├── .gitattributes ├── .gitignore ├── README.md ├── gRPC.Dotnet.Learner.sln ├── gRPCClient.Console ├── Program.cs └── gRPCClient.Console.csproj ├── gRPCConsoleClient ├── Program.cs ├── Protos │ ├── greet.proto │ └── products.proto └── gRPCConsoleClient.csproj └── gRPCServer ├── Data └── ProductData.cs ├── Program.cs ├── Properties └── launchSettings.json ├── Protos ├── greet.proto └── products.proto ├── Services ├── GreeterService.cs └── ProductService.cs ├── Startup.cs ├── appsettings.Development.json ├── appsettings.json └── gRPCServer.csproj /.gitattributes: -------------------------------------------------------------------------------- 1 | ############################################################################### 2 | # Set default behavior to automatically normalize line endings. 3 | ############################################################################### 4 | * text=auto 5 | 6 | ############################################################################### 7 | # Set default behavior for command prompt diff. 8 | # 9 | # This is need for earlier builds of msysgit that does not have it on by 10 | # default for csharp files. 11 | # Note: This is only used by command line 12 | ############################################################################### 13 | #*.cs diff=csharp 14 | 15 | ############################################################################### 16 | # Set the merge driver for project and solution files 17 | # 18 | # Merging from the command prompt will add diff markers to the files if there 19 | # are conflicts (Merging from VS is not affected by the settings below, in VS 20 | # the diff markers are never inserted). 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Backup files are not needed, 240 | # because we have git ;-) 241 | _UpgradeReport_Files/ 242 | Backup*/ 243 | UpgradeLog*.XML 244 | UpgradeLog*.htm 245 | ServiceFabricBackup/ 246 | *.rptproj.bak 247 | 248 | # SQL Server files 249 | *.mdf 250 | *.ldf 251 | *.ndf 252 | 253 | # Business Intelligence projects 254 | *.rdl.data 255 | *.bim.layout 256 | *.bim_*.settings 257 | *.rptproj.rsuser 258 | *- Backup*.rdl 259 | 260 | # Microsoft Fakes 261 | FakesAssemblies/ 262 | 263 | # GhostDoc plugin setting file 264 | *.GhostDoc.xml 265 | 266 | # Node.js Tools for Visual Studio 267 | .ntvs_analysis.dat 268 | node_modules/ 269 | 270 | # Visual Studio 6 build log 271 | *.plg 272 | 273 | # Visual Studio 6 workspace options file 274 | *.opt 275 | 276 | # Visual Studio 6 auto-generated workspace file (contains which files were open etc.) 277 | *.vbw 278 | 279 | # Visual Studio LightSwitch build output 280 | **/*.HTMLClient/GeneratedArtifacts 281 | **/*.DesktopClient/GeneratedArtifacts 282 | **/*.DesktopClient/ModelManifest.xml 283 | **/*.Server/GeneratedArtifacts 284 | **/*.Server/ModelManifest.xml 285 | _Pvt_Extensions 286 | 287 | # Paket dependency manager 288 | .paket/paket.exe 289 | paket-files/ 290 | 291 | # FAKE - F# Make 292 | .fake/ 293 | 294 | # JetBrains Rider 295 | .idea/ 296 | *.sln.iml 297 | 298 | # CodeRush personal settings 299 | .cr/personal 300 | 301 | # Python Tools for Visual Studio (PTVS) 302 | __pycache__/ 303 | *.pyc 304 | 305 | # Cake - Uncomment if you are using it 306 | # tools/** 307 | # !tools/packages.config 308 | 309 | # Tabs Studio 310 | *.tss 311 | 312 | # Telerik's JustMock configuration file 313 | *.jmconfig 314 | 315 | # BizTalk build output 316 | *.btp.cs 317 | *.btm.cs 318 | *.odx.cs 319 | *.xsd.cs 320 | 321 | # OpenCover UI analysis results 322 | OpenCover/ 323 | 324 | # Azure Stream Analytics local run output 325 | ASALocalRun/ 326 | 327 | # MSBuild Binary and Structured Log 328 | *.binlog 329 | 330 | # NVidia Nsight GPU debugger configuration file 331 | *.nvuser 332 | 333 | # MFractors (Xamarin productivity tool) working folder 334 | .mfractor/ 335 | 336 | # Local History for Visual Studio 337 | .localhistory/ 338 | 339 | # BeatPulse healthcheck temp database 340 | healthchecksdb -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # gRPC in ASP.NET Core – Ultimate Guide for Getting Started 2 | Let's learn gRPC in ASP.NET Core and build Faster APIs! 3 | 4 | There is quite a lot of talk around gRPC off late. This article will introduce you to gRPC, what it actually is, how does it compare to REST Protocol, and really when to use it, some concepts on Protocol Buffers. Further, we will also go through a demonstration of working with gRPC in ASP.NET Core to get a complete picture of this trending technology coupled with ASP.NET Core. 5 | 6 | Here are the topics covered. 7 | 1. Introducing gRPC 8 | 2. REST vs gRPC 9 | 3. What are Protocol Buffers? 10 | 4. How gRPC Works? 11 | 5. Working with gRPC in ASP.NET Core 12 | 6. Getting used to the gRPC Project Structure 13 | 7. Building a gRPC Client 14 | 8. Let’s build our own gRPC Service 15 | 16 | Read the entire article here 17 | https://www.codewithmukesh.com/blog/grpc-in-aspnet-core-getting-started/ 18 | -------------------------------------------------------------------------------- /gRPC.Dotnet.Learner.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 16 4 | VisualStudioVersion = 16.0.30503.244 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "gRPCServer", "gRPCServer\gRPCServer.csproj", "{9F752D5E-C38A-434D-9AF6-BCD9FC96514E}" 7 | EndProject 8 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "gRPCConsoleClient", "gRPCConsoleClient\gRPCConsoleClient.csproj", "{1DD87FBD-B5FA-46E1-810B-07EE1289A6EA}" 9 | EndProject 10 | Global 11 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 12 | Debug|Any CPU = Debug|Any CPU 13 | Release|Any CPU = Release|Any CPU 14 | EndGlobalSection 15 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 16 | {9F752D5E-C38A-434D-9AF6-BCD9FC96514E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 17 | {9F752D5E-C38A-434D-9AF6-BCD9FC96514E}.Debug|Any CPU.Build.0 = Debug|Any CPU 18 | {9F752D5E-C38A-434D-9AF6-BCD9FC96514E}.Release|Any CPU.ActiveCfg = Release|Any CPU 19 | {9F752D5E-C38A-434D-9AF6-BCD9FC96514E}.Release|Any CPU.Build.0 = Release|Any CPU 20 | {1DD87FBD-B5FA-46E1-810B-07EE1289A6EA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 21 | {1DD87FBD-B5FA-46E1-810B-07EE1289A6EA}.Debug|Any CPU.Build.0 = Debug|Any CPU 22 | {1DD87FBD-B5FA-46E1-810B-07EE1289A6EA}.Release|Any CPU.ActiveCfg = Release|Any CPU 23 | {1DD87FBD-B5FA-46E1-810B-07EE1289A6EA}.Release|Any CPU.Build.0 = Release|Any CPU 24 | EndGlobalSection 25 | GlobalSection(SolutionProperties) = preSolution 26 | HideSolutionNode = FALSE 27 | EndGlobalSection 28 | GlobalSection(ExtensibilityGlobals) = postSolution 29 | SolutionGuid = {515D77D7-C11F-4188-998A-DDF98DD21B66} 30 | EndGlobalSection 31 | EndGlobal 32 | -------------------------------------------------------------------------------- /gRPCClient.Console/Program.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | 3 | namespace gRPCClient.Console 4 | { 5 | class Program 6 | { 7 | static void Main(string[] args) 8 | { 9 | Console.WriteLine("Hello World!"); 10 | } 11 | } 12 | } 13 | -------------------------------------------------------------------------------- /gRPCClient.Console/gRPCClient.Console.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | Exe 5 | netcoreapp3.1 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /gRPCConsoleClient/Program.cs: -------------------------------------------------------------------------------- 1 | using Grpc.Net.Client; 2 | using gRPCServer; 3 | using gRPCServer.Protos; 4 | using System; 5 | using System.Data; 6 | using System.Threading.Tasks; 7 | 8 | namespace gRPCConsoleClient 9 | { 10 | class Program 11 | { 12 | static async Task Main(string[] args) 13 | { 14 | var data = new GetProductByIdModel { ProductId = 2 }; 15 | var grpcChannel = GrpcChannel.ForAddress("https://localhost:5001"); 16 | var client = new Product.ProductClient(grpcChannel); 17 | var response = await client.GetProductByIdAsync(data); 18 | Console.WriteLine(response); 19 | Console.ReadLine(); 20 | using (var clientData = client.GetAllProducts(new GetAllProductsRequest())) 21 | { 22 | while (await clientData.ResponseStream.MoveNext(new System.Threading.CancellationToken())) 23 | { 24 | var thisProduct = clientData.ResponseStream.Current; 25 | Console.WriteLine(thisProduct); 26 | } 27 | } 28 | Console.ReadLine(); 29 | } 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /gRPCConsoleClient/Protos/greet.proto: -------------------------------------------------------------------------------- 1 | syntax = "proto3"; 2 | 3 | option csharp_namespace = "gRPCServer"; 4 | 5 | package greet; 6 | 7 | // The greeting service definition. 8 | service Greeter { 9 | // Sends a greeting 10 | rpc SayHello (HelloRequest) returns (HelloReply); 11 | } 12 | 13 | // The request message containing the user's name. 14 | message HelloRequest { 15 | string name = 1; 16 | } 17 | 18 | // The response message containing the greetings. 19 | message HelloReply { 20 | string message = 1; 21 | } 22 | -------------------------------------------------------------------------------- /gRPCConsoleClient/Protos/products.proto: -------------------------------------------------------------------------------- 1 | syntax = "proto3"; 2 | 3 | option csharp_namespace = "gRPCServer.Protos"; 4 | 5 | service Product{ 6 | 7 | rpc GetProductById (GetProductByIdModel) returns (ProductModel); 8 | rpc GetAllProducts (GetAllProductsRequest) returns (stream ProductModel); 9 | } 10 | 11 | message GetProductByIdModel{ 12 | int32 productId = 1; 13 | } 14 | 15 | message GetAllProductsRequest{ 16 | 17 | } 18 | 19 | message ProductModel{ 20 | int32 productId = 1; 21 | string name = 2; 22 | string description = 3; 23 | float price =4; 24 | } -------------------------------------------------------------------------------- /gRPCConsoleClient/gRPCConsoleClient.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | Exe 5 | netcoreapp3.1 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | all 18 | runtime; build; native; contentfiles; analyzers; buildtransitive 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | -------------------------------------------------------------------------------- /gRPCServer/Data/ProductData.cs: -------------------------------------------------------------------------------- 1 | using gRPCServer.Protos; 2 | using System; 3 | using System.Collections.Generic; 4 | using System.Linq; 5 | using System.Threading.Tasks; 6 | 7 | namespace gRPCServer.Data 8 | { 9 | public static class ProductData 10 | { 11 | public static List ProductModels = new List 12 | { 13 | new ProductModel 14 | { 15 | ProductId = 1, 16 | Name = "Pepsi", 17 | Description = "Soft Drink", 18 | Price = 10 19 | }, 20 | new ProductModel 21 | { 22 | ProductId = 2, 23 | Name = "Fanta", 24 | Description = "Soft Drink", 25 | Price = 13 26 | }, 27 | new ProductModel 28 | { 29 | ProductId = 3, 30 | Name = "Pizza", 31 | Description = "Fast Food", 32 | Price = 25 33 | }, 34 | new ProductModel 35 | { 36 | ProductId = 4, 37 | Name = "French Fries", 38 | Description = "Fast Food", 39 | Price = 20 40 | } 41 | }; 42 | } 43 | } 44 | -------------------------------------------------------------------------------- /gRPCServer/Program.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.IO; 4 | using System.Linq; 5 | using System.Threading.Tasks; 6 | using Microsoft.AspNetCore.Hosting; 7 | using Microsoft.Extensions.Hosting; 8 | 9 | namespace gRPCServer 10 | { 11 | public class Program 12 | { 13 | public static void Main(string[] args) 14 | { 15 | CreateHostBuilder(args).Build().Run(); 16 | } 17 | 18 | // Additional configuration is required to successfully run gRPC on macOS. 19 | // For instructions on how to configure Kestrel and gRPC clients on macOS, visit https://go.microsoft.com/fwlink/?linkid=2099682 20 | public static IHostBuilder CreateHostBuilder(string[] args) => 21 | Host.CreateDefaultBuilder(args) 22 | .ConfigureWebHostDefaults(webBuilder => 23 | { 24 | webBuilder.UseStartup(); 25 | }); 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /gRPCServer/Properties/launchSettings.json: -------------------------------------------------------------------------------- 1 | { 2 | "profiles": { 3 | "gRPCServer": { 4 | "commandName": "Project", 5 | "launchBrowser": false, 6 | "applicationUrl": "https://localhost:5001", 7 | "environmentVariables": { 8 | "ASPNETCORE_ENVIRONMENT": "Development" 9 | } 10 | } 11 | } 12 | } 13 | -------------------------------------------------------------------------------- /gRPCServer/Protos/greet.proto: -------------------------------------------------------------------------------- 1 | syntax = "proto3"; 2 | 3 | option csharp_namespace = "gRPCServer"; 4 | 5 | package greet; 6 | 7 | // The greeting service definition. 8 | service Greeter { 9 | // Sends a greeting 10 | rpc SayHello (HelloRequest) returns (HelloReply); 11 | } 12 | 13 | // The request message containing the user's name. 14 | message HelloRequest { 15 | string name = 1; 16 | } 17 | 18 | // The response message containing the greetings. 19 | message HelloReply { 20 | string message = 1; 21 | } 22 | -------------------------------------------------------------------------------- /gRPCServer/Protos/products.proto: -------------------------------------------------------------------------------- 1 | syntax = "proto3"; 2 | 3 | option csharp_namespace = "gRPCServer.Protos"; 4 | 5 | service Product{ 6 | 7 | rpc GetProductById (GetProductByIdModel) returns (ProductModel); 8 | rpc GetAllProducts (GetAllProductsRequest) returns (stream ProductModel); 9 | } 10 | 11 | message GetProductByIdModel{ 12 | int32 productId = 1; 13 | } 14 | 15 | message GetAllProductsRequest{ 16 | 17 | } 18 | 19 | message ProductModel{ 20 | int32 productId = 1; 21 | string name = 2; 22 | string description = 3; 23 | float price =4; 24 | } -------------------------------------------------------------------------------- /gRPCServer/Services/GreeterService.cs: -------------------------------------------------------------------------------- 1 | using Grpc.Core; 2 | using Microsoft.Extensions.Logging; 3 | using System.Threading.Tasks; 4 | 5 | namespace gRPCServer 6 | { 7 | public class GreeterService : Greeter.GreeterBase 8 | { 9 | private readonly ILogger _logger; 10 | public GreeterService(ILogger logger) 11 | { 12 | _logger = logger; 13 | } 14 | 15 | public override Task SayHello(HelloRequest request, ServerCallContext context) 16 | { 17 | return Task.FromResult(new HelloReply 18 | { 19 | Message = "Hello " + request.Name 20 | }); 21 | } 22 | } 23 | } 24 | -------------------------------------------------------------------------------- /gRPCServer/Services/ProductService.cs: -------------------------------------------------------------------------------- 1 | using Grpc.Core; 2 | using gRPCServer.Data; 3 | using gRPCServer.Protos; 4 | using Microsoft.Extensions.Logging; 5 | using System; 6 | using System.Collections.Generic; 7 | using System.Linq; 8 | using System.Threading.Tasks; 9 | 10 | namespace gRPCServer.Services 11 | { 12 | public class ProductService : Product.ProductBase 13 | { 14 | private readonly ILogger _logger; 15 | public ProductService(ILogger logger) 16 | { 17 | _logger = logger; 18 | } 19 | 20 | public override Task GetProductById(GetProductByIdModel request, ServerCallContext context) 21 | { 22 | var product = ProductData.ProductModels.Where(p => p.ProductId == request.ProductId).FirstOrDefault(); 23 | if (product != null) 24 | { 25 | return Task.FromResult(product); 26 | } 27 | else 28 | { 29 | return null; 30 | } 31 | } 32 | public override async Task GetAllProducts(GetAllProductsRequest request, IServerStreamWriter responseStream, ServerCallContext context) 33 | { 34 | var allProducts = ProductData.ProductModels.ToList(); 35 | foreach (var product in allProducts) 36 | { 37 | await responseStream.WriteAsync(product); 38 | } 39 | } 40 | } 41 | } 42 | -------------------------------------------------------------------------------- /gRPCServer/Startup.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.Threading.Tasks; 5 | using gRPCServer.Services; 6 | using Microsoft.AspNetCore.Builder; 7 | using Microsoft.AspNetCore.Hosting; 8 | using Microsoft.AspNetCore.Http; 9 | using Microsoft.Extensions.DependencyInjection; 10 | using Microsoft.Extensions.Hosting; 11 | 12 | namespace gRPCServer 13 | { 14 | public class Startup 15 | { 16 | // This method gets called by the runtime. Use this method to add services to the container. 17 | // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940 18 | public void ConfigureServices(IServiceCollection services) 19 | { 20 | services.AddGrpc(); 21 | } 22 | 23 | // This method gets called by the runtime. Use this method to configure the HTTP request pipeline. 24 | public void Configure(IApplicationBuilder app, IWebHostEnvironment env) 25 | { 26 | if (env.IsDevelopment()) 27 | { 28 | app.UseDeveloperExceptionPage(); 29 | } 30 | 31 | app.UseRouting(); 32 | 33 | app.UseEndpoints(endpoints => 34 | { 35 | endpoints.MapGrpcService(); 36 | endpoints.MapGrpcService(); 37 | endpoints.MapGet("/", async context => 38 | { 39 | await context.Response.WriteAsync("Communication with gRPC endpoints must be made through a gRPC client. To learn how to create a client, visit: https://go.microsoft.com/fwlink/?linkid=2086909"); 40 | }); 41 | }); 42 | } 43 | } 44 | } 45 | -------------------------------------------------------------------------------- /gRPCServer/appsettings.Development.json: -------------------------------------------------------------------------------- 1 | { 2 | "Logging": { 3 | "LogLevel": { 4 | "Default": "Debug", 5 | "System": "Information", 6 | "Grpc": "Information", 7 | "Microsoft": "Information" 8 | } 9 | } 10 | } 11 | -------------------------------------------------------------------------------- /gRPCServer/appsettings.json: -------------------------------------------------------------------------------- 1 | { 2 | "Logging": { 3 | "LogLevel": { 4 | "Default": "Information", 5 | "Microsoft": "Warning", 6 | "Microsoft.Hosting.Lifetime": "Information" 7 | } 8 | }, 9 | "AllowedHosts": "*", 10 | "Kestrel": { 11 | "EndpointDefaults": { 12 | "Protocols": "Http2" 13 | } 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /gRPCServer/gRPCServer.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | netcoreapp3.1 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | --------------------------------------------------------------------------------