64 lines
1.2 KiB
Go
64 lines
1.2 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"expvar"
|
|
"flag"
|
|
"fmt"
|
|
"log"
|
|
"net"
|
|
"net/http"
|
|
"os"
|
|
|
|
consumer "github.com/harlow/kinesis-consumer"
|
|
checkpoint "github.com/harlow/kinesis-consumer/checkpoint/redis"
|
|
)
|
|
|
|
// kick off a server for exposing metrics
|
|
func init() {
|
|
sock, err := net.Listen("tcp", "localhost:8080")
|
|
if err != nil {
|
|
log.Fatalf("net listen error: %v", err)
|
|
}
|
|
go func() {
|
|
fmt.Println("Metrics available at http://localhost:8080/debug/vars")
|
|
http.Serve(sock, nil)
|
|
}()
|
|
}
|
|
|
|
func main() {
|
|
var (
|
|
app = flag.String("app", "", "App name")
|
|
stream = flag.String("stream", "", "Stream name")
|
|
)
|
|
flag.Parse()
|
|
|
|
var (
|
|
counter = expvar.NewMap("counters")
|
|
logger = log.New(os.Stdout, "consumer-example: ", log.LstdFlags)
|
|
)
|
|
|
|
// checkpoint
|
|
ck, err := checkpoint.New(*app, *stream)
|
|
if err != nil {
|
|
log.Fatalf("checkpoint error: %v", err)
|
|
}
|
|
|
|
// consumer
|
|
c, err := consumer.New(ck, *app, *stream,
|
|
consumer.WithLogger(logger),
|
|
consumer.WithCounter(counter),
|
|
)
|
|
if err != nil {
|
|
log.Fatalf("consumer error: %v", err)
|
|
}
|
|
|
|
// start scan
|
|
err = c.Scan(context.TODO(), func(r *consumer.Record) bool {
|
|
fmt.Println(string(r.Data))
|
|
return true // continue scanning
|
|
})
|
|
if err != nil {
|
|
log.Fatalf("scan error: %v", err)
|
|
}
|
|
}
|