This is part 1 of 2 articles to unit test Kafka Streams application. The first part talks about testing DSL transformation, stateless and stateful, including joining and windowing.
How to Unit Test Kafka Streams Application – PART 1 (DSL)
Category: How-to
Filtering Nested Array Objects in Elasticsearch Document with Painless Scripting
Painless is a simple, secure scripting language designed specifically for use with Elasticsearch. It is the default scripting language for Elasticsearch and can safely be used for inline and stored scripts.
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How to Join One-to-Many and Many-to-One Relationship with Kafka Streams
Yet another Kafka feature, which is Kafka Streams, allow us to join two streams into one single stream. Kafka streams provide one-to-many and many-to-one join types.
How to Encrypt and Decrypt Kafka Message using Custom (De)Serializers
Sensitive data always need to be handled with extra careful. Thus, in some cases, we need to encrypt before delivering message to Kafka topic.
How to Publish Subscribe to Kafka with Spring and SASL/SCRAM
After we secure Kafka Broker and Zookeeper with SASL/SCRAM, it is time for client (Java + Spring) to connect to secured Kafka.
How to Secure Confluent Kafka with SSL and SASL/SCRAM
Overview When I decided to include Apache Kafka as one of our technology stack, I never imagine the demand would be this huge. At first, my requirements were only two things. Something faster than ActiveMQ […]
How to Search Elasticsearch (ES) Index from ExpressJS
How to Isolate Database Credentials in Spring Boot Using Vault
Data privacy and security became critical nowadays. Thus, we need to isolate database credentials and make it transparent to our applications/services.
How to Secure Ansible Playbook Credentials using Hashicorp Vault
Isolate any target host’s credentials (hostname, user, password) from Ansible Playbook. And let the playbook retrieve those information from secret management tools (Hashicorp Vault) during targets provisioning.
How to Secure REST Endpoint Using Spring Boot and OAuth2
Overview In this article, I will provide a simple example to secure REST example by using Oauth2. I will not explain what Oauth2 protocol is all about in detail. In short, to implement this authorization […]