AutoInject(myStruct)
// Now the parameter is injected