store mime_type for each file

server.js

@@ -179,7 +179,7 @@ app.post('/image', uploadMulter.single('image'), async (req, res) => {
         const handleId = req.body.handleId;
         await new Promise((resolve, reject) => {
           db.run(
-            'INSERT INTO image (time, did, claim_type, handle_id, local_file, size, final_file, url) VALUES (?, ?, ?, ?, ?, ?, ?, ?)',
+            'INSERT INTO image (time, did, claim_type, handle_id, local_file, size, final_file, mime_type, url) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)',
             [
               currentDate,
               issuerDid,
@@ -188,6 +188,7 @@ app.post('/image', uploadMulter.single('image'), async (req, res) => {
               localFile,
               reqFile.size,
               fileName,
+              reqFile.mimetype,
               finalUrl
             ],
             (dbErr) => {

sql/migrations/V1__Create_image_table.sql

@@ -7,6 +7,7 @@ CREATE TABLE image (
   local_file TEXT NOT NULL,
   size INTEGER NOT NULL,
   final_file TEXT NOT NULL,
+  mime_type TEXT NOT NULL,
   url TEXT NOT NULL
 );