text: import handler from "./libs/handler-lib";
  import dynamoDb from "./libs/dynamodb-lib";
  
  export const main = handler(async (event, context) => {
      const params = {
          TableName: process.env.tableName,
  
          Key: {
              userId: event.requestContext.identity.cognitoIdentityId,
              noteId: event.pathParameters.id
          }
      };
      const result = await dynamoDb.get(params);
      if ( ! result.Item) {
          throw new Error("Item not found.");
      }
      return result.Item;
  });