The document discusses how to use various AWS services like Cognito, S3, Lambda, and API Gateway from an iOS application using the AWS SDK for iOS. It provides code snippets for creating an identity pool in Cognito, storing and retrieving data from Cognito Sync, uploading files to S3, invoking Lambda functions, and generating an iOS SDK for a API Gateway API.

1. AWS
SDK for iOS
Cognito/S3/Lambda/API Gateway/Facebook

2. Create an Identity Pool

3. Create an IAM role for the process that uses Cognito

4. A sample Objectie-C code will be present.
IdentityPoolId is the api key to access Cognito
Pod file for AWS SDKs

5. Access to Cognito and put a key-value in Cognito sync
Store a key-value in a Cognito Sync.

6. You can browse the Cognito Sync DB
IdentityId
key-value is stored in sync

7. AWSCognitoRecord
Retrieve records and key-value
key: record.recordId
val: record.data.string

8. Accessing S3 bucket
http://docs.aws.amazon.com/mobile/sdkforios/
developerguide/getting-started-s3.html
Add an IAM policy to access S3

9. Accessing S3 bucket
Upload a file to a S3 bucket with a block(AWSTask).

10. Lambda
Add a policy to allow Cognito to do Lambda InvokeFunction

11. Invoke a lambda function called ‘myFunc123’.

12. Retrieve a caller’s Cognito Identity ID in a Lambda function.

13. API Gateway
http://docs.aws.amazon.com/apigateway/latest/developerguide/
how-to-generate-sdk.html#how-to-generate-sdk-ios
From Stages menu, generate an iOS SDK.

14. Response Model - CLIProduct

15. Insert ‘AWSAPIGateway’ into Podfile.
> pod update
Install the SDK - AWSAPIGateway

16. Copy the generated files to your project.
The wrapper method for Your API
The wrapper class for
the JSON response.