box-o-sand/oldstuff/sylvilagus/go/sylvilagus-ch04-rpc-server/main.go
2015-06-22 13:15:42 -05:00

64 lines
1.3 KiB
Go

package main
import (
"encoding/json"
"fmt"
"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)
}
pings, err := channel.Consume("ping", "ping", false, false, false, false, nil)
if err != nil {
log.Fatal("Failed to start consuming!:", err)
}
quit := make(chan bool)
go func(quit chan bool) {
log.Println("Waiting for RPC calls...")
for ping := range pings {
if err = ping.Ack(false); err == nil {
log.Println("Received API call... replying...")
pingInst := &sylvilagus.Ping{}
err = json.Unmarshal(ping.Body, pingInst)
if err == nil {
msg := amqp.Publishing{
DeliveryMode: amqp.Persistent,
Timestamp: time.Now(),
ContentType: "text/plain",
Body: []byte(fmt.Sprintf("Pong! %s", pingInst.Time)),
}
channel.Publish("", ping.ReplyTo, false, false, msg)
} else {
log.Println("Failed to json.Unmarshal the ping!:", err)
}
} else {
log.Println("Failed to ACK the ping!:", err)
}
}
}(quit)
<-quit
}