{
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  "_kind": "StackProfile",
  "_file": "domain/stack-profiles/deep-stacks-7.yaml",
  "_cluster": "domain",
  "attributes": {
    "displayName": "CQRS Read Model (TypeScript, Elasticsearch, Kafka, PostgreSQL, NestJS, Docker)",
    "description": "A CQRS (Command Query Responsibility Segregation) implementation where\nthe write side persists events and aggregates in PostgreSQL through\nNestJS command handlers, while a separate read side projects denormalized\nviews into Elasticsearch for fast, flexible querying. Kafka transports\ndomain events from the write side to read-model projectors, which\nbuild optimized search indices and materialized views. TypeScript\nensures type safety across both sides of the CQRS boundary. Docker\nCompose orchestrates PostgreSQL, Kafka, Elasticsearch, and the\napplication services for local development. The tradeoff is eventual\nconsistency between write and read models and the operational burden\nof running Kafka and Elasticsearch, but the pattern unlocks independent\nscaling and optimization of reads and writes.\n",
    "composes": [
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      "framework:nestjs",
      "tool:elasticsearch",
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      "library:ioredis",
      "library:bullmq",
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      "tool:docker-compose"
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