0010301: Adding new exchange via taler://withdraw-exchange/ never stops loading

ID	Project	Category	View Status	Date Submitted	Last Update
0010301	Taler	wallet (Android App)	public	2025-08-29 14:09	2026-02-04 19:02

Reporter	mikolai	Assigned To	avalos	Resolution deadline
Implementer		Reviewer
Release signed by		Deployed by
Verifier		Communicator
Data protection authority notification required	No
CSIRT notification required	No
Estimated effort (hours)		Actual effort (hours)	0
Fast-track	No
Work package	none
Priority	normal	Severity	major	Reproducibility	always
Status	closed	Resolution	fixed
Target Version	1.4	Fixed in Version	1.4

Summary	0010301: Adding new exchange via taler://withdraw-exchange/ never stops loading
Description	This might or not be an issue with the ToS failing to load, or potentially with our concrete setup for the Datenspuren. Unfortunately pretty bad UX for onboarding new users.
Steps To Reproduce	0. fresh Taler wallet v1.0.8 without configured exchanges 1. open taler://withdraw-exchange/exchange.taler.datenspuren.de/ 2. see the loading screen that never disappears 3. going back still does not show the exchange on the start screen, but it appears in settings under "payment providers" 4. clicking on "withdraw" brings you back to infinite loading 5. opening the terms of services manually from the list of payment providers lets me accept them 6. clicking on "withdraw" still shows the infinite loading screen 7. going back to the main screen now shows the exchange 8. clicking on "withdraw" in the bottom sheet menu now shows a form (with another bug, reported later)
Tags	datenspuren

avalos 2025-09-05 10:00 developer ~0025819	This is what I get. image.png (51,603 bytes) image.png (51,603 bytes)

avalos 2025-09-05 10:03 developer ~0025821	Error getWithdrawalDetailsForAmount TalerErrorInfo(code=WALLET_RECEIVED_MALFORMED_RESPONSE, hint=Error response did not even contain JSON. The request URL might be wrong or the service might be unavailable., message=null, extra={when={"t_ms":1757066543015}, requestUrl="https://bank.taler.datenspuren.de/conversion-info/cashin-rate?amount_credit=SPURLOS%3A0", requestMethod="GET", httpStatusCode=409, contentType="application/json; charset=UTF-8"}) {"code":5128,"hint":"SPURLOS:0 is too small to be converted"}

mikolai 2025-09-05 12:39 developer ~0025824	So maybe same issue as https://bugs.gnunet.org/view.php?id=10303

Christian Grothoff 2025-10-18 22:58 manager ~0026194	Please test again to see if it is fixed!

avalos 2026-01-26 18:51 developer ~0027380	There have been several fixes regarding missing ToS and withdrawals. I can no longer reproduce since exchange.taler.datenspuren.de has been turned off. Please feel free to re-open if a similar issue appears! :)

Date Modified	Username	Field	Change
2025-08-29 14:09	mikolai	New Issue
2025-08-29 14:09	mikolai	Assigned To	=> avalos
2025-08-29 14:09	mikolai	Status	new => assigned
2025-09-05 10:00	avalos	Note Added: 0025819
2025-09-05 10:00	avalos	File Added: image.png
2025-09-05 10:03	avalos	Note Added: 0025821
2025-09-05 12:39	mikolai	Note Added: 0025824
2025-09-05 13:41	mikolai	Tag Attached: datenspuren
2025-10-18 22:58	Christian Grothoff	Note Added: 0026194
2026-01-26 18:51	avalos	Status	assigned => informing
2026-01-26 18:51	avalos	Resolution	open => fixed
2026-01-26 18:51	avalos	Note Added: 0027380
2026-02-04 19:01	Christian Grothoff	Target Version	=> 1.4
2026-02-04 19:02	Christian Grothoff	Fixed in Version	=> 1.4
2026-02-04 19:02	Christian Grothoff	Status	informing => closed