mvx_sdk_go_interactors_skill

Overview

This skill provides Go components for interacting with the MultiversX blockchain: wallet utilities, transaction interactors, and nonce handlers. It bundles secure key loading and generation, a robust nonce handler (V3) for concurrent scenarios, and a high-level transaction interactor to sign and send transactions. The focus is on simplifying common blockchain tasks while encouraging safe key and nonce management.

How this skill works

The wallet component loads private keys from PEM or keystore files, generates keypairs, and derives addresses in Bech32 format. The nonce handler (V3) fetches the current on-chain nonce for an address, maintains an internal counter, and can apply and increment nonces to transactions to avoid collisions. The transaction interactor wraps signing and network submission, supporting single or batch sends and returning transaction hashes.

When to use it

• When you need to load or generate wallet keys and derive Bech32 addresses in Go.
• When sending signed transactions and you want a simple sign-and-send API.
• When running concurrent transaction submissions from the same address and you need reliable nonce handling.
• When batching multiple transactions and needing consistent signing plus submission.
• When you want to replace manual RPC nonce fetch + increment logic with a tested handler.

Best practices

• Use the NonceHandlerV3 for production or concurrent flows to avoid nonce reuse and failed transactions.
• Use TransactionInteractor to centralize signing and network submission logic to reduce errors.
• Never hardcode private keys; load them from encrypted keystore files or secure stores.
• Fetch the initial nonce via the handler and rely on ApplyNonceAndGasPrice to increment safely.
• Handle and log transaction hashes for reconciliation and retry logic when needed.

Example use cases

• A high-throughput payment service that submits many transactions concurrently from the same address.
• A CLI tool that loads a keystore, builds a transaction, signs it, and broadcasts it to a proxy.
• A batch token transfer job that constructs multiple transactions, signs them, and collects hashes.
• A backend service that generates ephemeral keypairs for short-lived operations and derives addresses.