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Preventing Telegram Webhook Retries and Spoofed Requests in Laravel with Queued Jobs

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A technical guide explains that Laravel-based Telegram bots can fail when webhook handlers run long operations inline, since Telegram treats timeouts as errors and retries the same update repeatedly. This can cause duplicate orders or payment prompts if processing is not idempotent. The article also warns that an unauthenticated webhook endpoint lets attackers send forged payloads. To counter this, it recommends validating Telegram's secret token header with hash_equals() in custom middleware, which returns a 403 for invalid requests. It further advises returning an immediate HTTP 200 and delegating processing to a queued job guarded by atomic idempotency checks.

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