gif download

+const aws = require('aws-sdk');
+const s3 = new aws.S3();
+
+exports.handler = async (event) => {
+    if(!event['queryStringParameters'] || !event['queryStringParameters']['id']) {
+        return {
+            statusCode: 400
+        }
+    }
+    
+    const id = event['queryStringParameters']['id'];
+    const data = await download(id);
+    
+    return {
+        statusCode: 200,
+        headers:{
+            "Content-Type":"image/gif"
+        },
+        isBase64Encoded:true,
+        body: data.Body.toString("base64")
+    }
+};
+
+const download = (id) => {
+    const bucket = 'gif-generator';
+    const path = `/gif/${id}.gif`;
+    const params = {
+        Bucket: bucket,
+        Key: path
+    }
+    return new Promise((resolve, reject) => {
+        s3.getObject(params, (err, data) => {
+            if(err){
+                console.log("download err");
+                console.log(err);
+                reject(err);
+            }else{
+                console.log("download success");
+                console.log(data);
+                resolve(data);
+            }
+        });
+    });
+}
\ No newline at end of file