{"record":{"id":"a5cb5c538b7c1af8","repo":"nautechsystems/nautilus_trader","slug":"rpc-parsing-of-mint-event-is-not-defined-in-this-d","errorCode":null,"errorMessage":"RPC parsing of mint event is not defined in this dex: {}:{}","messagePattern":"RPC parsing of mint event is not defined in this dex: (.+?):(.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/adapters/blockchain/src/exchanges/extended.rs","lineNumber":475,"sourceCode":"        } else {\n            anyhow::bail!(\n                \"RPC parsing of swap event is not defined in this dex: {}:{}\",\n                self.dex.chain,\n                self.dex.name\n            )\n        }\n    }\n\n    /// Parses a mint event from an RPC log.\n    ///\n    /// # Errors\n    ///\n    /// Returns an error if the DEX does not have an RPC mint event parser defined or if parsing fails.\n    pub fn parse_mint_event_rpc(&self, log: &RpcLog) -> anyhow::Result<MintEvent> {\n        if let Some(parse_fn) = &self.parse_mint_event_rpc_fn {\n            parse_fn(self.dex.clone(), log)\n        } else {\n            anyhow::bail!(\n                \"RPC parsing of mint event is not defined in this dex: {}:{}\",\n                self.dex.chain,\n                self.dex.name\n            )\n        }\n    }\n\n    /// Parses a burn event from an RPC log.\n    ///\n    /// # Errors\n    ///\n    /// Returns an error if the DEX does not have an RPC burn event parser defined or if parsing fails.\n    pub fn parse_burn_event_rpc(&self, log: &RpcLog) -> anyhow::Result<BurnEvent> {\n        if let Some(parse_fn) = &self.parse_burn_event_rpc_fn {\n            parse_fn(self.dex.clone(), log)\n        } else {\n            anyhow::bail!(\n                \"RPC parsing of burn event is not defined in this dex: {}:{}\",","sourceCodeStart":457,"sourceCodeEnd":493,"githubUrl":"https://github.com/nautechsystems/nautilus_trader/blob/18893faf8b356be3320add8de2f861b0b647cf06/crates/adapters/blockchain/src/exchanges/extended.rs#L457-L493","documentation":"Raised by parse_mint_event_rpc when no RPC mint-event parser (parse_mint_event_rpc_fn) is registered on the DEX. Mint events represent liquidity additions; without a registered decoder the adapter bails with the DEX chain and name rather than misparsing. This reflects an unregistered capability, not a bad log.","triggerScenarios":"Calling dex.parse_mint_event_rpc(&log) on an RPC-fetched liquidity-event log for a DEX constructed without an RPC mint parser.","commonSituations":"Liquidity analytics pipelines using the RPC transport against HyperSync-only DEX adapters; new DEX integrations missing mint support; forks where the Mint event ABI differs and was left unwired.","solutions":["Register parse_mint_event_rpc_fn for the DEX if RPC mint decoding is required.","Fall back to the HyperSync mint parser path when available.","Exclude mint topics from this DEX's RPC subscriptions when unsupported.","Verify the emitting pool belongs to this DEX before parsing."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":"if !dex_supports(dex, DexEvent::MintRpc) { return Ok(()); }","typeGuard":"fn has_rpc_mint_parser(dex: &Dex) -> bool { dex.parse_mint_event_rpc_fn.is_some() }","tryCatchPattern":"match dex.parse_mint_event_rpc(&log) {\n    Ok(evt) => handle_mint(evt),\n    Err(e) if e.to_string().contains(\"not defined in this dex\") => tracing::debug!(\"RPC mint parsing unsupported on {}\", dex.name()),\n    Err(e) => return Err(e),\n}","preventionTips":["Wire mint parsers for any DEX used in liquidity analytics over RPC.","Keep transport choice and parser registration consistent per DEX.","Verify pool ownership of the log before dispatch.","Add a parser-registration test to the DEX onboarding checklist."],"tags":["dex","rpc","event-parsing","liquidity","rust"],"backgroundTag":"unsupported-operation","analyzedSha":"18893faf8b356be3320add8de2f861b0b647cf06","analyzedAt":"2026-09-08T20:49:34.690Z","contentChangedAt":"2026-09-08T20:49:34.690Z","schemaVersion":2},"datasetVersion":"2026-09-14T00:17:10.932Z"}