This code defines an Angular service called SearchService that handles search requests by sending a POST request to a specified URL with the search query and returns an observable response.

Run example

npm run import -- "Search notebook service"

Search notebook service

import {Observable} from 'rxjs/Observable';
import {Http, Response} from '@angular/http';
import {Injectable} from '@angular/core';

export let callbackUrl = 'localhost';

@Injectable()
export class SearchService {
    http: Http

    constructor(public
) {
}

search(query
:
string
):
Observable < Response > {
    console.log('Searching ' + query);
return this.http.post(callbackUrl, {query});
}
}

import { Injectable } from '@angular/core';
import { HttpClient, HttpHeaders } from '@angular/common/http';

@Injectable()
export class SearchService {
  private apiEndpoint = 'localhost';
  private headers = new HttpHeaders({
    'Content-Type': 'application/json',
  });

  constructor(private http: HttpClient) { }

  /**
   * Search for a query using the provided API endpoint.
   *
   * @param query The search query.
   * @returns An observable of the response.
   */
  search(query: string): any {
    console.log(`Searching for ${query}...`);
    return this.http.post(
      this.apiEndpoint,
      { query },
      { headers: this.headers }
    );
  }

  /**
   * Set the API endpoint URL.
   *
   * @param url The new API endpoint URL.
   */
  setApiEndpoint(url: string): void {
    this.apiEndpoint = url;
  }
}

This code defines an Angular service called SearchService responsible for handling search requests.

Here's a breakdown:

1. Imports:

   • Imports necessary modules from RxJS (Observable), Angular's HTTP module (Http, Response), and Angular's dependency injection (Injectable).

2. callbackUrl:

   • Defines a constant callbackUrl for the URL where search results will be sent.

3. SearchService:

   • Declares a class SearchService decorated with @Injectable to make it injectable into other components.
   • Has an http property to inject the Http service.
   • The constructor takes the Http service as a parameter.

4. search() Method:

   • Defines a method search() that takes a query string as input.
   • Logs the search query to the console.
   • Uses this.http.post() to send a POST request to callbackUrl with the search query as data.
   • Returns an Observable<Response> representing the response from the server.

Let me know if you have any other code snippets you'd like me to explain!