fetchMovies function

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Sat Feb 08 2025 00:31:07 GMT+0000 (Coordinated Universal Time)

const fetchMovies = async () => {
    // set the loading state to true so the loading indicator is displayed as soon as the function is called
    setIsLoading(true); 

    try { 
      // endpoint for fetching movies and sorting them by popularity (descending)
      const endpoint = `${API_BASE_URL}/discover/movie?sort_by=popularity.desc`;  
      // calling the endpoint with the API options
      const response = await fetch(endpoint, API_OPTIONS);
      // parsing the response into a json object
      if (!response.ok) {
        throw new Error('Failed to fetch movies');
      }
      const data = await response.json(); // if successful response, parse the data
      console.log(data); // just to see what we get from the API (over 48000 pages and almost a million movies)

      // if we get no response, set the error message, and set the movies state to an empty array
      if(data.Response === 'False') {
        setErrorMessage(data.Error || 'Failed to fetch movies');
        setMovies([]);
        return; // exit out of the function
      }

      // if we get a response, set the movies state with the fetched data
      setMovies(data.results || []);

      /*
      The empty array in `setMovies(data.results || [])` ensures that the `movies` state is always set to a valid array,  
      even if the API response does not include the expected `results` property or if it is `null` or `undefined`.
      */

    } catch (error) {
      console.error(`Error while fetching movies: ${error}`);
      setErrorMessage('An error occurred while fetching movies. Please try again later.');

    } finally {
      // set the loading state to false after the fetch is complete (whether successful or not)
      setIsLoading(false);
    }
  }

COPY

this function fetches movies from the TMDB API it's part of the App component in a React movie App built via a JS Mastery tutorial (URL below)

https://www.youtube.com/watch?v=dCLhUialKPQ&t=1478s

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fetchMovies function

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