Example practice of angular5 httpclient-JS Tutorial-php.cn

Example practice of angular5 httpclient

亚连

Release： 2018-05-30 17:41:31

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This article mainly introduces the practical examples of angular5 httpclient. Now I will share it with you and give you a reference.

Httpclient has been used since angular 4.3.0 and later, replacing the previous http, and the referenced package path has changed to angular/common/http

A basic httpclient example

import { Injectable } from &#39;@angular/core&#39;;
import { HttpClient, HttpResponse } from &#39;@angular/common/http&#39;;
import { Observable } from &#39;rxjs/Observable&#39;;
import { HttpDefaultOptions } from &#39;./http.default.options&#39;;

@Injectable()
export class Service {

 private static METHOD_DELTE = &#39;DELETE&#39;;
 private static METHOD_POST = &#39;POST&#39;;
 private static METHOD_GET = &#39;GET&#39;;
 private static METHOD_PUT = &#39;PUT&#39;;

 constructor(private httpClient: HttpClient) {
 }

 /**
  * 将数据上传
  * @param data
  * @param {Function} func
  */
 uploadDataPost(data: any, func: Function) {
  let url = &#39;/api/test&#39;;
  this.apiPost(url, data)
   .subscribe((response: HttpResponse) => {
    func(response);
   }, error => {
    func(undefined);
   });
 }

 /**
  * 返回json 格式的obj 对象
  * @param url
  * @param body
  * @param urlSearchParams
  * @returns {Observable<{}>}
  */
 apiPost(url, body, urlSearchParams?: any): Observable<{}> {
  let options = {
   body: body ? body : null,
   params: urlSearchParams,
   responseType: &#39;json&#39;
  };
  return this.httpClient.request(Service.METHOD_POST, url, options);
 }

 /**
  * 返回一个obj 对象
  * @param url
  * @param urlSearchParams url 的查询参数
  * @returns {Observable<{}>}
  */
 apiGet(url, urlSearchParams?: any): Observable<{}> {
  let options = {
   params: urlSearchParams,
   responseType: &#39;json&#39;
  };
  return this.httpClient.request(Service.METHOD_GET, url, options);
 }
}

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The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

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