Andrew Miller
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transaction.get_interchain / block.get_interchain take per_chain= and chains= kwargs mapping to prime-node's ?perChain=&chains= params. Default (no kwargs) returns one anchor per chain. Shared interchain_query() helper, exported; pytest.
28 lines
1.0 KiB
Python
28 lines
1.0 KiB
Python
"""Query builder for the interchain-trace endpoints.
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Anchor proofs are chained, so by default the trace returns the first anchor per
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public chain; these options change how many and which chains are returned.
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"""
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from typing import List, Optional
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from urllib.parse import quote
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def interchain_query(
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per_chain: Optional[int] = None, chains: Optional[List[str]] = None
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) -> str:
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"""Build the "?perChain=...&chains=..." suffix for the interchain trace
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endpoints.
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Returns "" when nothing is set (the server then applies its defaults: one
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anchor per chain, all chains). ``per_chain`` caps anchors per public chain,
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earliest-first (1 = first per chain; 0 = all). ``chains`` restricts to the
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given chain ids ("1" = ETH mainnet, "0" = BTC; testnet ids differ).
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"""
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parts: List[str] = []
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if per_chain is not None:
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parts.append(f"perChain={int(per_chain)}")
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if chains:
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parts.append("chains=" + ",".join(quote(str(c), safe="") for c in chains))
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return "?" + "&".join(parts) if parts else ""
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