gif upload

+const imports = require('./import')['import'];
+
+const Busboy = imports.Busboy;
+const UUID = imports.UUID;
+const aws = require('aws-sdk');
+const s3 = new aws.S3();
+
+exports.handler = async (event, context) => {
+    if(!event.body || !/^multipart\/form\-data/.test(event.headers['content-type'])) {
+        return {
+            statusCode: 400
+        }
+    }
+    
+	const formData = await parse(event);
+	
+	if(!formData['gif']) {
+	    return {
+	        statusCode: 400
+	    }
+	}
+    
+    const id = await upload(formData['gif']);
+    return {
+        statusCode: 200,
+        headers:{
+            "Content-Type":"json"
+        },
+        body: JSON.stringify({
+            id
+        }),
+    }
+}
+
+const parse = (event) => new Promise((resolve, reject) => {
+    const bodyBuffer = new Buffer(event.body.toString(), "base64");
+    
+    const busboy = new Busboy({
+        headers: {
+            'content-type': event.headers['content-type']
+        }
+    });
+    const formData = {};
+
+    busboy.on('file', (fieldname, file, filename, encoding, mimetype) => {
+        console.log('File [%s]: filename=%j; encoding=%j; mimetype=%j', fieldname, filename, encoding, mimetype);
+        const chunks = [];
+
+        file.on('data', data => {
+            chunks.push(data);
+        }).on('end', () => {
+            formData[fieldname] = {
+                name:filename,
+                data:Buffer.concat(chunks),
+                mimetype:mimetype
+            };
+            console.log("File [%s] finished.", filename);
+        });
+    });
+
+    busboy.on('field', (fieldname, value) => {
+        console.log("[" + fieldname + "] >> " + value);
+        formData[fieldname] = value;
+    });
+
+    busboy.on('error', error => {
+        reject(error);
+    });
+
+    busboy.on('finish', () => {
+        resolve(formData);
+    });
+
+    busboy.write(bodyBuffer, event.isBase64Encoded ? 'base64' : 'binary');
+    busboy.end();
+});
+
+const upload = ({data, mimetype}) => new Promise((resolve, reject) => {
+    const bucket = 'gif-generator';
+    const path = '/gif';
+    const id = UUID().replace(/\-/g, '');
+    const fileFullName = path + '/' + id + '.gif';
+    const params = {
+        Bucket: bucket, 
+        Key: fileFullName, 
+        Body: data, 
+        ContentType: mimetype
+    };
+    
+    s3.upload(params, (err, data) => {
+       if(err){
+           console.log("upload err");
+           console.log(err);
+           reject(err);
+       }else{
+           console.log("upload success");
+           console.log(data);
+           resolve(id);
+       }
+   });
+});
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