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The Main.make attribute gets the name of each car from the response data returned from the server. Using the map function, the above script loops through the response data. Main.make= "Porsche "? data.innerHTML += " "+ Main.make+ " "+ " is a good product ":ĭata.innerHTML += " "+ Main.make+ " "+ "is an average product " ) Iterate through the data with Map and write your rendering logic: Get the receiver endpoint from Python using fetch: Next, you can now write the data to the DOM with additional logic in your JavaScript: // Get the button and container from HTML: This should be 200, which means your API has returned a valid response.
JSON PACKET SENDER JQUERY HOW TO
Related: How to Use Chrome DevTools to Troubleshoot Website IssuesĪlso, you can click Headers to view the response status of the request. Go to the Console section, and you'll see the returned JSON response. Now, launch the HTML file in your browser and open the developer console (on Windows: Ctrl + Shift + I, on Mac: CMD + ALT + I). The receiver endpoint in Flask receives this request and sends response data to JavaScript (front end), which displays in the browser console. Hence, when a user clicks the button, fetch uses the POST request to send the array of cars to the server. The button.click function is a click event listener attached to the button in the HTML file you created earlier.
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The above script contains a JSON array of rally cars. Get the reciever endpoint from Python using fetch: Create an event listener on the button element: Create an array of cars to send to the server: Here's the JavaScript: // Get the button and container elements from HTML:Ĭonst button = document.getElementById("theButton")Ĭonst data = document.getElementById("info") Related: How to Test an API Using Python and JavaScriptĪfter setting up the HTML file, use the JavaScripts built-in Fetch API to post the data ( cars) to the server. Note that this is not a convention-you can display the incoming data in any HTML container you like. The $.The h3 tag serves as a container for the incoming data if you later decide to display it in the DOM. You must have JQuery loaded for this to work. $("body").append("" + data.quoteText + " - " + data.quoteAuthor + "") There are other ways to do this, but I find $.getJSON to be easier. The dataType parameter is set to json, letting the server know we expect. (Anytime you see the $ in front, you know that we’re dealing with JQuery.) It is JQuery’s way of doing an AJAX call. We are using the jQuery ajax() method to send an asynchronous HTTP request to. I find the AJAX command to be a little cumbersome, so I prefer to use JQuery’s function, $.getJSON. It stands for “asynchronous JavaScript and XML” ( XML is a different data format, but we’re using json). So, how do you get this into your Javascript program? AJAX comes to the rescue. Other formats exist, but json is what we’re using.
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This is sending back a json formatted package.
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You can test it now by opening a new window and putting that string in the address bar. For example, if I send it, it will send back a quoteĭata package. Their server has a program running on it that when it is sent a specific string, it will send back a data packet. Specifically to this project, we need an API that tells us how to interface with the forismatic server. In short, an API is just an “application programming interface” or a standard for how we can interface with a program, sever, etc. There are plenty of videos to explain some of these things. I would recommend spending some time on youtube. Yes, this is confusing, take a deep breath.