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package gou
import (
"bytes"
"encoding/json"
"io"
"io/ioutil"
"net/http"
"net/url"
)
// Simple Fetch Wrapper, given a url it returns bytes
func Fetch(url string) (ret []byte, err error) {
resp, err := http.Get(url)
defer func() {
if resp != nil && resp.Body != nil {
resp.Body.Close()
}
}()
if err != nil {
Log(WARN, err.Error())
return
}
ret, err = ioutil.ReadAll(resp.Body)
if err != nil {
return
}
return
}
// Simple Fetch Wrapper, given a url it returns bytes and response
func FetchResp(url string) (ret []byte, err error, resp *http.Response) {
resp, err = http.Get(url)
defer func() {
if resp != nil && resp.Body != nil {
resp.Body.Close()
}
}()
if err != nil {
Log(WARN, err.Error())
}
if resp == nil || resp.Body == nil {
return
}
ret, err = ioutil.ReadAll(resp.Body)
return
}
// Simple Fetch Wrapper, given a url it returns Helper, error
// Sends as type application/json, interprets whatever datatype is sent in appropriately
func JsonHelperHttp(method, urlStr string, data interface{}) (JsonHelper, error) {
var body io.Reader
if data != nil {
switch val := data.(type) {
case string:
body = bytes.NewReader([]byte(val))
case io.Reader:
body = val
case url.Values:
body = bytes.NewReader([]byte(val.Encode()))
default:
by, err := json.Marshal(data)
if err != nil {
return nil, err
}
body = bytes.NewReader(by)
}
}
req, err := http.NewRequest(method, urlStr, body)
if err != nil {
return nil, err
}
req.Header.Add("Accept", "application/json")
resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
jh, err := NewJsonHelperReader(resp.Body)
return jh, err
}
// posts an application/json to url with body
// ie: type = application/json
func PostJson(postUrl string, data interface{}) (ret string, err error, resp *http.Response) {
var buf io.Reader
if data != nil {
switch val := data.(type) {
case string:
buf = bytes.NewBufferString(val)
case []byte:
buf = bytes.NewReader(val)
case json.RawMessage:
buf = bytes.NewReader([]byte(val))
case io.Reader:
buf = val
case url.Values:
buf = bytes.NewBufferString(val.Encode())
default:
by, err := json.Marshal(data)
if err != nil {
return "", err, nil
}
buf = bytes.NewReader(by)
}
}
resp, err = http.Post(postUrl, "application/json", buf)
defer func() {
if resp != nil && resp.Body != nil {
resp.Body.Close()
}
}()
if err != nil {
Log(WARN, err.Error())
return "", err, resp
}
bodyBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err, resp
}
return string(bodyBytes), nil, resp
}
// issues http delete an application/json to url with body
func DeleteJson(url, body string) (ret string, err error, resp *http.Response) {
//Post(url string, bodyType string, body io.Reader)
buf := bytes.NewBufferString(body)
Debug(buf.Len())
req, err := http.NewRequest("DELETE", url, buf)
if err != nil {
Debug(err)
return
}
req.Header.Add("Content-Type", "application/json")
resp, err = http.DefaultClient.Do(req) //(url, "application/json", buf)
defer func() {
if resp != nil && resp.Body != nil {
resp.Body.Close()
}
}()
if err != nil {
Log(WARN, err.Error())
return "", err, resp
}
data, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err, resp
}
return string(data), nil, resp
}
// posts a www-form encoded form to url with body
func PostForm(url, body string) (ret string, err error, resp *http.Response) {
//Post(url string, bodyType string, body io.Reader)
buf := bytes.NewBufferString(body)
resp, err = http.Post(url, "application/x-www-form-urlencoded", buf)
defer func() {
if resp != nil && resp.Body != nil {
resp.Body.Close()
}
}()
if err != nil {
Log(WARN, url, " ", body, " ", err.Error())
return "", err, resp
}
data, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err, resp
}
return string(data), nil, resp
}
// issues http put an application/json to url with optional body
func PutJson(url, body string) (ret string, err error, resp *http.Response) {
buf := bytes.NewBufferString(body)
req, err := http.NewRequest("PUT", url, buf)
if err != nil {
Debug(err)
return
}
req.Header.Add("Content-Type", "application/json")
resp, err = http.DefaultClient.Do(req)
defer func() {
if resp != nil && resp.Body != nil {
resp.Body.Close()
}
}()
if err != nil {
Log(WARN, err.Error())
return "", err, resp
}
data, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err, resp
}
return string(data), nil, resp
}
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