main.js

const modelSelector = document.getElementById("model");
 const generateButton = document.getElementById("generate-button");
 
 generateButton.addEventListener("click", (event) => {
   event.preventDefault();
   let model = modelSelector.value;
   let generatedImage = document.getElementById("generated-image");
   fetch('/generate-image', {
    method:"POST",
    body: {
        model: model
      },
      headers: {
        'Content-Type': 'application/json'
      }
 })
 .then(res => res.json())
 .then(resJson => {
    generatedImage.src = `https://placekitten.com/200/300?img=${resJson.imagePath}`;
 })
 });