tile38/vendor/github.com/eapache/go-resiliency/batcher/README.md

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batcher
=======
[![Build Status](https://travis-ci.org/eapache/go-resiliency.svg?branch=master)](https://travis-ci.org/eapache/go-resiliency)
[![GoDoc](https://godoc.org/github.com/eapache/go-resiliency/batcher?status.svg)](https://godoc.org/github.com/eapache/go-resiliency/batcher)
The batching resiliency pattern for golang.
Creating a batcher takes two parameters:
- the timeout to wait while collecting a batch
- the function to run once a batch has been collected
You can also optionally set a prefilter to fail queries before they enter the
batch.
```go
b := batcher.New(10*time.Millisecond, func(params []interface{}) error {
// do something with the batch of parameters
return nil
})
b.Prefilter(func(param interface{}) error {
// do some sort of sanity check on the parameter, and return an error if it fails
return nil
})
for i := 0; i < 10; i++ {
go b.Run(i)
}
```