refactor(utxo): Esplora client helpers, class, and per-chain factory - #838
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graciangabriel8 wants to merge 2 commits into
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refactor(utxo): Esplora client helpers, class, and per-chain factory#838graciangabriel8 wants to merge 2 commits into
graciangabriel8 wants to merge 2 commits into
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Part of #716. Adds the retry/URL-resolution helpers, the shared EsploraIndexerClient (BTC's EsploraIndexer logic verbatim, parametrized by baseUrl + chain profile), a BtcEsploraIndexerClient subclass layering getTx on top, and getEsploraClient(chain) returning a per-chain singleton. getTx exists only on the BTC subclass, so LTC instances lack it at runtime, not just in the type. Still inert — no existing file imports this module yet.
A caller holding a variable typed as the EsploraChain union (rather than a "btc"/"ltc" literal) has no matching overload to resolve against otherwise. Needed by the table-driven pin tests in the next PR of this series.
This was referenced Aug 21, 2026
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Adds the shared retry/URL-resolution helpers,
EsploraIndexerClient(BTC'sEsploraIndexerlogic copied verbatim, parametrized bybaseUrl+ chain profile), aBtcEsploraIndexerClientsubclass layeringgetTxon top, andgetEsploraClient(chain)returning a per-chain singleton keyed off the resolved URL — mirroringgetBitcoinIndexer/getLitecoinIndexer's existing cache shape.getTxlives only on the BTC subclass, so an LTC instance lacks it at runtime as well as in the type. Still inert — stacked on #837, no existing file imports this module yet.Part of #716