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How does Go support integration with other technologies and systems, and what are the best practices for integration in Go programs?

Go has excellent support for integration with other technologies and systems, including support for various data formats and protocols such as JSON, XML, and HTTP. In addition, Go provides interfaces for integrating with databases, message queues, and other systems. 

Here are some of the ways Go supports integration:

RESTful APIs: Go makes it easy to create RESTful APIs with the help of the **net/http** package. This package provides built-in support for handling HTTP requests and responses, which makes it easy to build HTTP-based APIs.

Database Integration: Go provides support for a variety of databases, including SQL and NoSQL databases. The **database/sql** package provides an abstract database API that makes it easy to work with different databases using a common interface.

Messaging: Go supports messaging systems such as RabbitMQ, NATS, and Apache Kafka through various third-party packages. These packages provide easy-to-use APIs for interacting with messaging systems.

gRPC: Go also supports gRPC, a high-performance RPC framework. gRPC is a language-agnostic framework that allows services to communicate with each other easily and efficiently.

WebSockets: Go has built-in support for WebSockets, which allows for real-time communication between the client and server. The **net/http** package provides an API for handling WebSockets.

Cgo: Go also provides support for interacting with C libraries through Cgo. Cgo allows Go code to call C functions and use C data structures, which is useful when integrating with legacy C code.

Best practices for integration in Go programs include using standard libraries and third-party packages whenever possible, properly handling errors and failures, and designing systems with loose coupling in mind to facilitate maintainability and flexibility. Additionally, it's important to thoroughly test integration points and have well-defined contracts between different components to ensure interoperability.

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