https://github.com/miolini/datacounter

Golang counters for readers/writers
https://github.com/miolini/datacounter

Last synced: 2 days ago
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Golang counters for readers/writers

• Host: GitHub
• URL: https://github.com/miolini/datacounter
• Owner: miolini
• License: mit
• Created: 2015-10-14T19:15:50.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2023-04-13T17:55:42.000Z (almost 2 years ago)
• Last Synced: 2024-07-31T20:52:23.743Z (6 months ago)
• Language: Go
• Size: 20.5 KB
• Stars: 48
• Watchers: 3
• Forks: 9
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Datacounter

Golang counters for readers/writers.

[![Build Status](https://travis-ci.org/miolini/datacounter.svg)](https://travis-ci.org/miolini/datacounter) [![GoDoc](https://godoc.org/github.com/miolini/datacounter?status.svg)](http://godoc.org/github.com/miolini/datacounter)

## Examples

### ReaderCounter

```go

buf := bytes.Buffer{}

buf.Write(data)

counter := datacounter.NewReaderCounter(&buf)

io.Copy(ioutil.Discard, counter)

if counter.Count() != dataLen {

	t.Fatalf("count mismatch len of test data: %d != %d", counter.Count(), len(data))

}

```

### WriterCounter

```go

buf := bytes.Buffer{}

counter := datacounter.NewWriterCounter(&buf)

counter.Write(data)

if counter.Count() != dataLen {

	t.Fatalf("count mismatch len of test data: %d != %d", counter.Count(), len(data))

}

```

### http.ResponseWriter Counter

```go

handler := func(w http.ResponseWriter, r *http.Request) {

	w.Write(data)

}

req, err := http.NewRequest("GET", "http://example.com/foo", nil)

if err != nil {

	t.Fatal(err)

}

w := httptest.NewRecorder()

counter := datacounter.NewResponseWriterCounter(w)

handler(counter, req)

if counter.Count() != dataLen {

	t.Fatalf("count mismatch len of test data: %d != %d", counter.Count(), len(data))

}

```