Code quality
API Pagination Contract Cleanup: Remove Legacy Export Cursors After Reports Move
API pagination contract cleanup for legacy export cursors starts when reports, exports, or SDKs no longer need an old cursor format but the API still accepts it. Pagination code is easy to leave alone because old cursors are small, but they are part of the client contract: exports may resume from them, partners may store them, and support scripts may replay them during incidents.
For stale API export cursors and pagination compatibility branches, the review should prove which clients still send the format, which exports can restart from the new cursor, and whether generated SDKs or documentation still teach the old behavior. The useful output is a cursor retirement pull request with caller evidence, contract diff, migration note, rollback switch, and prevention rule.
Key takeaways
- Review stale API export cursors and pagination compatibility branches through client telemetry, exported report jobs, SDK references, and contract tests, not age alone.
- Use one release cycle plus enough export and partner usage to catch older deploys, scripts, and integrations before deciding that quiet means unused.
- Start with the reversible move: stop documenting and emitting the legacy cursor before rejecting it at the API boundary.
- Slow down when breaking quiet export jobs or preserving confusing cursor formats after reports migrate is still plausible.
- Prevent repeat cleanup by making pagination formats declare an owner, supported clients, migration path, and sunset trigger.
Map Export Cursor Callers
Start with one API resource or export family. Include server handlers, gateway transforms, generated clients, report schedulers, replay scripts, documentation, and telemetry. Cursor cleanup is unsafe when the server change is reviewed without the clients that store or replay cursor values.
| Field | Why it matters |
|---|---|
| Owner | Cleanup needs a person or team that can accept the decision |
| Current purpose | A short reason to keep the item, written in present tense |
| Last meaningful use | Last accepted legacy cursor, last emitted legacy cursor, export schedule, and client version |
| Dependency evidence | API logs, SDK references, generated docs, contract tests, report jobs, and support scripts |
| Risk if wrong | The outage, data loss, access failure, or rollback gap the review must avoid |
| Next action | Keep, reduce, archive, disable, remove, or investigate |
Do not make the inventory larger than the decision. A short list with owners and evidence beats a perfect spreadsheet that nobody is willing to act on.
Cursor Evidence Before Removal
The useful question is not “how old is it?” It is “what would break, become harder to recover, or lose accountability if this disappeared?” For API pagination contract cleanup for legacy export cursors, collect enough evidence to answer that without relying on naming conventions.
| Check | What to look for | Cleanup signal |
|---|---|---|
| Client telemetry | Cursor parameter values, user agent, SDK version, partner ID, and export job name | Supported callers no longer send the legacy format |
| Server emission | Response serializers, next-page token builders, compatibility branches, and feature flags | New responses no longer create old cursors |
| Contract surface | OpenAPI examples, SDK types, docs snippets, and generated fixtures | The public contract points to the replacement format |
| Restart safety | Long exports, retries, backfills, webhooks, and replay jobs | In-flight work can resume without the old cursor |
Use several signals together. Activity can miss monthly jobs and incident-only paths. Ownership can be stale. Cost can distract from security or recovery risk. The strongest case combines runtime data, dependency checks, owner review, and a rollback plan.
If the evidence conflicts, label the item “investigate” with a named owner and review date. That is still progress because the next review starts with a narrower question.
Example Pagination Reference Check
Search handlers, SDKs, exports, and tests before removing a legacy cursor or page parameter.
rg "cursor_v1|nextPageToken|page_token|offset" src clients sdk tests
rg "pagination|cursor|limit|offset" openapi docs examples
rg "export|backfill|replay|sync" src jobs scripts docs
Treat the output as a candidate list. Do not pipe these checks into delete commands; add owner review, dependency checks, and a rollback path first.
Deprecate Cursor Formats in Stages
Use the least permanent move that proves the decision. In API pagination contract cleanup for legacy export cursors, the first move should usually change creation before rejection.
- Stop emitting the legacy cursor from current servers while still accepting it for a review window.
- Update generated SDKs, docs examples, and export restart tests before changing the parser.
- Return explicit deprecation warnings or metrics for old cursor use before rejecting requests.
Track the cleanup candidate with a simple priority score:
| Score | Good sign | Bad sign |
|---|---|---|
| Impact | Meaningful spend, risk, toil, noise, or confusion disappears | The item is cheap and low-risk but politically distracting |
| Confidence | Owner, purpose, and dependency path are understood | The team is guessing from age or name |
| Reversibility | Restore, recreate, re-enable, or rollback path exists | Deletion would be the first real test |
| Prevention | A rule can stop recurrence | The same pattern will return next month |
Start with high-impact, high-confidence, reversible candidates. Defer confusing items only if they get an owner and a date; otherwise “defer” becomes another word for keeping waste permanently.
Clients That Page Quietly
Some cleanup candidates are supposed to look quiet. Do not rush these cases:
- Long-running exports that store cursors between runs.
- Partner integrations, old mobile apps, and customer scripts that update slower than the server.
- Support, billing, compliance, or incident replay jobs that page only when something goes wrong.
For these cases, use a longer observation window, explicit owner approval, and a staged reduction. The point is not to avoid cleanup; it is to avoid making the first proof of dependency an outage.
Run the Cursor Retirement
Run API pagination contract cleanup for legacy export cursors as a decision review, not an open-ended hygiene project.
- Pick the narrow scope and export the candidate list.
- Add owner, current purpose, last-use evidence, dependency checks, and risk if wrong.
- Remove obvious false positives, then ask owners to choose keep, reduce, archive, disable, remove, or investigate.
- Apply the least permanent useful change first.
- Watch the signals that would reveal a bad decision.
- Complete the final removal only after the review window closes.
- Save a cursor retirement pull request with caller evidence, contract diff, migration note, rollback switch, and prevention rule.
For broader cleanup planning, use the cleanup library to pair this guide with related notes about API routes, generated clients, and documentation cleanup.
Prevent Cursor Compatibility Branches
Prevention should change the creation path, not just the cleanup path. For API pagination contract cleanup, every cursor format should have a support rule.
- Require new cursor formats to name owner, supported clients, restart behavior, and migration trigger.
- Add contract tests that prove both emission and acceptance behavior during migrations.
- Keep generated SDK examples aligned with the server format so old cursors do not reappear in docs.
The recurring review should be short: sort by impact, pick the unclear items, assign owners, and close the loop on anything nobody claims. If the review keeps producing the same class of candidate, fix the creation path instead of celebrating repeated cleanup.
Example Decision Record
Use a compact record so the cleanup can be reviewed later without reconstructing the whole investigation.
| Field | Example entry for this cleanup |
|---|---|
| Candidate | Stale API export cursors and pagination compatibility branches in backend APIs, export jobs, SDKs, partner integrations, support scripts, and client telemetry |
| Why it looked stale | Low recent activity, unclear owner, or no current consumer after the first review |
| Evidence checked | Client telemetry, server emission, contract surface, and owner confirmation |
| First reversible move | Stop emitting the old cursor while still accepting it |
| Watch signal | Legacy cursor requests, failed export restarts, SDK issue reports, or partner support tickets |
| Final action | Keep, reduce, archive, disable, or remove after one release cycle plus enough client usage to catch older deploys, scripts, and integrations |
| Prevention rule | Require cursor formats to name owner, supported clients, restart behavior, and migration trigger |
This record is intentionally small. If the decision needs a long narrative, the candidate is probably not ready for removal yet. Keep investigating until the owner, evidence, reversible move, and prevention rule are clear.
FAQ
How often should teams review API pagination compatibility?
Review pagination compatibility after client migrations, report rewrites, export pipeline changes, and API version retirements. Keep the first decision open for at least one release cycle plus the longest export or partner polling cadence.
What is the safest first action?
Stop emitting the legacy cursor while continuing to accept it. That proves new clients can move without immediately breaking old stored cursors.
What should not be removed quickly?
Do not rush long-running exports, partner integrations, old mobile apps, billing jobs, compliance reports, or incident replay scripts. These clients may page rarely but still rely on stored cursors.
How do you make the decision useful later?
Write the decision as a small operational record: candidate, owner, evidence, chosen action, watch signals, rollback path, final date, and prevention rule. That format helps future engineers, search engines, and AI assistants understand the cleanup without guessing.