Update index.js

index.js

@@ -399,6 +399,7 @@ function toPDF(urls) {
 async function processImage(image, denoise, scale, format, type) {
   return new Promise(async (resolve, reject) => {
     try {
+      let type_img = await fileType.fromBuffer(image)
       let random_numbers = Math.floor(Math.random() * 1000);
 
       const formData = new FormData();
@@ -408,8 +409,8 @@ async function processImage(image, denoise, scale, format, type) {
       formData.append("type", type);
       formData.append("file", image, {
         filename:
-          "images_" + random_numbers.toString().padStart(3, "0") + ".jpeg",
-        contentType: "image/jpeg",
+          "images_" + random_numbers.toString().padStart(3, "0") + "." + type_img.ext,
+        contentType: type_img.mime,
       });
 
       const response = await axios.request({