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54cadd2f45
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")
})
33 lines
687 B
Go
33 lines
687 B
Go
package state_test
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import (
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"context"
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"log"
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"os"
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"os/signal"
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"github.com/diamondburned/arikawa/v3/gateway"
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"github.com/diamondburned/arikawa/v3/state"
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)
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func Example() {
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s := state.New("Bot " + os.Getenv("DISCORD_TOKEN"))
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s.AddIntents(gateway.IntentGuilds | gateway.IntentGuildMessages)
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s.AddHandler(func(m *gateway.MessageCreateEvent) {
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log.Printf("%s: %s", m.Author.Username, m.Content)
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})
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ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt)
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defer cancel()
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if err := s.Open(ctx); err != nil {
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log.Println("cannot open:", err)
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}
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<-ctx.Done() // block until Ctrl+C
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if err := s.Close(); err != nil {
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log.Println("cannot close:", err)
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}
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}
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