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MemCheck build, test and deploy to Azure

MemCheck

This repo holds the MemCheck project, source for the Mnesios web site. Mnesios is a flashcard web site, a tool to help you know things by heart. The end user doc (in French only) is made of GitHub pages generated from the memcheck-user-doc repo.

Development

MemCheck is developed with a push-to-deploy strategy (aka continuous delivery), thanks to the extensive set of tests.

Technologies

Prerequesites on Windows

  • Your dev environment, probably one of:
    • Visual Studio Code. Needed extension: C#.
    • Visual Studio, my recommendation (the free Community edition is ok). Needed workload: ASP.NET and web development (with at least the default components). I currently use Microsoft Visual Studio Community 2022, version 17.3.3.
  • A database server. I recommend SQL Server Express for simplicity (the basic setup is ok). After installation, run SqlLocalDB.msi (it should be in C:\SQL2019\ExpressAdv_ENU\1033_ENU_LP\x64\Setup\x64). Already included if you installed Visual Studio.
  • .NET 5 SDK (you probably want to use the x64 installer). Already included if you installed Visual Studio.
  • Entity Framework .NET CLI: install by running this command: dotnet tool install --global dotnet-ef.
  • To run the web site, you will need to trust the local issued certificate. For that, run this command: dotnet dev-certs https --trust. Again, Visual Studio will deal with that on the first launch of the web site project. This is the command to use as a fix if you get the error message Failed to authenticate HTTPS connection at debug time.

Tests

  • To restore Node packages, run npm install.
  • To run the tests (which include eslint and jest), run npm run test.

On Linux or Mac

I plan to check that but did not have time yet: development on a Mac or Linux machine should work. Feedback welcome.

Tried and true first run with your local DB when your environment is ready

  • Begin with compiling the solution. On a blank machine (I ran some tests on a VM), the first compilation takes several minutes (say, 5) because of the very heavy NuGet package restorations. I have seen it failing, and working on the next attempt.
  • You should be able to create a local database by runnning this command line in the folder of the MemCheck.Database project: dotnet ef --startup-project ../MemCheck.WebUI database update. This creates a database with the connexion string read in the file of the project MemCheck.WebUI, which should be ok for development (but has no security).
  • You need an account, which you create as usually in the web site (project MemCheck.WebUI) running on your debugger (follow the Register link on the home page). You won't receive the confirmation email since you don't have any account set for mail sending (see SendGrid in appsettings.json).
  • You need two changes about your account: you need it to be admin of your local MemCheck, and email-confirmed. This can be done in various ways. Here is how to do that using the project MemCheck.CommandLineDbClient:
    1. Open the file MemCheck.CommandLineDbClient\Engine.cs, and check in the method GetPlugin that the plugin used is MakeUserAdmin.
    2. In the file MemCheck.CommandLineDbClient\ManageDB\MakeUserAdmin.cs, modify the field userName to set it to the user name you created.
    3. Compile and run the MemCheck.CommandLineDbClient project. Note that it ends on an exception, because the current implementation of this project is a bit askew. Its execution is a success if it logs Test done.
    4. After that, the MemCheck web site must run correctly from your debugger, and you should be able to log in.
  • Now, running the web site project, you should be able to log in. You then need to...
    • Create a language for cards. Since your account is admin, you have an Admin link at the bottom of the screen. This is where you can create a language (eg Français).
    • Create the tag named Perso.
  • You're now all set, with a fully functional local deployment of MemCheck!

Projects

  • MemCheck.Basics contains very rudimentary services, often in order to save writing boilerplate code.
  • MemCheck.Domain contains the fundamental data structures which depict the register of MemCheck. Only data as persisted in the database, no behavior.
  • MemCheck.Database contains the MemCheckDbContext class, which is the entry point for the database. It also includes the migrations.
  • MemCheck.Application defines the algorithms, the way we interact with the database. It returns raw data, describing what to display, not how to display it.
  • MemCheck.WebUI is the ASP.NET Core project which defines the web site. It contains as little algorithm as possible, and focuses on the UI. It is the job of the controllers to adapt for display the data delivered by MemCheck.Application.
  • MemCheck.AzureFunctions is an Azure functions project to run notification scheduled tasks in a serverless environment.
  • MemCheck.CommandLineDbClient is a tool to manage the database from the command line.

Third parties