Every subscription created here is sent to tt-fix as consumerId=mock-experimental. The temp SQS queue's SNS filter policy matches the same value, so this instance only sees ticks for the subscriptions IT created, even when other mock-consumer instances are running with different consumerIds for the same TT user.
| Subscription ID | User | Instrument | Created |
|---|
Each card shows the raw tick stream for one subscription, capped at the most
recent 200 ticks. Bid / ask / last reflect whatever level was updated in that
specific tick at any depth of the book, this is not a top-of-book view. The
service subscribes at marketDepth = 5, so the values can legitimately
move up or down as different levels are updated. A proper consumer would
maintain a per-price-level book and derive top-of-book from
NEW / CHANGE / DELETE updates.