#305 · Developer Tool

API Error Catalog Builder

Normalizes API error definitions into a consistent Markdown catalog with duplicate and status checks. Paste a representative sample, run the parser, and inspect both the copy-ready result and the supporting counts. Nothing is uploaded. Validation errors stay tied to the supplied text, so malformed input can be corrected before the result is reused in documentation, tests, or a client implementation.

Developer Input

Error definitions
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How to use this developer tool

  1. Paste error definitions or load the built-in sample.
  2. Check the expected syntax and remove credentials that should not appear in output.
  3. Select Build Error Catalog or press Ctrl/Cmd + Enter.
  4. Review the summary, counts, and interpretation before copying or downloading.

What this developer tool does

Normalizes API error definitions into a consistent Markdown catalog with duplicate and status checks.

The parser validates the outer syntax first, then applies format-specific extraction and builds a deterministic result from the supplied text.

The output is intended as a working artifact, not proof that a remote endpoint or signature is valid.

Example

Load the sample to see a realistic error definitions. The generated result includes errorcount and statuscount, matching the values shown in the output panel.

VALIDATION_FAILED | 422 | One or more fields are invalid
NOT_FOUND | 404 | The requested resource was not found
RATE_LIMITED | 429 | Too many requests

Use cases

  • Prepare API documentation during a code review.
  • Inspect an unfamiliar integration payload before writing client code.
  • Create a checked, copy-ready artifact for tests or issue reports.
  • Compare exported configuration with the behavior expected by a team.

Tips for reliable output

  • Use a representative sample rather than a heavily shortened fragment.
  • Remove live tokens, secrets, and personal data before pasting.
  • Keep original field names and letter case.
  • Read the interpretation message before using downloaded output.
  • Test unusual null, array, and Unicode values when the format supports them.

Processing details

All parsing and generation runs locally with standard browser JavaScript. The implementation uses explicit syntax checks and produces stable text for the same input.

Free-form lines must use pipe separators. The catalog cannot infer undocumented remediation steps.

Frequently asked questions

What input does the API Error Catalog Builder accept?

Paste the raw format shown in the sample. The parser reports malformed JSON or missing required fields instead of guessing.

Does the API Error Catalog Builder send data to an API?

No. Processing runs in the browser and the core function makes no network request.

Can I use the generated output in documentation?

Yes. Copy or download the result, then review placeholders and project-specific details before committing it.

How does it handle invalid input?

It stops with a specific validation message and leaves no partial result in the output panel.

What are the main limitations of this parser?

Free-form lines must use pipe separators. The catalog cannot infer undocumented remediation steps.

Output reference

ItemMeaning
SummaryHigh-level processing outcome
MetricsErrorCount and StatusCount
Download.md copy of the visible output

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