# Comment Service

## Event Documentation

* Events Produced:
  * **Topic:** "``comment``" | **Schema:** "``CommentEvent``" protobuf
    * Type: ``"created"`` | Data: ``Comment``
    * Type: ``"updated"`` | Data: ``Comment``
    * Type: ``"deleted"`` | Data: ``Comment``

* Events Consumed:
  * **Topic:** "``post``" | **Schema:** "``PostEvent``" protobuf
    * Type: ``"deleted"`` | Data: ``Post`` (only with ``Post.id`` attribute)
  * **Topic:** "``user``" | **Schema:** "``UserEvent``" protobuf
    * Type: ``"deleted"`` | Data: ``User``

## Configuration

### Environment Variables

**PostgreSQL:**

``POSTGRES_USER`` (Required)

* e.g. "postgres"

``POSTGRES_PASS`` (Required)

* e.g. "postgres"

``POSTGRES_HOST`` (Required)

* e.g. "localhost:5432"

``POSTGRES_DATABASE`` (Required)

* e.g. "postgres"

---

**Redis:**

``REDIS_HOST`` (Required)

* e.g. "localhost:6379"

``REDIS_PASS`` (Required)

* e.g. "redis"

---

**Kafka:**

``KAFKA_BROKERS`` (Required)

* e.g. "localhost:9092" or "localhost:9092,localhost:9093"