Serverless Slack bot

Serverless slack bot @Hibob

Transcript

2. Private & Confidential 2 HIBOB.COM SORTING THE PEOPLE STUFF
3. Private & Confidential 3 HR Bob in a nutshell Digital Broker & All in one cloud-based platform for SMEs
4. Private & Confidential 4 Employee Engagement . Leveraging the platforms Buying power. Up-selling private insurance. Bob in a nutshell
5. The mission Slack service @hibob Serverless framework Benefits Challenges The Agenda
6. Build a Slack Service Simple setup Fast development Easy to onboard new team members The Mission
7. Slack service @hibob
8. The Serverless framework Cli tool(Nodejs) Cloudformation based Supports multiple regions Supports multiple Stages per region Can deploy all(function) or only one of them Versioning and Rollback supported. Support environments variables for each environment
9. Serverless 101 Serverless.yml file (config) Function Handlers (code)
10. Serverless.yml(config) file service: hello-lambda provider: name: aws runtime: nodejs4.3 # (Support LTS versions) functions: hello: handler: handler.hello memorySize: 1524 # optional, default is 1024 timeout: 10 # timeout in secs events: - http: #other events: S3, schedule, sns, DynamoDbStream, alexaSkill, IOT path: users/create method: get custom: FOO: BAR resources: … # CloudFormation resource templates
11. The function • Event - event data to the handler • Context - runtime information • Callback - optional callback to return information to the caller
12. The Serverless framework - deployment $ serverless deploy Serverless.yml Zip Cloudformation update Update Lambda
13. Other frameworks Apex Aws SAM And many more!
15. Slack - OAuth
16. Slack - Scopes 1. Webhook - url that you can post messages to 2. Command - invoke request for data (e.g /giphy ) 3. Bot - read your channel data
17. Slack Service - OAuth
18. Slack Service - Webhooks(Cron)
19. Slack Service - Command
20. Slack Service - Command
21. Serverless Slack Service - Benefits Cost effective Fast development Infinite scale Easy setup Easy onboarding new team members
22. Pitfalls
23. Pitfall #1 - Submit request only after long live token
24. Pitfall #2 - Use Lambda Proxy integration
25. Pitfall #3 - Node.Js On lambda Aws Lambda support only LTS version Keep the setup simple - avoid babel/webpack if you can
26. Challenges Unit / Integration testing Debug Development flow in teams Service discovery Architecture Communication with other lambdas Cold starts Monitoring/Health checks
27. Questions?