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Andrey Anisimov
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Aug 11, 2021
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,70 +1,10 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "net/http" | ||
| "time" | ||
|
|
||
| "github.com/avast/retry-go" | ||
| "github.com/pkg/errors" | ||
|
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| "github.com/t4rest/t4rest-go/httpclient" | ||
| "github.com/t4rest/t4rest-go/logger" | ||
| "github.com/t4rest/t4rest-go/module" | ||
| ret "github.com/t4rest/t4rest-go/retry" | ||
| "github.com/t4rest/t4rest-go/trace" | ||
| "fmt" | ||
| ) | ||
|
|
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| func main() { | ||
|
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| log := logger.New(logger.Conf{AppID: "AppID", LogLevel: "debug"}) | ||
| defer log.Flush() | ||
|
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| flush, err := trace.New(trace.Conf{AppID: "AppID", CollectorEndpoint: "http://localhost:14268/api/traces"}) | ||
| if err != nil { | ||
| log.Fatal(errors.Wrap(err, "trace.New")) | ||
| } | ||
| defer flush() | ||
|
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| ctx := context.Background() | ||
|
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| httpClient := httpclient.New(httpclient.Conf{HTTPTimeout: 10 * time.Second}) | ||
|
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| // retry example | ||
| err500 := errors.New("Server error") | ||
|
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| r := ret.New(ret.Conf{Attempts: 3, DelayMs: 10 * time.Second, MaxDelayMs: 30 * time.Second}) | ||
| err = r.Do( | ||
| func() error { | ||
|
|
||
| req, err := http.NewRequest(http.MethodGet, "https://google.com", nil) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| req.Header.Set("Content-Type", "application/json") | ||
| resp, err := httpClient.Do(req) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer resp.Body.Close() //nolint: errcheck | ||
|
|
||
| if resp.StatusCode >= http.StatusInternalServerError { | ||
| return errors.Wrap(err500, "server is down") | ||
| } | ||
|
|
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| return nil | ||
| }, | ||
| retry.OnRetry(func(i uint, err error) { | ||
| log.With("retry_attempt", i, "error", err).Info("onRetry") | ||
| }), | ||
| retry.RetryIf(func(err error) bool { | ||
| return errors.Is(err, err500) | ||
| }), | ||
| retry.Context(ctx), | ||
| ) | ||
| if err != nil { | ||
| log.With("error", err).Error("Get(google.com)") | ||
| } | ||
|
|
||
| module.Run(log) | ||
| fmt.Println("golang") | ||
| } |
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