Getting started - FaaS

Requisites

• a) Install Node
• b) Install Docker Desktop
• c) Install VS Code
• d) Install VS Code extensions
  • Docker or Docker explorer
  • Azure Functions Extension
• e) Install Azure Functions Core Tools: https://github.com/Azure/azure-functions-core-tools

NodeJS functions development

1. Init the function (choose Node->JavaScript)

func init MyToDoList --docker

2. Change Hello/function.json to be

"authLevel": "anonymous",

3. CD to folder and create new (HTTP trigger) and provide a name Hello

cd func new

4. Docker build & run

docker build --rm -f "javascript/MyToDoList/Dockerfile" -t mytodo-serverless:latest javascript/MyToDoList

docker run -p 8080:80

5. Optionally: Start the function locally

func start --build

5. Optionally, with Docker compose (required for MongoDBs)

   Building functions
   Step 1/6 : FROM microsoft/dotnet:2.2-sdk AS installer-env
   2.2-sdk: Pulling from microsoft/dotnet
   9a0b0ce99936: Pull complete
   db3b6004c61a: Pull complete
   f8f075920295: Pull complete
   6ef14aff1139: Pull complete
   c05081985e91: Pull complete
   6c5e96b85e8c: Pull complete
   d39c626fbbd1: Extracting [===========>                                       ]   67.4MB/300.7MB
   

Getting Started - Hello Mobile

Requisites

a) Install ngrok

NativeScript development

1. Install NativeScript CLI + init template

npm install -g nativescript

Then

$ npm install -g @vue/cli @vue/cli-init

2. Create a templated-app project

vue init nativescript-vue/vue-cli-template <project-name>

3. Go to project, install and run/preview it

• cd MyTodoApp
• npm install
• tns build ios
• tns preview
• tns run android

4. Run ngrok for HTTPS redirects (functions) and consume the endpoint in the VueJS/NativeScript

./ngrok http 8080 --host-header=localhost:8080

NativeScript recommended links:

• Try it online
• Documentation

RESTful-styled Serverless

Install MongoDB (Docker pull)

docker pull mongo:4.0.4 and docker run -d -p 27017-27019:27017-27019 --name mongodb mongo:4.0.4

Install from VS Code: - Azure Cosmos DB

Go to Azure extension -> CosmosDB Attached Databvase Accounts -> Attach Database Account

mongodb://127.0.0.1:27017

Other Docker commands

docker system prune

Functions reference

Azure Functions - Node

FunctionApp
 | - host.json
 | - myNodeFunction
 | | - function.json
 | - lib
 | | - sayHello.js
 | - node_modules
 | | - ... packages ...
 | - package.json

Docker documentation

• Docker Compose enviroment variables

Publish functions

func azure functionapp publish <YourFunctionAppName> --publish-local-settings -i --overwrite-settings -y

Azure Functions Hosting Plans

https://docs.microsoft.com/en-us/azure/azure-functions/functions-scale

SignalR

https://github.com/aspnet/AzureSignalR-samples/tree/master/samples/SimpleEcho

Linux commands

ps aux kill -9 ID

Install Azure CLI Tools

sudo apt-get update sudo apt-get install azure-functions-core-tools