Serverless Functions

Apr 13, 2020
Apr 22, 2020

server-side code without having to run a dedicated server. Function as A Servidce - FaaS

are a lightweight, event-based, asynchronous compute solution that allows you to create small, single-purpose functions that respond to cloud events without the need to manage a server or a runtime environment
Function Triggers, like HTTP trigger function
- Work in sync with PUB/SUB event pipelines topics
- Cloud Events
- Authentication success/failure
- File uploaded to store
Providers
- Google Cloud Functions - needs Billing, not free
- python, node 6, go, java supported
use them as a glue b/w other fucntions and services
Why not add entire App? Why only restrict to fucntions?
- Fucntons as a abstraction, microservices
No need to worry about server scaling

Use Cases

Focus on Business Value

Disploy Business Logic as a FaaS, emojinizer app
- upload photo, replace faces with emoji
- same service for cell phone, web, other devices
Monitor your serves using serverless, VM going down
IoT temperature sensors
Chaining multiple fucntions
Cloud fucntions for firebase
Text messages
Chat bot with dialogues
Payment with stripes

Netlify lets you deploy serverless Lambda functions¹ without an AWS account, and with function management handled directly within Netlify.
Currently, you can deploy serverless functions¹ built with JavaScript and Go
trigger serverless function calls when certain Netlify events happen
- deploy-succeeded
- submission-created
- identity-login

Place all functions in a directory
Let netlify bot know where to look for functions either via netlify.toml or through UI
create a JavaScript file which exports a handler method.

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