Archiving a bunch of old stuff

oldstuff/sylvilagus/go/sylvilagus-ch04-rpc-client/main.go

@@ -0,0 +1,63 @@
+package main
+
+import (
+	"encoding/json"
+	"log"
+	"time"
+)
+
+import (
+	"github.com/meatballhat/box-o-sand/sylvilagus/go/sylvilagus"
+	"github.com/streadway/amqp"
+)
+
+func main() {
+	connection, err := amqp.Dial(sylvilagus.AMQP_URI)
+	if err != nil {
+		log.Fatal("Failed to connect!:", err)
+	}
+
+	defer connection.Close()
+
+	channel, err := sylvilagus.CreateRPCTopology(connection)
+	if err != nil {
+		log.Fatal("Failed to build topology!:", err)
+	}
+
+	qResult, err := channel.QueueDeclare("", false, false, true, false, nil)
+	if err != nil {
+		log.Fatal("Failed to build topology!:", err)
+	}
+
+	msgBody := &sylvilagus.Ping{
+		ClientName: "RPC Client 1.0",
+		Time:       time.Now(),
+	}
+
+	msgBytes, err := json.Marshal(msgBody)
+	if err != nil {
+		log.Fatal("Failed to json.Marshal the ping!:", err)
+	}
+
+	msg := amqp.Publishing{
+		ContentType:  "application/json",
+		DeliveryMode: amqp.Persistent,
+		Timestamp:    time.Now(),
+		Body:         msgBytes,
+		ReplyTo:      qResult.Name,
+	}
+
+	channel.Publish("rpc", "ping", false, false, msg)
+	log.Println("Sent 'ping' RPC call:", string(msg.Body))
+	log.Println("Waiting for reply...")
+
+	pongs, err := channel.Consume(qResult.Name, qResult.Name, false, false, false, false, nil)
+	for pong := range pongs {
+		log.Println("RPC Reply ---", string(pong.Body))
+		if err = channel.Close(); err != nil {
+			log.Fatal("Failed to close channel!:", err)
+		} else {
+			return
+		}
+	}
+}