Enhance your app's backend with Cloud Functions for Firebase (ServerlessDays Hamburg 2019)

Transcript

1. Enhance your app's
   backend with Cloud
   Functions for Firebase
   Doug Stevenson
   @CodingDoug
   Codelab: bit.ly/cf3-codelab
   

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2. @CodingDoug
   bit.ly/what-is-firebase
   

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3. @CodingDoug
   serverless / JavaScript / node.js
   

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4. @CodingDoug
   Cloud Functions is a Google Cloud product
   

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5. @CodingDoug
   Firebase adds tools and APIs
   

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6. @CodingDoug
   What is “serverless”?
   ● Servers (!!)
   ● No maintenance
   ● Automatic scaling up and down
   ● Pay only for what you use
   ● Event-driven
   

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7. @CodingDoug
   Cloud Functions is event-driven
   Cloud
   Functions
   event providers
   Cloud
   Storage
   Firebase
   Auth
   Crashlytics
   Cloud
   Firestore
   function (event) {
   doStuff(event)
   }
   trigger
   emit events
   

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8. @CodingDoug
   Cloud Functions scales up and down with load
   Cloud
   Functions
   function (event) {
   doStuff(event)
   }
   

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9. @CodingDoug
   Cloud Firestore
   Firebase Crashlytics
   Firebase Authentication
   Firebase Realtime Database
   HTTPS endpoints
   Cloud Pub/Sub
   Cloud Storage
   Google Analytics for Firebase
   Event providers
   

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10. @CodingDoug
    Why use Cloud Functions?
    ● Don’t repeat yourself.
    ○ Share common app logic between app platforms.
    ● Be fast and reliable.
    ○ Offload work to be done in the background.
    ● Don’t trust the user’s device.
    ○ Secure your sensitive code.
    

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11. @CodingDoug
    When NOT to use Cloud Functions?
    ● Your app can’t tolerate “cold start” times.
    ○ Instead, maintain your own servers 24/7.
    ● You have heavyweight work to do ( > 9 min, > 2GB mem/disk )
    ○ Delegate work to App Engine or Compute Engine
    ● You need to keep a socket open or do streaming
    ○ No easy alternative
    

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12. @CodingDoug
    Resources
    What is Firebase? bit.ly/what-is-firebase
    Cloud Functions docs bit.ly/cf3-docs
    Video tutorials bit.ly/cf3-videos
    Sample code bit.ly/cf3-samples
    Codelab bit.ly/cf3-codelab
    My samples gist.github.com/CodingDoug
    

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13. @CodingDoug
    Resources
    Universal translator code github.com/CodingDoug
    

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14. Thank you!
    @CodingDoug
    firebase.google.com
    

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