rpc-gen

A simple Golang tool that generates RPC client code from Go interfaces in the current directory. It parses .go files, extracts interface definitions, and creates corresponding client code using Go's net/rpc package with gob encoding.

Installation

Clone the repository and build the tool:

git clone https://github.com/samix73/rpc-gen.git
cd rpc-gen
go build -o rpc-gen main.go

Alternatively, install directly using Go:

go install github.com/samix73/rpc-gen@latest

Usage

Run the tool in a directory containing your Go source files with interface definitions. It will generate client code for each interface found.

Command Line Options

• -input <file> (required): Specify the input Go file or package directory containing the interfaces.
• -verbose: Enable verbose logging.

Example

1. Create a Go file with an interface, e.g., service.go:

package api

type MyService interface {
    DoSomething(request *Request, response *Response) error
}

type Args struct {
	A, B int
}

type Reply struct {
	C int
}

2. Run the generator:

rpc-gen

This generates service_client_gen.go with the client code.

3. Use the generated client in your code:

client, err := NewMyServiceClient("localhost:1234")
if err != nil {
    log.Fatal(err)
}
defer client.Close()

req := &Request{Data: "hello"}
result := &Response{}
err := client.DoSomething(req, result)

// Handle error

fmt.Println(result.Result)

Generated Code Features

• Registers request and response types with gob.
• Creates a client struct with methods matching the interface.
• Handles RPC calls over TCP with error wrapping.
• Includes a Close() method to close the connection.