Document and File Type Handling

In this quick tutorial, we will cover “Document and File Type Handling”. The Catenis system is exceptionally flexible, and can handle logging and sending or messaging data of any size or type. Catenis was designed with powerful data-agnostic capabilities. A common use case of blockchain technology is to log or send files with their respective mime types, such as word documents, PDF documents, mp4 movies, or mp3 music.

Catenis accepts and transmits everything via a byte stream making it extremely powerful. Continue watching this video to fully understand how handling files work.

In this video we will cover:

• Concepts of how Catenis handles files
• What the helper Catenis-file module is, and why it’s used
• Installing and configuring the Catenis-file module on Node-RED
• Importing and deploying a file-handling flow
• How to log a file to the Bitcoin Blockchain via Catenis Flow
• How to read the files you stored to the Bitcoin Blockchain using Catenis Flow

Prerequisite

• A Free Catenis Development account or Production account
• Node-RED installed on either a local or cloud environment
• Catenis Flow Pallet installed on Node-RED
• A Catenis Virtual Device configured on Node-RED
• Basic understanding of how to use Node-RED
• Basic understanding of Bitcoin Blockchain concepts

Thank you for watching Document and File Type Handling in the Catenis Flow tutorial series. Watch the next video, Understanding the Log Message Node, to further expand your knowledge.

Links from this video for easy access:

• How to Import a Node-RED Flow: https://blockchainofthings.com/tutorials/import-a-node-red-flow
• Installing Catenis Flow on Node-RED: https://blockchainofthings.com/tutorials/install-catenis-flow-node-red
• How to Configure a Virtual Device: https://blockchainofthings.com/tutorials/configure-virtual-device
• Where to find the Catenis-file module: https://flows.nodered.org/flow/c2ba3a3bf0c8585afc8ce4e546efbf94
• Browser link to upload file: http://localhost:1880/bcfileupload
• Browser link to download files: http://localhost:1880/bcfiledownload/:{messageID}
• Understanding the Log Message Node: https://blockchainofthings.com/tutorials/understand-log-message-node

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