Steps for utilizing a Get() method to view a response within Angular

I am having trouble with implementing an API call on a page and I'm unsure about what's wrong with the Subscribe/Observe method. Currently, this is the code that I have:

import { Component, OnInit } from '@angular/core';
    import { Router } from '@angular/router';
    import { appRoutesNames } from 'src/app/app.routes.names';
    import { coachInteractionRouteNames } from '../coach-integration.routes.names';
    import { createSessionRouteNames } from '../create-session/create-session.routes.names';
    import { coachMatchMakingRouteNames } from './coach-matchmaking.routes.names';
    import { CoachGenericResponse,SupportAreaCategory } from './coach-matchmaking.model';
    import { HttpClient } from '@angular/common/http';

    @Component({
      selector: 'app-coach-matchmaking',
      templateUrl: './coach-matchmaking.component.html',
      styleUrls: ['./coach-matchmaking.component.scss']
    })
    export class CoachMatchmakingComponent implements OnInit {
      appService: any;
      coachService: any;
      supportAreas: any;
      http: any;

      constructor(private readonly router: Router, http: HttpClient) { }


      ngOnInit(): void {
        this.getCategories().subscribe;
      }



      //API Loading

    private userAccessURL = "https://uks-tst-tbp-gw.azurewebsites.net/Business/GetCategories";

    getCategories = () => {
      return this.http.get(this.userAccessURL);
    }

    }

However, there doesn't seem to be anything showing up in the Console/Network sections of the page, indicating that the API is not loading at all. Can anyone provide some assistance?

Answer №1

  Use the getCategories function to fetch data and subscribe to the response for logging purposes.

Answer №2

I highly suggest delving deeper into rxjs and understanding how Observables function as they are commonly used in Angular development. In your specific scenario, you would need to follow these steps to subscribe:

ngOnInit() {
    this.getCategories().subscribe((data) => {
        // data holds the response from your API
    });
}

Alternatively, if you prefer working with Promises, you can convert your observable into a promise like this:

import { lastValueFrom } from 'rxjs';

//...

ngOnInit() {
    lastValueFrom(this.getCategories()).then((data) => {
        // data contains your API response
    });
}

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