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Go Kafka Example

What this is?

Apache Kafka with GO - this is one of the best ways to use Kafka with GO - using Sarama by IBM. This library is very stable, provides a lot of functionality and can 100% be used in production (unlike other kafka libraries for GO).

It's a simple system to add a message through REST API then produce it in Apache Kafka and process it in consumer/worker. It can be any time-taking process like saving it data store and performing aggregation or some computation.

Setup

  1. Install Docker and Docker Compose

  2. Run docker-compose up -d in the root directory. This will start Apache Kafka and Zookeeper

  3. Install dependencies

  4. Run go run producer/producer.go to start the producer which is a REST API listening on port 3000

  5. Run go run worker/worker.go to start the consumer

Test it out!

Send a POST request to localhost:3000

This will produce a message in Apache Kafka and the consumer will process it.

curl --location --request POST '0.0.0.0:3000/api/v1/comments' \
--header 'Content-Type: application/json' \
--data-raw '{ "text":"message 1" }'

curl --location --request POST '0.0.0.0:3000/api/v1/comments' \
--header 'Content-Type: application/json' \
--data-raw '{ "text":"message 2" }'