Slides from the presentation in the inserverless conference. For issues in code comment directly in github repo.

1. SERVERLESS IN
AZURE
Veresh Jain
@vereshjain

2. Application Development Evolution
IAAS
Container
PAAS
FAAS
Logic App
Service
Fabric

3. Azure Functions
■ Function as a Service (FAAS)
■ Azure Functions is the glue and enabler for
Serverless
■ Azure Functions provides Event Driven
programming model
– Invocation is from a service trigger
■ Azure Function cost model
– Number of Invocations + Amount of
data used per second
■ Supports most programming languages
Javascript, Java, C# …

4. Azure Functions Constructs
■ Triggers
– Invokes Azure Functions on changes in the services
– Act as Events for all the functions
■ Input
– Provides a declarative way to access data during
computation
■ Bindings
– Invoked by Azure Functions for persisting data or
updating downstream processes
Triggers Input Bindings
■ Deployment Slots
– Switch the environments
■ HTTP Proxies
– For routing the HTTP traffic

5. Azure
Functions

6. Demo
■ Use Case
– Upload an image
– Crop and store the image for downstream processes
– Extract properties of the image e.g. background, foreground, dominant color etc and
send email once all processing completed
■ Demo Application usesAzure functions for processing
– Function for image metadata extraction
– Function for image cropping
– Function to check status of processing and send email
■ Function stores the data in CosmoDB
■ Crop Image and Image MetaData Services uses Azure ComputerVisionAPI’s
■ Email sent via SendGrid

8. ■ Source code for same can be downloaded from
– https://github.com/veresh/azure-functions-serverless
■ For issues in getting code from the repo, please leave comment in the Repo.

9. ■ Veresh Jain
■ @vereshjain
■ https://www.linkedin.com/in/vereshjain/