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Example code of enl/retry-loop

Informations about the package retry-loop

RetryLoop

Retry Loop is widely used concept which can be easily explained with "retry on failure and give up after several retries".

Installation

Usage

For example, we need to push some data into remote service with the following pseudocode:

But what if this remove service is temporarily down or network connection is unstable in this particular moment?

The common solution is to use try-catch. But what about several retries?

This code looks much better and does the trick:

Give up on some exceptions

Sometimes, you need to give up on several exceptions, for example, if your client throws 'BadRequestException', you should give up trying to push the data. In order to achieve this, you can specify second parameter for RetryLoop constructor:

In case of BadRequestException, RetryLoop will throw LoopFailed exception with actual exception as previous.

Before Retry hook

If you need to perform some action before retry (logging, reconnection, whatever you need), just use $beforeRetry parameter:

RetryLoop is immutable!

RetryLoop class itself is immutable and does not store any internal state except given constructor parameters, so that you can easily reuse single loop instance for several retries, if it is necessary

Builder

Moreover, there is a LoopBuilder that provides fluent interface for loop building:

All versions of retry-loop with dependencies

PHP Build Version
Package Version
Requires php Version ~7.0
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