How to transmit golang data

In this era of "Internet of Everything", data transmission between different applications has become more and more important. How to transmit data efficiently and safely has become an inevitable problem for developers. Among these problems, one language is widely used, and that is Golang.
Golang has received more and more attention due to its efficient and stable characteristics. In data transmission, Golang's speed and efficiency are also displayed. This article will introduce in detail how Golang transmits data.

1. How Golang transmits data

1. Original TCP socket (socket)
   Golang supports the use of original TCP sockets for data transmission, but this This method requires developers to design and implement the protocol themselves. Since the TCP protocol is a highly reliable protocol, using TCP sockets is very stable in terms of reliability, but its development is more difficult than other methods.
2. Using HTTP protocol to realize data transmission
   Golang, as a development language for web applications, naturally supports HTTP protocol, so the data of Golang application can be transmitted through HTTP protocol. Compared with TCP sockets, the advantage of using the HTTP protocol is that you can use HTTP libraries developed in other languages ​​to interact. At the same time, the routing processing method is relatively simple, and the threshold for development is much lowered.
3. WebSocket method
   WebSocket is a protocol based on the TCP protocol that implements full-duplex communication, so it can realize the interaction of transmitting multiple data in one connection. Golang can also easily implement the data transmission function of WebSocket by using the gorilla/websocket library.
4. Use RPC (Remote Procedure Call) protocol
   RPC protocol is a communication protocol used in distributed systems, which allows various nodes in the distributed system to call each other like local procedures. processes on other nodes. Golang can also implement remote procedure calls by using Go's own RPC library, making data transmission between different nodes easier.

2. Golang’s tool for transmitting data

1. net package
   The net package that comes with Golang is a basic network library that contains a series of variables and functions. For creating various types of network connections, etc. This library provides basic network support for Golang's network transmission, such as supporting UDP, TCP and other network types.
2. github.com/spf13/cobra
   This library can be used to help developers build command line tools, which can be used to add flags to application parameters, generate help, etc. In some cases, when you need to receive parameters and data from the command line, you can use this library to transmit data.
3. github.com/pkg/errors
   This library is to provide better error handling. When data transmission is to be performed, if an unexpected situation occurs, it can not only easily locate the error, but also It is also more conducive to the accurate transmission of data.

3. Best Practices for Golang Data Transmission

1. Data Compression Transmission
   In order to improve the speed of data transmission, we can use data compression technology, in Golang The zlib library is used to compress data and then transmit it, which can greatly improve the efficiency of data transmission.
2. Data encryption transmission
   In data transmission, in order to ensure the security of the data, the data can be encrypted. In Golang, the encryption library crypto can be used to encrypt the data, and encryption methods such as AES can be used. Improve the security of data transmission.
3. Caching
   When transmitting data, using cache can reduce the number of network IOs and improve the efficiency of data transmission. Golang can use the in-memory database Memcached for caching.

4. Summary

In data transmission, Golang has good performance and excellent operating efficiency. It also provides a variety of data transmission methods. Developers can use Choose different transmission methods according to business needs. In the practical process, the integration and application of encryption, compression, and caching technologies are the most difficult points worthy of consideration. Developers need to understand and practice in depth based on specific business conditions.

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