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A sample aspnet project template with these features:

  • core 2.1 for server-side code
  • vue.js for client-side code (created with cli v3)
  • both live in one project and debugging is done on the aspnet project
  • working HMR in vue app when debugging the aspnet site

Below are the steps used to create this.

Aspnet Core Project

Create a new dotnet core project with aspnet core template.

Then In Startup.cs, add services.AddSpaStaticFiles() in ConfigureServices() method, and app.UseSpaStaticFiles() and app.UseSpa() in Configure() method.

public void ConfigureServices(IServiceCollection services)

  // new addition here
  services.AddSpaStaticFiles(spa =>
    spa.RootPath = @"ClientApp\dist";

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
  // ... other aspnet configuration skipped here

  app.UseSpaStaticFiles(); // new addition

  // new addition
  app.UseSpa(spa =>
    if (env.IsDevelopment())
      // change this to whatever webpack dev server says it's running on

Vue Project

Create a client-side project using vue cli 3 into a folder called ClientApp in the aspnet project folder.

Csproj File

Some edits to the .csproj file are also needed for proper release/publish using dotnet.

The PropertyGroup defines a new variable SpaRoot for use later.

The ItemGroup makes vue's project folder visible in VS but not include in build.

DebugEnsureNodeEnv target installs npm packages if necessary on project builds.

PublishRunWebpack target builds the vue app and include the dist folder in the published files.

<Project Sdk="Microsoft.NET.Sdk.Web">

  <!-- ...default stuff skipped here... -->


    <Content Remove="$(SpaRoot)**" />
    <None Include="$(SpaRoot)**" Exclude="$(SpaRoot)dist\**" />
  <Target Name="DebugEnsureNodeEnv" BeforeTargets="Build" Condition=" '$(Configuration)' == 'Debug' And !Exists('$(SpaRoot)node_modules') ">
    <!-- Ensure Node.js is installed -->
    <Exec Command="node --version" ContinueOnError="true">
      <Output TaskParameter="ExitCode" PropertyName="ErrorCode" />
    <Error Condition="'$(ErrorCode)' != '0'" Text="Node.js is required to build and run this project. To continue, please install Node.js from, and then restart your command prompt or IDE." />
    <Message Importance="high" Text="Restoring dependencies using 'npm'. This may take several minutes..." />
    <Exec WorkingDirectory="$(SpaRoot)" Command="npm install" />

  <Target Name="PublishRunWebpack" AfterTargets="ComputeFilesToPublish">
    <!-- As part of publishing, ensure the JS resources are freshly built in production mode -->
    <Exec WorkingDirectory="$(SpaRoot)" Command="npm install" />
    <Exec WorkingDirectory="$(SpaRoot)" Command="npm run build" />

    <!-- Include the newly-built files in the publish output -->
      <DistFiles Include="$(SpaRoot)dist\**" />
      <ResolvedFileToPublish Include="@(DistFiles->'%(FullPath)')" Exclude="@(ResolvedFileToPublish)">

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