const ( // MethodGet HTTP method MethodGet = "GET" // MethodPost HTTP method MethodPost = "POST" // MethodPut HTTP method MethodPut = "PUT" // MethodDelete HTTP method MethodDelete = "DELETE" // MethodPatch HTTP method MethodPatch = "PATCH" // MethodHead HTTP method MethodHead = "HEAD" // MethodOptions HTTP method MethodOptions = "OPTIONS" )
Version # of resty
const Version = "2.7.0"
func Backoff(operation func() (*Response, error), options ...Option) error
Backoff retries with increasing timeout duration up until X amount of retries (Default is 3 attempts, Override with option Retries(n))
func DetectContentType(body interface{}) string
DetectContentType method is used to figure out `Request.Body` content type for request header
func IsJSONType(ct string) bool
IsJSONType method is to check JSON content type or not
func IsStringEmpty(str string) bool
IsStringEmpty method tells whether given string is empty or not
func IsXMLType(ct string) bool
IsXMLType method is to check XML content type or not
func Unmarshalc(c *Client, ct string, b []byte, d interface{}) (err error)
Unmarshalc content into object from JSON or XML
Client struct is used to create Resty client with client level settings, these settings are applicable to all the request raised from the client.
Resty also provides an options to override most of the client settings at request level.
type Client struct { BaseURL string HostURL string // Deprecated: use BaseURL instead. To be removed in v3.0.0 release. QueryParam url.Values FormData url.Values PathParams map[string]string Header http.Header UserInfo *User Token string AuthScheme string Cookies []*http.Cookie Error reflect.Type Debug bool DisableWarn bool AllowGetMethodPayload bool RetryCount int RetryWaitTime time.Duration RetryMaxWaitTime time.Duration RetryConditions []RetryConditionFunc RetryHooks []OnRetryFunc RetryAfter RetryAfterFunc JSONMarshal func(v interface{}) ([]byte, error) JSONUnmarshal func(data []byte, v interface{}) error XMLMarshal func(v interface{}) ([]byte, error) XMLUnmarshal func(data []byte, v interface{}) error // HeaderAuthorizationKey is used to set/access Request Authorization header // value when `SetAuthToken` option is used. HeaderAuthorizationKey string // contains filtered or unexported fields }
func New() *Client
New method creates a new Resty client.
▹ Example
func NewWithClient(hc *http.Client) *Client
NewWithClient method creates a new Resty client with given `http.Client`.
func NewWithLocalAddr(localAddr net.Addr) *Client
NewWithLocalAddr method creates a new Resty client with given Local Address to dial from.
func (c *Client) AddRetryAfterErrorCondition() *Client
AddRetryAfterErrorCondition adds the basic condition of retrying after encountering an error from the http response
Since v2.6.0
func (c *Client) AddRetryCondition(condition RetryConditionFunc) *Client
AddRetryCondition method adds a retry condition function to array of functions that are checked to determine if the request is retried. The request will retry if any of the functions return true and error is nil.
Note: These retry conditions are applied on all Request made using this Client. For Request specific retry conditions check *Request.AddRetryCondition
func (c *Client) AddRetryHook(hook OnRetryFunc) *Client
AddRetryHook adds a side-effecting retry hook to an array of hooks that will be executed on each retry.
Since v2.6.0
func (c *Client) DisableTrace() *Client
DisableTrace method disables the Resty client trace. Refer to `Client.EnableTrace`.
Since v2.0.0
func (c *Client) EnableTrace() *Client
EnableTrace method enables the Resty client trace for the requests fired from the client using `httptrace.ClientTrace` and provides insights.
client := resty.New().EnableTrace() resp, err := client.R().Get("https://httpbin.org/get") fmt.Println("Error:", err) fmt.Println("Trace Info:", resp.Request.TraceInfo())
Also `Request.EnableTrace` available too to get trace info for single request.
Since v2.0.0
func (c *Client) GetClient() *http.Client
GetClient method returns the current `http.Client` used by the resty client.
func (c *Client) IsProxySet() bool
IsProxySet method returns the true is proxy is set from resty client otherwise false. By default proxy is set from environment, refer to `http.ProxyFromEnvironment`.
func (c *Client) NewRequest() *Request
NewRequest is an alias for method `R()`. Creates a new request instance, its used for Get, Post, Put, Delete, Patch, Head, Options, etc.
func (c *Client) OnAfterResponse(m ResponseMiddleware) *Client
OnAfterResponse method appends response middleware into the after response chain. Once we receive response from host server, default Resty response middleware gets applied and then user assigened response middlewares applied.
client.OnAfterResponse(func(c *resty.Client, r *resty.Response) error { // Now you have access to Client and Response instance // manipulate it as per your need return nil // if its success otherwise return error })
func (c *Client) OnBeforeRequest(m RequestMiddleware) *Client
OnBeforeRequest method appends request middleware into the before request chain. Its gets applied after default Resty request middlewares and before request been sent from Resty to host server.
client.OnBeforeRequest(func(c *resty.Client, r *resty.Request) error { // Now you have access to Client and Request instance // manipulate it as per your need return nil // if its success otherwise return error })
func (c *Client) OnError(h ErrorHook) *Client
OnError method adds a callback that will be run whenever a request execution fails. This is called after all retries have been attempted (if any). If there was a response from the server, the error will be wrapped in *ResponseError which has the last response received from the server.
client.OnError(func(req *resty.Request, err error) { if v, ok := err.(*resty.ResponseError); ok { // Do something with v.Response } // Log the error, increment a metric, etc... })
func (c *Client) OnRequestLog(rl RequestLogCallback) *Client
OnRequestLog method used to set request log callback into Resty. Registered callback gets called before the resty actually logs the information.
func (c *Client) OnResponseLog(rl ResponseLogCallback) *Client
OnResponseLog method used to set response log callback into Resty. Registered callback gets called before the resty actually logs the information.
func (c *Client) R() *Request
R method creates a new request instance, its used for Get, Post, Put, Delete, Patch, Head, Options, etc.
func (c *Client) RemoveProxy() *Client
RemoveProxy method removes the proxy configuration from Resty client
client.RemoveProxy()
func (c *Client) SetAllowGetMethodPayload(a bool) *Client
SetAllowGetMethodPayload method allows the GET method with payload on Resty client.
For Example: Resty allows the user sends request with a payload on HTTP GET method.
client.SetAllowGetMethodPayload(true)
func (c *Client) SetAuthScheme(scheme string) *Client
SetAuthScheme method sets the auth scheme type in the HTTP request. For Example:
Authorization: <auth-scheme-value> <auth-token-value>
For Example: To set the scheme to use OAuth
client.SetAuthScheme("OAuth")
This auth scheme gets added to all the requests rasied from this client instance. Also it can be overridden or set one at the request level is supported.
Information about auth schemes can be found in RFC7235 which is linked to below along with the page containing the currently defined official authentication schemes:
https://tools.ietf.org/html/rfc7235 https://www.iana.org/assignments/http-authschemes/http-authschemes.xhtml#authschemes
See `Request.SetAuthToken`.
func (c *Client) SetAuthToken(token string) *Client
SetAuthToken method sets the auth token of the `Authorization` header for all HTTP requests. The default auth scheme is `Bearer`, it can be customized with the method `SetAuthScheme`. For Example:
Authorization: <auth-scheme> <auth-token-value>
For Example: To set auth token BC594900518B4F7EAC75BD37F019E08FBC594900518B4F7EAC75BD37F019E08F
client.SetAuthToken("BC594900518B4F7EAC75BD37F019E08FBC594900518B4F7EAC75BD37F019E08F")
This auth token gets added to all the requests rasied from this client instance. Also it can be overridden or set one at the request level is supported.
See `Request.SetAuthToken`.
func (c *Client) SetBaseURL(url string) *Client
SetBaseURL method is to set Base URL in the client instance. It will be used with request raised from this client with relative URL
// Setting HTTP address client.SetBaseURL("http://myjeeva.com") // Setting HTTPS address client.SetBaseURL("https://myjeeva.com")
Since v2.7.0
func (c *Client) SetBasicAuth(username, password string) *Client
SetBasicAuth method sets the basic authentication header in the HTTP request. For Example:
Authorization: Basic <base64-encoded-value>
For Example: To set the header for username "go-resty" and password "welcome"
client.SetBasicAuth("go-resty", "welcome")
This basic auth information gets added to all the request rasied from this client instance. Also it can be overridden or set one at the request level is supported.
See `Request.SetBasicAuth`.
func (c *Client) SetCertificates(certs ...tls.Certificate) *Client
SetCertificates method helps to set client certificates into Resty conveniently.
▹ Example
func (c *Client) SetCloseConnection(close bool) *Client
SetCloseConnection method sets variable `Close` in http request struct with the given value. More info: https://golang.org/src/net/http/request.go
func (c *Client) SetContentLength(l bool) *Client
SetContentLength method enables the HTTP header `Content-Length` value for every request. By default Resty won't set `Content-Length`.
client.SetContentLength(true)
Also you have an option to enable for particular request. See `Request.SetContentLength`
func (c *Client) SetCookie(hc *http.Cookie) *Client
SetCookie method appends a single cookie in the client instance. These cookies will be added to all the request raised from this client instance.
client.SetCookie(&http.Cookie{ Name:"go-resty", Value:"This is cookie value", })
func (c *Client) SetCookieJar(jar http.CookieJar) *Client
SetCookieJar method sets custom http.CookieJar in the resty client. Its way to override default.
For Example: sometimes we don't want to save cookies in api contacting, we can remove the default CookieJar in resty client.
client.SetCookieJar(nil)
func (c *Client) SetCookies(cs []*http.Cookie) *Client
SetCookies method sets an array of cookies in the client instance. These cookies will be added to all the request raised from this client instance.
cookies := []*http.Cookie{ &http.Cookie{ Name:"go-resty-1", Value:"This is cookie 1 value", }, &http.Cookie{ Name:"go-resty-2", Value:"This is cookie 2 value", }, } // Setting a cookies into resty client.SetCookies(cookies)
func (c *Client) SetDebug(d bool) *Client
SetDebug method enables the debug mode on Resty client. Client logs details of every request and response. For `Request` it logs information such as HTTP verb, Relative URL path, Host, Headers, Body if it has one. For `Response` it logs information such as Status, Response Time, Headers, Body if it has one.
client.SetDebug(true)
func (c *Client) SetDebugBodyLimit(sl int64) *Client
SetDebugBodyLimit sets the maximum size for which the response and request body will be logged in debug mode.
client.SetDebugBodyLimit(1000000)
func (c *Client) SetDisableWarn(d bool) *Client
SetDisableWarn method disables the warning message on Resty client.
For Example: Resty warns the user when BasicAuth used on non-TLS mode.
client.SetDisableWarn(true)
func (c *Client) SetDoNotParseResponse(parse bool) *Client
SetDoNotParseResponse method instructs `Resty` not to parse the response body automatically. Resty exposes the raw response body as `io.ReadCloser`. Also do not forget to close the body, otherwise you might get into connection leaks, no connection reuse.
Note: Response middlewares are not applicable, if you use this option. Basically you have taken over the control of response parsing from `Resty`.
func (c *Client) SetError(err interface{}) *Client
SetError method is to register the global or client common `Error` object into Resty. It is used for automatic unmarshalling if response status code is greater than 399 and content type either JSON or XML. Can be pointer or non-pointer.
client.SetError(&Error{}) // OR client.SetError(Error{})
func (c *Client) SetFormData(data map[string]string) *Client
SetFormData method sets Form parameters and their values in the client instance. It's applicable only HTTP method `POST` and `PUT` and requets content type would be set as `application/x-www-form-urlencoded`. These form data will be added to all the request raised from this client instance. Also it can be overridden at request level form data.
See `Request.SetFormData`.
client.SetFormData(map[string]string{ "access_token": "BC594900-518B-4F7E-AC75-BD37F019E08F", "user_id": "3455454545", })
func (c *Client) SetHeader(header, value string) *Client
SetHeader method sets a single header field and its value in the client instance. These headers will be applied to all requests raised from this client instance. Also it can be overridden at request level header options.
See `Request.SetHeader` or `Request.SetHeaders`.
For Example: To set `Content-Type` and `Accept` as `application/json`
client. SetHeader("Content-Type", "application/json"). SetHeader("Accept", "application/json")
func (c *Client) SetHeaderVerbatim(header, value string) *Client
SetHeaderVerbatim method is to set a single header field and its value verbatim in the current request.
For Example: To set `all_lowercase` and `UPPERCASE` as `available`.
client.R(). SetHeaderVerbatim("all_lowercase", "available"). SetHeaderVerbatim("UPPERCASE", "available")
Also you can override header value, which was set at client instance level.
Since v2.6.0
func (c *Client) SetHeaders(headers map[string]string) *Client
SetHeaders method sets multiple headers field and its values at one go in the client instance. These headers will be applied to all requests raised from this client instance. Also it can be overridden at request level headers options.
See `Request.SetHeaders` or `Request.SetHeader`.
For Example: To set `Content-Type` and `Accept` as `application/json`
client.SetHeaders(map[string]string{ "Content-Type": "application/json", "Accept": "application/json", })
func (c *Client) SetHostURL(url string) *Client
SetHostURL method is to set Host URL in the client instance. It will be used with request raised from this client with relative URL
// Setting HTTP address client.SetHostURL("http://myjeeva.com") // Setting HTTPS address client.SetHostURL("https://myjeeva.com")
Deprecated: use SetBaseURL instead. To be removed in v3.0.0 release.
func (c *Client) SetJSONEscapeHTML(b bool) *Client
SetJSONEscapeHTML method is to enable/disable the HTML escape on JSON marshal.
Note: This option only applicable to standard JSON Marshaller.
func (c *Client) SetLogger(l Logger) *Client
SetLogger method sets given writer for logging Resty request and response details.
Compliant to interface `resty.Logger`.
func (c *Client) SetOutputDirectory(dirPath string) *Client
SetOutputDirectory method sets output directory for saving HTTP response into file. If the output directory not exists then resty creates one. This setting is optional one, if you're planning using absolute path in `Request.SetOutput` and can used together.
client.SetOutputDirectory("/save/http/response/here")
func (c *Client) SetPathParam(param, value string) *Client
SetPathParam method sets single URL path key-value pair in the Resty client instance.
client.SetPathParam("userId", "sample@sample.com") Result: URL - /v1/users/{userId}/details Composed URL - /v1/users/sample@sample.com/details
It replaces the value of the key while composing the request URL.
Also it can be overridden at request level Path Params options, see `Request.SetPathParam` or `Request.SetPathParams`.
func (c *Client) SetPathParams(params map[string]string) *Client
SetPathParams method sets multiple URL path key-value pairs at one go in the Resty client instance.
client.SetPathParams(map[string]string{ "userId": "sample@sample.com", "subAccountId": "100002", }) Result: URL - /v1/users/{userId}/{subAccountId}/details Composed URL - /v1/users/sample@sample.com/100002/details
It replaces the value of the key while composing the request URL.
Also it can be overridden at request level Path Params options, see `Request.SetPathParam` or `Request.SetPathParams`.
func (c *Client) SetPreRequestHook(h PreRequestHook) *Client
SetPreRequestHook method sets the given pre-request function into resty client. It is called right before the request is fired.
Note: Only one pre-request hook can be registered. Use `client.OnBeforeRequest` for mutilple.
func (c *Client) SetProxy(proxyURL string) *Client
SetProxy method sets the Proxy URL and Port for Resty client.
client.SetProxy("http://proxyserver:8888")
OR Without this `SetProxy` method, you could also set Proxy via environment variable.
Refer to godoc `http.ProxyFromEnvironment`.
func (c *Client) SetQueryParam(param, value string) *Client
SetQueryParam method sets single parameter and its value in the client instance. It will be formed as query string for the request.
For Example: `search=kitchen%20papers&size=large` in the URL after `?` mark. These query params will be added to all the request raised from this client instance. Also it can be overridden at request level Query Param options.
See `Request.SetQueryParam` or `Request.SetQueryParams`.
client. SetQueryParam("search", "kitchen papers"). SetQueryParam("size", "large")
func (c *Client) SetQueryParams(params map[string]string) *Client
SetQueryParams method sets multiple parameters and their values at one go in the client instance. It will be formed as query string for the request.
For Example: `search=kitchen%20papers&size=large` in the URL after `?` mark. These query params will be added to all the request raised from this client instance. Also it can be overridden at request level Query Param options.
See `Request.SetQueryParams` or `Request.SetQueryParam`.
client.SetQueryParams(map[string]string{ "search": "kitchen papers", "size": "large", })
func (c *Client) SetRedirectPolicy(policies ...interface{}) *Client
SetRedirectPolicy method sets the client redirect poilicy. Resty provides ready to use redirect policies. Wanna create one for yourself refer to `redirect.go`.
client.SetRedirectPolicy(FlexibleRedirectPolicy(20)) // Need multiple redirect policies together client.SetRedirectPolicy(FlexibleRedirectPolicy(20), DomainCheckRedirectPolicy("host1.com", "host2.net"))
func (c *Client) SetRetryAfter(callback RetryAfterFunc) *Client
SetRetryAfter sets callback to calculate wait time between retries. Default (nil) implies exponential backoff with jitter
func (c *Client) SetRetryCount(count int) *Client
SetRetryCount method enables retry on Resty client and allows you to set no. of retry count. Resty uses a Backoff mechanism.
func (c *Client) SetRetryMaxWaitTime(maxWaitTime time.Duration) *Client
SetRetryMaxWaitTime method sets max wait time to sleep before retrying request.
Default is 2 seconds.
func (c *Client) SetRetryWaitTime(waitTime time.Duration) *Client
SetRetryWaitTime method sets default wait time to sleep before retrying request.
Default is 100 milliseconds.
func (c *Client) SetRootCertificate(pemFilePath string) *Client
SetRootCertificate method helps to add one or more root certificates into Resty client
client.SetRootCertificate("/path/to/root/pemFile.pem")
func (c *Client) SetRootCertificateFromString(pemContent string) *Client
SetRootCertificateFromString method helps to add one or more root certificates into Resty client
client.SetRootCertificateFromString("pem file content")
func (c *Client) SetScheme(scheme string) *Client
SetScheme method sets custom scheme in the Resty client. It's way to override default.
client.SetScheme("http")
func (c *Client) SetTLSClientConfig(config *tls.Config) *Client
SetTLSClientConfig method sets TLSClientConfig for underling client Transport.
For Example:
// One can set custom root-certificate. Refer: http://golang.org/pkg/crypto/tls/#example_Dial client.SetTLSClientConfig(&tls.Config{ RootCAs: roots }) // or One can disable security check (https) client.SetTLSClientConfig(&tls.Config{ InsecureSkipVerify: true })
Note: This method overwrites existing `TLSClientConfig`.
func (c *Client) SetTimeout(timeout time.Duration) *Client
SetTimeout method sets timeout for request raised from client.
client.SetTimeout(time.Duration(1 * time.Minute))
func (c *Client) SetTransport(transport http.RoundTripper) *Client
SetTransport method sets custom `*http.Transport` or any `http.RoundTripper` compatible interface implementation in the resty client.
Note:
- If transport is not type of `*http.Transport` then you may not be able to take advantage of some of the Resty client settings.
- It overwrites the Resty client transport instance and it's configurations.
transport := &http.Transport{ // somthing like Proxying to httptest.Server, etc... Proxy: func(req *http.Request) (*url.URL, error) { return url.Parse(server.URL) }, } client.SetTransport(transport)
ErrorHook type is for reacting to request errors, called after all retries were attempted
type ErrorHook func(*Request, error)
File struct represent file information for multipart request
type File struct { Name string ParamName string io.Reader }
func (f *File) String() string
String returns string value of current file details
Logger interface is to abstract the logging from Resty. Gives control to the Resty users, choice of the logger.
type Logger interface { Errorf(format string, v ...interface{}) Warnf(format string, v ...interface{}) Debugf(format string, v ...interface{}) }
MultipartField struct represent custom data part for multipart request
type MultipartField struct { Param string FileName string ContentType string io.Reader }
OnRetryFunc is for side-effecting functions triggered on retry
type OnRetryFunc func(*Response, error)
Option is to create convenient retry options like wait time, max retries, etc.
type Option func(*Options)
func MaxWaitTime(value time.Duration) Option
MaxWaitTime sets the max wait time to sleep between requests
func Retries(value int) Option
Retries sets the max number of retries
func RetryConditions(conditions []RetryConditionFunc) Option
RetryConditions sets the conditions that will be checked for retry.
func RetryHooks(hooks []OnRetryFunc) Option
RetryHooks sets the hooks that will be executed after each retry
func WaitTime(value time.Duration) Option
WaitTime sets the default wait time to sleep between requests
Options struct is used to hold retry settings.
type Options struct {
// contains filtered or unexported fields
}
PreRequestHook type is for the request hook, called right before the request is sent
type PreRequestHook func(*Client, *http.Request) error
RedirectPolicy to regulate the redirects in the resty client. Objects implementing the RedirectPolicy interface can be registered as
Apply function should return nil to continue the redirect jounery, otherwise return error to stop the redirect.
type RedirectPolicy interface { Apply(req *http.Request, via []*http.Request) error }
func DomainCheckRedirectPolicy(hostnames ...string) RedirectPolicy
DomainCheckRedirectPolicy is convenient method to define domain name redirect rule in resty client. Redirect is allowed for only mentioned host in the policy.
resty.SetRedirectPolicy(DomainCheckRedirectPolicy("host1.com", "host2.org", "host3.net"))
func FlexibleRedirectPolicy(noOfRedirect int) RedirectPolicy
FlexibleRedirectPolicy is convenient method to create No of redirect policy for HTTP client.
resty.SetRedirectPolicy(FlexibleRedirectPolicy(20))
func NoRedirectPolicy() RedirectPolicy
NoRedirectPolicy is used to disable redirects in the HTTP client
resty.SetRedirectPolicy(NoRedirectPolicy())
The RedirectPolicyFunc type is an adapter to allow the use of ordinary functions as RedirectPolicy. If f is a function with the appropriate signature, RedirectPolicyFunc(f) is a RedirectPolicy object that calls f.
type RedirectPolicyFunc func(*http.Request, []*http.Request) error
func (f RedirectPolicyFunc) Apply(req *http.Request, via []*http.Request) error
Apply calls f(req, via).
Request struct is used to compose and fire individual request from resty client. Request provides an options to override client level settings and also an options for the request composition.
type Request struct { URL string Method string Token string AuthScheme string QueryParam url.Values FormData url.Values PathParams map[string]string Header http.Header Time time.Time Body interface{} Result interface{} Error interface{} RawRequest *http.Request SRV *SRVRecord UserInfo *User Cookies []*http.Cookie // Attempt is to represent the request attempt made during a Resty // request execution flow, including retry count. // // Since v2.4.0 Attempt int // contains filtered or unexported fields }
func (r *Request) AddRetryCondition(condition RetryConditionFunc) *Request
AddRetryCondition method adds a retry condition function to the request's array of functions that are checked to determine if the request is retried. The request will retry if any of the functions return true and error is nil.
Note: These retry conditions are checked before all retry conditions of the client.
Since v2.7.0
func (r *Request) Context() context.Context
Context method returns the Context if its already set in request otherwise it creates new one using `context.Background()`.
func (r *Request) Delete(url string) (*Response, error)
Delete method does DELETE HTTP request. It's defined in section 4.3.5 of RFC7231.
func (r *Request) EnableTrace() *Request
EnableTrace method enables trace for the current request using `httptrace.ClientTrace` and provides insights.
client := resty.New() resp, err := client.R().EnableTrace().Get("https://httpbin.org/get") fmt.Println("Error:", err) fmt.Println("Trace Info:", resp.Request.TraceInfo())
See `Client.EnableTrace` available too to get trace info for all requests.
Since v2.0.0
func (r *Request) Execute(method, url string) (*Response, error)
Execute method performs the HTTP request with given HTTP method and URL for current `Request`.
resp, err := client.R().Execute(resty.GET, "http://httpbin.org/get")
func (r *Request) ExpectContentType(contentType string) *Request
ExpectContentType method allows to provide fallback `Content-Type` for automatic unmarshalling when `Content-Type` response header is unavailable.
func (r *Request) ForceContentType(contentType string) *Request
ForceContentType method provides a strong sense of response `Content-Type` for automatic unmarshalling. Resty gives this a higher priority than the `Content-Type` response header. This means that if both `Request.ForceContentType` is set and the response `Content-Type` is available, `ForceContentType` will win.
func (r *Request) Get(url string) (*Response, error)
Get method does GET HTTP request. It's defined in section 4.3.1 of RFC7231.
func (r *Request) Head(url string) (*Response, error)
Head method does HEAD HTTP request. It's defined in section 4.3.2 of RFC7231.
func (r *Request) Options(url string) (*Response, error)
Options method does OPTIONS HTTP request. It's defined in section 4.3.7 of RFC7231.
func (r *Request) Patch(url string) (*Response, error)
Patch method does PATCH HTTP request. It's defined in section 2 of RFC5789.
func (r *Request) Post(url string) (*Response, error)
Post method does POST HTTP request. It's defined in section 4.3.3 of RFC7231.
func (r *Request) Put(url string) (*Response, error)
Put method does PUT HTTP request. It's defined in section 4.3.4 of RFC7231.
func (r *Request) Send() (*Response, error)
Send method performs the HTTP request using the method and URL already defined for current `Request`.
req := client.R() req.Method = resty.GET req.URL = "http://httpbin.org/get" resp, err := client.R().Send()
func (r *Request) SetAuthScheme(scheme string) *Request
SetAuthScheme method sets the auth token scheme type in the HTTP request. For Example:
Authorization: <auth-scheme-value-set-here> <auth-token-value>
For Example: To set the scheme to use OAuth
client.R().SetAuthScheme("OAuth")
This auth header scheme gets added to all the request rasied from this client instance. Also it can be overridden or set one at the request level is supported.
Information about Auth schemes can be found in RFC7235 which is linked to below along with the page containing the currently defined official authentication schemes:
https://tools.ietf.org/html/rfc7235 https://www.iana.org/assignments/http-authschemes/http-authschemes.xhtml#authschemes
This method overrides the Authorization scheme set by method `Client.SetAuthScheme`.
func (r *Request) SetAuthToken(token string) *Request
SetAuthToken method sets the auth token header(Default Scheme: Bearer) in the current HTTP request. Header example:
Authorization: Bearer <auth-token-value-comes-here>
For Example: To set auth token BC594900518B4F7EAC75BD37F019E08FBC594900518B4F7EAC75BD37F019E08F
client.R().SetAuthToken("BC594900518B4F7EAC75BD37F019E08FBC594900518B4F7EAC75BD37F019E08F")
This method overrides the Auth token set by method `Client.SetAuthToken`.
func (r *Request) SetBasicAuth(username, password string) *Request
SetBasicAuth method sets the basic authentication header in the current HTTP request.
For Example:
Authorization: Basic <base64-encoded-value>
To set the header for username "go-resty" and password "welcome"
client.R().SetBasicAuth("go-resty", "welcome")
This method overrides the credentials set by method `Client.SetBasicAuth`.
func (r *Request) SetBody(body interface{}) *Request
SetBody method sets the request body for the request. It supports various realtime needs as easy. We can say its quite handy or powerful. Supported request body data types is `string`, `[]byte`, `struct`, `map`, `slice` and `io.Reader`. Body value can be pointer or non-pointer. Automatic marshalling for JSON and XML content type, if it is `struct`, `map`, or `slice`.
Note: `io.Reader` is processed as bufferless mode while sending request.
For Example: Struct as a body input, based on content type, it will be marshalled.
client.R(). SetBody(User{ Username: "jeeva@myjeeva.com", Password: "welcome2resty", })
Map as a body input, based on content type, it will be marshalled.
client.R(). SetBody(map[string]interface{}{ "username": "jeeva@myjeeva.com", "password": "welcome2resty", "address": &Address{ Address1: "1111 This is my street", Address2: "Apt 201", City: "My City", State: "My State", ZipCode: 00000, }, })
String as a body input. Suitable for any need as a string input.
client.R(). SetBody(`{ "username": "jeeva@getrightcare.com", "password": "admin" }`)
[]byte as a body input. Suitable for raw request such as file upload, serialize & deserialize, etc.
client.R(). SetBody([]byte("This is my raw request, sent as-is"))
func (r *Request) SetContentLength(l bool) *Request
SetContentLength method sets the HTTP header `Content-Length` value for current request. By default Resty won't set `Content-Length`. Also you have an option to enable for every request.
See `Client.SetContentLength`
client.R().SetContentLength(true)
func (r *Request) SetContext(ctx context.Context) *Request
SetContext method sets the context.Context for current Request. It allows to interrupt the request execution if ctx.Done() channel is closed. See https://blog.golang.org/context article and the "context" package documentation.
func (r *Request) SetCookie(hc *http.Cookie) *Request
SetCookie method appends a single cookie in the current request instance.
client.R().SetCookie(&http.Cookie{ Name:"go-resty", Value:"This is cookie value", })
Note: Method appends the Cookie value into existing Cookie if already existing.
Since v2.1.0
func (r *Request) SetCookies(rs []*http.Cookie) *Request
SetCookies method sets an array of cookies in the current request instance.
cookies := []*http.Cookie{ &http.Cookie{ Name:"go-resty-1", Value:"This is cookie 1 value", }, &http.Cookie{ Name:"go-resty-2", Value:"This is cookie 2 value", }, } // Setting a cookies into resty's current request client.R().SetCookies(cookies)
Note: Method appends the Cookie value into existing Cookie if already existing.
Since v2.1.0
func (r *Request) SetDoNotParseResponse(parse bool) *Request
SetDoNotParseResponse method instructs `Resty` not to parse the response body automatically. Resty exposes the raw response body as `io.ReadCloser`. Also do not forget to close the body, otherwise you might get into connection leaks, no connection reuse.
Note: Response middlewares are not applicable, if you use this option. Basically you have taken over the control of response parsing from `Resty`.
func (r *Request) SetError(err interface{}) *Request
SetError method is to register the request `Error` object for automatic unmarshalling for the request, if response status code is greater than 399 and content type either JSON or XML.
Note: Error object can be pointer or non-pointer.
client.R().SetError(&AuthError{}) // OR client.R().SetError(AuthError{})
Accessing a error value from response instance.
response.Error().(*AuthError)
func (r *Request) SetFile(param, filePath string) *Request
SetFile method is to set single file field name and its path for multipart upload.
client.R(). SetFile("my_file", "/Users/jeeva/Gas Bill - Sep.pdf")
func (r *Request) SetFileReader(param, fileName string, reader io.Reader) *Request
SetFileReader method is to set single file using io.Reader for multipart upload.
client.R(). SetFileReader("profile_img", "my-profile-img.png", bytes.NewReader(profileImgBytes)). SetFileReader("notes", "user-notes.txt", bytes.NewReader(notesBytes))
func (r *Request) SetFiles(files map[string]string) *Request
SetFiles method is to set multiple file field name and its path for multipart upload.
client.R(). SetFiles(map[string]string{ "my_file1": "/Users/jeeva/Gas Bill - Sep.pdf", "my_file2": "/Users/jeeva/Electricity Bill - Sep.pdf", "my_file3": "/Users/jeeva/Water Bill - Sep.pdf", })
func (r *Request) SetFormData(data map[string]string) *Request
SetFormData method sets Form parameters and their values in the current request. It's applicable only HTTP method `POST` and `PUT` and requests content type would be set as `application/x-www-form-urlencoded`.
client.R(). SetFormData(map[string]string{ "access_token": "BC594900-518B-4F7E-AC75-BD37F019E08F", "user_id": "3455454545", })
Also you can override form data value, which was set at client instance level.
func (r *Request) SetFormDataFromValues(data url.Values) *Request
SetFormDataFromValues method appends multiple form parameters with multi-value (`url.Values`) at one go in the current request.
client.R(). SetFormDataFromValues(url.Values{ "search_criteria": []string{"book", "glass", "pencil"}, })
Also you can override form data value, which was set at client instance level.
func (r *Request) SetHeader(header, value string) *Request
SetHeader method is to set a single header field and its value in the current request.
For Example: To set `Content-Type` and `Accept` as `application/json`.
client.R(). SetHeader("Content-Type", "application/json"). SetHeader("Accept", "application/json")
Also you can override header value, which was set at client instance level.
func (r *Request) SetHeaderMultiValues(headers map[string][]string) *Request
SetHeaderMultiValues sets multiple headers fields and its values is list of strings at one go in the current request.
For Example: To set `Accept` as `text/html, application/xhtml+xml, application/xml;q=0.9, image/webp, */*;q=0.8`
client.R(). SetHeaderMultiValues(map[string][]string{ "Accept": []string{"text/html", "application/xhtml+xml", "application/xml;q=0.9", "image/webp", "*/*;q=0.8"}, })
Also you can override header value, which was set at client instance level.
func (r *Request) SetHeaderVerbatim(header, value string) *Request
SetHeaderVerbatim method is to set a single header field and its value verbatim in the current request.
For Example: To set `all_lowercase` and `UPPERCASE` as `available`.
client.R(). SetHeaderVerbatim("all_lowercase", "available"). SetHeaderVerbatim("UPPERCASE", "available")
Also you can override header value, which was set at client instance level.
Since v2.6.0
func (r *Request) SetHeaders(headers map[string]string) *Request
SetHeaders method sets multiple headers field and its values at one go in the current request.
For Example: To set `Content-Type` and `Accept` as `application/json`
client.R(). SetHeaders(map[string]string{ "Content-Type": "application/json", "Accept": "application/json", })
Also you can override header value, which was set at client instance level.
func (r *Request) SetJSONEscapeHTML(b bool) *Request
SetJSONEscapeHTML method is to enable/disable the HTML escape on JSON marshal.
Note: This option only applicable to standard JSON Marshaller.
func (r *Request) SetMultipartField(param, fileName, contentType string, reader io.Reader) *Request
SetMultipartField method is to set custom data using io.Reader for multipart upload.
func (r *Request) SetMultipartFields(fields ...*MultipartField) *Request
SetMultipartFields method is to set multiple data fields using io.Reader for multipart upload.
For Example:
client.R().SetMultipartFields( &resty.MultipartField{ Param: "uploadManifest1", FileName: "upload-file-1.json", ContentType: "application/json", Reader: strings.NewReader(`{"input": {"name": "Uploaded document 1", "_filename" : ["file1.txt"]}}`), }, &resty.MultipartField{ Param: "uploadManifest2", FileName: "upload-file-2.json", ContentType: "application/json", Reader: strings.NewReader(`{"input": {"name": "Uploaded document 2", "_filename" : ["file2.txt"]}}`), })
If you have slice already, then simply call-
client.R().SetMultipartFields(fields...)
func (r *Request) SetMultipartFormData(data map[string]string) *Request
SetMultipartFormData method allows simple form data to be attached to the request as `multipart:form-data`
func (r *Request) SetOutput(file string) *Request
SetOutput method sets the output file for current HTTP request. Current HTTP response will be saved into given file. It is similar to `curl -o` flag. Absolute path or relative path can be used. If is it relative path then output file goes under the output directory, as mentioned in the `Client.SetOutputDirectory`.
client.R(). SetOutput("/Users/jeeva/Downloads/ReplyWithHeader-v5.1-beta.zip"). Get("http://bit.ly/1LouEKr")
Note: In this scenario `Response.Body` might be nil.
func (r *Request) SetPathParam(param, value string) *Request
SetPathParam method sets single URL path key-value pair in the Resty current request instance.
client.R().SetPathParam("userId", "sample@sample.com") Result: URL - /v1/users/{userId}/details Composed URL - /v1/users/sample@sample.com/details
It replaces the value of the key while composing the request URL. Also you can override Path Params value, which was set at client instance level.
func (r *Request) SetPathParams(params map[string]string) *Request
SetPathParams method sets multiple URL path key-value pairs at one go in the Resty current request instance.
client.R().SetPathParams(map[string]string{ "userId": "sample@sample.com", "subAccountId": "100002", }) Result: URL - /v1/users/{userId}/{subAccountId}/details Composed URL - /v1/users/sample@sample.com/100002/details
It replaces the value of the key while composing request URL. Also you can override Path Params value, which was set at client instance level.
func (r *Request) SetQueryParam(param, value string) *Request
SetQueryParam method sets single parameter and its value in the current request. It will be formed as query string for the request.
For Example: `search=kitchen%20papers&size=large` in the URL after `?` mark.
client.R(). SetQueryParam("search", "kitchen papers"). SetQueryParam("size", "large")
Also you can override query params value, which was set at client instance level.
func (r *Request) SetQueryParams(params map[string]string) *Request
SetQueryParams method sets multiple parameters and its values at one go in the current request. It will be formed as query string for the request.
For Example: `search=kitchen%20papers&size=large` in the URL after `?` mark.
client.R(). SetQueryParams(map[string]string{ "search": "kitchen papers", "size": "large", })
Also you can override query params value, which was set at client instance level.
func (r *Request) SetQueryParamsFromValues(params url.Values) *Request
SetQueryParamsFromValues method appends multiple parameters with multi-value (`url.Values`) at one go in the current request. It will be formed as query string for the request.
For Example: `status=pending&status=approved&status=open` in the URL after `?` mark.
client.R(). SetQueryParamsFromValues(url.Values{ "status": []string{"pending", "approved", "open"}, })
Also you can override query params value, which was set at client instance level.
func (r *Request) SetQueryString(query string) *Request
SetQueryString method provides ability to use string as an input to set URL query string for the request.
Using String as an input
client.R(). SetQueryString("productId=232&template=fresh-sample&cat=resty&source=google&kw=buy a lot more")
func (r *Request) SetResult(res interface{}) *Request
SetResult method is to register the response `Result` object for automatic unmarshalling for the request, if response status code is between 200 and 299 and content type either JSON or XML.
Note: Result object can be pointer or non-pointer.
client.R().SetResult(&AuthToken{}) // OR client.R().SetResult(AuthToken{})
Accessing a result value from response instance.
response.Result().(*AuthToken)
func (r *Request) SetSRV(srv *SRVRecord) *Request
SetSRV method sets the details to query the service SRV record and execute the request.
client.R(). SetSRV(SRVRecord{"web", "testservice.com"}). Get("/get")
func (r *Request) TraceInfo() TraceInfo
TraceInfo method returns the trace info for the request. If either the Client or Request EnableTrace function has not been called prior to the request being made, an empty TraceInfo object will be returned.
Since v2.0.0
RequestLog struct is used to collected information from resty request instance for debug logging. It sent to request log callback before resty actually logs the information.
type RequestLog struct { Header http.Header Body string }
RequestLogCallback type is for request logs, called before the request is logged
type RequestLogCallback func(*RequestLog) error
RequestMiddleware type is for request middleware, called before a request is sent
type RequestMiddleware func(*Client, *Request) error
Response struct holds response values of executed request.
type Response struct { Request *Request RawResponse *http.Response // contains filtered or unexported fields }
func (r *Response) Body() []byte
Body method returns HTTP response as []byte array for the executed request.
Note: `Response.Body` might be nil, if `Request.SetOutput` is used.
func (r *Response) Cookies() []*http.Cookie
Cookies method to access all the response cookies
func (r *Response) Error() interface{}
Error method returns the error object if it has one
func (r *Response) Header() http.Header
Header method returns the response headers
func (r *Response) IsError() bool
IsError method returns true if HTTP status `code >= 400` otherwise false.
func (r *Response) IsSuccess() bool
IsSuccess method returns true if HTTP status `code >= 200 and <= 299` otherwise false.
func (r *Response) Proto() string
Proto method returns the HTTP response protocol used for the request.
func (r *Response) RawBody() io.ReadCloser
RawBody method exposes the HTTP raw response body. Use this method in-conjunction with `SetDoNotParseResponse` option otherwise you get an error as `read err: http: read on closed response body`.
Do not forget to close the body, otherwise you might get into connection leaks, no connection reuse. Basically you have taken over the control of response parsing from `Resty`.
func (r *Response) ReceivedAt() time.Time
ReceivedAt method returns when response got received from server for the request.
func (r *Response) Result() interface{}
Result method returns the response value as an object if it has one
func (r *Response) Size() int64
Size method returns the HTTP response size in bytes. Ya, you can relay on HTTP `Content-Length` header, however it won't be good for chucked transfer/compressed response. Since Resty calculates response size at the client end. You will get actual size of the http response.
func (r *Response) Status() string
Status method returns the HTTP status string for the executed request.
Example: 200 OK
func (r *Response) StatusCode() int
StatusCode method returns the HTTP status code for the executed request.
Example: 200
func (r *Response) String() string
String method returns the body of the server response as String.
func (r *Response) Time() time.Duration
Time method returns the time of HTTP response time that from request we sent and received a request.
See `Response.ReceivedAt` to know when client received response and see `Response.Request.Time` to know when client sent a request.
ResponseError is a wrapper for including the server response with an error. Neither the err nor the response should be nil.
type ResponseError struct { Response *Response Err error }
func (e *ResponseError) Error() string
func (e *ResponseError) Unwrap() error
ResponseLog struct is used to collected information from resty response instance for debug logging. It sent to response log callback before resty actually logs the information.
type ResponseLog struct { Header http.Header Body string }
ResponseLogCallback type is for response logs, called before the response is logged
type ResponseLogCallback func(*ResponseLog) error
ResponseMiddleware type is for response middleware, called after a response has been received
type ResponseMiddleware func(*Client, *Response) error
RetryAfterFunc returns time to wait before retry For example, it can parse HTTP Retry-After header https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html Non-nil error is returned if it is found that request is not retryable (0, nil) is a special result means 'use default algorithm'
type RetryAfterFunc func(*Client, *Response) (time.Duration, error)
RetryConditionFunc type is for retry condition function input: non-nil Response OR request execution error
type RetryConditionFunc func(*Response, error) bool
SRVRecord struct holds the data to query the SRV record for the following service.
type SRVRecord struct { Service string Domain string }
TraceInfo struct is used provide request trace info such as DNS lookup duration, Connection obtain duration, Server processing duration, etc.
Since v2.0.0
type TraceInfo struct { // DNSLookup is a duration that transport took to perform // DNS lookup. DNSLookup time.Duration // ConnTime is a duration that took to obtain a successful connection. ConnTime time.Duration // TCPConnTime is a duration that took to obtain the TCP connection. TCPConnTime time.Duration // TLSHandshake is a duration that TLS handshake took place. TLSHandshake time.Duration // ServerTime is a duration that server took to respond first byte. ServerTime time.Duration // ResponseTime is a duration since first response byte from server to // request completion. ResponseTime time.Duration // TotalTime is a duration that total request took end-to-end. TotalTime time.Duration // IsConnReused is whether this connection has been previously // used for another HTTP request. IsConnReused bool // IsConnWasIdle is whether this connection was obtained from an // idle pool. IsConnWasIdle bool // ConnIdleTime is a duration how long the connection was previously // idle, if IsConnWasIdle is true. ConnIdleTime time.Duration // RequestAttempt is to represent the request attempt made during a Resty // request execution flow, including retry count. RequestAttempt int // RemoteAddr returns the remote network address. RemoteAddr net.Addr }
User type is to hold an username and password information
type User struct { Username, Password string }