jsonrpc2 is an implementation of jsonrpc2 protocol from a golang struct.
go get github.com/altlimit/jsonrpc2Refer to cmd/example for a running example.
You are allowed to have any or no parameters. Context is optional and doesn't count in your jsonrpc request. Returning 2 values with error as last return type will automatically respond proper error response. Returning more than 2 values with or without errors returns an array of result.
type Calculator struct {
}
func (c *Calculator) Subtract(ctx context.Context, a float64, b float64) float64 {
return a - b
}
func (c *Calculator) Divide(a float64, b float64) (float64, error) {
if b == 0 {
return 0, errors.New("divide by zero")
}
return a / b, nil
}
func main() {
http.Handle("/rpc", jsonrpc2.NewServer(&Calculator{}))
port := "8090"
log.Println("Listening", port)
http.ListenAndServe(":"+port, nil)
}MIT