spark no longer working after the great msat migration of CLN v23.05

[pabpas]

Upgraded today to CLN v23.05rc1 and spark-wallet stops working with:

decoded.amount_msat.slice is not a function 

Apparently due to "the Great Msat Migration started in v0.12.0, so "msat" fields are no longer strings with "msat" appended, but simply integers."

ElementsProject/lightning#5986

[Dominion5254]

Can you provide more info on what you did to produce this error?

Does the same error present on the latest?

[pabpas]

Nothing special to produce, just launch spark-wallet with:

$ ./node_modules/.bin/spark-wallet --onion

And this is the output after logging in:

TypeError: decoded.amount_msat.slice is not a function
    at _callee7$ (/home/user/node_modules/spark-wallet/dist/cmd.js:314:108)
    at tryCatch (/home/user/node_modules/spark-wallet/node_modules/regenerator-runtime/runtime.js:63:40)
    at Generator.invoke [as _invoke] (/home/user/node_modules/spark-wallet/node_modules/regenerator-runtime/runtime.js:293:22)
    at Generator.next (/home/user/node_modules/spark-wallet/node_modules/regenerator-runtime/runtime.js:118:21)
    at asyncGeneratorStep (/home/user/node_modules/spark-wallet/dist/cmd.js:41:103)
    at _next (/home/user/node_modules/spark-wallet/dist/cmd.js:43:194)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)

spark v0.3.1
cln 23.05rc4, which AFAIK is the same as the final release.

[cryptoteun]

Can confirm this. I just updated to cln 23.05 and my spark-wallet stopped working with the same error.
I run spark in docker, spark version v0.3.1

[JaviLib]

Is this app maintained? It seems that this trivial error is not corrected anymore.

[3cola]

I made a fork for this repo, and I made a commit that should fix the issue of the great msat migration of CLN v23.05.
Along the way, I also changed the defaults to expert mode, display the amounts in sats, and the default theme to darkly.