...

test-feed/Dockerfile

@@ -0,0 +1,14 @@
+FROM golang:1.21-alpine
+
+WORKDIR /app
+
+# Create test program
+COPY test_feed.go .
+
+# Download dependencies
+RUN go mod init test && go get github.com/gorilla/websocket
+
+# Build test
+RUN go build -o test_feed test_feed.go
+
+CMD ["./test_feed"]

test-feed/test_feed.go

@@ -0,0 +1,80 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/gorilla/websocket"
+)
+
+func main() {
+	fmt.Println("=== Arbitrum Sequencer Feed Test ===")
+	fmt.Println("Testing: wss://arb1.arbitrum.io/feed")
+	fmt.Println()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	log.Println("[1/3] Connecting to Arbitrum sequencer feed...")
+
+	dialer := websocket.DefaultDialer
+	dialer.HandshakeTimeout = 10 * time.Second
+
+	conn, resp, err := dialer.DialContext(ctx, "wss://arb1.arbitrum.io/feed", nil)
+	if err != nil {
+		log.Fatalf("❌ Connection FAILED: %v", err)
+	}
+	defer conn.Close()
+
+	log.Printf("✅ Connected successfully! (HTTP %d)", resp.StatusCode)
+	log.Println()
+	log.Println("[2/3] Waiting for messages from feed (30 second timeout)...")
+
+	// Set read deadline
+	conn.SetReadDeadline(time.Now().Add(25 * time.Second))
+
+	// Try to read messages
+	messageCount := 0
+	startTime := time.Now()
+
+	for i := 0; i < 100; i++ {
+		var msg map[string]interface{}
+		err := conn.ReadJSON(&msg)
+		if err != nil {
+			elapsed := time.Since(startTime)
+			log.Printf("❌ Read error after %d messages (%.2fs elapsed): %v", messageCount, elapsed.Seconds(), err)
+			break
+		}
+
+		messageCount++
+		elapsed := time.Since(startTime)
+
+		// Print first 3 messages in full
+		if messageCount <= 3 {
+			msgJSON, _ := json.MarshalIndent(msg, "", "  ")
+			log.Printf("✅ Message %d (%.2fs):\n%s\n", messageCount, elapsed.Seconds(), msgJSON)
+		} else if messageCount%10 == 0 {
+			log.Printf("✅ Received %d messages so far (%.2fs elapsed)...", messageCount, elapsed.Seconds())
+		}
+
+		// Reset deadline for next read
+		conn.SetReadDeadline(time.Now().Add(25 * time.Second))
+	}
+
+	log.Println()
+	log.Println("[3/3] Test Results:")
+	if messageCount == 0 {
+		log.Println("❌ FAILED - ZERO messages received from feed")
+		log.Println("   The feed connects but doesn't send any data")
+		log.Println("   This could be:")
+		log.Println("   - Cloudflare blocking the connection")
+		log.Println("   - Feed requires authentication")
+		log.Println("   - Feed URL is incorrect")
+	} else {
+		log.Printf("✅ SUCCESS - Received %d messages from feed", messageCount)
+		log.Println("   The feed is working correctly!")
+	}
+}