This document discusses serverless architectures and functions. It mentions that containers and CosmosDB can be used with serverless functions. Functions are triggered by HTTP requests and bindings are used to connect functions to CosmosDB and other services. Deployment slots and proxies are discussed as ways to deploy functions to production.

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

6. So, Containers?

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

19. CosmosDB
GET
POST

20. CosmosDB
GET
POST
Azure cache
UPDATE Change
Feed
Probably faster.....

21. CosmosDB
GET
POST
Azure cache
UPDATE
Change
Feed
Queue TRIGGER

22. Bindings & Triggers

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;
}

30. CosmosDB
GET
POST
Azure cache
UPDATE
Change
Feed
Queue TRIGGER

32. Easy mode

35. master branch
to production

36. Pro mode

39. Check if you use slots
Point to the correct package

43. https://my.jdv.li/api/minifiedurl
or
https://my.jdv.li/minifiedurl

44. {
"$schema": "http://json.schemastore.org/proxies",
"proxies": {
"getminifiedredirect": {
"matchCondition": {
"methods": [ "GET" ],
"route": "/{slug}"
},
"backendUri": "https://%WEBSITE_HOSTNAME%/api/{slug}"
}
}
}
Matching conditions

45. https://github.com/Jandev/minifier
@Jan_de_V
jandv@4dotnet .nl
https://jan-v.nl