Documentation

Overview

    Package transient allows you to tag and retry 'transient' errors (i.e. non-permanent errors which may resolve themselves by trying an operation again). This should be used on errors due to network flake, improperly responsive remote servers (e.g. status 500), unusual timeouts, etc. where there's no concrete knowledge that something is permanently wrong.

    Said another way, transient errors appear to resolve themselves with nothing other than the passage of time.

    Index

    Constants

    This section is empty.

    Variables

    View Source
    var Tag = errors.BoolTag{Key: errors.NewTagKey("this error is temporary")}

      Tag is used to indicate that an error is transient (i.e. something is temporarially wrong).

      Functions

      func Only

      func Only(next retry.Factory) retry.Factory

        Only returns a retry.Iterator that wraps another retry.Iterator. It will fall through to the wrapped Iterator ONLY if an error with the transient.Tag is encountered; otherwise, it will not retry.

        Returns nil if f is nil.

        Example:

          err := retry.Retry(c, transient.Only(retry.Default), func() error {
            if condition == "red" {
        		   // This error isn't transient, so it won't be retried.
        		   return errors.New("fatal bad condition")
            } elif condition == "green" {
        		   // This isn't an error, so it won't be retried.
        		   return nil
            }
            // This will get retried, because it's transient.
            return errors.New("dunno what's wrong", transient.Tag)
          })
        

        Types

        This section is empty.

        Source Files