Using JavaScript to make an HTTP request for a JSON object from an API hosted on a local server

I currently have an API running on my local machine using Sinatra and JRuby to interact with a SQL server. When I access 'localhost:4567/get/233310/loc', it returns a JSON object.

[{"uid":233307,"lat":41.4191113333333,"long":-72.8941905}]

My goal is to retrieve this JSON object and assign each value to a variable in my JavaScript code. Do you think the best approach would be through an HTTP request, or is there a better way?

In the future, I aim to automate this request every 30 seconds, but that's a task for later on.

Can someone assist me with this process? Your help is greatly appreciated.

javascriptjsonapihttpwebrequestlocalhost

Answer №1

There is another fantastic library known as Prototype that you may find helpful. Take a look at it here:

Incorporating the prototype.js library into your page to make a request is quite simple. Just include the following code:

<script src="prototype.js"></script>

Afterwards, execute this code:

var url = 'http://localhost:4567/get/233310/loc'; new Ajax.Request(url, { method: 'get', onSuccess: function(transport) { var json = transport.responseJSON; window.alert(json.inspect()); } });

Once this process is finished, you will receive a popup alert displaying the contents of your JSON object.

Ensure that your server-side script delivers the JSON with the HTTP header "Content-Type" set to "application/json" so the client-side script knows to parse it as JSON.

We hope you find this information valuable.

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