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How To Build A Complete Distributed File Storage In Golang

Anthony GG2024-04-12
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💫 Short Summary

The video segments focus on building a decentralized and fully distributed content addressable file storage system from scratch using Go. Topics covered include organizing public and private functions in code, implementing TCP transport functions, peer-to-peer communication, file handling, encryption, server operations, message encoding, and troubleshooting. Encryption, file distribution, and network connections are emphasized for secure data storage and efficient file sharing. The importance of testing, debugging, and optimizing code performance is highlighted throughout the video, with an invitation for collaboration and feedback on the discussed implementations.

✨ Highlights
📊 Transcript
Building a decentralized and fully distributed content addressable file storage system in Go.
21:55
Importance of organizing public and private functions in code for better efficiency.
Implementation of TCP transport with functions for listening and accepting connections.
Testing strategies, error handling, and design considerations for handling various types of transports like UDP and web circuits.
Implementation of handshake function in TCP transport scenario.
44:55
Focus on encoding, decoding, error handling, and message reading in the handshake process.
Discuss design decisions like error handling, connection setup, and handling handshake failures.
Explanation of dropping connections in case of errors and utilizing handshake function for successful communication.
Coding examples and insights shared on the development process.
Implementing a peer-to-peer package and creating a custom decoder for message encoding.
01:20:53
Setting up TCP transport options is crucial for efficient communication.
Creating a handshake function is necessary for establishing connections between peers.
Handling message payloads is essential for transmitting data accurately.
Defining a consume function to return a channel of RPC messages helps manage message flow.
Coding details related to reading incoming messages from peers in a network.
01:27:36
Implementation of a TCP channel, addressing errors with peer interfaces, and handling network connections.
Coding functions for closing connections and error handling.
Setting up a content addressable storage system and hashing file names for storage.
File operations, copying data, and creating file names based on key transformations.
Overview of coding practices for file handling and encryption.
02:18:36
Creating folders and hashing file contents are important aspects discussed.
Transforming keys and file names, along with working with file streams and encryption, are highlighted.
Code snippets demonstrate functions for reading, closing files, and handling buffers.
Considerations for error handling, utilizing defer statements, and different approaches to file stream operations are covered in the segment.
Implementing functions for file storage.
02:55:22
Creating root directories and managing file paths is essential for effective file storage.
Structuring file storage functions helps maintain separation of concerns and ensures clean code.
Functions are created to generate root paths, file names, and full paths based on keys.
Testing file storage operations and handling errors in file operations is crucial for successful implementation.
The importance of coding processes such as testing, debugging, and implementing functions to improve efficiency.
03:21:58
Modifying functions to streamline code execution by deleting keys and optimizing file storage structures.
Creating server structures, encrypting data, and effectively handling errors.
Emphasis on thorough testing and potential improvements in code organization to enhance overall performance.
Implementation of a file server with operations like 'stop' and 'close' to manage connections and cleanup.
03:51:45
The speaker explores handling errors, closing connections, and managing listener functions in the TCP transport interface.
Importance of having a list of boot nodes to connect with peers for exchanging messages and gossiping.
Future plans include connecting to predefined boot nodes, broadcasting files, implementing encryption, and enhancing functionality.
Implementation of file server and TCP transport operations.
04:18:53
Explanation of creating a file server, connecting servers, and implementing peer-to-peer communication.
Detailed discussion on setting up server functions, handling network connections, and designing peer interfaces for different transports like TCP and UDP.
Emphasis on connecting servers and managing bootstrap nodes.
Invitation for collaboration and feedback on the discussed implementations.
Implementing a broadcasting function in Go for streaming files to peers.
04:45:38
Discussion on interfaces, embedding interfaces, and implementing reader/writer interfaces in Go.
Creation of a multiwriter to broadcast data to multiple peers and encoding payloads for streaming.
Handling connections, encoding data, and utilizing a slice of peers for streaming in Go.
Emphasis on privacy and encryption in data transmission while showcasing advanced Go programming techniques.
Overview of reading from a buffer, sending data over the network, and creating a payload.
04:51:15
Demonstrating the creation of a buffer and using IO copy for streaming data.
Details on handling messages, encoding data, and using buffers for writing and reading.
Importance of understanding these concepts for advanced development work and challenges of working with large files.
Future plans to cover more advanced topics and the significance of mastering these concepts.
Testing and refining a payload message for streaming.
05:18:13
Creating a simple payload and sending bytes to mimic a large file transfer.
Exploring issues with reading and decoding messages, emphasizing the need for proper communication between routines.
Covering topics like message types, storing files based on keys, and troubleshooting blocks in the encoding process.
Identifying the importance of registering message types for proper encoding and highlighting the process of sending and receiving messages between peers for streaming purposes.
Highlights of Coding and Message Handling Segment:
06:03:22
The segment covers encoding and sending messages, handling different message types, storing files, and resolving code issues related to file sizes and data transmission.
The speaker showcases coding and debugging techniques, with a focus on implementing message handling and file storage functionalities.
Emphasis is placed on accurately defining file sizes and optimizing code structure for efficient data transmission.
Implementing functionality for sending one-off messages without logging the stream.
06:17:35
Retrieving and storing files, encryption, and testing are key components.
Importance of having key principles in place for project success.
Distributing files between connected nodes for safe storage and retrieval.
Knowing decentralized storage concepts for building projects in different programming languages.
Troubleshooting streaming data over a network.
07:03:20
Exploring coding methods and sleep intervals to optimize data transmission.
Emphasizing the importance of effective handling of streaming in the library code and clear communication between server and client.
Testing various configurations to enhance performance and identifying areas for improvement.
Covering debugging steps and ensuring proper handling of incoming stream messages.
Handling streaming data and file transfers over a network.
07:30:25
The speaker demonstrates coding steps for sending and receiving data between peers, managing file storage, and handling network connections.
Troubleshooting scenarios include addressing errors in code logic and ensuring proper data transfer.
Importance of pre-planning and problem-solving while coding to avoid potential issues is emphasized.
The segment concludes with discussions on file size limitations and the need for accurate file size information for efficient data transfer.
Implementation of encryption in a streaming application.
08:01:42
Importance of encrypting files stored on disk using AES encryption with a cipher block and an IV.
Process involves creating a new cipher with a key, handling errors, generating a random IV with IO read full, and filling the IV with random bytes.
Emphasis on the need for encryption to protect sensitive data.
Mention of potential for further development and enhancement of the application.
Process of copying and encrypting data.
08:25:52
Creating a buffer, generating encryption keys, and writing encrypted data to a destination file.
Highlighting the importance of the IV for decryption and considering file sizes when encrypting data.
Testing the encryption process to ensure the encrypted file size includes the IV size.
Setting up encryption keys and running tests to verify the encryption and decryption processes.
Troubleshooting file encryption and distribution.
09:01:41
The segment covers decrypting files, handling encryption keys, and optimizing file distribution among servers.
Peer-to-peer protocols and peer discovery are discussed for connecting multiple servers.
Testing server connections and file distribution using different ports is demonstrated.
The segment explores optimizations and challenges in establishing connections between servers for efficient file sharing.
Setting up network connections and troubleshooting network booting issues.
09:06:54
Using functions and commands to establish connections and identify problems like devices not booting up.
Implementing security measures such as hashing keys and generating IDs to enhance data storage security.
Preventing unauthorized access by implementing security measures.
Implementing 'delete' functionality in a decentralized file storage system.
09:56:39
The speaker proposes adding a feature to delete files locally and notify connected peers for deletion, enhancing the system's usability.
The task of implementing this functionality is straightforward and valuable for users.
The audience is urged to try out the feature and receive feedback on their implementation.
The speaker appreciates the community's support and invites further interaction through Discord, videos, or live streams.