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https://github.com/hslam/response

Package response implements an HTTP response writer.
https://github.com/hslam/response

chunk chunk-writer chunked go golang http response response-writer

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Package response implements an HTTP response writer.

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# response
[![PkgGoDev](https://pkg.go.dev/badge/github.com/hslam/response)](https://pkg.go.dev/github.com/hslam/response)
[![Build Status](https://github.com/hslam/response/workflows/build/badge.svg)](https://github.com/hslam/response/actions)
[![Go Report Card](https://goreportcard.com/badge/github.com/hslam/response)](https://goreportcard.com/report/github.com/hslam/response)
[![LICENSE](https://img.shields.io/github/license/hslam/response.svg?style=flat-square)](https://github.com/hslam/response/blob/master/LICENSE)

Package response implements an HTTP response writer.

## Get started

### Install
```
go get github.com/hslam/response
```
### Import
```
import "github.com/hslam/response"
```
### Usage
#### Example
```go
package main

import (
"bufio"
"github.com/hslam/mux"
"github.com/hslam/response"
"net"
"net/http"
)

func main() {
m := mux.New()
m.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Hello World"))
})
ListenAndServe(":8080", m)
}

func ListenAndServe(addr string, handler http.Handler) error {
ln, err := net.Listen("tcp", addr)
if err != nil {
return err
}
for {
conn, err := ln.Accept()
if err != nil {
return err
}
go func(conn net.Conn) {
reader := bufio.NewReader(conn)
rw := bufio.NewReadWriter(reader, bufio.NewWriter(conn))
var err error
var req *http.Request
for {
req, err = http.ReadRequest(reader)
if err != nil {
break
}
res := response.NewResponse(req, conn, rw)
handler.ServeHTTP(res, req)
res.FinishRequest()
response.FreeResponse(res)
}
}(conn)
}
}
```

#### Netpoll Example
```go
package main

import (
"bufio"
"github.com/hslam/mux"
"github.com/hslam/netpoll"
"github.com/hslam/response"
"net"
"net/http"
"sync"
)

func main() {
m := mux.New()
m.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Hello World"))
})
ListenAndServe(":8080", m)
}

func ListenAndServe(addr string, handler http.Handler) error {
var h = &netpoll.ConnHandler{}
type Context struct {
reader *bufio.Reader
rw *bufio.ReadWriter
conn net.Conn
serving sync.Mutex
}
h.SetUpgrade(func(conn net.Conn) (netpoll.Context, error) {
reader := bufio.NewReader(conn)
rw := bufio.NewReadWriter(reader, bufio.NewWriter(conn))
return &Context{reader: reader, conn: conn, rw: rw}, nil
})
h.SetServe(func(context netpoll.Context) error {
ctx := context.(*Context)
ctx.serving.Lock()
req, err := http.ReadRequest(ctx.reader)
if err != nil {
ctx.serving.Unlock()
return err
}
res := response.NewResponse(req, ctx.conn, ctx.rw)
handler.ServeHTTP(res, req)
res.FinishRequest()
ctx.serving.Unlock()
response.FreeResponse(res)
return nil
})
return netpoll.ListenAndServe("tcp", addr, h)
}
```

curl -XGET http://localhost:8080
```
Hello World
```

### License
This package is licensed under a MIT license (Copyright (c) 2020 Meng Huang)

### Author
response was written by Meng Huang.