Building serverless applications on azure
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This document contains information about Joe Raio who is a Senior Technical Evangelist at Microsoft. It includes his contact information and details that he is based in Miami, FL and has passions for music, space, aviation and technology. The document also contains code examples for Azure Functions that use bindings and triggers to process images and queue items with JSON payloads. Links are provided to resources for building serverless applications with Azure Functions.
![{
"bindings": [
{
"name": "myQueueItem",
"type": "queueTrigger",
"direction": "in",
¡°queueName": "outputqueue",
"connection": "AzureWebJobsStorage"
},
{
"type": "blob",
"name": "outputBlob",
"path": "outblob/{rand-guid}.txt",
"connection": "AzureWebJobsStorage",
"direction": "out"
}
]
}
module.exports = function (context, myQueueItem, myOutputBlob) {
context.log('JavaScript queue trigger function ', myQueueItem);
//validate
if (myQueueItem.apiId && myQueueItem.method && myQueueItem.body)
{
const value = DoWork(myQueueItem);
if(value) {
context.bindings.myOutputBlob = JSON.stringify(value);
//myOutputBlob = JSON.stringify(value);
}
}
else {
//handle error queue item missing params
context.log('invalid queue item ', myQueueItem);
}
context.done();
}](https://image.slidesharecdn.com/buildingserverlessapplicationsonazure-170825162231/85/Building-serverless-applications-on-azure-9-320.jpg)
![public static void Run(byte[] image, string filename,
Stream outputBlob, TraceWriter log)
{
log.Info($"Processing image: {filename}");
var imageBuilder = ImageResizer.ImageBuilder.Current;
imageBuilder.Build(
image, outputBlob,
new ResizeSettings(640, 400, FitMode.Max, null), false);
}
{
"bindings": [
{
"name": "image",
"type": "blobTrigger",
"direction": "in",
"path": "card-input/{filename}.jpg",
"connection": "AzureWebJobsStorage"
},
{
"type": "blob",
"name": "outputBlob",
"path": "card-output/{filename}.jpg",
"connection": "AzureWebJobsStorage",
"direction": "out"
}
]
}](https://image.slidesharecdn.com/buildingserverlessapplicationsonazure-170825162231/85/Building-serverless-applications-on-azure-10-320.jpg)
Building serverless applications on azure
- 2. Joe Raio Senior Technical Evangelist Commercial Software Engineering joe.raio@microsoft.com @joescars github.com/joescars Based in Miami, FL United States. Proud father. Passions are Music, Space, Aviation & all things Technology
- 9. { "bindings": [ { "name": "myQueueItem", "type": "queueTrigger", "direction": "in", ¡°queueName": "outputqueue", "connection": "AzureWebJobsStorage" }, { "type": "blob", "name": "outputBlob", "path": "outblob/{rand-guid}.txt", "connection": "AzureWebJobsStorage", "direction": "out" } ] } module.exports = function (context, myQueueItem, myOutputBlob) { context.log('JavaScript queue trigger function ', myQueueItem); //validate if (myQueueItem.apiId && myQueueItem.method && myQueueItem.body) { const value = DoWork(myQueueItem); if(value) { context.bindings.myOutputBlob = JSON.stringify(value); //myOutputBlob = JSON.stringify(value); } } else { //handle error queue item missing params context.log('invalid queue item ', myQueueItem); } context.done(); }
- 10. public static void Run(byte[] image, string filename, Stream outputBlob, TraceWriter log) { log.Info($"Processing image: {filename}"); var imageBuilder = ImageResizer.ImageBuilder.Current; imageBuilder.Build( image, outputBlob, new ResizeSettings(640, 400, FitMode.Max, null), false); } { "bindings": [ { "name": "image", "type": "blobTrigger", "direction": "in", "path": "card-input/{filename}.jpg", "connection": "AzureWebJobsStorage" }, { "type": "blob", "name": "outputBlob", "path": "card-output/{filename}.jpg", "connection": "AzureWebJobsStorage", "direction": "out" } ] }
- 12. ¡.and more!
- 28. https://github.com/Azure/Azure-Functions Azure WebJobs SDK script Azure WebJobs SDK Azure WebJobs SDK extensions Azure Functions CLI Azure Functions Portal Azure Functions templates Azure Functions samples
Editor's Notes
- #3: What is a technical evangelist?
- #4: Serverless offerings @ Microsoft Azure Functions Logic Apps Event Grid Tooling Azure Portal Azure Functions Core Tools CLI Visual Studio (PCL) MAC Preview CI / CD Application Insights Roadmap / Features in Preview Proxies Durable Functions Event Grid API Versioning .NET Core and Java Support Resources Open Source & Communication Methods
- #7: TIME MARKER (COMPLETE SLIDE): 10:10 A.M. Talking Points: (Updated on 4/3/17) Lets talk about what really makes up MSFT¡¯s Serverless platform: At the center of the Serverless platform, is our compute offerings: Azure Functions and Azure Logic Apps. Azure Functions is an event based Serverless compute experience that helps you accelerate your development. Run time is open. Function code can be executed in vm or somewhere else, on prem or in clould. Logic Apps is a powerful orchestration tool. It enables building a Serverless app in minutes ¨C by orchestrating multiple functions using a visual workflow tool. Say you have your apps up and running using Serverless. Congratulations! You now need to collect intelligence from different apps across platforms to take actions upon. There are a few essential components which we think are core to building Serverless applications are: Data/ Storage ¨CFunctions has triggers and bindings with Azure document DB and Azure Blob storage ** Triggers: Triggers are event responses used to trigger your custom code. They allow you to respond to events across the Azure platform or on premise. ** Bindings: Bindings represent the necessary meta data used to connect your code to the desired trigger or associated input or output data. Messaging such as queues and topics using Azure Service Bus and Azure Event Hubs Integration ¨C that includes core LOB apps and SaaS apps integration via Azure Logic Apps. Intelligence on data and sentiment/ predictive analysis using Cognitive services and Machine learning Conversation as a service ¨C how do we equip developers to build apps that offer an end-to-end experience for their end users ¨C Azure Bot Service offers a Serverless interactive bot experience. More, developers are spending more time writing code that allows them to add huge business impact with Serverless. MSFT offers numerous development tools such as IDE Support for Visual Studio in functions and Logic Apps, enables local development (vs web browser coding environment), visual debugging capability, all with your tools of choice. Lastly, I also want to highlight top scenarios and use cases for Serverless: Real-time Stream analytics: Customers can use Functions to feed real-time streams of data from application tracking into structured data and store it in SQL online. SaaS event processing: Customers can use Functions and Logic Apps to analyze data from an excel file in Onedrive and perform validation, filtration, sorting and convert data into consumable business charts Web app architecture: Used a lot in creating targeted marketing collaterals ¨C when a customer clicks on a webpage, it triggers a webhook, that uses a function to create an ad that matches the customer profile and displays a completed webpage. Real-time bot messaging: When customers send a message to a chatbox, Functions calls Cortana analytics to generate appropriate answers and sends a response back. //from before: Customers have different paths to build a Serverless app ¨C start by building the distributed application components using functions by leveraging the numerous templates and declarative bindings Or Start with the workflow and orchestration of Serverless application using Azure Logic Apps. The visual designer enables developers to quickly and easily author, edit and visualize orchestration of multiple functions and workflow.
- #8: Languages: ?C#, F#, Node.js, Python, PHP, batch, bash, R, Java, TypeScript
- #9: Azure Functions supports many more bindings, triggers and languages Python, Batch, PHP, PowerShell
- #10: The difference between trigger and binding¡
- #11: Binding gives you access to the underlying api without having to use the SDK
- #13: This is the whole (top level) Dev Ops story where Dev build wounderful apps, using CI they mange their code, builds, and releases. Connecting to a repository, they can deploy to Azure Websites, build in the cloud, deploy to a slot to test and validate, swap into production, deployed across the globe as needed, monitor and get feedback, on which devs can make updates. Rinse and repeat
- #14: -Started with BizTalk server (in for 17 years) ¨C how can we move things faster between enterprise integration? LogicApps was born out 100% out of Azure. -how to reduce integration from weeks/months to days?
- #15: *Over 150 now?
- #16: Call out that we now support stored procs on-prem
- #17: Logic Apps can integrate with ¡°anything¡± (APIs) and solve small or complex problems. Automation in a secure and reliable environment fast and easy. Connect Anything: On-premises, hybrid and cloud Mission critical, complex integration scenarios Business productivity Agile Business: Quickly create workflows Position to the future API centric Transform Business: Extract value from both (on-premises and cloud apps) Build Holistic integration solutions.
- #19: Event Grid - Azure Event Grid allows you to easily build applications with event-based architectures. You select the Azure resource you would like to subscribe to, and give the event handler or WebHook endpoint to send the event to. Event Grid has built-in support for events coming from Azure services, like storage blobs and resource groups. Event Grid also has custom support for application and third-party events, using custom topics and custom webhooks.
- #26: Uses binding attributes
- #28: Event Grid - Azure Event Grid allows you to easily build applications with event-based architectures. You select the Azure resource you would like to subscribe to, and give the event handler or WebHook endpoint to send the event to. Event Grid has built-in support for events coming from Azure services, like storage blobs and resource groups. Event Grid also has custom support for application and third-party events, using custom topics and custom webhooks. Durable Functions ¨C Alpha Preview - With Durable Functions, we let you write orchestrators and activities as Functions. Orchestrators can call Activity Functions and wait for an external event. Activity Functions can be written in any language and don¡¯t have any restrictions on them that normal functions don¡¯t have. Combined, this functionality allows a lot of complex patterns to be expressed via code.? API Versioning -
- #30: TIME MARKER: 11:20 A.M.
- #38: FaaS ¨C Functions as a Service
- #39: Abstraction of servers, infrastructure and configuration of operating system Event-driven scale Sub-second billing Stateless Serverless compute is a fully managed service. Some refer to it as Functions as a Service OS and Framework patching is performed for you There is zero administrative tasks and no need to manage any infrastructure You just deploy your code (function) and it runs Your code runs within seconds and for very short period of time Serverless compute scales quickly (almost instantly) and vastly Automatically scales within seconds No scale configuration is required (there is no way to configure scale or limits) Scales to match any given workload. Scales from zero to handle tens of thousands concurrent functions invocations within seconds Pay only for the time your code is running Serverless compute reacts to events React, in near real-time, to events and triggers Triggered by virtually any event from Azure service or 3rd party services Setup time, provisioning is long & costly
- #40: ¡°Pinnacle of PaaS compute¡± Not just hardware ¡°servers¡±, but software servers are also managed for you Focus on business logic, not solving technical problems not core to business Lower effort to get started makes it easier to experiment (bots, etc.) Benefits of ¡°Serverless¡±
- #41: Bindings abstract away where the data is coming to Logic Apps Programming free paradigm with a visual designer, drag and drop workflows With Connectors to different types of services (eg an FTP server) Talking Points: (Updated on 4/3/17) Lets talk about what really makes up MSFT¡¯s Serverless platform: At the center of the Serverless platform, is our compute offerings: Azure Functions and Azure Logic Apps. Azure Functions is an event based Serverless compute experience that helps you accelerate your development. Run time is open. Function code can be executed in vm or somewhere else, on prem or in clould. Logic Apps is a powerful orchestration tool. It enables building a Serverless app in minutes ¨C by orchestrating multiple functions using a visual workflow tool. Say you have your apps up and running using Serverless. Congratulations! You now need to collect intelligence from different apps across platforms to take actions upon. There are a few essential components which we think are core to building Serverless applications are: Data/ Storage ¨CFunctions has triggers and bindings with Azure document DB and Azure Blob storage ** Triggers: Triggers are event responses used to trigger your custom code. They allow you to respond to events across the Azure platform or on premise. ** Bindings: Bindings represent the necessary meta data used to connect your code to the desired trigger or associated input or output data. Messaging such as queues and topics using Azure Service Bus and Azure Event Hubs Integration ¨C that includes core LOB apps and SaaS apps integration via Azure Logic Apps. Intelligence on data and sentiment/ predictive analysis using Cognitive services and Machine learning Conversation as a service ¨C how do we equip developers to build apps that offer an end-to-end experience for their end users ¨C Azure Bot Service offers a Serverless interactive bot experience. More, developers are spending more time writing code that allows them to add huge business impact with Serverless. MSFT offers numerous development tools such as IDE Support for Visual Studio in functions and Logic Apps, enables local development (vs web browser coding environment), visual debugging capability, all with your tools of choice. Lastly, I also want to highlight top scenarios and use cases for Serverless: Real-time Stream analytics: Customers can use Functions to feed real-time streams of data from application tracking into structured data and store it in SQL online. SaaS event processing: Customers can use Functions and Logic Apps to analyze data from an excel file in Onedrive and perform validation, filtration, sorting and convert data into consumable business charts Web app architecture: Used a lot in creating targeted marketing collaterals ¨C when a customer clicks on a webpage, it triggers a webhook, that uses a function to create an ad that matches the customer profile and displays a completed webpage. Real-time bot messaging: When customers send a message to a chatbox, Functions calls Cortana analytics to generate appropriate answers and sends a response back. //from before: Customers have different paths to build a Serverless app ¨C start by building the distributed application components using functions by leveraging the numerous templates and declarative bindings Or Start with the workflow and orchestration of Serverless application using Azure Logic Apps. The visual designer enables developers to quickly and easily author, edit and visualize orchestration of multiple functions and workflow.