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feat: Add support for buy_exact_sol_in and buy_exact_quote_in instructions

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PumpFun and PumpSwap have additional buy instruction variants that were not being parsed:

- PumpFun: `buy_exact_sol_in` (discriminator: [56, 252, 116, 8, 158, 223, 205, 95])
- PumpSwap: `buy_exact_quote_in` (discriminator: [198, 46, 21, 82, 180, 217, 232, 112])

These discriminators are from the official PumpFun IDL:
https://github.com/pump-fun/pump-public-docs/tree/main/idl

Without this fix, approximately 4-5% of trades were being missed.
This commit is contained in:
vibes
2026-01-06 10:14:06 +00:00
parent da4f8f8423
commit ed8831cc8a
4 changed files with 4 additions and 2 deletions
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src/streaming/event_parser/protocols/pumpfun/parser.rs
+1 -1
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@@ -27,7 +27,7 @@ pub fn parse_pumpfun_instruction_data(
discriminators::CREATE_V2_TOKEN_IX => {
parse_create_v2_token_instruction(data, accounts, metadata)
}
discriminators::BUY_IX => parse_buy_instruction(data, accounts, metadata),
discriminators::BUY_IX | discriminators::BUY_EXACT_SOL_IN_IX => parse_buy_instruction(data, accounts, metadata),
discriminators::SELL_IX => parse_sell_instruction(data, accounts, metadata),
discriminators::MIGRATE_IX => parse_migrate_instruction(data, accounts, metadata),
_ => None,