mirror of
https://git.robbyzambito.me/bluesky-nats-proxy/
synced 2025-12-21 00:34:50 +00:00
92 lines
2.4 KiB
Go
92 lines
2.4 KiB
Go
package main
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import (
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"context"
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"encoding/json"
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"fmt"
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"log"
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"log/slog"
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"os"
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"os/signal"
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"runtime"
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"time"
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_ "github.com/bluesky-social/indigo/api/bsky"
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"github.com/bluesky-social/jetstream/pkg/client"
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"github.com/bluesky-social/jetstream/pkg/client/schedulers/parallel"
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"github.com/bluesky-social/jetstream/pkg/models"
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"github.com/nats-io/nats.go"
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)
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func main() {
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// Connect to NATS
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nc, err := nats.Connect(nats.DefaultURL)
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if err != nil {
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log.Fatalf("Error connecting to NATS: %v", err)
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}
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defer nc.Close()
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log.Println("Connected to NATS")
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// Create Jetstream client with proper configuration
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config := &client.ClientConfig{
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WebsocketURL: "wss://jetstream1.us-east.bsky.network/subscribe",
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}
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logger := slog.Default()
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scheduler := parallel.NewScheduler(runtime.NumCPU(), "nats-proxy", logger, func(ctx context.Context, e *models.Event) error {
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if e != nil && e.Commit != nil && e.Commit.Collection != "" {
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// Get the collection from the commit
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collection := e.Commit.Collection
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// Determine the subject based on the collection
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subject := fmt.Sprintf("bluesky.%s", collection)
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// Convert the event to JSON
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jsonData, err := json.Marshal(e)
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if err != nil {
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log.Printf("Error marshaling event: %v", err)
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return err
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}
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// Publish the event to NATS
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err = nc.Publish(subject, jsonData)
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if err != nil {
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log.Printf("Error publishing to NATS: %v", err)
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return err
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}
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}
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return nil
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})
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log.Println("Created config, logger, scheduler")
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go func() {
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cursor := time.Now().UnixMicro()
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totalServers := 2 // See: https://github.com/bluesky-social/jetstream?tab=readme-ov-file#public-instances
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for i := 0; true; i++ {
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jc, err := client.NewClient(config, logger, scheduler)
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if err != nil {
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log.Fatalf("Error creating Jetstream client: %v", err)
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}
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if err := jc.ConnectAndRead(context.Background(), &cursor); err != nil {
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log.Printf("failed to connect: %v\n", err)
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}
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time.Sleep(1 * time.Second)
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// alternate between available jetstream servers
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config.WebsocketURL = fmt.Sprintf("wss://jetstream%d.us-east.bsky.network/subscribe", i%totalServers+1)
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log.Printf("connecting to %s instead\n", config.WebsocketURL)
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}
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}()
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// Wait for interrupt signal to gracefully shut down
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interrupt := make(chan os.Signal, 1)
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signal.Notify(interrupt, os.Interrupt)
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<-interrupt
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log.Println("Shutting down...")
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}
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