Instructions ‐ Creating POST requests - EmmieBu/projects GitHub Wiki

Step 1: Client-side Form
HTML Form: Create an HTML form that allows the user to input a hexadecimal message. The form should include a text input field and a submit button.

JavaScript (or another client-side language): When the user submits the form, the input data needs to be captured and sent to the server using a POST request. This can be done using JavaScript, for instance, with the fetch API or XMLHttpRequest.

Key Concepts:
HTML Form Elements: Text input, submit button
JavaScript Event Handling: Capturing the form submission and preventing the default form action (which would reload the page).

****Step 2: Server-side Handling****
Once the client-side form sends the hexadecimal message to the server, the server needs to handle the incoming POST request, process the data, and return a response.

Server-side Steps:
Receive the Request: The server needs to have an endpoint set up to receive the POST request. In our example, we use /process_hex.
Extract and Convert Data: The server extracts the hexadecimal message from the request, converts it to the desired JSON structure, and prepares a response.
Send Response: The server sends the JSON response back to the client.

Step 3: Client-Side Handling of Server Response
After the server processes the request and sends back the JSON response, the client-side script needs to handle this response. This involves:

Receiving the Response: The JavaScript code receives the JSON response from the server.
Processing the Data: The response is parsed, and the relevant data is extracted.
Updating the UI: The webpage is updated, for example, by displaying the data in a table or another suitable format.
Example: Handling the JSON Response