I'm trying to remember some conference talk from l...
# squarelibrariesc
Colton Idle
05/02/2025, 12:57 AMI'm trying to remember some conference talk from long long ago (maybe droidcon montreal) and I'm fairly certain there was some talk regarding a square library that was used to persist transactions before they could actually be sent over the wire (i.e. like if a payment reader was taking a payment while a device is online. so it had to be save). i also think that was the first time i learned of the word "idempotency". anyway. if that rings a bell for any of you square folks... plz let me know!
j
jw
05/02/2025, 1:12 AMtape
jw
05/02/2025, 1:14 AMBob Lee gave a talk at Devoxx 2012
😢 1
❤️ 1
jw
05/02/2025, 1:14 AMNot sure about other talks that were public. I gave two private talks about it.
c
Colton Idle
05/02/2025, 1:15 AMnever been to devoxx. only droidcons. but ah. i do recall "dukttape"?
i will look that up
j
jw
05/02/2025, 1:15 AMduktape is unrelated
c
Colton Idle
05/02/2025, 1:15 AMoh. lol
Colton Idle
05/02/2025, 1:15 AMwhoops.
j
jw
05/02/2025, 1:15 AMthat's a JS engine we packaged on Android for a while
👍 1
c
Colton Idle
05/02/2025, 1:16 AMlooks like tape is "archived". any tldr on what the "thing to do" when you need to store transactions like that (i.e. payments) in an env where you might not have network?
j
jw
05/02/2025, 1:17 AMsqlite
jw
05/02/2025, 1:17 AMtape was basically the write-ahead log of sqlite without the database behind it
jw
05/02/2025, 1:17 AMjust a durable queue
c
Colton Idle
05/02/2025, 1:17 AMah okay. so Sqlite with WAL enabled is what I'd want?
j
jw
05/02/2025, 1:18 AMyeah, probably
jw
05/02/2025, 1:18 AMtape came from Android 1.6/2.1 days where sqlite was a lot harder and less reliable
c
Colton Idle
05/02/2025, 1:18 AM🙏
c
Colton Idle
05/02/2025, 1:18 AMcool. thats exactly what im doing then. with a UUID for idempotency attached to each "transtion" in the transaction table.
j
jw
05/02/2025, 1:18 AMyep, sounds right
c
Colton Idle
05/02/2025, 1:19 AM618 views... about to have 619.
got some nighttime watching. let me get the popcorn. Cheers! glad i asked!
2 Views