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feat(sdk): add gateway utility helpers for CLI and bot consumers#1012

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nud3l merged 2 commits intomasterfrom
feat/sdk-gateway-utils
Mar 30, 2026
Merged

feat(sdk): add gateway utility helpers for CLI and bot consumers#1012
nud3l merged 2 commits intomasterfrom
feat/sdk-gateway-utils

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@nud3l nud3l commented Mar 26, 2026

Summary

  • Add getInnerQuote() to unwrap discriminated GatewayQuote union using generated type guards
  • Add InnerQuote type (union of onramp/offramp/layerZero quotes)
  • Add ScureBitcoinSigner re-export from utils/ for direct PSBT signing
  • Add MempoolClient.getAddressMempoolTxs for mempool tx monitoring
  • Export getBalance and estimateTxFee from wallet utilities

These helpers support the upcoming gateway-cli tool (PR #1005) and other bot consumers that need lower-level access to quote discrimination and Bitcoin signing.

Test plan

  • pnpm exec tsc --noEmit passes
  • pnpm test passes (49 passed, 11 skipped)
  • No breaking changes — all additions are new exports

🤖 Generated with Claude Code

- Add getInnerQuote() to unwrap discriminated GatewayQuote union
- Add InnerQuote type (union of onramp/offramp/layerZero quotes)
- Add ScureBitcoinSigner re-export from utils for direct PSBT signing
- Add MempoolClient.getAddressMempoolTxs for mempool tx monitoring
- Export getBalance and estimateTxFee from wallet utilities

These helpers support the upcoming gateway-cli tool and other bot consumers
that need lower-level access to quote discrimination and Bitcoin signing.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces a set of new utility helpers primarily aimed at supporting CLI tools and bot consumers. The changes enhance the SDK's capabilities by providing more flexible Bitcoin private key handling, simplifying the discrimination of various gateway quote types, and enabling direct monitoring of unconfirmed Bitcoin transactions in the mempool. These additions streamline common operations for developers interacting with the gateway and Bitcoin network.

Highlights

  • Gateway Quote Utilities: Added getInnerQuote() to safely unwrap discriminated GatewayQuote unions and introduced the InnerQuote type, which is a union of onramp, offramp, and LayerZero quotes.
  • Enhanced Bitcoin Signer: The ScureBitcoinSigner now includes static factory methods fromWIF and fromKey to create signers from WIF-encoded or hex private keys, with automatic format detection.
  • Mempool Transaction Monitoring: Implemented MempoolClient.getAddressMempoolTxs to allow fetching pending (unconfirmed) transactions for a specific Bitcoin address.
  • Expanded Wallet Utilities: Exported getBtcAddressInfo and BtcAddressType from the bitcoin-address-validation library, providing more detailed Bitcoin address information.

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Code Review

This pull request introduces several new utilities and features to the SDK. It adds static methods to ScureBitcoinSigner for creating signers from WIF or auto-detected private key formats, and exports these along with a new BitcoinSigner type. A new getInnerQuote function is added to unwrap GatewayQuote objects, with a suggestion to improve its type safety by removing unnecessary type casts. Additionally, a getAddressMempoolTxs method is added to MempoolClient to fetch pending transactions for a Bitcoin address, and getAddressInfo and AddressType are now exported from bitcoin-address-validation for enhanced address validation capabilities.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@nud3l nud3l merged commit 5eb02a4 into master Mar 30, 2026
7 checks passed
@nud3l nud3l deleted the feat/sdk-gateway-utils branch March 30, 2026 12:43
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