Functions to be implemented To implement this project, you need to implement the following functions and configure them in the serverless.yml file:

Auth - this function should implement a custom authorizer for API Gateway that should be added to all other functions.

GetCars - should return all Cars for a current user. A user id can be extracted from a JWT token that is sent by the frontend It should return data that looks like this:

{ "items": [ { "CarId": "123", "createdAt": "2019-07-27T20:01:45.424Z", "name": "Buy milk", "dueDate": "2019-07-29T20:01:45.424Z", "done": false, "attachmentUrl": "http://example.com/image.png" }, { "CarId": "456", "createdAt": "2019-07-27T20:01:45.424Z", "name": "Send a letter", "dueDate": "2019-07-29T20:01:45.424Z", "done": true, "attachmentUrl": "http://example.com/image.png" }, ] }

CreateCar - should create a new Car for a current user. A shape of data send by a client application to this function can be found in the CreateCarRequest.ts file It receives a new Car item to be created in JSON format that looks like this:

{ "createdAt": "2019-07-27T20:01:45.424Z", "name": "Buy milk", "dueDate": "2019-07-29T20:01:45.424Z", "done": false, "attachmentUrl": "http://example.com/image.png" } It should return a new Car item that looks like this:

{ "item": { "CarId": "123", "createdAt": "2019-07-27T20:01:45.424Z", "name": "Buy milk", "dueDate": "2019-07-29T20:01:45.424Z", "done": false, "attachmentUrl": "http://example.com/image.png" } }

UpdateCar - should update a Car item created by a current user. A shape of data send by a client application to this function can be found in the UpdateCarRequest.ts file It receives an object that contains three fields that can be updated in a Car item:

{ "name": "Buy bread", "dueDate": "2019-07-29T20:01:45.424Z", "done": true } The id of an item that should be updated is passed as a URL parameter. It should return an empty body.

DeleteCar - Should delete a Car item created by a current user - Delete S3 bucket object belong to this Car item (if exist). Expects an id of a Car item to remove. It should return an empty body.

GenerateUploadUrl - returns a pre-signed URL that can be used to upload an attachment file for a Car item. It should return a JSON object that looks like this:

{ "uploadUrl": "https://s3-bucket-name.s3.eu-west-2.amazonaws.com/image.png" } All functions are already connected to appropriate events from API Gateway.

An id of a user can be extracted from a JWT token passed by a client.

You also need to add any necessary resources to the resources section of the serverless.yml file such as DynamoDB table and S3 bucket.