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GSTIN Validation Worker

This project is a Cloudflare Worker that validates and fetches details for a given GSTIN (Goods and Services Tax Identification Number) using the "knowyourgst.com" service.

Setup

  1. Install Dependencies: Run npm install to install the required dependencies.
  2. Development Server: Run npm run dev to start a development server.
  3. Deploy: Run npm run deploy to publish your worker.

Usage

To use the worker, make a GET request to the worker URL with the gstin query parameter. For example:

https://gstin-validation.devstroop.workers.dev/?gstin=29AAAAA0000A1Z5

Functions

  • isValidGSTIN(gstin): Validates the GSTIN format.
  • getCsrfToken(): Fetches the CSRF token required for making POST requests.
  • postGstinDetails(gstin, csrfToken): Posts the GSTIN details to the service and retrieves the response.
  • parseGstinDetails(responseBody): Parses the response body to extract GSTIN details.

Error Handling

The worker returns appropriate error messages and status codes for invalid GSTIN formats and failed requests.

Learn More

Learn more about Cloudflare Workers at Cloudflare Workers Documentation.