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Say what actually happened when the REST API reduces a page size - #1448

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milanmajchrak merged 1 commit into
customer/jcufrom
fix/862-specific-page-size-warning-jcu
Aug 11, 2026
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Say what actually happened when the REST API reduces a page size#1448
milanmajchrak merged 1 commit into
customer/jcufrom
fix/862-specific-page-size-warning-jcu

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@milanmajchrak milanmajchrak commented Aug 11, 2026

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Description

After #1440 one self link warning is still reported on purpose: a caller asking for a page size the REST API won't serve. The generic message blames the endpoint, which is wrong for that case, so it gets its own.

Instructions for Reviewers

Before:

The response for '.../bundles?size=9999' has the self link '.../bundles?size=1000'.
These don't match. This could mean there's an issue with the REST endpoint

After:

The request for '.../bundles?size=9999' asked for a page of 9999 elements, but the REST API
served 1000. It won't put more than MAX_PAGE_SIZE elements in a page, so this request can't
get what it asks for

Only when the page size is the only difference and the served one is smaller. Everything else keeps the generic message.

How to test: set an elementsPerPage above 1000 somewhere, load the page, read the console.

Checklist

  • My PR is small in size.
  • My PR passes ESLint validation.
  • My PR doesn't introduce circular dependencies.
  • My PR includes TypeDoc comments for all new methods.
  • My PR passes all specs/tests and includes new/updated specs or tests.
  • My PR includes details on how to test it.
  • Base is customer/jcu, not main.

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Pull request overview

This PR refines the console warning emitted by ensureSelfLink so that when the only mismatch is the REST API capping a requested size parameter to a smaller value, the warning explains that the caller requested an unservable page size rather than implying an endpoint problem.

Changes:

  • Add URL parsing helpers to detect when the self link differs solely due to a reduced size parameter.
  • Introduce a dedicated warning message for “requested page size reduced by REST API” cases; otherwise keep the existing generic warning.
  • Extend unit tests to cover the new reduced-page-size warning behavior and fallback scenarios.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File Description
src/app/core/data/dspace-rest-response-parsing.service.ts Adds page-size extraction and conditional warning generation for reduced page-size self link mismatches.
src/app/core/data/dspace-rest-response-parsing.service.spec.ts Updates specs to assert the new reduced-page-size warning and verify fallback to the generic warning.

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Comment thread src/app/core/data/dspace-rest-response-parsing.service.ts Outdated
Comment thread src/app/core/data/dspace-rest-response-parsing.service.spec.ts
Comment thread src/app/core/data/dspace-rest-response-parsing.service.ts Outdated

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Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

@milanmajchrak
milanmajchrak force-pushed the fix/862-specific-page-size-warning-jcu branch from 3f0664d to 83f840d Compare August 11, 2026 07:09
The generic wording ends with "This could mean there's an issue with the REST
endpoint", which points at the backend. For a reduced page size that is the wrong
place to look: the API did nothing wrong, the caller asked for a bigger page than
it will serve.

  The request for '.../bundles?size=9999' asked for a page of 9999 elements, but
  the REST API served 1000. Ask for at most MAX_PAGE_SIZE elements

Anything else keeps the generic message, including a page that came back larger
than requested.

Also drops a stray note from the spec that was left in by #1440.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
@milanmajchrak
milanmajchrak force-pushed the fix/862-specific-page-size-warning-jcu branch from 83f840d to bdd533a Compare August 11, 2026 07:20
@milanmajchrak
milanmajchrak requested a balanced review from Copilot August 11, 2026 10:27

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Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

@milanmajchrak
milanmajchrak merged commit 382a721 into customer/jcu Aug 11, 2026
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2 participants