Christian Weyer @christianweyer CTO Serverless Azure Event-based Microservices - beyond just Functions Azure Saturday 2018 

2 § Founder & CTO at Thinktecture AG § Personal focus on § Mobile & web-based application architectures § Interoperability, cross-device § Pragmatic end-to-end solutions § Cloud-native & serverless architectures § Independent Microsoft Regional Director § Microsoft MVP for ASP.NET (Architecture) ASPInsider, AzureInsider § Google GDE for Web Technologies § [email protected] § ! @christianweyer Christian Weyer Event-based Microservices - beyond just Functions Serverless Azure 

3 Let’s start with a demo ! Event-based Microservices - beyond just Functions Serverless Azure 

4 § Serverless ? § Serverless Compute § Serverless Database § Serverless Eventing Serverless Azure Event-based Microservices - beyond just Functions The Journey 

5 Building & integrating software Microservices architectures (virtual introduction !) Event-based Microservices - beyond just Functions Serverless Azure 

6 A different approach Serverless Event-based Microservices - beyond just Functions Serverless Azure 

7 § We can choose from a continuum § VM ➔ § Containers ➔ § Orchestrators ➔ § PaaS ➔ § Serverless Event-based Microservices - beyond just Functions Evolution to Cloud Compute Continuum PaaS IaaS On-Premises Serverless Serverless Azure 

8 What is Serverless, anyway? Event-based Microservices - beyond just Functions Serverless Azure 

9 § Serverless Compute → Azure Functions § Serverless Database → Azure Cosmos DB § Serverless Events → Azure Event Grid § Serverless Realtime → Azure SignalR Service § Serverless Workflows → Azure Durable Functions & Azure Logic Apps § Serverless IoT → Azure IoT Hub § Serverless Analytics → Application Insights ... and more: https://azure.microsoft.com/en-us/overview/serverless-computing/ Event-based Microservices - beyond just Functions Serverless in Azure (Serverless != FaaS-only) Serverless Azure 

10 Serverless Home Automation Demo Scenario Event-based Microservices - beyond just Functions Serverless Azure 

Demo Scenario: Serverless Home Automation Event-based Microservices - beyond just Functions Serverless Azure Event Hub IoT Hub Cosmos DB App Service 

12 Azure Functions Serverless Code / Compute Event-based Microservices - beyond just Functions Serverless Azure 

13 § Azure Functions is code being triggered by an event § Focused code + events § Basic principles enable powerful use cases § Events ➔ Triggers § Bindings § Two ways of operation § Cost-optimized, automatic scale § Always-on, via Azure App Service § V2 runtime built on .NET Core § Available for self-hosting Event-based Microservices - beyond just Functions Azure Functions: Functions-as-a-Service Serverless Azure 

14 § In portal, via CLI, or in IDE § Visual Studio wizards for pre-compiled Functions § Local tooling & runtime available § Debugging locally or remote § Multiple language bindings supported § C# & C# Script (CSX) § F# § JavaScript, TypeScript (node.js) § Java (preview) § Bash, Batch, PowerShell § … more planned Event-based Microservices - beyond just Functions Developing Functions Serverless Azure 

15 § Incoming event triggers function § Input bindings enable easy access to data from various data sources § Output bindings offer easy access to outbound data sinks § Custom triggers and bindings can be implemented Event-based Microservices - beyond just Functions Triggers & Bindings Serverless Azure Your code logic Runtime Azure Function HTTP Trigger Storage Input Binding Push Notification Output Binding Database Output Binding Email Output Binding 

16 Event-based Microservices - beyond just Functions Triggers & Bindings in Code Serverless Azure 

17 Event-based Microservices - beyond just Functions Serverless Azure https://docs.microsoft.com/en-us/azure/azure-functions/functions-triggers-bindings Triggers & Bindings 

18 Azure Cosmos DB Serverless Database Event-based Microservices - beyond just Functions Serverless Azure 

19 § Globally distributed, elastically scalable § Fully managed by Azure § Multi-model database § Key-value, document, graph § Multiple APIs § DocumentDB, with SQL & JS APIs § MongoDB API § Cassandra API § Table Storage API § Graph Database with Gremlin API § No database schema management Event-based Microservices - beyond just Functions Cosmos DB: A Database with Many Faces Serverless Azure 

20 § Building event-driven architectures with Cosmos DB § Use as input binding in Functions § Subscribe to collection changes § Can be used as a trigger for Functions Event-based Microservices - beyond just Functions Cosmos DB Change Feed Serverless Azure 

21 Azure Event Grid Serverless Eventing Event-based Microservices - beyond just Functions Serverless Azure 

22 § Fully-managed centralized event routing service § Simplifies development of event-based applications § Simplifies creation of serverless workflows § Manages all routing of events § From any source, to any destination, for any application § Eventing, not enterprise messaging § Supports direct event filtering using event type, prefix or suffix § Your application will only need to receive the events you care about § Same underlying model for different use-cases § System-provided events § Custom application-specific events Event-based Microservices - beyond just Functions Event Grid Serverless Azure 

23 Event Grid Reliability & Performance Event-based Microservices - beyond just Functions Serverless Azure 

24 Summary Event-based Microservices - beyond just Functions Serverless Azure 

25 § Serverless is just one option in the Cloud Continuum § Always think about the use cases and requirements § Think in events & triggers! § Serverless Azure tries to offer solutions in the Continuum – mixture of PaaS & FaaS § Functions § Cosmos DB § Event Grid § SignalR Service § … & more § It is not about Windows & .NET - it is about any OS, any platform, any language – any solution J Summary Event-based Microservices - beyond just Functions Serverless Azure 

26 § Processing 100,000 Events Per Second on Azure Functions § https://blogs.msdn.microsoft.com/appserviceteam/2017/09/19/processing- 100000-events-per-second-on-azure-functions/ § Azure Functions – Significant Improvements in HTTP Trigger Scaling § https://www.azurefromthetrenches.com/azure-functions-significant- improvements-in-http-trigger-scaling/ Serverless Azure Event-based Microservices - beyond just Functions Interesting reading 

Serverless Azure Event-based Microservices - beyond just Functions Christian Weyer @christianweyer [email protected] Thank you! https://github.com/thinktecture/azuresaturday-2018-serverless