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rxtx.go
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rxtx.go
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package main
import (
"flag"
"io/ioutil"
"net/http"
"time"
"fmt"
"github.com/gin-contrib/zap"
"github.com/gin-gonic/gin"
"github.com/txn2/rxtx/rtq"
"go.uber.org/zap"
)
func main() {
var port = flag.String("port", "8080", "Server port.")
var path = flag.String("path", "./", "Directory to store database.")
var interval = flag.Int("interval", 60, "Seconds between intervals.")
var batch = flag.Int("batch", 100, "Batch size.")
var maxq = flag.Int("maxq", 100000, "Max number of message in queue.")
var ingest = flag.String("ingest", "http://localhost:8081/in", "Ingest server.")
flag.Parse()
zapCfg := zap.NewProductionConfig()
zapCfg.DisableCaller = true
zapCfg.DisableStacktrace = true
logger, err := zapCfg.Build()
if err != nil {
fmt.Printf("Can not build logger: %s\n", err.Error())
return
}
err = logger.Sync()
if err != nil {
fmt.Println("WARNING: Logger sync error: " + err.Error())
}
logger.Info("Starting rxtx...")
// database
q, err := rtq.NewQ("rxtx", rtq.Config{
Interval: time.Duration(*interval) * time.Second,
Batch: *batch,
MaxInQueue: *maxq,
Logger: logger,
Receiver: *ingest,
Path: *path,
})
if err != nil {
panic(err)
}
// gin config
gin.SetMode(gin.ReleaseMode)
gin.DisableConsoleColor()
// discard default logger
gin.DefaultWriter = ioutil.Discard
// gin router
r := gin.New()
// add queue to the context
r.Use(func(c *gin.Context) {
c.Set("Q", q)
c.Next()
})
// use zap logger
r.Use(ginzap.Ginzap(logger, time.RFC3339, true))
rxRoute := "/rx/:producer/:key/*label"
r.POST(rxRoute, rtq.RxRouteHandler)
r.OPTIONS(rxRoute, preflight)
logger.Info("Listening on port: " + *port)
// block on server run
r.Run(":" + *port)
}
// preflight permissive CORS headers
func preflight(c *gin.Context) {
c.Header("Access-Control-Allow-Origin", "*")
c.Header("Access-Control-Allow-Headers", "access-control-allow-origin, access-control-allow-headers, content-type")
c.JSON(http.StatusOK, struct{}{})
}