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So they use Clue for observability instead of the deprecated Goa middlewares.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,11 +1,11 @@ | ||
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| {{ comment "Wait for signal." }} | ||
| logger.Printf("exiting (%v)", <-errc) | ||
| log.Printf(ctx, "exiting (%v)", <-errc) | ||
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| {{ comment "Send cancellation signal to the goroutines." }} | ||
| cancel() | ||
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| wg.Wait() | ||
| logger.Println("exited") | ||
| log.Printf(ctx, "exited") | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,9 +1,13 @@ | ||
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| {{ comment "Setup logger. Replace logger with your own log package of choice." }} | ||
| var ( | ||
| logger *log.Logger | ||
| ) | ||
| { | ||
| logger = log.New(os.Stderr, "[{{ .APIPkg }}] ", log.Ltime) | ||
| } | ||
| format := log.FormatJSON | ||
| if log.IsTerminal() { | ||
| format = log.FormatTerminal | ||
| } | ||
| ctx := log.Context(context.Background(), log.WithFormat(format)) | ||
| if *dbgF { | ||
| ctx = log.Context(ctx, log.WithDebug()) | ||
| log.Debugf(ctx, "debug logs enabled") | ||
| } | ||
| log.Print(ctx, log.KV{K: "http-port", V: *httpPortF}) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| func main() { | ||
| var ( | ||
| hostF = flag.String("host", "localhost", "Server host (valid values: localhost)") | ||
| addrF = flag.String("url", "", "URL to service host") | ||
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| verboseF = flag.Bool("verbose", false, "Print request and response details") | ||
| vF = flag.Bool("v", false, "Print request and response details") | ||
| timeoutF = flag.Int("timeout", 30, "Maximum number of seconds to wait for response") | ||
| ) | ||
| flag.Usage = usage | ||
| flag.Parse() | ||
| var ( | ||
| addr string | ||
| timeout int | ||
| debug bool | ||
| ) | ||
| { | ||
| addr = *addrF | ||
| if addr == "" { | ||
| switch *hostF { | ||
| case "localhost": | ||
| addr = "http://localhost:80" | ||
| default: | ||
| fmt.Fprintf(os.Stderr, "invalid host argument: %q (valid hosts: localhost)\n", *hostF) | ||
| os.Exit(1) | ||
| } | ||
| } | ||
| timeout = *timeoutF | ||
| debug = *verboseF || *vF | ||
| } | ||
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| var ( | ||
| scheme string | ||
| host string | ||
| ) | ||
| { | ||
| u, err := url.Parse(addr) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "invalid URL %#v: %s\n", addr, err) | ||
| os.Exit(1) | ||
| } | ||
| scheme = u.Scheme | ||
| host = u.Host | ||
| } | ||
| var ( | ||
| endpoint goa.Endpoint | ||
| payload any | ||
| err error | ||
| ) | ||
| { | ||
| switch scheme { | ||
| case "http", "https": | ||
| endpoint, payload, err = doHTTP(scheme, host, timeout, debug) | ||
| case "grpc", "grpcs": | ||
| endpoint, payload, err = doGRPC(scheme, host, timeout, debug) | ||
| default: | ||
| fmt.Fprintf(os.Stderr, "invalid scheme: %q (valid schemes: grpc|http)\n", scheme) | ||
| os.Exit(1) | ||
| } | ||
| } | ||
| if err != nil { | ||
| if err == flag.ErrHelp { | ||
| os.Exit(0) | ||
| } | ||
| fmt.Fprintln(os.Stderr, err.Error()) | ||
| fmt.Fprintln(os.Stderr, "run '"+os.Args[0]+" --help' for detailed usage.") | ||
| os.Exit(1) | ||
| } | ||
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| data, err := endpoint(context.Background(), payload) | ||
| if err != nil { | ||
| fmt.Fprintln(os.Stderr, err.Error()) | ||
| os.Exit(1) | ||
| } | ||
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| if data != nil { | ||
| m, _ := json.MarshalIndent(data, "", " ") | ||
| fmt.Println(string(m)) | ||
| } | ||
| } | ||
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| func usage() { | ||
| fmt.Fprintf(os.Stderr, `%s is a command line client for the test api API. | ||
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| Usage: | ||
| %s [-host HOST][-url URL][-timeout SECONDS][-verbose|-v] SERVICE ENDPOINT [flags] | ||
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| -host HOST: server host (localhost). valid values: localhost | ||
| -url URL: specify service URL overriding host URL (http://localhost:8080) | ||
| -timeout: maximum number of seconds to wait for response (30) | ||
| -verbose|-v: print request and response details (false) | ||
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| Commands: | ||
| %s | ||
| Additional help: | ||
| %s SERVICE [ENDPOINT] --help | ||
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| Example: | ||
| %s | ||
| `, os.Args[0], os.Args[0], indent(httpUsageCommands()), os.Args[0], indent(httpUsageExamples())) | ||
| } | ||
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| func indent(s string) string { | ||
| if s == "" { | ||
| return "" | ||
| } | ||
| return " " + strings.Replace(s, "\n", "\n ", -1) | ||
| } |
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