Angular HttpClient introductory tutorial
This time I will bring you an introductory tutorial on Angular HttpClient. What are the precautions for getting started with Angular HttpClient. The following is a practical case, let’s take a look.
The HttpClient class in @angular/common/http provides a simplified API for Angular applications to implement HTTP client functionality.
1. Preparation
First import HttpClientModule in app.module.ts. As follows:
import { HttpClientModule } from '@angular/common/http';
@NgModule({
imports: [
HttpClientModule,
]
})
export class AppModule {}
2. Introduce HttpClient into service.ts that requires to reference HttpClient, as follows:
import { HttpClient } from '@angular/common/http';
export class ConfigService {
constructor(private http: HttpClient) { }
}
##3. Request data
return this.http.get/post(url:'请求地址' ,
options: {
headers: this.headers
})
.toPromise()
.then((data: any) => {
return data;
})
.catch((err) => {
console.log(err);
});
}
4. Introduce service into the corresponding component.ts file
##Data format:
{
"lists":[
{"title":"","pic":""},
{"title":"","pic":""}
]
}5. Call on the page
I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to the php Chinese website Other related articles!
Recommended reading:
Vue three-layer nested routing experienceVue.js calculation and listener properties Detailed instructions for useThe above is the detailed content of Angular HttpClient introductory tutorial. For more information, please follow other related articles on the PHP Chinese website!
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