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GetAPI.ONE

Migrate an OpenAI SDK integration to GetAPI.ONE

Inventory the existing request contract, change credentials and base URL behind configuration, map an exact ONE catalog model, canary both paths, and retain rollback.

Inventory before changing traffic

  • Record the current SDK version, endpoint family, model ID, request fields, streaming behavior, timeouts, retries, and output parser.
  • Prepare a separate bounded ONE key and choose an exact current catalog model with the same declared endpoint family.
  • Define canary success metrics and a configuration-only rollback.
text
Keep unchanged: request semantics → validation → output parsing
Change by configuration: API key + base URL + verified model mapping

Make the smallest reversible change

  1. Move the provider URL, key, and model mapping into environment-specific configuration.
  2. Set Python base_url or Node.js baseURL to https://www.getapi.one/v1 and use GETAPI_ONE_API_KEY.
  3. Keep the existing endpoint family. Remove only genuinely optional, unnecessary fields; if a required behavior is unsupported, stop the migration and choose a compatible model or path.
  4. Run both paths during a controlled canary with the same approved fixtures.
  5. Increase traffic only after quality, errors, latency, and observed cost meet the acceptance criteria.
python
client = OpenAI(
    api_key=os.environ["GETAPI_ONE_API_KEY"],
    base_url="https://www.getapi.one/v1",
    timeout=30.0,
    max_retries=0,
)
javascript
const client = new OpenAI({
  apiKey: process.env.GETAPI_ONE_API_KEY,
  baseURL: 'https://www.getapi.one/v1',
  timeout: 30_000,
  maxRetries: 0,
});

Review the compatibility matrix

ContractMigration check
EndpointResponses stays Responses; Chat Completions stays Chat Completions unless separately redesigned.
ModelMap to an exact current catalog ID with the declared endpoint.
ParametersVerify every required behavior and optional field; do not assume a drop-in replacement for every parameter.
StreamingVerify event names, terminal outcomes, disconnect handling, and proxy behavior.
Errors and retriesPreserve request IDs and avoid retries that duplicate side effects.

Verify the canary

  • Approved fixtures produce parseable outputs that meet the same task acceptance criteria.
  • Authentication, endpoint, rate, timeout, and model errors are observable separately.
  • Observed usage and live pricing fit the migration budget before traffic increases.
  • Switching the provider configuration back restores the previous path.

Diagnose migration regressions

  • 401: confirm the ONE key is used only with the ONE base URL and is enabled.
  • 404: check duplicate /v1 and whether the SDK method matches the selected model endpoint.
  • Parser failure: capture a redacted response, compare the documented shape, and roll back instead of silently accepting malformed data.

Keep the migration isolated

  • Never reuse the old provider credential as the ONE credential or expose either key to clients.
  • Use redacted production-like fixtures and bound canary traffic and spend.
  • Log provider choice, model mapping, safe request ID, and outcome without prompt secrets.

Next steps