Standard WG Meeting - May 23rd, 2024

[kriswest]

Date

Thursday 23rd May 2024 - 10am (US eastern timezone EDT) / 3pm (London, BST)

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Agenda

• [x] Convene & roll call, review meeting notices (5mins)
• [x] Review action items from previous meeting (5mins)

  • 1196

• [x] Announcements
  • New look for FDC3 website
  • FDC3 2.1.0 npm module released
• [x] #1136

  • 1207

• [x] #1197
• [ ] AOB
  • Updates from Discussion group meetings
  • Contribution opportunities (issues in need of a PR) (5mins):

  • 564

  • 591

  • 674

  • 719

  • 1001

  • 1006

  • 1105

  • 1173

  • 1203

  • Get involved in the FDC3 for Web POC
  • Volunteer as an FDC3 Editor or Maintainer
  • Q&A
• Adjourn

  Minutes

• Roll call and prior action items:
  • It was noted that the CSL link in the meeting minutes (and hence its template) is broken
  • The remaining docs work is underway on #1108
  • @kriswest and @bingenito agreed that we should 'get something out the door, then backfill in over time'.
  • Further discussion of #1142 will be rolled to the next meeting as the issue still needs to be reworked.
• Announcements
  • 2.1.0 npm package released
  • A participant reported a brief onboarding issue relating to the CSL license being bundled into the module, which is picked up by JFrog Xray and must be classified (but this was quick to achieve)
  • @kriswest mentioned a brief discussion with @robmoffat about reorganizing the FDC3 repo into a more formal monorepo to better separate the docs and software projects, which (amongst other things) would resolve that license bundling so that the module only includes the Apache 2.0 license.
  • This lead on to a short discussion about the mixing of Desktop Agent specifications, consumer documentation and governance info in the FDC3 site making it less accessible to adoptors. For example, the 'getting started' content relates to FDC3 governance rather than using FDC3. The maintainers might consider refactoring this as FDC3 continues to grow.
  • New look FDC3 homepage launched, which collects and presents more info on various aspects of FDC3 (What is it, Why use it, How is it structured, Who's using it, Get involved, Conformance, Training)

• 1136

  • A new contributor (@kemereva) raised the PR (#1207) to implement this proposal - many thanks!
  • A participant asked if the proposed event for 'user channel changed' gives you both the appId and channel details
  • @kriswest:
    • As proposed, the event is for the local app (i.e. the one that registered the listener) so the appId is implict and you can get it from getInfo()
    • The new channel id is given - but not the previous channel id. Participants couldn't immediately think of a use case for the previous channel details and there was consensus that this could be added later if a use case was found.
  • @kriswest asked for and received consent to merge the change once it clears reviews.

• 1197

  • @hellosmithy provided an overview of the use case for this issue:
  • selectively resetting context on a channel such that existing apps on the channel 'reset' AND those that join later don't receive the context that has been reset - which might be used to, for example, reset/release filters
  • e.g. You might have an instrument and timerange as context to filter a list of orders, then wish to release the timerange filter
  • The use case was recognized by a subset of other participants
  • Existing solutions to this based on fdc3.nothing are lacking:
  • Receiving fdc3.nothing can currently only tell you to release all context, and only for apps already listening to the channel, apps that join or getCurrentContext later can still pick up other types. Further channels can only tell you the most recent context received and most recent of each type, rather than the order in which each arrived (to reconstruct when the fdc3.nothing arrived in the sequence).
  • Meeting participants explored the solutions proposed in the ticket and brainstormed a variety of other solutions (e.g listening to an out-of-band channel for resets, sending context with null ids or a standardized id field for reset) - most of which have an undesirable property (like conflicting with required properties in context types, potentially forcing breaking changes to them and poor developer ergonmics).
  • There was consensus that the 'hybrid solution' proposed (an API call to reset context and an update to the fdc3.nothing type to be able to reference another type for selective reset messaging to apps) is the most viable solution proposed.
  • The API call indicates to the DA that it should remove the context (either identified type or all) from the channel AND issue an fdc3.nothing message to existing subscribers.
  • We might also consider allowing apps to send the fdc3.nothing messages and have the DA react to those...
  • @hellosmithy was asked to update the proposal issue with the result of the disucssion, with help from @kriswest, to be brought back for a vote on inclusion at the next meeting
  • There was also a short discussion of whether this was a breaking change for .NET as it changes the API interface - it may need to be adopted as optional or a solution to that found.

Action Items

• [x] @robmoffat/@kriswest Fix the CSL link in the meeting agenda template
• [x] @finos/fdc3-maintainers / @finos/fdc3-editors to complete review of #1207 and merge
• [x] @hellosmithy & @kriswest update issue #1197 based on the discussion, before moving to a PR

Rolled over:

• [ ] @bingenito & @kriswest to complete PR #1108 and submit for review - to include at least a basic version of supported platforms content (to be improved later)
• [ ] @kriswest & @mistryvinay look at #1151 and consider taking over final changes (which include deleting existing context docs, hooking up script to auto-generate as part of build and making sure existing URLs do not break)
• [ ] @kriswest & @julianna-ciq rework issue #1142 to reflect the other use cases and update the proposed change based on the discussion

Untracked attendees

Full name	Affiliation	GitHub username

[hellosmithy]

@kriswest the meeting says Thursday 25th May 2024, will it be today - Thursday 23rd May?

[mistryvinay]

@kriswest the meeting says Thursday 25th May 2024, will it be today - Thursday 23rd May?

Great spot @hellosmithy !! I have just updated the issue.

[kriswest]

Oof, sorry about that! Thanks for correcting it @hellosmithy and @mistryvinay

[mistryvinay]

Vinay Mistry / Symphony 🎵

[Lecss]

Alex Dumitru / Citi

[bingenito]

Brian Ingenito / Morgan Stanley

[milindchidrawar]

Milind Chidrawar / Singletrack