Retrieve JSON information from an external JavaScript source

Question

Retrieve JSON information from an external JavaScript source

Looking to utilize vanilla JavaScript to retrieve data from the MeetUp API. The code snippet being used on the website is as follows:

function addScript(src) {
    console.log(src);
    var s = document.createElement( 'script' );
    s.setAttribute( 'src', src );
    document.body.appendChild( s );
}

addScript('https://api.meetup.com/2/groups?callback=?&sign=true&member_id=8377069&page=20&api&key=API_KEY_GOES_HERE&only=name,link');

A script tag has been employed to access the data in order to circumvent cross-domain issues. While acknowledging jQuery could address this, I prefer not to rely on external libraries.

However, the provided code yields the following error:

Uncaught SyntaxError: Unexpected token :

This issue likely arises due to the JSON format of the return. How can this be resolved while still ensuring access to the JSON data? Your assistance is greatly appreciated.

For an example link, kindly refer to: http://jsfiddle.net/londonfed/7ms44ft6/

javascript json meetup

Answer 1

Answer №1

Utilizing the meetup API's callback functionality, you can create a global function within the window object and assign the callback parameter to the function name:

function loadScript(url) {
    console.log(url);
    var script = document.createElement('script');
    script.setAttribute('src', url);
    document.body.appendChild(script);
}

// Global callback function for handling data from api:
window.apiCallback = function(response) {
    // Process retrieved data as needed
    alert(response.results[0].name);
}
loadScript('https://api.meetup.com/2/groups?callback=apiCallback&sign=true&member_id=8377069&page=20&api&key=YOUR_API_KEY_HERE&only=name,link');

Answer 2

Utilizing the meetup API's callback functionality, you can create a global function within the window object and assign the callback parameter to the function name:

function loadScript(url) {
    console.log(url);
    var script = document.createElement('script');
    script.setAttribute('src', url);
    document.body.appendChild(script);
}

// Global callback function for handling data from api:
window.apiCallback = function(response) {
    // Process retrieved data as needed
    alert(response.results[0].name);
}
loadScript('https://api.meetup.com/2/groups?callback=apiCallback&sign=true&member_id=8377069&page=20&api&key=YOUR_API_KEY_HERE&only=name,link');

Answer 3

Answer №2

In order to effectively retrieve and process the data from a JSONP request, it is essential to include a callback parameter within your URL. This callback parameter should match the name of the function responsible for handling the returned data:

function handleJSONResponse(response) {
  console.log(response.items);
}

addScript('https://api.example.com/data?callback=handleJSONResponse&key=12345678&format=jsonp');

Keep in mind that the items property within the response object might require iteration through a loop.

Answer 4

In order to effectively retrieve and process the data from a JSONP request, it is essential to include a callback parameter within your URL. This callback parameter should match the name of the function responsible for handling the returned data:

function handleJSONResponse(response) {
  console.log(response.items);
}

addScript('https://api.example.com/data?callback=handleJSONResponse&key=12345678&format=jsonp');

Keep in mind that the items property within the response object might require iteration through a loop.

Retrieve JSON information from an external JavaScript source

Answer №1

Answer №2

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