Table of contents LangStream Documentation ❤ Langstream.ai ⭐ LangStream GitHub Repo 📜 Changelog about What is LangStream? License Get Started installation LangStream CLI Docker Minikube (mini-langstream) Kubernetes Build and install from source Building Applications Vector Databases Application structure Pipelines Instances Configuration Topics Assets Secrets YAML templating Error Handling Stateful agents .langstreamignore Sample App Develop, test and deploy Application Lifecycle Expression Language API Gateways Websocket HTTP Message filtering Gateway authentication API Reference Agents Resources Assets LangStream CLI CLI Commands CLI Configuration Web interface Integrations Large Language Models (LLMs) OpenAI Hugging Face Google Vertex AI Amazon Bedrock Ollama Data storage Astra Vector DB Astra Cassandra Pinecone Milvus Solr JDBC OpenSearch Integrations Apache Kafka Connect Apache Camel LangServe Pipeline Agents Agent Messaging Builtin agents Input & Output webcrawler-source s3-source azure-blob-storage-source sink vector-db-sink camel-source AI Agents ai-chat-completions ai-text-completions compute-ai-embeddings flare-controller Text Processors document-to-json language-detector query query-vector-db re-rank text-normaliser text-extractor text-splitter http-request Data Transform cast compute drop drop-fields merge-key-value unwrap-key-value Flow control dispatch timer-source trigger-event Custom Agents Python sink Python source Python processor Python service Agent Developer Guide Agent Types Agent Creation Configuration and Testing Environment variables Messaging Messaging Apache Pulsar Apache Kafka Pravega.io Patterns RAG pattern FLARE pattern Examples LangServe chatbot LlamaIndex Cassandra sink