gohttp

package module
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 Go to latest Published: Jul 28, 2020 License: MIT Imports: 23 Imported by: 0

README

gohttp

golang http client , support multi local ip address.

Thanks

develop base on gorequest

Documentation

Index

Constants

View Source 
const (
	POST   = "POST"
	GET    = "GET"
	HEAD   = "HEAD"
	PUT    = "PUT"
	DELETE = "DELETE"
	PATCH  = "PATCH"
)

HTTP methods we support

Variables

View Source 
var Types = map[string]string{
	"html":       "text/html",
	"json":       "application/json",
	"xml":        "application/xml",
	"urlencoded": "application/x-www-form-urlencoded",
	"form":       "application/x-www-form-urlencoded",
	"form-data":  "application/x-www-form-urlencoded",
	"text":       "text/plain",
	"multipart":  "multipart/form-data",
	"stream":     "application/octet-stream",
}

Functions

func GetDefaultClient 

func GetDefaultClient() *http.Client

func GetDefaultDialer 

func GetDefaultDialer() *net.Dialer

func GetDefaultTransport 

func GetDefaultTransport() *http.Transport

func GetHostDelay 

func GetHostDelay(host string) time.Duration

func IsDebug 

func IsDebug() bool

func MakeClient 

func MakeClient(transport http.RoundTripper, jar http.CookieJar) *http.Client

func MakeCookiejar 

func MakeCookiejar() http.CookieJar

func MakeTransport 

func MakeTransport(ip string) *http.Transport

func ResetCookie 

func ResetCookie(urlstr string) error

func SetDebug 

func SetDebug(d bool)

func SetHostDelay 

func SetHostDelay(host string, delay time.Duration)

func SetOption 

func SetOption(option *Option)

Types

type ClientGetter 

type ClientGetter interface {
	GetHttpClient(httpurl string, proxyurl string, usejar bool) (*http.Client, error)
}

func GetDefaultGetter 

func GetDefaultGetter() ClientGetter

type File 

type File struct {
	Filename    string
	Fieldname   string
	Reader      io.Reader
	Len         int64
	ContentType string
}

type HttpAgent 

type HttpAgent struct {
	Url          string
	ProxyUrl     string
	Method       string
	Header       map[string]string
	TargetType   string
	ForceType    string
	Data         map[string]interface{}
	FormData     url.Values
	QueryData    url.Values
	FileData     []File
	Cookies      []*http.Cookie
	TlsConfig    *tls.Config
	MaxTimeout   time.Duration
	MaxRedirects int
	Client       *http.Client
	SingleClient bool
	Usejar       bool
	Errors       []error
	DataAll      interface{}
	Getter       ClientGetter
}

A HttpAgent is a object storing all request data for client.

func New 

func New() *HttpAgent

Used to create a new HttpAgent object.

func NewSingle 

func NewSingle() *HttpAgent

func (*HttpAgent) AddCookie 

func (s *HttpAgent) AddCookie(c *http.Cookie) *HttpAgent

AddCookie adds a cookie to the request. The behavior is the same as AddCookie on Request from net/http

func (*HttpAgent) Bytes 

func (s *HttpAgent) Bytes(status ...int) ([]byte, int, error)

func (*HttpAgent) ClearAgent 

func (s *HttpAgent) ClearAgent()

Clear HttpAgent data for another new request.

func (*HttpAgent) Delete 

func (s *HttpAgent) Delete(targetUrl string) *HttpAgent

func (*HttpAgent) End 

func (s *HttpAgent) End(callback ...func(response *http.Response, errs []error)) (*http.Response, []error)

End is the most important function that you need to call when ending the chain. The request won't proceed without calling it. End function returns Response which matchs the structure of Response type in Golang's http package (but without Body data). The body data itself returns as a string in a 2nd return value. Lastly but worht noticing, error array (NOTE: not just single error value) is returned as a 3rd value and nil otherwise.

For example: 

resp, body, errs := gohttp.New().Get("http://www.google.com").End()
if( errs != nil){
  fmt.Println(errs)
}
fmt.Println(resp, body)

Moreover, End function also supports callback which you can put as a parameter. This extends the flexibility and makes gohttp fun and clean! You can use gohttp in whatever style you love!

For example: 

func printBody(resp gohttp.Response, body string, errs []error){
  fmt.Println(resp.Status)
}
gohttp.New().Get("http://www..google.com").End(printBody)

func (*HttpAgent) Get 

func (s *HttpAgent) Get(targetUrl string) *HttpAgent

func (*HttpAgent) Head 

func (s *HttpAgent) Head(targetUrl string) *HttpAgent

func (*HttpAgent) Jar 

func (s *HttpAgent) Jar(use bool) *HttpAgent

func (*HttpAgent) MaxRedirect 

func (s *HttpAgent) MaxRedirect(redirect int) *HttpAgent

func (*HttpAgent) Param 

func (s *HttpAgent) Param(key string, value string) *HttpAgent

As Go conventions accepts ; as a synonym for &. (https://github.com/golang/go/issues/2210) Thus, Query won't accept ; in a querystring if we provide something like fields=f1;f2;f3 This Param is then created as an alternative method to solve this.

func (*HttpAgent) Patch 

func (s *HttpAgent) Patch(targetUrl string) *HttpAgent

func (*HttpAgent) Post 

func (s *HttpAgent) Post(targetUrl string) *HttpAgent

func (*HttpAgent) Proxy 

func (s *HttpAgent) Proxy(proxyUrl string) *HttpAgent

Proxy function accepts a proxy url string to setup proxy url for any request. It provides a convenience way to setup proxy which have advantages over usual old ways. One example is you might try to set `http_proxy` environment. This means you are setting proxy up for all the requests. You will not be able to send different request with different proxy unless you change your `http_proxy` environment again. Another example is using Golang proxy setting. This is normal prefer way to do but too verbase compared to gohttp's Proxy: 

gohttp.New().Proxy("http://myproxy:9999").
  Post("http://www.google.com").
  End()

To set no_proxy, just put empty string to Proxy func: 

gohttp.New().Proxy("").
  Post("http://www.google.com").
  End()

func (*HttpAgent) Put 

func (s *HttpAgent) Put(targetUrl string) *HttpAgent

func (*HttpAgent) Query 

func (s *HttpAgent) Query(content interface{}) *HttpAgent

Query function accepts either json string or strings which will form a query-string in url of GET method or body of POST method. For example, making "/search?query=bicycle&size=50x50&weight=20kg" using GET method: 

gohttp.New().
  Get("/search").
  Query(`{ query: 'bicycle' }`).
  Query(`{ size: '50x50' }`).
  Query(`{ weight: '20kg' }`).
  End()

Or you can put multiple json values: 

gohttp.New().
  Get("/search").
  Query(`{ query: 'bicycle', size: '50x50', weight: '20kg' }`).
  End()

Strings are also acceptable: 

gohttp.New().
  Get("/search").
  Query("query=bicycle&size=50x50").
  Query("weight=20kg").
  End()

Or even Mixed! :) 

gohttp.New().
  Get("/search").
  Query("query=bicycle").
  Query(`{ size: '50x50', weight:'20kg' }`).
  End()

func (*HttpAgent) Send 

func (s *HttpAgent) Send(content interface{}) *HttpAgent

Send function accepts either json string or query strings which is usually used to assign data to POST or PUT method. Without specifying any type, if you give Send with json data, you are doing requesting in json format: 

gohttp.New().
  Post("/search").
  Send(`{ query: 'sushi' }`).
  End()

While if you use at least one of querystring, gohttp understands and automatically set the Content-Type to `application/x-www-form-urlencoded` 

gohttp.New().
  Post("/search").
  Send("query=tonkatsu").
  End()

So, if you want to strictly send json format, you need to use Type func to set it as `json` (Please see more details in Type function). You can also do multiple chain of Send: 

gohttp.New().
  Post("/search").
  Send("query=bicycle&size=50x50").
  Send(`{ wheel: '4'}`).
  End()

From v0.2.0, Send function provide another convenience way to work with Struct type. You can mix and match it with json and query string: 

type BrowserVersionSupport struct {
  Chrome string
  Firefox string
}
ver := BrowserVersionSupport{ Chrome: "37.0.2041.6", Firefox: "30.0" }
gohttp.New().
  Post("/update_version").
  Send(ver).
  Send(`{"Safari":"5.1.10"}`).
  End()

func (*HttpAgent) SendBytes 

func (s *HttpAgent) SendBytes(data []byte) *HttpAgent

func (*HttpAgent) SendFile 

func (s *HttpAgent) SendFile(file interface{}, args ...string) *HttpAgent

SendFile function works only with type "multipart". The function accepts one mandatory and up to two optional arguments. The mandatory (first) argument is the file. The function accepts a path to a file as string: 

gorequest.New().
  Post("http://example.com").
  Type("multipart").
  SendFile("./example_file.ext").
  End()

File can also be a []byte slice of a already file read by eg. ioutil.ReadFile: 

b, _ := ioutil.ReadFile("./example_file.ext")
gorequest.New().
  Post("http://example.com").
  Type("multipart").
  SendFile(b).
  End()

Furthermore file can also be a os.File: 

f, _ := os.Open("./example_file.ext")
gorequest.New().
  Post("http://example.com").
  Type("multipart").
  SendFile(f).
  End()

The first optional argument (second argument overall) is the filename, which will be automatically determined when file is a string (path) or a os.File. When file is a []byte slice, filename defaults to "filename". In all cases the automatically determined filename can be overwritten: 

b, _ := ioutil.ReadFile("./example_file.ext")
gorequest.New().
  Post("http://example.com").
  Type("multipart").
  SendFile(b, "my_custom_filename").
  End()

The second optional argument (third argument overall) is the fieldname in the multipart/form-data request. It defaults to fileNUMBER (eg. file1), where number is ascending and starts counting at 1. So if you send multiple files, the fieldnames will be file1, file2, ... unless it is overwritten. If fieldname is set to "file" it will be automatically set to fileNUMBER, where number is the greatest exsiting number+1. 

b, _ := ioutil.ReadFile("./example_file.ext")
gorequest.New().
  Post("http://example.com").
  Type("multipart").
  SendFile(b, "", "my_custom_fieldname"). // filename left blank, will become "example_file.ext"
  End()

大文件建议传os.File进来

func (*HttpAgent) SendParam 

func (s *HttpAgent) SendParam(key string, value interface{}) *HttpAgent

func (*HttpAgent) SendString 

func (s *HttpAgent) SendString(content string) *HttpAgent

SendString returns HttpAgent's itself for any next chain and takes content string as a parameter. Its duty is to transform String into s.Data (map[string]interface{}) which later changes into appropriate format such as json, form, text, etc. in the End func. Send implicitly uses SendString and you should use Send instead of this.

func (*HttpAgent) Set 

func (s *HttpAgent) Set(param string, value string) *HttpAgent

Set is used for setting header fields. Example. To set `Accept` as `application/json` 

gohttp.New().
  Post("/gamelist").
  Set("Accept", "application/json").
  End()

func (*HttpAgent) String 

func (s *HttpAgent) String(status ...int) (string, int, error)

func (*HttpAgent) TLSClientConfig 

func (s *HttpAgent) TLSClientConfig(config *tls.Config) *HttpAgent

Set TLSClientConfig for underling Transport. One example is you can use it to disable security check (https): 

gohttp.New().TLSClientConfig(&tls.Config{ InsecureSkipVerify: true}).
	Get("https://disable-security-check.com").
	End()

func (*HttpAgent) Timeout 

func (s *HttpAgent) Timeout(timeout time.Duration) *HttpAgent

func (*HttpAgent) ToJSON 

func (s *HttpAgent) ToJSON(v interface{}, status ...int) (int, error)

func (*HttpAgent) ToXML 

func (s *HttpAgent) ToXML(v interface{}, status ...int) (int, error)

func (*HttpAgent) Type 

func (s *HttpAgent) Type(typeStr string) *HttpAgent

Type is a convenience function to specify the data type to send. For example, to send data as `application/x-www-form-urlencoded` : 

gohttp.New().
  Post("/recipe").
  Type("form").
  Send(`{ name: "egg benedict", category: "brunch" }`).
  End()

This will POST the body "name=egg benedict&category=brunch" to url /recipe

gohttp supports 

"text/html" uses "html"
"application/json" uses "json"
"application/xml" uses "xml"
"application/x-www-form-urlencoded" uses "urlencoded", "form" or "form-data"

type IpRollClient 

type IpRollClient struct {
	// contains filtered or unexported fields
}

func NewIpRollClient 

func NewIpRollClient(ip ...string) *IpRollClient

func (*IpRollClient) GetHttpClient 

func (s *IpRollClient) GetHttpClient(urlStr string, proxy string, usejar bool) (*http.Client, error)

func (*IpRollClient) ResetCookie 

func (s *IpRollClient) ResetCookie(uri *url.URL)

type MultipartStreamer 

type MultipartStreamer struct {
	ContentType string
	// contains filtered or unexported fields
}

func NewMultiPartStreamer 

func NewMultiPartStreamer() (m *MultipartStreamer)

New initializes a new MultipartStreamer.

func (*MultipartStreamer) Boundary 

func (m *MultipartStreamer) Boundary() string

func (*MultipartStreamer) GetReader 

func (m *MultipartStreamer) GetReader() io.ReadCloser

GetReader gets an io.ReadCloser for passing to an http.Request.

func (*MultipartStreamer) Len 

func (m *MultipartStreamer) Len() int64

Len calculates the byte size of the multipart content.

func (*MultipartStreamer) SetupRequest 

func (m *MultipartStreamer) SetupRequest(req *http.Request)

SetupRequest sets up the http.Request body, and some crucial HTTP headers.

func (*MultipartStreamer) WriteFields 

func (m *MultipartStreamer) WriteFields(fields url.Values) error

WriteFields writes multiple form fields to the multipart.Writer.

func (*MultipartStreamer) WriteFile 

func (m *MultipartStreamer) WriteFile(key, filename string) error

WriteFile is a shortcut for adding a local file as an io.Reader.

func (*MultipartStreamer) WriteReader 

func (m *MultipartStreamer) WriteReader(f File) (err error)

WriteReader adds an io.Reader to get the content of a file. The reader is not accessed until the multipart.Reader is copied to some output writer. func (m *MultipartStreamer) WriteReader(key, filename string, size int64, reader io.Reader, ctype string) (err error) {

type Option 

type Option struct {
	Address         []string
	ConnectTimeout  time.Duration
	TLSTimeout      time.Duration
	Timeout         time.Duration
	Agent           string
	Delay           time.Duration
	MaxRedirects    int
	MaxIdleConns    int
	MaxConnsPerHost int
	Http2           bool
}

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