mountPath for middleware is not supporting array or regex

Open

#576 opened on Oct 25, 2021 4 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty: 3/5
Estimated time: 1-2 days
Newbie friendliness: 42/100

Issue type: Bug
Clarity: Mostly clear
Activity status: Stale
Tech stack: javascript
Domain: cli, tooling

Research direction

Start with the UI5 CLI configuration validation that reports Configuration server/customMiddleware/1/mountPath, using the provided ui5.yaml middleware example to reproduce the failure. Check how mountPath is validated and verify that the requested array and regex forms are accepted without the current type error.

Written by the indexing model from the issue text.

Description

Expected Behavior

Support arrays for mountPath just like express does

Current Behavior

It's not supported

Steps to Reproduce the Issue

add middleware with array definition for mountPath

    - name: ui5-middleware-simpleproxy
      afterMiddleware: ui5-middleware-stringreplacer
      mountPath:
        - '/ci/'
        - '/v2/'
        - '/sf/'

Context

UI5 Module Version (output of ui5 --version when using the CLI): 2.13
Node.js Version: 14
npm Version: 8.1

Log Output / Stack Trace

Configuration server/customMiddleware/1/mountPath must be of type 'string'

/home/pieter/projects/xxx/app/ui5.yaml:17

15:     - name: ui5-middleware-simpleproxy
16:       afterMiddleware: compression
17:       mountPath:

Dominant language: JavaScript
Stars: 511
Forks: 83
Avg merge: 1d 5h
Merged PRs (30d): 55

Contributor guide

Open the contributing guide

First steps

Read the whole issue, then the project's contributing guide.
Comment on the issue to say you are picking it up — it saves two people doing the same work.
Fork the repository and make your change on a branch.
Open a pull request that references the issue number.

Similar issues

[feature] OnlyBigBottleTurbo 检查大小瓶数量问题 Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

babalae/bettergi-scripts-list#3674 · Opened Sep 21, 2026
< Polycule > client description does not adhere to the Foundation's branding guidelines Open

ecosystem wording

Difficulty 1/5 Under an hour Newbie friendliness 90/100

matrix-org/matrix.org#3649 · Opened Sep 21, 2026
`minWidth` and `maxWidth` accept percentages the docs say are unsupported Open

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

vadimdemedes/ink#1029 · Opened Sep 20, 2026
[Duplicate Code] Repeated filtered model-alias assembly in proxy server Open

code-quality refactoring

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

github/gh-aw-firewall#8816 · Opened Sep 20, 2026
quickjs: support `timeout=None` (no per-call deadline) in `CodeInterpreterMiddleware` Open

integration:quickjs org:external priority:backlog topic:code-interpreter topic:middleware type:feature

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

langchain-ai/deepagents#6450 · Opened Sep 20, 2026

More JavaScript issues