Un bot Telegram privato in Python con long polling e codice di abbinamento

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Un bot Telegram pubblico può essere contattato da chiunque, quindi serve un modo per riconoscere solo il proprietario. Il tutorial mostra come usare il long polling con getUpdates, che non richiede URL pubblici né tunnel, in circa 70 righe di Python con la sola libreria standard. L'autore spiega che il timeout HTTP deve superare l'attesa del long poll, altrimenti ogni ciclo tranquillo sembra un'interruzione. Il proprietario si autentica con un codice monouso generato con secrets, valido 10 minuti e cancellato dopo l'uso. Il sistema salva l'ID numerico del mittente invece dello username, perché quest'ultimo può essere cambiato o riassegnato.

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