forked from harlow/kinesis-consumer
/
main.go
88 lines (74 loc) · 1.96 KB
/
main.go
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package main
import (
"context"
"flag"
"fmt"
"log"
"os"
"os/signal"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/kinesis"
consumer "github.com/healiha/kinesis-consumer"
store "github.com/healiha/kinesis-consumer/store/redis"
)
// A myLogger provides a minimalistic logger satisfying the Logger interface.
type myLogger struct {
logger *log.Logger
}
// Log logs the parameters to the stdlib logger. See log.Println.
func (l *myLogger) Log(args ...interface{}) {
l.logger.Println(args...)
}
func main() {
var (
app = flag.String("app", "", "Consumer app name")
stream = flag.String("stream", "", "Stream name")
kinesisEndpoint = flag.String("endpoint", "http://localhost:4567", "Kinesis endpoint")
awsRegion = flag.String("region", "us-west-2", "AWS Region")
)
flag.Parse()
// redis checkpoint store
store, err := store.New(*app)
if err != nil {
log.Fatalf("store error: %v", err)
}
// logger
logger := &myLogger{
logger: log.New(os.Stdout, "consumer-example: ", log.LstdFlags),
}
// client
cfg := aws.NewConfig().
WithEndpoint(*kinesisEndpoint).
WithRegion(*awsRegion).
WithLogLevel(3)
var client = kinesis.New(session.Must(session.NewSession(cfg)))
// consumer
c, err := consumer.New(
*stream,
consumer.WithClient(client),
consumer.WithStore(store),
consumer.WithLogger(logger),
)
if err != nil {
log.Fatalf("consumer error: %v", err)
}
// use cancel func to signal shutdown
ctx, cancel := context.WithCancel(context.Background())
// trap SIGINT, wait to trigger shutdown
signals := make(chan os.Signal, 1)
signal.Notify(signals, os.Interrupt)
go func() {
<-signals
fmt.Println("caught exit signal, cancelling context!")
cancel()
}()
// scan stream
err = c.Scan(ctx, func(r *consumer.Record) error {
fmt.Println(string(r.Data))
return nil // continue scanning
})
if err != nil {
log.Fatalf("scan error: %v", err)
}
}