To start provisioning API resources in the backend, go to your project directory and **execute the command**:

```bash
amplify add api
```

Enter the following when prompted:
```console
? Please select from one of the below mentioned services: 
    `REST`
? Provide a friendly name for your resource to be used as a label for this category in the project: 
    `api`
? Provide a path (e.g., /book/{isbn}): 
    `/todo`
? Choose a Lambda source 
    `Create a new Lambda function`
? Provide a friendly name for your resource to be used as a label for this category in the project: 
    `todo`
? Provide the AWS Lambda function name: 
    `todo`
? Choose the function runtime that you want to use: 
    `NodeJS`
? Choose the function template that you want to use: 
    `Serverless ExpressJS function (Integration with API Gateway)`
? Do you want to access other resources created in this project from your Lambda function? 
    `No`
? Do you want to invoke this function on a recurring schedule? 
    `No`
? Do you want to edit the local lambda function now?
    `No`
? Restrict API access 
    `No`
? Do you want to add another path? 
    `No`
```

To push your changes to the cloud, **execute the command**:

```bash
amplify push
```

Upon completion, `amplifyconfiguration.dart` should be updated to reference provisioned backend storage resources.  Note that this file should already be a part of your project if you followed the [Project setup walkthrough](/lib/project-setup/create-application).