IO-2433 Basic completion webhook, S3 upload, audit trail.

server/media/imgproxy-media.js

@@ -94,6 +94,47 @@ const generateSignedUploadUrls = async (req, res) => {
   }
 };
 
+/**
+ * Upload a file buffer directly to S3.
+ * Accepts either `req.file.buffer` (e.g. from multer) or `req.body.buffer` (base64 string).
+ */
+const uploadFileBuffer = async ({ key, contentType, buffer }) => {
+  try {
+
+
+    if (!key) {
+      throw new Error("key is required");
+    }
+    if (!buffer) {
+      throw new Error("buffer is required");
+    }
+
+    const isPdf = key.toLowerCase().endsWith(".pdf");
+    const client = new S3Client({ region: InstanceRegion() });
+
+    const putParams = {
+      Bucket: imgproxyDestinationBucket,
+      Key: key,
+      Body: buffer,
+      StorageClass: "INTELLIGENT_TIERING"
+    };
+
+    if (contentType) {
+      putParams.ContentType = contentType;
+    } else if (isPdf) {
+      putParams.ContentType = "application/pdf";
+    }
+
+    await client.send(new PutObjectCommand(putParams));
+
+
+    return ({ success: true, key, bucket: imgproxyDestinationBucket });
+  } catch (error) {
+
+    return { success: false, message: error.message, stack: error.stack };
+  }
+};
+
 /**
  * Get Thumbnail URLS
  * @param req
@@ -500,6 +541,7 @@ const keyStandardize = (doc) => {
 
 module.exports = {
   generateSignedUploadUrls,
+  uploadFileBuffer,
   getThumbnailUrls,
   getOriginalImageByDocumentId,
   downloadFiles,