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API / @angular/http

RequestOptions

Creates a request options object to be optionally provided when instantiating a Request.

弃用说明

see https://angular.io/guide/http

class RequestOptions { constructor(opts: RequestOptionsArgs = {}) method: RequestMethod | string | null headers: Headers | null body: any url: string | null params: URLSearchParams search: URLSearchParams withCredentials: boolean | null responseType: ResponseContentType | null merge(options?: RequestOptionsArgs): RequestOptions }

子类

说明

This class is based on the RequestInit description in the Fetch Spec.

All values are null by default. Typical defaults can be found in the BaseRequestOptionsclass, which sub-classes RequestOptions.

import {RequestOptions, Request, RequestMethod} from '@angular/http'; const options = new RequestOptions({ method: RequestMethod.Post, url: 'https://google.com' }); const req = new Request(options); console.log('req.method:', RequestMethod[req.method]); // Post console.log('options.url:', options.url); // https://google.com

构造函数

constructor(opts: RequestOptionsArgs = {})

参数

opts

Type: RequestOptionsArgs.

可选. 默认值是 {}.

属性

属性名类型说明
method

Http method with which to execute a Request. Acceptable methods are defined in the RequestMethodenum.

headersHeaders

to be attached to a Request.

body

Body to be used when creating a Request.

url

Url with which to perform a Request.

params

Search parameters to be included in a Request.

search
withCredentials

Enable use credentials for a Request.

responseType

方法

merge()

Creates a copy of the RequestOptions instance, using the optional input as values to override existing values. This method will not change the values of the instance on which it is being called.

merge(options?: RequestOptionsArgs): RequestOptions

参数

options

Type: RequestOptionsArgs.

可选. 默认值是 undefined.

返回值

RequestOptions

Note that headers and search will override existing values completely if present in the options object. If these values should be merged, it should be done prior to calling merge on the RequestOptions instance.

import {RequestOptions, Request, RequestMethod} from '@angular/http'; const options = new RequestOptions({ method: RequestMethod.Post }); const req = new Request(options.merge({ url: 'https://google.com' })); console.log('req.method:', RequestMethod[req.method]); // Post console.log('options.url:', options.url); // null console.log('req.url:', req.url); // https://google.com