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Examples: added a very simple .NET Core Web API example
1 parent 7f8d1e9 commit 237a59b

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Lines changed: 177 additions & 1 deletion

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‎Numpy.NET.sln‎

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@@ -17,7 +17,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Numpy.Bare.UnitTest", "test
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ReleaseBot", "src\ReleaseBot\ReleaseBot.csproj", "{2BAEA60C-88A2-45DC-8044-2C9571E1B8CF}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NeuralNetworkExample", "NeuralNetworkExample\NeuralNetworkExample.csproj", "{66A030C3-69B8-4A84-9F4B-308D66CF4FD3}"
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NeuralNetworkExample", "NeuralNetworkExample\NeuralNetworkExample.csproj", "{66A030C3-69B8-4A84-9F4B-308D66CF4FD3}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WebApiExample", "WebApiExample\WebApiExample.csproj", "{7C23FCEB-BFC1-4720-87E1-004FA59A0FBC}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -53,13 +55,18 @@ Global
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{66A030C3-69B8-4A84-9F4B-308D66CF4FD3}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{66A030C3-69B8-4A84-9F4B-308D66CF4FD3}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{66A030C3-69B8-4A84-9F4B-308D66CF4FD3}.Release|Any CPU.Build.0 = Release|Any CPU
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{7C23FCEB-BFC1-4720-87E1-004FA59A0FBC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{7C23FCEB-BFC1-4720-87E1-004FA59A0FBC}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{7C23FCEB-BFC1-4720-87E1-004FA59A0FBC}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{7C23FCEB-BFC1-4720-87E1-004FA59A0FBC}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(NestedProjects) = preSolution
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{A92C1287-BF2B-4FDC-8BBA-A17F410CD41F} = {25D84E98-E107-45C9-A0EC-0B25E24DA607}
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{66A030C3-69B8-4A84-9F4B-308D66CF4FD3} = {25D84E98-E107-45C9-A0EC-0B25E24DA607}
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{7C23FCEB-BFC1-4720-87E1-004FA59A0FBC} = {25D84E98-E107-45C9-A0EC-0B25E24DA607}
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {5EB08541-5168-443C-B524-A5CB7E7C613D}

‎WebApiExample/Controllers/ValuesController.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Mvc;
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using Numpy;
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using Python.Runtime;
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namespace WebApiExample.Controllers
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{
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[Route("api/[controller]")]
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[ApiController]
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public class ValuesController : ControllerBase
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{
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// GET api/values
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[HttpGet]
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public ActionResult<string> Get()
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{
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using (Py.GIL()) {
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var array = new float[2, 2] {{DateTime.Now.Minute, DateTime.Now.Second}, {DateTime.Now.Millisecond, (float)Math.PI}};
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var ndArray = new NDarray(array);
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//return ndArray.ToString();
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return ndArray.repr;
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}
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}
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// GET api/values/5
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[HttpGet("{id}")]
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public ActionResult<string> Get(int id)
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{
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using (Py.GIL())
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{
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var array = new float[2, 2] { { DateTime.Now.Minute, DateTime.Now.Second }, { DateTime.Now.Millisecond, (float)Math.PI } };
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var ndArray = new NDarray(array);
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//return ndArray.ToString();
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return ndArray.repr;
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}
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}
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//// POST api/values
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//[HttpPost]
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//public void Post([FromBody] string value)
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//{
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//}
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//// PUT api/values/5
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//[HttpPut("{id}")]
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//public void Put(int id, [FromBody] string value)
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//{
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//}
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//// DELETE api/values/5
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//[HttpDelete("{id}")]
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//public void Delete(int id)
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//{
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//}
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}
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}

‎WebApiExample/Program.cs‎

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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Logging;
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using Numpy;
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namespace WebApiExample
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{
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public class Program
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{
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public static void Main(string[] args)
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{
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// this call initializes numpy. it is necessary to do that before PythonEngine.BeginAllowThreads()
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np.arange(1);
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Python.Runtime.PythonEngine.BeginAllowThreads(); // <--- this is very important for a web server since all requests are on different threads
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CreateWebHostBuilder(args).Build().Run();
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}
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public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
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WebHost.CreateDefaultBuilder(args)
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.UseStartup<Startup>();
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}
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}

‎WebApiExample/Startup.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Options;
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namespace WebApiExample
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{
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public class Startup
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{
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public Startup(IConfiguration configuration)
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{
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Configuration = configuration;
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}
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public IConfiguration Configuration { get; }
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// This method gets called by the runtime. Use this method to add services to the container.
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public void ConfigureServices(IServiceCollection services)
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{
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services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
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}
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// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
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public void Configure(IApplicationBuilder app, IHostingEnvironment env)
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{
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if (env.IsDevelopment())
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{
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app.UseDeveloperExceptionPage();
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}
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app.UseMvc();
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}
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}
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}

‎WebApiExample/WebApiExample.csproj‎

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<Project Sdk="Microsoft.NET.Sdk.Web">
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<PropertyGroup>
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<TargetFramework>netcoreapp2.2</TargetFramework>
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<AspNetCoreHostingModel>InProcess</AspNetCoreHostingModel>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
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<PlatformTarget>x64</PlatformTarget>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.AspNetCore.App" />
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<PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.2.0" PrivateAssets="All" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\src\Numpy.Bare\Numpy.Bare.csproj" />
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</ItemGroup>
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</Project>

‎WebApiExample/appsettings.Development.json‎

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{
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"Logging": {
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"LogLevel": {
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"Default": "Debug",
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"System": "Information",
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"Microsoft": "Information"
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}
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}
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}

‎WebApiExample/appsettings.json‎

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{
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"Logging": {
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"LogLevel": {
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"Default": "Warning"
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}
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},
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"AllowedHosts": "*"
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}

‎src/Numpy.Bare/Numpy.Bare.csproj‎

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<AssemblyVersion>3.7.1.4</AssemblyVersion>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
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<PlatformTarget>x64</PlatformTarget>
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</PropertyGroup>
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<ItemGroup>
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<Compile Remove="Resources\**"></Compile>
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<EmbeddedResource Remove="Resources\**"></EmbeddedResource>

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