package service import ( "context" "fmt" "time" "github.com/micro/go-micro/client" "github.com/micro/go-micro/debug/log" pb "github.com/micro/go-micro/debug/service/proto" ) // Debug provides debug service client type Debug struct { dbg pb.DebugService } // NewDebug provides Debug service implementation func NewDebug(name string) *Debug { // create default client cli := client.DefaultClient return &Debug{ dbg: pb.NewDebugService(name, cli), } } // Logs queries the service logs and returns a channel to read the logs from func (d *Debug) Log(opts ...log.ReadOption) (<-chan log.Record, error) { options := log.ReadOptions{} // initialize the read options for _, o := range opts { o(&options) } req := &pb.LogRequest{} if !options.Since.IsZero() { req.Since = options.Since.Unix() } if options.Count > 0 { req.Count = int64(options.Count) } req.Stream = options.Stream // get the log stream stream, err := d.dbg.Log(context.Background(), req) if err != nil { return nil, fmt.Errorf("failed getting log stream: %s", err) } // log channel for streaming logs logChan := make(chan log.Record) // go stream logs go d.streamLogs(logChan, stream) return logChan, nil } func (d *Debug) streamLogs(logChan chan log.Record, stream pb.Debug_LogService) { defer stream.Close() for { resp, err := stream.Recv() if err != nil { break } metadata := make(map[string]string) for k, v := range resp.Metadata { metadata[k] = v } record := log.Record{ Timestamp: time.Unix(resp.Timestamp, 0), Value: resp.Value, Metadata: metadata, } logChan <- record } close(logChan) }