Replace @knocklabs/client axios transport with fetch

[cjbell]

Description

Replace the internal @knocklabs/client HTTP transport from axios/axios-retry to native fetch while preserving the existing makeRequest({ method, url, params, data }) call shape. This also removes the axios dependencies from the client package and adds a patch changeset.

Follow-up review hardening adds a guarded fetch resolver with an actionable no-fetch error, explicit fetch network error classification, and regression coverage for abort/no-fetch/retry-exhaustion edge cases.

Todos

• Run focused client tests, typecheck, lint, and build.

Checklist

• Tests have been added for new features or major refactors to existing features.

Screenshots or videos

Not relevant for this non-UI SDK transport change.

Validation

• yarn test packages/client/test/api.test.ts — 28 passed
• yarn test packages/client/test — 19 files / 549 tests passed
• yarn workspace @knocklabs/client type:check — passed
• yarn workspace @knocklabs/client lint — passed
• yarn workspace @knocklabs/client build — passed

Linear Issue: KNO-12329

  

[changeset-bot]

🦋 Changeset detected

Latest commit: ed8b4dc

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@knocklabs/client	Patch

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[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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^{Reviewed by Cursor Bugbot for commit f88dfad. Configure here.}

[cursor]

TypeError retry too broad

Medium Severity

canRetryRequest treats every TypeError as retriable, but requestWithRetries wraps buildUrl, buildRequestInit, and fetch in the same try/catch. Invalid URLs, bad params, or non-JSON-serializable data throw TypeError before any network I/O and still get up to three extra attempts with backoff.

Additional Locations (1)

• packages/client/src/api.ts#L144-L164

 

^{Reviewed by Cursor Bugbot for commit f88dfad. Configure here.}

[codecov]

Codecov Report

❌ Patch coverage is 90.95745% with 17 lines in your changes missing coverage. Please review.
✅ Project coverage is 63.95%. Comparing base (7ef0f23) to head (ed8b4dc).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
packages/client/src/api.ts	90.95%	17 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1010      +/-   ##
==========================================
+ Coverage   63.55%   63.95%   +0.40%     
==========================================
  Files         208      208              
  Lines        9924    10082     +158     
  Branches     1280     1338      +58     
==========================================
+ Hits         6307     6448     +141     
- Misses       3592     3609      +17     
  Partials       25       25              

Files with missing lines	Coverage Δ
packages/client/src/api.ts	92.74% <90.95%> (-5.33%)	⬇️