AWS: Events

Describe the similarities between AWS API Gateway + Lambda functions and an ExpressJS Server

They are both ways you can implement an API. Within an Express Server you define your routes and write the logic for them. With AWS API Gateway, you set up your routes and then implement the functionality using lamda functions.

List the AWS Database offerings and talk about the pros and cons of each

• AWS database offerings include:

• RDS

• DynamoDB

• ElastiCache

• Neptune

• Amazon QLDB

• Amazon DocumentDB

• Amazon Keyspaces

• Amazon Timestream

What’s the difference between a FIFO and a standard queue?

A FIFO queue is first in first out and a standard queue provides at least once delivery and isn’t neccessarily ordered.

How can the server be assured a message was properly received?

Logging and using timestamps and checking whether it was delivered based on the response sent from the endpoint.

Terms

Term	Def
Serverless API	An API that lives in the cloud and is created using cloud services.
Triggers	Essentially a connection between resources. When something happens to a resource, it triggers an action to be taken.
Dynamo vs Mongo	Dynamo is like the AWS version of Mongo. Mongo is open source and uses JSON objects, whereas Dynamo uses tables. MongoDB is less restrictive of data types and size.
Dynamoose vs Mongoose	Dynamoose is a modeling tool used for dynamo and mongoose is used for mongo.