在ASP.Net中,可以使用gRPC-Web来实现类似于grpc-gateway的功能,以便在HTTP/1.1上发送proto消息。以下是一个使用gRPC-Web和ASP.Net的代码示例:
syntax = "proto3";
package Sample;
service GreetService {
rpc SayHello (HelloRequest) returns (HelloResponse);
}
message HelloRequest {
string name = 1;
}
message HelloResponse {
string message = 1;
}
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
public class Startup
{
public void ConfigureServices(IServiceCollection services)
{
services.AddGrpc();
}
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
app.UseRouting();
app.UseGrpcWeb(); // 添加gRPC-Web中间件
app.UseEndpoints(endpoints =>
{
endpoints.MapGrpcService().EnableGrpcWeb(); // 启用gRPC-Web支持
});
}
}
using System.Threading.Tasks;
using Grpc.Core;
using Sample;
public class GreetService : GreetServiceBase
{
public override Task SayHello(HelloRequest request, ServerCallContext context)
{
return Task.FromResult(new HelloResponse
{
Message = "Hello, " + request.Name
});
}
}
import { GreeterClient } from 'your_grpc_service_pb.js';
import { HelloRequest } from 'your_grpc_service_pb.js';
import { grpc } from 'grpc-web-client';
const client = new GreeterClient('http://localhost:5000');
const request = new HelloRequest();
request.setName('John');
const metadata = { 'content-type': 'application/grpc-web+proto' };
grpc.invoke(Greeter.SayHello, {
request: request,
host: 'http://localhost:5000',
metadata: metadata,
onMessage: function (response) {
console.log('Received message:', response.getMessage());
},
onEnd: function (status, statusMessage, trailers) {
console.log('Request completed with status:', status, statusMessage);
}
});
通过以上步骤,你就可以在ASP.Net中使用gRPC-Web发送proto消息,并在HTTP/1.1上进行通信。