Run Scaffold-dbcontext On Visual Studio For Mac
Download Download the source code. Introduction Unlike Windows app development, building apps in Mac environment is bit different because we will be dealing with the new commands, tools, and the file structure. To put it in other words, Most.net developers are not that familiar with the MAC environment and it's a real P.I.T.A. This article aims to guide developers who aren't familiar with MAC OS X and want to jump on.NET Core, or for folks who want to try out.NET Core on MAC environment. While there are a bunch of resources on the web that demonstrates how to build and run.NET Core apps in docker, it seems to me that there are only limited resources on doing it on MAC. This article will walk you through on building your first app with Web API, EF, PostgreSQL and running it on Docker. Getting Started Before we get our hands dirty, let's go ahead and install the required tools needed for us to build and run the application.
If you already have installed the prerequisites mentioned below, then you may skip it and proceed. Prerequisites.NET Core.NET Core gives us the dotnet command line tools for us to build and run.net core apps without any IDE.
Download and follow the installation steps for.NET Core in MAC. Visual Studio Code Visual Studio Code is a lightweight, yet powerful code editor which runs on MAC, Linux and Windows. We'll be using VSCode to write our C# code and HTML markup. Download and install Visual Studio Code.
NodeJS and NPM We'll be needing NodeJS because we are going to use to scaffold ASP.NET Core Web App template and we will be using NPM to install packages. Install NodeJs and NPM, you can get the latest installer. Creating the.NET Core Application Open the terminal and let's start by installing. Run the following command. $ yo aspnet Now, we might be asked to report usage statistics to improve the tool, just key in Y/N to answer that.
In my case, I've chosen Y (yes). After that, it should provide we with the following result: The generator displays a list of items for us to select the project type. For this demo, we are going to select the Empty Web Application project template. Tap enter and then type in the project name. For this case, we are going to name the project as 'dotnetcorehello'. Tap enter to generate the project with the default files as shown in the figure below: As we can see, the generator creates an ASP.NET Core project. This newly created project can be loaded into Visual Studio Code or use the command line to run the application.
Restore, Build and Run the Application To ensure that we are on the right track, we will test the app by running the project. Now change the directory of the command line to point to our newly created project. In this case, do. $ dotnet run Now open your browser and then try to browse the following URL: When everything is good, then we should be able to see the following output.
We just had our first.NET Core application running on MAC. It's time for us to move further and create a simple Web API that exposes some methods and explore Docker on MAC. Installing and Running the Application on Docker Go ahead and install Docker for MAC.
Run Scaffold-dbcontext On Visual Studio For Mac Mac
Now, let's try to run our.NET Core application within docker. The first thing to do is open Visual Studio Code and then install the C# Extension. After that, open the project that we have just created earlier. We will notice that the project already contains the 'Dockerfile' just like in the figure below. The Dockerfile contains the instruction to build the docker image. For more information, see: Open startup.cs and under Configure method, let's modify the output to something like this.
$ docker ps Let's run off to the browser and append port 5000 to our local IP. The output should result to something like this. We now have a.NET Core running on Docker. Our next step is to integrate EF Core, PostgreSQL and create a basic Web API methods that will serve some data. Integrating EF Core and PostgreSQL Entity Framework Core now supports a variety of.
In this particular demo, we will take a look at how to integrate PostgreSQL in our.NET Core application. The easiest way to install Postgres is using which should be included upon installing the.NET Core SDK. Now run the following command to download and install PostreSQL. $ docker run -d -name pg-db -e POSTGRESPASSWORD=supersecret postgres The -d option runs a container in the background and prints the container ID. The -name assigns a name to the container, in this case, we named our container as 'pg-db'. The -e allow us to set the environment variables, which in this case, we've set a password to 'supersecret' for our Postgres image using the POSTGRESPASSWORD variable.
Running the command above will expose the postgres port 5432 which allows a standard container to be available to the linked containers. The initdb will also be generated with default user and database. Again, to verify that our PostgresSQL Docker container is up and running do. The Band class serves as our model that houses some properties. This model is just a simple POCO object.
The BandDbContext typically used to customize the model and to expose DbSet's which are used to query the database. Configuring the ConnectionString Now that we have our model and DB context ready, the next thing that we are going to do is to setup the connection string for us to be able to run a migration against our database. Add the following configuration within our appsettings.json file. EF Core does not do the migration automatically, that's why we need the pieces of configuration above for us to use Code-First migrations. The Database.Migrate method piece is responsible for two things: (1) The creation of a database in PostgreSQL if it does not exist yet.
(2) Migrating the database schemas to the latest version. Generate Migrations As we may have already guessed, we will be using EF Core tools to scaffold our migration and of course updating the database. We'll be using the command line (dotnet CLI) to run our migrations. Though the migration process will build our app first, we can also build the app ahead just to ensure that our application doesn't have errors by running the following command. $ docker run -d -p 5000:5000 -link pg-db:postgres dockerdotnetcore Testing the Application Here are some of the screenshots for the test that I've made, using. POST: http::5000/api/band GET: http::5000/api/band GET: http::5000/api/band/ That's it!
Run Scaffold Dbcontext On Visual Studio For Mac
Summary In this article, we've learned the basics on setting up.NET Core on MAC environment and learned how to create a simple ASP.NET Core application with Web API, EF, PostgreSQL and running it on Docker. See Also.
This post will guide you how to generate Models using Database/Model First Approach and Scaffold MySql Database in Asp.Net Core using Mac. History.Net Core is a lightweight and cross-platform version of the DotNet framework and the awesome thing is Developers required the same expertise to work with Asp.Net Core as.Net Framework. Net Core Launch, Mac, and Linux users can also develop using Microsoft Technologies. Most of the users use SQL Server as a Database of their Application when working with.Net Technologies.
But difficulties occur while developing with MacOS or Linux, Although SQL Server can be used using Docker which is very popular these days, Docker required some expertise that’s why most of the developers love to use other Databases. When.Net Core was released the framework supported only the following databases:. SQL Server.
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Postgres. SQLite. SQL Server Compact But with a redesigned completely, EntityFramework Core became lighter than the old version. Now in its 2nd version, EntityFramework Core supports more databases and in this article, I will show you how to use it with a MySQL database.