TechDays Sweden - Creating real-life serverless solutions with Azure Functions
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This document summarizes a presentation about creating serverless solutions with Azure Functions. The presentation introduces serverless computing and containers. It then discusses using Azure Functions and Cosmos DB to build a URL shortening service similar to Bitly. The presentation provides best practices for Azure Functions and demonstrates using proxies and dependency injection. It encourages attendees to start coding Functions and asks for any other questions.
![@Jan_de_V
function.json
"bindings": [
{
"type": "httpTrigger",
"route": "{slug}",
"methods": [
"get"
],
"authLevel": "anonymous",
"name": "req"
}
],](https://image.slidesharecdn.com/techdays-creatingreal-lifeserverlesssolutionswithazurefunctions-181025083557/85/TechDays-Sweden-Creating-real-life-serverless-solutions-with-Azure-Functions-16-320.jpg)
![@Jan_de_V
"bindings": [
{
"name": "minifiedUrl",
"type": "documentDB",
"databaseName": "MinifyRepository",
"collectionName": "MinifiedUrls",
"createIfNotExists": true,
"connection": "CosmosDbConnection",
"direction": "out"
}
],](https://image.slidesharecdn.com/techdays-creatingreal-lifeserverlesssolutionswithazurefunctions-181025083557/85/TechDays-Sweden-Creating-real-life-serverless-solutions-with-Azure-Functions-17-320.jpg)
![@Jan_de_V
proxies.json
{
"$schema": "http://json.schemastore.org/proxies",
"proxies": {
"getminifiedredirect": {
"matchCondition": {
"methods": [ "GET" ],
"route": "/{slug}"
},
"backendUri": "https://%WEBSITE_HOSTNAME%/api/{slug}"
}
}
}](https://image.slidesharecdn.com/techdays-creatingreal-lifeserverlesssolutionswithazurefunctions-181025083557/85/TechDays-Sweden-Creating-real-life-serverless-solutions-with-Azure-Functions-36-320.jpg)
TechDays Sweden - Creating real-life serverless solutions with Azure Functions
- 1. Creating real-life serverless solutions with Azure Functions @Jan_de_V Jan de Vries Cloud Solution Architect
- 2. @Jan_de_V What is this serverless again?
- 3. @Jan_de_V Servers are still here Looks a lot like PaaS “If your PaaS can efficiently start instances in 20ms that run for half a second, then call it serverless.” Adrian Cockcroft - VP Cloud Architecture Strategy AWS
- 5. @Jan_de_V My real-life scenario! bit.ly but cheaper!
- 6. @Jan_de_V GET minified URL and redirect CREATE minified URL
- 8. @Jan_de_V
- 10. @Jan_de_V
- 11. @Jan_de_V Your legacy solution design
- 12. @Jan_de_V A modern and super scalable design!
- 13. @Jan_de_V
- 14. @Jan_de_V
- 16. @Jan_de_V function.json "bindings": [ { "type": "httpTrigger", "route": "{slug}", "methods": [ "get" ], "authLevel": "anonymous", "name": "req" } ],
- 17. @Jan_de_V "bindings": [ { "name": "minifiedUrl", "type": "documentDB", "databaseName": "MinifyRepository", "collectionName": "MinifiedUrls", "createIfNotExists": true, "connection": "CosmosDbConnection", "direction": "out" } ],
- 20. @Jan_de_V 1. One func, one thing
- 21. @Jan_de_V 2. Avoid funcs calling funcs
- 22. @Jan_de_V 3. Zero libs if possible
- 24. @Jan_de_V 5. One func per route
- 26. @Jan_de_V 7. Data flows not data lakes
- 27. @Jan_de_V 8. Know how it will scale
- 28. @Jan_de_V Paul Johnston • https://twitter.com/PaulDJohnston • https://medium.com/@PaulDJohnston/serverless-best-practices- b3c97d551535 • ServerlessDays CoFounder (Jeff) • ex AWS Serverless Senior Developer Advocate
- 29. @Jan_de_V Now, start coding some Functions Well…let’s wait a moment
- 30. @Jan_de_V Where to put the code?
- 31. @Jan_de_V Dependency injection? private readonly ICosmosClient cosmosClient; public CreateUrlHandler() { this.cosmosClient = new CosmosClient(); } public CreateUrlHandler(ICosmosClient cosmosClient) { this.cosmosClient = cosmosClient; }
- 33. @Jan_de_V
- 36. @Jan_de_V proxies.json { "$schema": "http://json.schemastore.org/proxies", "proxies": { "getminifiedredirect": { "matchCondition": { "methods": [ "GET" ], "route": "/{slug}" }, "backendUri": "https://%WEBSITE_HOSTNAME%/api/{slug}" } } }
- 38. @Jan_de_V Thank you! Please evaluate my session in the TechDays app!