Creating real life serverless solutions with Azure Functions
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This document discusses serverless computing and summarizes a presentation on URL minification using Azure Functions. Key points include: - Serverless computing is when applications are run in stateless, event-driven functions that are triggered by events like HTTP requests. - The presentation demonstrates creating a URL minification service using Azure Functions that stores minified URLs in Cosmos DB and redirects requests using proxies. - It discusses bindings and triggers, function authorization, and deploying the code to Azure.
!["bindings": [
{
"type": "httpTrigger",
"route": "{slug}",
"methods": [
"get"
],
"authLevel": "anonymous",
"name": "req"
}
],
Function, User, System & Admin](https://image.slidesharecdn.com/creatingreallifeserverlesssolutionswithazurefunctions-public-180223085521/85/Creating-real-life-serverless-solutions-with-Azure-Functions-23-320.jpg)
!["bindings": [
{
"name": "minifiedUrl",
"type": "documentDB",
"databaseName": "MinifyRepository",
"collectionName": "MinifiedUrls",
"createIfNotExists": true,
"connection": "CosmosDbConnection",
"direction": "out"
}
],](https://image.slidesharecdn.com/creatingreallifeserverlesssolutionswithazurefunctions-public-180223085521/85/Creating-real-life-serverless-solutions-with-Azure-Functions-24-320.jpg)
![{
"$schema": "http://json.schemastore.org/proxies",
"proxies": {
"getminifiedredirect": {
"matchCondition": {
"methods": [ "GET" ],
"route": "/{slug}"
},
"backendUri": "https://%WEBSITE_HOSTNAME%/api/{slug}"
}
}
}
Matching conditions](https://image.slidesharecdn.com/creatingreallifeserverlesssolutionswithazurefunctions-public-180223085521/85/Creating-real-life-serverless-solutions-with-Azure-Functions-33-320.jpg)
Creating real life serverless solutions with Azure Functions
- 3. servers
- 4. Like PaaS
- 5. “If your PaaS can efficiently start instances in 20ms that run for half a second, then call it serverless.” Adrian Cockcroft - VP Cloud Architecture Strategy AWS
- 8. Keep It Small and Simple
- 10. URL Minification
- 11. GET minified URL redirect CREATE minified URL
- 12. QueriesCommands Segregate all the Responsibilities
- 14. CosmosDB
- 15. Oh yeah!
- 17. Web App CosmosDB
- 23. "bindings": [ { "type": "httpTrigger", "route": "{slug}", "methods": [ "get" ], "authLevel": "anonymous", "name": "req" } ], Function, User, System & Admin
- 24. "bindings": [ { "name": "minifiedUrl", "type": "documentDB", "databaseName": "MinifyRepository", "collectionName": "MinifiedUrls", "createIfNotExists": true, "connection": "CosmosDbConnection", "direction": "out" } ],
- 25. Don’t write JSON
- 27. Where to put the code
- 28. private readonly ICosmosClient cosmosClient; public CreateUrlHandler() { this.cosmosClient = new CosmosClient(); } public CreateUrlHandler(ICosmosClient cosmosClient) { this.cosmosClient = cosmosClient; }
- 33. { "$schema": "http://json.schemastore.org/proxies", "proxies": { "getminifiedredirect": { "matchCondition": { "methods": [ "GET" ], "route": "/{slug}" }, "backendUri": "https://%WEBSITE_HOSTNAME%/api/{slug}" } } } Matching conditions