InstructionLIVE

OpenBook V2 PlaceTakeOrder

Real-time decoded data for the PlaceTakeOrder instruction on the OpenBook V2 program. Every time this instruction is executed on Solana, you receive the full decoded payload with 16 accounts and 6 arguments in under 50ms.

Topicsolana.openbook_v2.place_take_order
16accounts
3signers
10writable
6arguments

Accounts

Decoded account addresses included in every PlaceTakeOrder message.

NameTypeSignerWritable
signerPublicKeyyesyes
penalty_payerPublicKeyyesyes
marketPublicKey-yes
market_authorityPublicKey--
bidsPublicKey-yes
asksPublicKey-yes
market_base_vaultPublicKey-yes
market_quote_vaultPublicKey-yes
event_heapPublicKey-yes
user_base_accountPublicKey-yes
user_quote_accountPublicKey-yes
oracle_aPublicKey--
oracle_bPublicKey--
token_programPublicKey--
system_programPublicKey--
open_orders_adminPublicKeyyes-

Arguments

Decoded instruction arguments included in every PlaceTakeOrder message.

NameType
sideenum(bid, ask)
price_lotsi64
max_base_lotsi64
max_quote_lots_including_feesi64
order_typeenum(limit, immediateOrCancel, postOnly, market, postOnlySlide)
limitu8

Subscribe to PlaceTakeOrder

Connect and start receiving decoded data in seconds.

grpcurl -plaintext \
  -H 'x-eventstream-policy: {"version":1,"allowed_programs":"all","allowed_topics":"all"}' \
  -d '{"topic":"solana.openbook_v2.place_take_order","format":"JSON"}' \
  events.nln.clr3.org:443 \
  nln.stream.v1.StreamService/Subscribe

The solana.openbook_v2.place_take_order stream delivers decoded PlaceTakeOrder instruction data from the OpenBook V2 program (opnb2LAfJYbR...) on Solana. Each message includes 16 decoded account addresses and 6 typed arguments, delivered in under 50 milliseconds from on-chain confirmation. Available in both JSON and Protobuf formats via the NoLimitNodes gRPC streaming API.

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