Manage and dispatch events within your Go application. This is somewhat inspired from Laravel's simple approach to the observer pattern.
Install event using the go get command:
$ go get github.com/gocrumb/event
The package requires no additional dependencies other than Go itself.
Run go generate with a file like the following:
package main
//go:generate event -type=OrderPlaced,OrderShipped
type OrderPlaced struct {
OrderID int
CustomerID int
}
type OrderShipped struct {
OrderID int
}Use events from everywhere within your applications:
OnOrderPlaced(func(e OrderPlaced) {
fmt.Println("New Order")
fmt.Println("Order ID: ", e.OrderID)
fmt.Println("Customer ID:", e.CustomerID)
fmt.Println()
})
OnOrderShipped(func(e OrderShipped) {
fmt.Println("Order Shipped")
fmt.Println("Order ID:", e.OrderID)
fmt.Println()
})
// From elsewhere in your application:
EmitOrderPlaced(OrderPlaced{
OrderID: 5,
CustomerID: 265,
})
EmitOrderShipped(OrderShipped{
OrderID: 5,
})Contributions are welcome.
This package is available under the BSD (3-Clause) License.