Perform an HTTP GET request to a RESTful service with specified parameters using Angular 2

I'm currently facing an issue while attempting to create a GET request to the YouTube Web API. I'm struggling with passing parameters through the http.get function and have confirmed the request is being sent using Fiddler. However, I keep receiving a 400 error indicating that I am missing the required parameter "Part". How can I adjust my code to ensure that all necessary parameters are included in the request?

private _url = 'https://www.googleapis.com/youtube/v3/';
private _key = '';

getPlaylistVideos(playlistId, pageToken){

    var url = this._url + "playlistItems";
    var options =  { part: 'snippet', maxResults: 50, playlistId: playlistId, key: this._key, pageToken: pageToken }

    return this.http.get(url, options);

}
angularjstypescriptangular

Answer №1

Make sure to add the search parameters to your request. This code snippet should help you achieve that:

fetchPlaylistItems(playlistId, pageToken) {
    let url = `${this._url}playlistItems`,
        options =  { part: 'snippet', maxResults: 50, playlistId: playlistId, key: this._key, pageToken: pageToken }, 
        params = URLSearchParams();

    for (let key in options) params.set(key, options[key]);

    return this.http.get(url, {search: options});
}

To create the URLSearchParams object, utilize the set method as described in the official documentation.

Answer №2

Take a look at this already answered question about AngularJS and the YouTube V3 API. Check it out here, credit to @Sandeep Sukhija.

In regards to the missing parameter part, make sure to include it in the request like so: part: 'snippet'

Here is an example of the code:

function getPlaylistVideos(playlistId, pageToken) {
    // pass the page token as a parameter to the API
    $.get('https://www.googleapis.com/youtube/v3/playlistItems', { part: 'snippet', maxResults: 50, playlistId: playlistId, key: key, pageToken: pageToken })
}

Explanation on using the part parameter

The part parameter must be included in any API request that retrieves or returns a resource. This parameter specifies which top-level (non-nested) resource properties should be included in the API response. For instance, a video resource includes the following parts:

snippet contentDetails fileDetails player processingDetails recordingDetails statistics status suggestions topicDetails

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