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/
main.go
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/
main.go
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// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"context"
"encoding/json"
"log"
"os"
"os/signal"
"time"
"github.com/cloudwego/kitex-examples/kitex_gen/api"
"github.com/cloudwego/kitex-examples/kitex_gen/api/echo"
kitexclient "github.com/cloudwego/kitex/client"
"github.com/cloudwego/kitex/pkg/klog"
fileclient "github.com/kitex-contrib/config-file/client"
"github.com/kitex-contrib/config-file/filewatcher"
"github.com/kitex-contrib/config-file/parser"
)
const (
filepath = "kitex_client.json"
key = "ClientName/ServiceName"
serviceName = "ServiceName"
clientName = "echo"
)
// customed by user
type MyParser struct{}
// one example for custom parser
// if the type of client config is json or yaml,just using default parser
func (p *MyParser) Decode(kind parser.ConfigType, data []byte, config interface{}) error {
return json.Unmarshal(data, config)
}
func main() {
klog.SetLevel(klog.LevelDebug)
// create a file watcher object
fw, err := filewatcher.NewFileWatcher(filepath)
if err != nil {
panic(err)
}
// start watching file changes
if err = fw.StartWatching(); err != nil {
panic(err)
}
go func() {
sig := make(chan os.Signal, 1)
signal.Notify(sig, os.Interrupt, os.Kill)
<-sig
fw.StopWatching()
os.Exit(1)
}()
client, err := echo.NewClient(
serviceName,
kitexclient.WithHostPorts("0.0.0.0:8888"),
kitexclient.WithSuite(fileclient.NewSuite(serviceName, key, fw)),
)
if err != nil {
log.Fatal(err)
}
for {
req := &api.Request{Message: "my request"}
resp, err := client.Echo(context.Background(), req)
if err != nil {
klog.Errorf("take request error: %v", err)
} else {
klog.Infof("receive response %v", resp)
}
time.Sleep(time.Second * 10)
}
}