Envío automático de archivos grandes con TransferNow

• •Pueden requerirse credenciales de autenticación para la API de destino

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        "content": "## STEP 1\nCreate a FREE account on [TransferNow](https://developers.transfernow.net/). FREE TRIAL 14 DAYS\n\nSet Header Auth in 'HTTP Nodes':\n- NAME: x-api-key\n- VALUE: YOUR_API_KEY"
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        "content": "#  Automated Send a Large File with TransferNow\nThis workflow creates a user-friendly web form to upload a file, which allows users to upload a **single large file** (*up to 5Gb*) through a custom web form and automatically send it via **TransferNow**, handling the complex multi-part upload process required for **large files**."
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        "content": "## Size\nCalculate the exact size of the file and put it into an array that will be sent to Transfernow"
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        "content": "## Upload\nUpload the file to the TransferNow server and create the transfer"
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        "content": "## Transfer\nCreate file transfer"
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        "content": "## Download\nProvides the URL for downloading the file"
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