Overrides/Supersedes
This decision was migrated from the Tech Leads Decision Log as part of a consolidation process. The original decision record can be found here.
RFC
N/A
Stakeholders
All Backend Developers
Contributors
Approvers
This decision was made by the Tech Leads group prior to the adoption of current decision making processes within the FOLIO project.
Background/Context
To translate messages it returns a back-end API needs to know the locale of the client.
Example message: "No item with barcode {itemBarcode} exists", for details see https://wiki.folio.org/display/I18N/How+To+translate+FOLIO
Example locale: de for German
Two ways to pass the current locale to a back-end API have been proposed:
- accept-language HTTP header line
- lang query parameter
For details see FOLIO-3196 - DECISION: Localisation parameter for back-end CLOSED
While it may be possible that Stripes supports multiple ways to pass the locale FOLIO should agree upon a single way that all back-end modules should use.
This was discussed among front-end devs during multiple stripes-architecture meetings with conclusions in 
STRIPES-750 - DECISION: Which module should host back-end translation files? CLOSED , and then by the Tech Council on 2021-06-09 and 2021-06-16.
Assumptions
N/A
Constraints
N/A
Rationale
N/A
Decision
Back-end modules shall read the HTTP Accept-Language header, as specified in RFC-7231 Section 5.3.5, to determine the desired locale of the response.
Implications
- Pros
- N/A
- Cons
- N/A
Other Related Resources