client

package
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 Go to latest Published: Jun 25, 2021 License: MIT Imports: 31 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	TypeJSON       = "json"
	TypeXML        = "xml"
	TypeUrlencoded = "urlencoded"
	TypeForm       = "form"
	TypeFormData   = "form-data"
	TypeHTML       = "html"
	TypeText       = "text"
	TypeMultipart  = "multipart"
)

Types we support.

Variables

View Source 
var DisableTransportSwap = false
View Source 
var Types = map[string]string{
	TypeJSON:       httpi.ContentJSONHeaderValue,
	TypeXML:        httpi.ContentXMLHeaderValue,
	TypeForm:       httpi.ContentFormHeaderValue,
	TypeFormData:   httpi.ContentFormHeaderValue,
	TypeUrlencoded: httpi.ContentFormHeaderValue,
	TypeHTML:       httpi.ContentHTMLHeaderValue,
	TypeText:       httpi.ContentTextHeaderValue,
	TypeMultipart:  httpi.ContentFormMultipartHeaderValue,
}

Functions

func CommonResponse 

func CommonResponse(response interface{}) interface{}

func SetTimeout 

func SetTimeout(timeout time.Duration)

Types

type ContentType 

type ContentType uint8
const (
	ContentTypeJson ContentType = iota
	ContentTypeForm ContentType = iota
)

type CurlCommand 

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

CurlCommand contains exec.Command compatible slice + helpers

func GetCurlCommand 

func GetCurlCommand(req *http.Request) (*CurlCommand, error)

GetCurlCommand returns a CurlCommand corresponding to an http.Request

func (*CurlCommand) String 

func (c *CurlCommand) String() string

String returns a ready to copy/paste command

type File 

type File struct {
	Filename  string
	Fieldname string
	Data      []byte
}

type LogCallback 

type LogCallback func(url, method, auth, reqBody, respBytes string, status int, process time.Duration)

type Logger 

type Logger interface {
	SetPrefix(string)
	Printf(format string, v ...interface{})
	Println(v ...interface{})
}

type Pair 

type Pair struct {
	K, V string
}

type Request 

type Request *http.Request

type RequestParams 

type RequestParams struct {
	AuthUser, AuthPass string
	ContentType        ContentType
	Param              interface{}
	Header             []Pair
	// contains filtered or unexported fields
}

RequestParams ...

func NewRequest 

func NewRequest(url, method string, param interface{}) *RequestParams

func (*RequestParams) HTTPRequest 

func (req *RequestParams) HTTPRequest(response interface{}) error

HTTPRequest create a HTTP request

func (*RequestParams) SetContentType 

func (req *RequestParams) SetContentType(contentType ContentType) *RequestParams

func (*RequestParams) SetHeader 

func (req *RequestParams) SetHeader(k, v string) *RequestParams

func (*RequestParams) SetLogger 

func (req *RequestParams) SetLogger(logger LogCallback) *RequestParams

func (*RequestParams) SetTimeout 

func (req *RequestParams) SetTimeout(timeout time.Duration) *RequestParams

type ResponseBody 

type ResponseBody struct {
	Status int         `json:"status"`
	Data   interface{} `json:"data"`
	Msg    string      `json:"msg"`
}

func (*ResponseBody) CheckError 

func (res *ResponseBody) CheckError() error

type SuperAgent 

type SuperAgent struct {
	Url               string
	Method            string
	Header            http.Header
	TargetType        string
	ForceType         string
	Data              map[string]interface{}
	SliceData         []interface{}
	FormData          url.Values
	QueryData         url.Values
	FileData          []File
	BounceToRawString bool
	RawString         string
	Client            *http.Client
	Transport         *http.Transport
	Cookies           []*http.Cookie
	Errors            []error
	BasicAuth         struct{ Username, Password string }
	Debug             bool
	CurlCommand       bool

	Retryable            superAgentRetryable
	DoNotClearSuperAgent bool
	// contains filtered or unexported fields
}

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

func New 

func New() *SuperAgent

Used to create a new SuperAgent object.

func (*SuperAgent) AddCookie 

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

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

func (*SuperAgent) AddCookies 

func (s *SuperAgent) AddCookies(cookies []*http.Cookie) *SuperAgent

AddCookies is a convenient method to add multiple cookies

func (*SuperAgent) AppendHeader 

func (s *SuperAgent) AppendHeader(param string, value string) *SuperAgent

AppendHeader is used for setting header fileds with multiple values, Example. To set `Accept` as `application/json, text/plain` 

gorequest.New().
  Post("/gamelist").
  AppendHeader("Accept", "application/json").
  AppendHeader("Accept", "text/plain").
  End()

func (*SuperAgent) AsCurlCommand 

func (s *SuperAgent) AsCurlCommand() (string, error)

AsCurlCommand returns a string representing the runnable `curl' command version of the request.

func (*SuperAgent) ClearSuperAgent 

func (s *SuperAgent) ClearSuperAgent()

Reset SuperAgent data for another new request.

func (*SuperAgent) Clone 

func (s *SuperAgent) Clone() *SuperAgent

Returns a copy of this superagent. Useful if you want to reuse the client/settings concurrently. Note: This does a shallow copy of the parent. So you will need to be careful of Data provided Note: It also directly re-uses the client and transport. If you modify the Timeout, or RedirectPolicy on a clone, the clone will have a new http.client. It is recommended that the base request set your timeout and redirect polices, and no modification of the client or transport happen after cloning. Note: DoNotClearSuperAgent is forced to "true" after Clone

func (*SuperAgent) CustomMethod 

func (s *SuperAgent) CustomMethod(method, targetUrl string) *SuperAgent

Just a wrapper to initialize SuperAgent instance by method string

func (*SuperAgent) Delete 

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

func (*SuperAgent) End 

func (s *SuperAgent) End(callback ...func(response *http.Response, body string, errs []error)) (*http.Response, string, []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 worth noticing, error array (NOTE: not just single error value) is returned as a 3rd value and nil otherwise.

For example: 

resp, body, errs := gorequest.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 GoRequest fun and clean! You can use GoRequest in whatever style you love!

For example: 

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

func (*SuperAgent) EndBytes 

func (s *SuperAgent) EndBytes(callback ...func(response *http.Response, body []byte, errs []error)) (*http.Response, []byte, []error)

EndBytes should be used when you want the body as bytes. The callbacks work the same way as with `End`, except that a byte array is used instead of a string.

func (*SuperAgent) EndStruct 

func (s *SuperAgent) EndStruct(v interface{}, callback ...func(response *http.Response, v interface{}, body []byte, errs []error)) (*http.Response, []byte, []error)

EndStruct should be used when you want the body as a struct. The callbacks work the same way as with `End`, except that a struct is used instead of a string.

func (*SuperAgent) Get 

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

func (*SuperAgent) Head 

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

func (*SuperAgent) MakeRequest 

func (s *SuperAgent) MakeRequest() (*http.Request, error)

func (*SuperAgent) Options 

func (s *SuperAgent) Options(targetUrl string) *SuperAgent

func (*SuperAgent) Param 

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

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 (*SuperAgent) Patch 

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

func (*SuperAgent) Post 

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

func (*SuperAgent) Proxy 

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

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 GoRequest's Proxy: 

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

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

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

func (*SuperAgent) Put 

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

func (*SuperAgent) Query 

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

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: 

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

Or you can put multiple json values: 

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

Strings are also acceptable: 

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

Or even Mixed! :) 

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

func (*SuperAgent) RedirectPolicy 

func (s *SuperAgent) RedirectPolicy(policy func(req Request, via []Request) error) *SuperAgent

RedirectPolicy accepts a function to define how to handle redirects. If the policy function returns an error, the next Request is not made and the previous request is returned.

The policy function's arguments are the Request about to be made and the past requests in order of oldest first.

func (*SuperAgent) Retry 

func (s *SuperAgent) Retry(retryerCount int, retryerTime time.Duration, statusCode ...int) *SuperAgent

gorequest.New(). 

Post("/gamelist").
Retry(3, 5 * time.seconds, http.StatusBadRequest, http.StatusInternalServerError).
End()

func (*SuperAgent) Send 

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

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: 

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

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

gorequest.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: 

gorequest.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" }
gorequest.New().
  Post("/update_version").
  Send(ver).
  Send(`{"Safari":"5.1.10"}`).
  End()

If you have set Type to text or Content-Type to text/plain, content will be sent as raw string in body instead of form 

gorequest.New().
  Post("/greet").
  Type("text").
  Send("hello world").
  End()

func (*SuperAgent) SendFile 

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

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 unless a third argument skipFileNumbering is provided and true. 

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()

func (*SuperAgent) SendMap 

func (s *SuperAgent) SendMap(content interface{}) *SuperAgent

func (*SuperAgent) SendSlice 

func (s *SuperAgent) SendSlice(content []interface{}) *SuperAgent

SendSlice (similar to SendString) returns SuperAgent's itself for any next chain and takes content []interface{} as a parameter. Its duty is to append slice of interface{} into s.SliceData ([]interface{}) which later changes into json array in the End() func.

func (*SuperAgent) SendString 

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

SendString returns SuperAgent'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 (*SuperAgent) SendStruct 

func (s *SuperAgent) SendStruct(content interface{}) *SuperAgent

SendStruct (similar to SendString) returns SuperAgent's itself for any next chain and takes content interface{} as a parameter. Its duty is to transfrom interface{} (implicitly always a struct) into s.Data (map[string]interface{}) which later changes into appropriate format such as json, form, text, etc. in the End() func.

func (*SuperAgent) SetBasicAuth 

func (s *SuperAgent) SetBasicAuth(username string, password string) *SuperAgent

SetBasicAuth sets the basic authentication header Example. To set the header for username "myuser" and password "mypass" 

gorequest.New()
  Post("/gamelist").
  SetBasicAuth("myuser", "mypass").
  End()

func (*SuperAgent) SetCurlCommand 

func (s *SuperAgent) SetCurlCommand(enable bool) *SuperAgent

Enable the curlcommand mode which display a CURL command line

func (*SuperAgent) SetDebug 

func (s *SuperAgent) SetDebug(enable bool) *SuperAgent

Enable the debug mode which logs request/response detail

func (*SuperAgent) SetDoNotClearSuperAgent 

func (s *SuperAgent) SetDoNotClearSuperAgent(enable bool) *SuperAgent

Enable the DoNotClear mode for not clearing super agent and reuse for the next request

func (*SuperAgent) SetHeader 

func (s *SuperAgent) SetHeader(param string, value string) *SuperAgent

Set is used for setting header fields, this will overwrite the existed values of Header through AppendHeader(). Example. To set `Accept` as `application/json` 

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

func (*SuperAgent) SetLogger 

func (s *SuperAgent) SetLogger(logger Logger) *SuperAgent

func (*SuperAgent) TLSClientConfig 

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

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

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

func (*SuperAgent) Timeout 

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

func (*SuperAgent) Type 

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

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

gorequest.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

GoRequest supports 

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

Source Files

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