SFDC Platform Events using AWS Lambda

Content linked to presentation "Go Serverless with Salesforce Platform Events using AWS Lambda" first presented at London's calling in March 2020.

Data Process:

Records changes in Salesforce
Event is being published to Platform Event or CDC topic
AWS subscribes to Salesforce event and forwards it to SNS Event
Serverless Lambda function executes for every new event and processes data: a) Connect to other AWS Services b) Process Large volumes of data c) Callouts to other external systems d) Multi Programming Language

Identify objects/records which require external processing
Set up automation to fire events a) (High-Volumne) Platform Event + Automation c) Change Data Capture (CDC)
Set up Connected App to allow external connection / subscription
Create AWS Account
Create SNS Topic
Create AWS Lambda Subscriber function (via CometD to Event Bus) to republish to AWS SNS Topic (review /aws-src/sfdcCometdSubscriber)
Move Lambda Dependencies (node / npm) into a Lambda Layer (review and upload /aws-src/nforce-layer)
Add AWS Lambda Execute access to Role
Use Lambda Layers to handle Libraries (i.e. store ‘nForce’ - a nodeJS Salesforce)
Store SF Authentication in Env Vars
Schedule Lambda Subscriber Function every 15min
Go Serverless: Subscribe to AWS SNS Topic using Lambda (review /aws-src/sfdcProcessComprehend)
Lambda to handle Serverless processing