01-func-start.sh

func start

02-run-function-app-in-bg.sh

# Run the function app in background
func start &

# Send request to the function app and save it to swagger.json
curl http://localhost:7071/api/swagger.json > swagger.json

# Read swagger.json
cat swagger.json

03-run-function-app-in-bg-on-non-windows.ps1

# Run the function app in background
Start-Process -NoNewWindow func @("start")

# Send request to the function app and save it to swagger.json
Invoke-RestMethod -Method Get -Uri http://localhost:7071/api/swagger.json | `
    ConvertTo-Json -Depth 100 | `
    Out-File -FilePath swagger.json -Force

# Read swagger.json
Get-Content -Path swagger.json

04-run-function-app-in-bg-on-windows.ps1

# Change the function app runner from .ps1 to .cmd
$func = $(Get-Command func).Source.Replace(".ps1", ".cmd")

# Run the function app in background
Start-Process -NoNewWindow "$func" @("start")

# Send request to the function app and save it to swagger.json
Invoke-RestMethod -Method Get -Uri http://localhost:7071/api/swagger.json | `
    ConvertTo-Json -Depth 100 | `
    Out-File -FilePath swagger.json -Force

# Read swagger.json
Get-Content -Path swagger.json

05-github-actions-workflow.yaml

name: Build

on:
  push:

jobs:
  build_and_test:
    name: Build
    runs-on: 'ubuntu-latest'

    steps:
    - name: Build solution
      shell: pwsh
      run: |
        pushd MyFunctionApp

        dotnet build . -c Release -v minimal

        popd

    - name: Generate OpenAPI document
      shell: pwsh
      run: |
        cd MyFunctionApp

        Start-Process -NoNewWindow func @("start","--verbose","false")
        Start-Sleep -s 60

        Invoke-RestMethod -Method Get -Uri http://localhost:7071/api/swagger.json | `
            ConvertTo-Json -Depth 100 | `
            Out-File -FilePath swagger.json -Force

        Get-Content -Path swagger.json -Raw

        cd ..