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Elf

Docker for API Man hours

The link forward service used by https://go.edi.wang. It generates static URLs for redirecting third party URLs. It's similar to, but NOT a URL shorter.

  • Use a static token to adapt changes to origin url.
  • Track user click to generate report.

e.g.:

Raw URL:

https://www.somewebsite.com/a-very-long-and-complicated-link-that-can-also-change?with=parameters

will be translate to https://yourdomain/fw/token or https://yourdomain/aka/name

Features

Forward Link, Create/Manage/Share Link, View Report.

list

report

Forward Logic

image

Docker Deployment

https://hub.docker.com/r/ediwang/elf

You can also follow the next section to build and run the project yourself.

Build and Run API

Tools Alternative
.NET 8 SDK N/A
Visual Studio 2022 Visual Studio Code
Azure SQL Database SQL Server 2022 / LocalDB (Dev Only)

For a quick Azure deployment, you can use the automation script Azure-Deployment\Deploy.ps1 to setup a ready-to-run Elf in a couple of minutes. (Azure CLI is required to run the script)

Setup Database

Create an Azure SQL Database or a SQL Server 2019+ database. e.g. elf

Update the connection string "ElfDatabase" in appsettings.[env].json

"ConnectionStrings": {
  "ElfDatabase": "Server=(localdb)\\MSSQLLocalDB;Database=elf;Trusted_Connection=True;"
}

Build Source

Build and run ./src/API/Elf.sln

Authentication

Register an App in Microsoft Entra ID (Azure Active Directory)

  • Set an Application ID URI as unique for this app
  • Expose an API with name access_as_user and with Admins and users type
  • Change accessTokenAcceptedVersion to 2 in Manifest blade
  • Copy "appId" to set as EntraID:ClientId in appsettings.json file
"EntraID": {
  "Domain": "{YOUR-VALUE}",
  "TenantId": "{YOUR-VALUE}",
  "ClientId": "{YOUR-VALUE}",
}

Azure Cache for Redis (Optional)

To use Redis, follow these steps:

  1. Create an Azure Cache for Redis instance
  2. Copy the connection string in "Access keys"
  3. Set the connection string in ConnectionStrings:RedisConnection in appsettings.json or environment variable
  4. Restart the application

Build and Run Admin Portal

Pre-requests

  • Visual Studio / VSCode / .NET CLI or any editor you like

Configure Microsoft Entra ID

  1. Navigate to the Azure portal and select the Microsoft Entra ID service.
  2. Select New registration.
  3. In the Register an application page, enter your application's information:
    • In the Name section, for example elf-admin.
    • Under Supported account types, select Accounts in this organizational directory only.
    • In the Redirect URI (optional) section, select Single-page application and enter redirect URI: https://localhost:7160/authentication/login-callback for local debug and whatever URL you use in production.
  4. Select Register to create the application.
  5. In the app's registration screen, find and note the Application (client) ID.
  6. In the app's registration screen, click on the API permissions blade.
    • Click the Add a permission button and then,
    • Ensure that the My APIs tab is selected.
    • In the list of APIs, select the API you created.
    • In the Delegated permissions section, select the access_as_user in the list.
    • Click on the Add permissions.

Configure API endpoint

  1. Open ./src/Admin/Constants.cs, replace APIAddress, APIAppUrlGuid with your own values.
  2. Open ./src/Admin/wwwroot/appsettings.json, replace Authority, ClientId with your own values.

Run

cd ./src/Admin/
dotnet run

免责申明

对于中国访客，我们有一份特定的免责申明。请确保你已经阅读并理解其内容：