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arikawa/gateway/gateway_example_test.go
diamondburned 54cadd2f45 gateway: Refactor for a better concurrent API
This commit refactors the whole package gateway as well as utils/ws
(formerly utils/wsutil) and voice/voicegateway. The new refactor
utilizes a design pattern involving a concurrent loop and an arriving
event channel.

An additional change was made to the way gateway events are typed.
Before, pretty much any type will satisfy a gateway event type, since
the actual type was just interface{}. The new refactor defines a
concrete interface that events can implement:

    type Event interface {
        Op() OpCode
        EventType() EventType
    }

Using this interface, the user can easily add custom gateway events
independently of the library without relying on string maps. This adds a
lot of type safety into the library and makes type-switching on Event
types much more reasonable.

Gateway error callbacks are also almost entirely removed in favor of
custom gateway events. A catch-all can easily be added like this:

    s.AddHandler(func(err error) {
        log.Println("gateway error:, err")
    })
2021-12-14 13:49:34 -08:00

32 lines
637 B
Go

package gateway_test
import (
"context"
"log"
"os"
"os/signal"
"github.com/diamondburned/arikawa/v3/gateway"
)
func Example() {
token := os.Getenv("BOT_TOKEN")
ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt)
defer cancel()
g, err := gateway.NewWithIntents(ctx, token, gateway.IntentGuilds)
if err != nil {
log.Fatalln("failed to initialize gateway:", err)
}
for op := range g.Connect(ctx) {
switch data := op.Data.(type) {
case *gateway.ReadyEvent:
log.Println("logged in as", data.User.Username)
case *gateway.MessageCreateEvent:
log.Println("got message", data.Content)
}
}
}