mirror of
https://github.com/lukaszraczylo/go-telegram.git
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lukaszraczylo
ac7cae8fa7
A fully-generated, strongly-typed Go client for the Telegram Bot API. * 176 methods + 301 types generated from Bot API v10.0 * 1408 auto-generated tests (8 scenarios per method) * Typed unions throughout — no 'any' in the public surface * Pluggable HTTP transport and JSON codec (default goccy/go-json) * Built-in retry middleware honouring Telegram's retry_after * Generic dispatcher with filters and conversation handlers * Self-verifying codegen pipeline (regen → audit → emit → run tests) * 14 example bots covering common patterns
65 lines
1.6 KiB
Go
65 lines
1.6 KiB
Go
// Package main demonstrates per-user state without globals via closures.
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// Each user has an independent counter that persists for the bot's lifetime.
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//
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// TELEGRAM_BOT_TOKEN=xxx go run ./examples/stateful
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package main
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import (
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"context"
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"fmt"
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"log"
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"os"
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"os/signal"
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"sync"
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"syscall"
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"github.com/lukaszraczylo/go-telegram/api"
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"github.com/lukaszraczylo/go-telegram/client"
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"github.com/lukaszraczylo/go-telegram/dispatch"
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"github.com/lukaszraczylo/go-telegram/transport"
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)
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// counterStore is a concurrent-safe per-user counter. Production code
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// would back this with Redis / Postgres / sqlite. For demo purposes,
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// in-memory is fine.
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type counterStore struct {
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mu sync.Mutex
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counts map[int64]int
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}
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func (s *counterStore) inc(userID int64) int {
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s.mu.Lock()
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defer s.mu.Unlock()
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s.counts[userID]++
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return s.counts[userID]
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}
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func main() {
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token := os.Getenv("TELEGRAM_BOT_TOKEN")
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if token == "" {
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log.Fatal("TELEGRAM_BOT_TOKEN required")
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}
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ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
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defer stop()
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bot := client.New(token)
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store := &counterStore{counts: map[int64]int{}}
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router := dispatch.New(bot)
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router.OnCommand("/count", func(c *dispatch.Context, m *api.Message) error {
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if m.From == nil {
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return nil
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}
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n := store.inc(m.From.ID)
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_, err := api.SendMessage(c.Ctx, c.Bot, &api.SendMessageParams{
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ChatID: api.ChatIDFromInt(m.Chat.ID),
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Text: fmt.Sprintf("Your count: %d", n),
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})
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return err
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})
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if err := router.Run(ctx, transport.NewLongPoller(bot)); err != nil && err != context.Canceled {
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log.Printf("router exited: %v", err)
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}
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}
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