Update main.coffee

main.coffee

@@ -15,43 +15,42 @@ isBase64 = (str) ->
 
 app = express()
 app.set 'json spaces', 4
-
-# Limit upload file
+# limit upload file
 app.use express.json limit: limitSize
 app.use express.urlencoded extended: true, limit: limitSize
-
-# Logger middleware
+# logger
 app.use (req, res, next) ->
 	time = new Date().toLocaleString 'id', timeZone: 'Asia/Jakarta'
 	console.log "[#{time}] #{req.method}: #{req.url}"
 	next()
-
-# Serve static files from tmpFolder
+# allow user to access file in tmpFolder
 app.use '/file', express.static tmpFolder
 
 app.all '/', (_, res) -> res.send 'POST /upload'
 
-app.post '/upload', (req, res) ->
-	do async ->
-		{ file } = req.body
-		if not file or typeof file isnt 'string' or not isBase64(file)
-			res.status(400).json message: 'Payload body file must be filled in base64 format'
-			return
-
-		fileBuffer = Buffer.from(file, 'base64')
-		ftype = await fromBuffer(fileBuffer) or { mime: 'application/octet-stream', ext: 'bin' }
-
-		randomName = Math.random().toString(36).slice(2)
-		fileName = "#{ftype.mime.split('/')[0]}-#{randomName}.#{ftype.ext}"
-		await fs.promises.writeFile "#{tmpFolder}/#{fileName}", fileBuffer
+app.all '/upload', (req, res) ->
+	if req.method isnt 'POST'
+		res.json message: 'Method not allowed'
+
+	{ file } = req.body
+	if not file and typeof file isnt 'string' and not isBase64 file
+		res.json message: 'Payload body file must be filled in base64 format'
+
+	fileBuffer = Buffer.from file, 'base64'
+	ftype = await fromBuffer fileBuffer
+	if not ftype then ftype = mime: 'file', ext: 'bin'
+	
+	randomName = Math.random().toString(36).slice(2)
+	fileName = "#{ftype.mime.split('/')[0]}-#{randomName}.#{ftype.ext}"
+	await fs.promises.writeFile "#{tmpFolder}/#{fileName}", fileBuffer
 		
-		res.json
-			name: fileName,
-			size:
-				bytes: fileBuffer.length
-				readable: bytes(fileBuffer.length, unitSeparator: ' ')
-			,
-			type: ftype
-			url: "https://#{process.env.SPACE_HOST}/file/#{fileName}"
-
-app.listen 7860, -> console.log 'App running on port', 7860
+	res.json
+		name: fileName,
+		size:
+			bytes: fileBuffer.length,
+			readable: bytes fileBuffer.length, unitSeparator: ' '
+		,
+		type: ftype,
+		url: "https://#{process.env.SPACE_HOST}/file/#{fileName}"
+
+app.listen 7860, () -> console.log 'App running on port', 7860