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Feat/issue 198 horizon fallback#247

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Stellar-split:mainfrom
Atisan12:feat/issue-198-horizon-fallback
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Feat/issue 198 horizon fallback#247
Atisan12 wants to merge 2 commits into
Stellar-split:mainfrom
Atisan12:feat/issue-198-horizon-fallback

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closes #198

Atisan12 and others added 2 commits June 25, 2026 17:37
…lar-split#195)

Introduces Sep41Adapter, a thin normalisation layer over Soroban token
contracts that may or may not implement the full SEP-41 spec.  Lazy
capability probing (same FunctionNotFound pattern as featureDetection)
gates allowance/approve calls and returns null with a console.warn for
unsupported methods.  Exports wired into src/index.ts.  Unit tests cover
full SEP-41, transfer-only, and missing-method token shapes.

Closes Stellar-split#195

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Stellar-split#198)

Introduces HorizonFallbackReader (src/horizonFallback.ts) that wraps
Horizon.Server and normalises getAccount / getAccountBalances responses
into SDK-wide NormalizedAccount and NormalizedBalance shapes.

StellarSplitClientConfig gains an optional horizonUrl field. When set, the
client creates a HorizonFallbackReader and wires the two new public methods
(getAccount, getAccountBalances) through a FallbackChain so that a failing
Soroban RPC getAccount call automatically retries against Horizon. Write
paths are unaffected and continue to require a live Soroban RPC endpoint.

NormalizedAccount and NormalizedBalance are exported from src/index.ts.
11 unit/integration tests cover: normalised shapes, RPC-healthy path,
RPC-failure → Horizon fallback, missing-horizonUrl error paths.

Closes Stellar-split#198

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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drips-wave Bot commented Jun 25, 2026

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@Atisan12 Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

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Build Horizon API fallback client for RPC outages

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