TechTalk - Building Serverless Applications with IBM Bluemix
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Transcript of TechTalk - Building Serverless Applications with IBM Bluemix
![Page 1: TechTalk - Building Serverless Applications with IBM Bluemix](https://reader035.fdocuments.in/reader035/viewer/2022081323/5a64787d7f8b9a57568b45a1/html5/thumbnails/1.jpg)
Developing ServerlessApplications with IBM Bluemix
Janakiram MSVjanakiram.com
Tech Talk Webinar Show
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Agenda
• What is Serverless Computing?• Introduction to IBM Cloud Functions• Creating Actions, Triggers, and Rules• Exploring Packages• Understanding Sequences• Building an end-to-end Serverless Application
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Serverless Computing
• Emphasis on code snippets than servers or platforms
• Execute code without the need to provision resources
• Function as a fundamental unit of deployment• Functions as a Service (FaaS)
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What is OpenWhisk?
• Originally developed at IBM as a part of Bluemixportfolio
• Donated to Apache Foundation• Currently an incubation project at Apache• One of the most mature open source FaaS projects• Commercially available as IBM Cloud Functions, a
hosted service on Bluemix• Integrated with core building blocks of Bluemix
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What is OpenWhisk?
• Runs functions in response to events from web or mobile apps
• Functions can be directly invoked via HTTP• Code executes in response to• HTTP call• Database state change• File uploaded to object storage• Many other event triggers…
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OpenWhisk Architecture
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OpenWhisk Programming Model• Services define the events they emit as triggers, and developers
associate the actions to handle the events via rules
• The developer only needs to care about implementing the desired application logic - the system handles the rest
T A R
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DemoHello World with IBM Cloud Functions
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Exploring Packages
• Packages bundle related actions together• Each Package contains• Action• Feed
• IBM Cloud Functions include many pre-defined Packages
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Exploring Packages
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DemoExploring Weather Package
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Exploring Sequences
T A1 A2
Sequences are a series of actions chained togetherResembles Unix Pipes
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DemoExploring Sequences
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Building an End-to-End Scenario
Database Read Log Order
Notify High-Value Order
New Record
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DemoBuilding Serverless Notification for Cloudant
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Thank You!
Janakiram MSVjanakiram.com
https://github.com/janakiramm/techtalk