Build toolBuild tooltypeRuns at build time. Nothing of it ships in the deployed application.See every one →What this type is →by a community orgby a community orgoriginPublished by a community organisation, so it outlives any one maintainer.See every one →

ui5-middleware-iasync

A UI5 dev-server middleware built on browsersync.io that syncs user interactions across connected browsers over a websocket, replaying an action from one browser in the others for manual testing.

Built on browsersync.io, this opens a websocket connection to every browser pointed at the UI5 app and relays interaction events between them, so an action taken in one browser is replayed in the others. It also injects HTML into index.html to remap certain UI5 control events for that purpose: the sap.m.Button click event is overwritten with its tap event. The README warns that this control manipulation can lead to unexpected results in the UI, and asks for UI5 CLI 3.0 or later for the specVersion 3.0 support it depends on.

Facts

Latestv3.0.0-alpha.10ReleasedLast pushLicenceApache-2.0

Where it sits

Lives in
Provides
Build and dev-server toolingUI5Build and dev-server toolingcapabilityServing an app locally and building it for deployment — proxying a backend, transpiling, bundling, and shaping the result for whatever will host it.

Who is behind it

UI5 CommunityUI5 CommunityOrganisationMaintains this
In the atlas: maintains 69
@ui5-community
maintainerDimitar FenerskiPersonContributes to this
In the atlas: contributes to 23
@dfenerski
Florian VogtPersonContributes to this
In the atlas: contributes to 50, wrote 2
@flovogt
Marian ZeisPersonContributes to this
In the atlas: maintains 35, contributes to 86, wrote 25
@marianfoo
Peter MuessigPersonContributes to this
In the atlas: maintains 14, contributes to 80, wrote 1
@petermuessig
Merlin BeutlbergerPersonContributes to this
In the atlas: contributes to 18, wrote 1
@RandomByte
Jakob Marius KjaerPersonContributes to this
In the atlas: maintains 2, contributes to 24, wrote 1
@uxkjaer
Volker BuzekPersonContributes to this
In the atlas: maintains 7, contributes to 53, wrote 2
@vobu
7 contributors

What it declares

Every artifact

Type
Build tool
Origin
By a community org

As a build tool

Distributed through
npm

Connections1

Install

npm add ui5-middleware-iasync

Derived from the package name. No recipe recorded; the README has the configuration.

README

quoted from ui5-community/ui5-ecosystem-showcase under Apache-2.0, read
ui5-community/ui5-ecosystem-showcase/packages/ui5-middleware-iasync/README.mdOn GitHub

UI5 middleware for syncing interactions across browsers

👋 This is an open‑source, community‑driven project, developed and actively monitored by members of the UI5 community. You are welcome to use it, report issues, contribute enhancements, and support others in the community.

Middleware for ui5-server, syncing interactions between different browsers, hopefully somewhat easing manual testing :)

Prerequisites

⚠️ UI5 CLI Compatibility All releases of this UI5 CLI extension using the major version 3 require UI5 CLI V3. Any previous releases below major version 3 (if available) also support older versions of the UI5 CLI. But the usage of the latest UI5 CLI is strongly recommended!

Install

npm install ui5-middleware-iasync --save-dev

Configuration options (in $yourapp/ui5.yaml)

  • https: <boolean> default: false
    whether to use the middleware via SSL/wss
  • httpModule: <string>, default: undefined
    capability to e.g. use http2
  • port: <integer>, default: 3000
    port to run middleware at
  • debug: <boolean>, default: false
    display extensive logging
  • logConnections: <boolean>, default: true
    show connected browsers

Usage

  1. Define the dependency in $yourapp/package.json:
"devDependencies": {
    // ...
    "ui5-middleware-iasync": "*"
    // ...
}
  1. configure it in $yourapp/ui5.yaml:
server:
  customMiddleware:
  - name: ui5-middleware-iasync
    beforeMiddleware: serveResources
    configuration:
      https: false
      debug: false
      logConnections: true
      port: 4711

How it works

iasync uses browsersync.io under the hood. It transmits user interactions of the UI via a websocket pool. Respectively, all browsers connected to http://ui5-app:port open a websocket connection, listening for and receiving interactions events.

Additionally, iasync injects custom HTML into index.html, manipulating browser event handlers of UI5 controls - see lib/ui5mangler.html. E.g. the sap.m.Button's click event is overwritten with its' tap event.

Misc/FAQ

Watch Out!
Due to manipulation of the UI5 controls (see above), interactions of the UI might lead to unexpected results!

License

This work is licensed under Apache 2.0.

Built with care (and a lot of caffeine). If this helped you build, test, or ship, the next coffee — or drink — is on you when you bump into a contributor.

Apache-2.0, read

History

Latest

v3.0.0-alpha.10

Notes

Note: Version bump only for package ui5-middleware-iasync

  1. v3.0.0-alpha.9

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  2. v3.0.0-alpha.8

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  3. v3.0.0-alpha.7

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  4. v3.0.0-alpha.6

    Fixes 1

    Notes
    Bug Fixes
  5. v3.0.0-alpha.5

    Fixes 1

    Notes
    Bug Fixes
  6. v3.0.0-alpha.4

    Features 1

    Notes
    Features
    • enhanced v4 compat + update dependencies (#1070) (2d7ed16)
  7. v3.0.0-alpha.3

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  8. v3.0.0-alpha.2

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  9. v3.0.0-alpha.1

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  10. v3.0.0-alpha.0dated in the atlas

    Breaking 1, Features 2

    Notes
    Features
    BREAKING CHANGES
    • The support for UI5 Tooling V2 has been removed
  11. v1.0.0-alpha.4

    Fixes 1

    Notes
    Bug Fixes
  12. v1.0.0-alpha.3

    Fixes 1

    Notes
    Bug Fixes
  13. v1.0.0-alpha.2

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  14. v1.0.0-alpha.1

    Breaking 26, Other 2

    Notes
    BREAKING CHANGES
    • new package manager

    • refactor: updated tests to pass with pnpm

    • refactor: iasync still failing

    • feat(ui5-tooling-modules): support pnpm / node_modules symlinks

    • fix(ui5-app): make Karma work with pnpm

    • chore(ui5-app): remove uiveri5 from sample

    • chore(ui5-app): add updated wdio.conf

    • fix: make prettier and eslint work with pnpm

    • fix: fix cf_dest tests

    restructured tests and added node_modules as symlink

    • fix(ui5-app): adding eslint for wdio and mocha

    • chore(ui5-middleware-cfdestination): cleanup

    • feat(ui5-tooling-modules): add bundling support for AMD

    • chore(ui5-tooling-modules): cleanup

    • new package manager

    • refactor: updated tests to pass with pnpm

    • refactor: iasync still failing

    • feat(ui5-tooling-modules): support pnpm / node_modules symlinks

    • fix(ui5-app): make Karma work with pnpm

    • chore(ui5-app): remove uiveri5 from sample

    • chore(ui5-app): add updated wdio.conf

    • fix: make prettier and eslint work with pnpm

    • fix: fix cf_dest tests

    restructured tests and added node_modules as symlink

    • fix(ui5-app): adding eslint for wdio and mocha

    • chore(ui5-middleware-cfdestination): cleanup

    • feat(ui5-tooling-modules): add bundling support for AMD

    • chore(ui5-tooling-modules): cleanup

  15. v1.0.0-alpha.0

    Breaking 26, Features 1

    Notes
    Features
    BREAKING CHANGES
    • new package manager

    • refactor: updated tests to pass with pnpm

    • refactor: iasync still failing

    • feat(ui5-tooling-modules): support pnpm / node_modules symlinks

    • fix(ui5-app): make Karma work with pnpm

    • chore(ui5-app): remove uiveri5 from sample

    • chore(ui5-app): add updated wdio.conf

    • fix: make prettier and eslint work with pnpm

    • fix: fix cf_dest tests

    restructured tests and added node_modules as symlink

    • fix(ui5-app): adding eslint for wdio and mocha

    • chore(ui5-middleware-cfdestination): cleanup

    • feat(ui5-tooling-modules): add bundling support for AMD

    • chore(ui5-tooling-modules): cleanup

    • chore: fix code style

    • fix(ui5-task-flatten-library): support files without extensions

    • refactor: updated tests to pass with pnpm

    • feat(ui5-tooling-modules): support pnpm / node_modules symlinks

    • fix: make prettier and eslint work with pnpm

    • fix: update actions, lerna, vscode for pnpm

    • chore: only run test on tooling extensions

    • chore: use sequential tests for ava

    • chore: add @ui5/cli dev dependency for ava tests

    • chore: enable support for local act GH action tests

    • chore: add docu for local GitHub action execution

    • chore: docu cleanup

    • chore: re-add ncu scripts

    Co-authored-by: Peter Muessig peter.muessig@sap.com

  16. v0.1.0-alpha.10

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  17. v0.1.0-alpha.9

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  18. v0.1.0-alpha.8

    Other 1

    Notes
    Reverts
    • Revert "chore: add metadata to package.json for all packages for ui5-community website (#600)" (#601) (b6037d4), closes #600 #601
  19. v0.1.0-alpha.7

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  20. v0.1.0-alpha.6

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  21. v0.1.0-alpha.5

    Fixes 1

    Notes
    Bug Fixes
    • deps: update dependencies version (2444781)
  22. v0.1.0-alpha.4

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  23. v0.1.0-alpha.3

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  24. v0.1.0-alpha.2

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  25. v0.1.0-alpha.1

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  26. v0.1.0-alpha.0

    Features 1

    Notes
    Features
    • pwa: added pwa build for sample application (c36baf2)
  27. v0.0.2-alpha.4

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  28. v0.0.2-alpha.3

    Fixes 1

    Notes
    Bug Fixes
    • avoid to pack iasync gif for NPM package (105f64b)
  29. v0.0.2-alpha.2

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  30. v0.0.2-alpha.1

    Notes

    Note: Version bump only for package ui5-middleware-iasync

  31. v0.0.2-alpha.0

    Notes

    Note: Version bump only for package ui5-middleware-iasync

3downloads per week, npm
Weekly downloads for ui5-middleware-iasync26 complete calendar weeks from 2026-04-20 to 2026-10-18; the latest total is 3.20 Apr – 26 Apr: 1827 Apr – 3 May: 774 May – 10 May: 3711 May – 17 May: 4418 May – 24 May: 23825 May – 31 May: 1181 Jun – 7 Jun: 538 Jun – 14 Jun: 4215 Jun – 21 Jun: 3122 Jun – 28 Jun: 4829 Jun – 5 Jul: 156 Jul – 12 Jul: 1513 Jul – 19 Jul: 520 Jul – 26 Jul: 4627 Jul – 2 Aug: 83 Aug – 9 Aug: 7110 Aug – 16 Aug: 4517 Aug – 23 Aug: 1624 Aug – 30 Aug: 331 Aug – 6 Sept: 77 Sept – 13 Sept: 4314 Sept – 20 Sept: 1321 Sept – 27 Sept: 1828 Sept – 4 Oct: 405 Oct – 11 Oct: 212 Oct – 18 Oct: 3
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Details

Sources4
Added by handdiscovered herechecked
npm registry, ui5-middleware-iasyncversion, releases, installschecked
packages/ui5-middleware-iasync/README.mdquoted, and what the entry declareschecked

Sources are graph entities: the same page may back several entries, and an unreachable source flags every row that rests on it.

Compatibility and provenance
latestv3.0.0-alpha.10
first release
releases and cadence34, ~114d median
discovered viaAdded by hand
first seen in the atlas
ecosystem and domainui5, developer-experience
Contributors7
History in the atlas1
  1. First seen.
For your agent
Ref
artifact:ui5-community-ui5-middleware-iasync
JSON
/artifacts/ui5-community-ui5-middleware-iasync.json
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