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Ensure state check compatibility with versions < 0.16.0 #661

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Nov 4, 2024
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23 changes: 21 additions & 2 deletions cashu/wallet/v1_api.py
Original file line number Diff line number Diff line change
Expand Up @@ -573,9 +573,28 @@ async def check_proof_state(self, proofs: List[Proof]) -> PostCheckStateResponse
states.append(ProofState(Y=p.Y, state=ProofSpentState.pending))
else:
states.append(ProofState(Y=p.Y, state=ProofSpentState.spent))
ret = PostCheckStateResponse(states=states)
return ret
return PostCheckStateResponse(states=states)
# END backwards compatibility < 0.15.0

# BEGIN backwards compatibility < 0.16.0
# payload has "secrets" instead of "Ys"
if resp.status_code == 422:
logger.warning(
"Received HTTP Error 422. Attempting state check with < 0.16.0 compatibility."
)
payload_secrets = {"secrets": [p.secret for p in proofs]}
resp_secrets = await self.httpx.post(
join(self.url, "/v1/checkstate"),
json=payload_secrets,
)
self.raise_on_error(resp_secrets)
states = [
ProofState(Y=p.Y, state=ProofSpentState(s["state"]))
for p, s in zip(proofs, resp_secrets.json()["states"])
]
return PostCheckStateResponse(states=states)
# END backwards compatibility < 0.16.0

self.raise_on_error_request(resp)
return PostCheckStateResponse.parse_obj(resp.json())

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