METARPC / DEVELOPER GUIDES

Trade copying.
Built with Go.

From your first authenticated request to a monitored master–follower workflow. Clear examples, explicit sizing and practical recovery.

Start building → Explore the API

TLS transport · Owner authentication · Demo-first validation

• 01 · Connect with confidence

  Understand keys, account IDs and transport before sending a request.

  Authentication →

• 02 · Control the lifecycle

  Start once, inspect state, pause and clean up your test.

  Copier lifecycle →

• 03 · Make sizing explicit

  Choose lot, balance or equity sizing and account for broker constraints.

  Sizing and settings →

• 04 · Diagnose the result

  Separate network success from management success and broker execution.

  Troubleshooting →

Your first successful request

Requires Go 1.21+. Install dependencies and run the read-only List example. Keep your key in MRPC_API_KEY.

package main
import (
    "context"
    "fmt"
    "log"
    "os"
    "github.com/MetaRPC/GoCopier/copier"
)
func main() {
    service, err := copier.NewCopierService("copy.mrpc.pro:443", os.Getenv("MRPC_API_KEY"))
    if err != nil { log.Fatal(err) }
    defer service.Close()
    result, err := service.List(context.Background())
    if err != nil { log.Fatal(err) }
    if !result.Ok { log.Fatal(result.Error) }
    for _, item := range result.Copiers { fmt.Println(item.Id, item.Paused) }
}

Full setup · Testing guide · All SDKs

Watch a real demo failure and recovery

Copier troubleshooting video follows an oversized follower request from its broker rejection through a corrected demo opening and closing. It demonstrates the control-panel workflow; the lifecycle recipes, sizing guide and error guide explain how to apply the checks in this SDK.

Use disposable demo accounts first. Hosted service usage is paid; consult current pricing. A successful management response does not prove that a broker executed the copied trade.