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Building Serverless Web Applications
with OpenWhisk
bluemix.net/openwhisk
Niklas Heidloff, IBM Developer Advocate
@nheidloff
July 2017
What is ‘Serverless’ and ‘Function as a Service’ ?
Serverless
• Existence of servers is hidden from developers
• Code is executed on-demand in an auto-scaled, managed environment through event driven triggers
• Encourages and simplifies developing microservice-oriented solutions via functions
@nheidloff
Why Serverless for Web Applications ?
Serverless
• Often cheaper than other server-side compute options since you only pay for the exact duration your code is executing
• Easier to operate than other compute options – Example: Auto-scalability – Example: Built-in API management
• Serverless functions can be built with JavaScript skills which web developers have
@nheidloff
Apache OpenWhisk
Serverless
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Demos
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• Creation of simple JavaScript actions
• Web actions for anonymous access
• API management, including OAuth access
• Angular application accessing protected action
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Annotations in orange
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@nheidloff
Create JavaScript Action
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@nheidloff
Synchronous Action
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@nheidloff
Asynchronous Action
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@nheidloff
Invocation Results
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@nheidloff
Local Development and CLI
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@nheidloff
Monitoring and Logs
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@nheidloff
Web Actions for anonymous Access
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@nheidloff
Built-in API Management
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@nheidloff
Require User Authentication
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@nheidloff
Analytics for APIs
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@nheidloff
API Explorer
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@nheidloff
Creation of Google Application
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@nheidloff
Simple Angular Sample App
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@nheidloff
Angular Code to invoke the login
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@nheidloff
Google Authentication OAuth Dance
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@nheidloff
Simple Angular Sample App
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@nheidloff
Angular Code to invoke Action
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@nheidloff
Simple Angular Sample App
Discussion
github.com/nheidloff/openwhisk-serverless-webapp heidloff.net
bluemix.net/openwhisk
Niklas Heidloff, IBM Developer Advocate
@nheidloff
July 2017
![Practical Tooling for Serverless Computing · OpenWhisk Functions PyWren [Limbdi] Docker-LimbCI Effe OpenLimbdi Lever OS Fission Funktion Kubeless Picisso Serverless Frimework [Limbdi,](https://img.dokumen.tips/doc/110x75/5ed79ab930ed446bab02c519/practical-tooling-for-serverless-computing-openwhisk-functions-pywren-limbdi-docker-limbci.jpg)
