I'd like to guarantee a transaction runs once, and once only. Let's
say I'm simulating a bank transfer of $5 from AccountA to AccountB.
The normal transaction is not idempotent:
Repeat until success {
* start txn
* debit $5 from AccountA
* credit $5 to AccountB
* commit txn
}
If this
Hey Jeff,
That is more-or-less the best I've come up with as well. My flow looks like:
1) produce a transaction marker entity with a deterministic key-name
from the involved accounts,
2) Start transaction:
2.a) Load the involved entities (including the marker).
2.b) If I get a
