Defining Data Integrity for Telegram Validation: A Schema-First Approach

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Defining Data Integrity for Telegram Validation: A Schema-First Approach

When integrating Telegram registration checks into a CRM or automated backend, the stability of your data pipeline depends on how you handle the request/response contract. Because Telegram registration status is a dynamic signal, your implementation must distinguish between successful validations and business-level exceptions without relying on undocumented fields.

The Request Contract

All requests to the TG Validator API are synchronous. To ensure your integration remains predictable, follow these implementation requirements:

• Format: All phone numbers must be submitted in E.164 format (e.g., +14155552671).
• Endpoint: Use the POST /api/v1/check endpoint.
• Headers: Include your X-API-Key in the request header.
• Payload: Send a JSON body containing service_type set to tg and the identifier containing your E.164 formatted number.

Note that the API has rate limits that restrict requests per minute and that concurrency is also limited. Please refer to the current API documentation for applicable limits.

Handling the Response Envelope

The API returns a consistent JSON envelope containing code, msg, and data. Your integration logic should be structured to handle this envelope as follows:

1. Business Logic Separation: Check the code field first. A non-zero business code indicates that the check could not be completed. Do not treat these as "false" registration results.
2. Registration Status: When the check is successful, the data.registered field provides a boolean value indicating the account presence at the time of the check.
3. Schema Validation: Implement strict schema validation to ensure your storage layer only accepts the boolean registered value from the data object.

Implementation Checklist

Use this checklist to ensure your integration maintains data integrity:

• E.164 Normalization: Ensure all input numbers are sanitized and formatted to E.164 before transmission.
• Envelope Parsing: Verify that your parser extracts the code field before attempting to read data.registered.
• Error Handling: Implement logic to catch non-zero business codes. Ensure these scenarios do not overwrite existing CRM data with a false "not registered" status.
• Synchronous Flow: Since the API is synchronous, ensure your application handles the HTTP response in the same thread or process to prevent state mismatch.
• Result Scoping: Treat the registered boolean strictly as an account-presence signal. Do not map this result to concepts of identity, consent, or reachability in your downstream database.
• Rate Limit Readiness: Implement a retry policy that respects the API's rate and concurrency limits. Consult the documentation for current limits to configure your backoff strategy.

Final Takeaway

By treating the code/msg/data envelope as the source of truth and strictly separating business-level error codes from the registered boolean, you can build a resilient integration that accurately reflects Telegram account presence. Always validate against the official documentation to stay aligned with the latest schema definitions.