Ionic 3 Post to REST API (Swagger)
Ionic 3 Post to REST API (Swagger)
提问于 2018-06-03 03:51:34
我想向REST API (Swagger)发送文本。此端点接受文本并返回JSON。
错误
未捕获(在promise中)：TypeError:未定义不是对象(计算'this.RestProvider.post')
My REST Provider
import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs/Observable';
import { map, catchError } from 'rxjs/operators';
@Injectable()
export class RestProvider {
private apiUrl = 'https://xxxxx.com/xxxx/?language=DE';
constructor(public http: HttpClient) {
console.log('Hello RestProvider Provider');
}
}home.ts中的请求
getDiagnosis(data) {
return new Promise((resolve, reject) => {
this.RestProvider.post(this.apiUrl, data,{headers:{'Content-Type': 'text'}})
.subscribe(data => {
resolve(data);
}, (err) => {
reject(err);
});
});
}回答 1
Stack Overflow用户
回答已采纳
发布于 2018-06-03 10:32:43
您不能调用不包含在RestProvider中的this.RestProvider.post。
在RestProvider类中定义一个getDiagnosis(data)方法，并从home.ts类中调用它。
RestProvider.ts
import { Injectable } from '@angular/core';
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Observable } from 'rxjs/Observable';
import { map, catchError } from 'rxjs/operators';
// Set Headers to post request
const httpOptions = {
headers: new HttpHeaders(
{ 'Content-Type': 'text' },
)
};
@Injectable()
export class RestProvider {
private apiUrl = 'https://xxxxx.com/xxxx/?language=DE';
constructor(public http: HttpClient) {
}
getDiagnosis(data): Observable<any> {
return this.http.post(this.apiUrl, data, httpOptions);
}
}home.ts
export class Home {
constructor(private restProvider : RestProvider) {
}
getDiagnosis(data) {
this.restProvider.getDiagnosis(data)
.subscribe(response => {
//Do whatever you want with response data
});
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/50660618
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