How to use Apache Kafka in GO using Echo framework?

To set up Kafka in a Go application using the Echo web framework, you would first need to install the sarama package, which provides a Go client for Apache Kafka. You can do this using the go get command:

go get github.com/Shopify/sarama

Once the sarama package is installed, you can use it to connect to Kafka and publish and consume messages. Here is an example of how to set up a Kafka producer in a Go application using the Echo framework and the sarama package:

package main

import (
    "fmt"
    "time"

    "github.com/Shopify/sarama"
    "github.com/labstack/echo"
)

var (
    kafkaBrokers = []string{"localhost:9092"}
)

func main() {
    // Create a new Echo web server
    e := echo.New()

    // Set up a route to handle HTTP POST requests to the /messages endpoint
    e.POST("/messages", func(c echo.Context) error {
        // Read the message body from the request
        message := c.FormValue("message")

        // Create a new Kafka producer
        producer, err := sarama.NewSyncProducer(kafkaBrokers, nil)
        if err != nil {
            return err
        }
        defer producer.Close()

        // Publish the message to the "messages" topic
        msg := &sarama.ProducerMessage{
            Topic: "messages",
            Value: sarama.StringEncoder(message),
        }
        partition, offset, err := producer.SendMessage(msg)
        if err != nil {
            return err
        }

        // Return a response to the client
        return c.String(http.StatusOK, fmt.Sprintf("Message published to partition %d at offset %d", partition, offset))
    })

    // Start the Echo web server
    e.Start(":8080")
}

This Go application uses the Echo framework to handle HTTP POST requests to the /messages endpoint. When a request is received, the application reads the message body from the request and uses the sarama package to publish the message to the "messages" topic in Kafka.

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