A blazingly fast gRPC client & server implementation in Zig, designed for maximum performance and minimal overhead.

• 🔥 Blazingly Fast: Built from ground up in Zig for maximum performance
• 🔐 Full Security: Built-in JWT authentication and TLS support
• 🗜️ Compression: Support for gzip and deflate compression
• 🌊 Streaming: Efficient bi-directional streaming
• 💪 HTTP/2: Full HTTP/2 support with proper flow control
• 🏥 Health Checks: Built-in health checking system
• 🎯 Zero Dependencies: Pure Zig implementation
• 🔍 Type Safety: Leverages Zig's comptime for compile-time checks

// Server
const server = try GrpcServer.init(allocator, 50051, "secret-key");
try server.handlers.append(.{
    .name = "SayHello",
    .handler_fn = sayHello,
});
try server.start();

// Client
var client = try GrpcClient.init(allocator, "localhost", 50051);
const response = try client.call("SayHello", "World", .none);

const std = @import("std");
const GrpcServer = @import("server.zig").GrpcServer;

pub fn main() !void {
    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
    defer _ = gpa.deinit();

    var server = try GrpcServer.init(gpa.allocator(), 50051, "secret-key");
    defer server.deinit();

    try server.start();
}

var stream = streaming.MessageStream.init(allocator, 5);
try stream.push("First message", false);
try stream.push("Final message", true);

1. Add to your build.zig.zon:

.dependencies = .{
    .grpc_zig = .{
        .url = "https://github.com/derickit/grpc-zig/archive/refs/tags/v0.1.0.tar.gz",
    },
},

2. Add to your build.zig:

const grpc_zig = b.dependency("grpc_zig", .{});
exe.addModule("grpc", grpc_zig.module("grpc"));

Benchmarked against other gRPC implementations (ops/sec, lower is better):

gRPC-zig    │████████░░░░░░░░░░│  2.1ms
gRPC Go     │██████████████░░░░│  3.8ms
gRPC C++    │████████████████░░│  4.2ms

Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.

This project is licensed under the Unlicense - see the LICENSE file for details.

If you find this project useful, please consider giving it a star on GitHub to show your support!

• Spice - For the amazing Protocol Buffers implementation
• Tonic - For inspiration on API design
• The Zig community for their invaluable feedback and support

Made with ❤️ in Zig