feat: Update .gitignore, add Lambda layer configuration, and refactor DynamoDB handlers to use AWS SDK v3

tasker-server/src/handlers/createUser.ts

@@ -1,32 +1,34 @@
 import { fetchRandomTeamId } from "@/lib/util";
-import { DynamoDB } from "aws-sdk";
+import { DynamoDBClient } from "@aws-sdk/client-dynamodb";
+import { DynamoDBDocument, PutCommandInput } from "@aws-sdk/lib-dynamodb";
 import { v4 as uuidv4 } from "uuid";
 
 const SLS_REGION = process.env.SLS_REGION;
 const TASKER_USER_TABLE_NAME = process.env.TASKER_USER_TABLE_NAME || "";
 
-const docClient = new DynamoDB.DocumentClient({ region: SLS_REGION });
+const client = new DynamoDBClient({ region: SLS_REGION });
+const docClient = DynamoDBDocument.from(client);
 
 export const handler = async (event: any): Promise<any> => {
-  const { username, cognitoId, profilePictureUrl = "i0.jpg" } = event.body;
+  const { username, cognitoId } = event.body;
   const teamId = fetchRandomTeamId();
 
   try {
     const newUser = {
-      type: "users",
+      category: "users",
       cognitoId,
       userId: `user#${uuidv4()}`,
       username,
-      profilePictureUrl,
+      profilePictureUrl: "i0.jpg",
       teamId,
     };
 
-    const params = {
+    const params: PutCommandInput = {
       TableName: TASKER_USER_TABLE_NAME,
       Item: newUser,
     };
 
-    await docClient.put(params).promise();
+    await docClient.put(params);
 
     return {
       status: 201,