feat: add get_proxy_deposit_cost metadata constant extraction#198
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feat: add get_proxy_deposit_cost metadata constant extraction#198
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Extract ProxyDepositBase + ProxyDepositFactor from runtime metadata via subxt-core, replacing the legacy polkadot-js account-lib approach. This is needed by the WASM path to compute input/output values when explaining unstaking batch transactions. - New metadata_constants module with get_proxy_deposit_cost() - WASM binding via ParserNamespace.getProxyDepositCost(metadataHex) - TS wrapper returning bigint in js/parser.ts - Rust tests with real Westend metadata fixture Ticket: BTC-3118
davidkaplanbitgo
approved these changes
Mar 9, 2026
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Extract ProxyDepositBase + ProxyDepositFactor from runtime metadata via subxt-core, replacing the legacy polkadot-js account-lib approach. This is needed by the WASM path to compute input/output values when explaining unstaking batch transactions.
Ticket: BTC-3118