Build an interactive engineering sandbox that demonstrates how pagination can fail when datasets change, records are sorted inconsistently, or clients misunderstand API pagination contracts.
Allow developers to configure a sample dataset, sort order, page size, pagination strategy, and simulated concurrent insertions or deletions.
Support offset pagination, cursor pagination, and keyset pagination. Visualize:
Duplicate records returned across pages.
Records skipped during concurrent changes.
Incorrect ordering and unstable sort keys.
Cursor expiration or malformed cursor handling.
Client-side assumptions about total counts.
Performance differences under configurable dataset sizes.
Recovery strategies and recommended test cases.
Provide a side-by-side request and response viewer, a step-through timeline, and executable sample code for a selected implementation. Make performance claims only from measured sandbox runs. Clearly label simulated network and database behavior, and include automated tests for each failure scenario.
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