console/packages/services/usage/README.md

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# `@hive/usage`
This service takes care of handling HTTP requests for usage reporting.
The data is written to a Kafka broker, form Kafka the data is feed into clickhouse via the
`usage-ingestor` service.
## Configuration
| Name | Required | Description | Example Value |
| ----------------------------------- | -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------- |
| `PORT` | No | The port this service is running on. | `4001` |
| `TOKENS_ENDPOINT` | **Yes** | The endpoint of the tokens service. | `http://127.0.0.1:6001` |
| `RATE_LIMIT_ENDPOINT` | No | The endpoint of the rate limiting service. | `http://127.0.0.1:4012` |
| `KAFKA_TOPIC` | **Yes** | The kafka topic. | `usage_reports_v2` |
| `KAFKA_CONSUMER_GROUP` | **Yes** | The kafka consumer group. | `usage_reports_v2` |
| `KAFKA_BROKER` | **Yes** | The address of the Kafka broker. | `127.0.0.1:29092` |
| `KAFKA_SSL` | No | Whether an SSL connection should be established to the kafka service. | `1` (enabled) or `0` (disabled) |
| `KAFKA_SSL_CA_PATH` | No | Refer to [TLS create secure context](https://nodejs.org/dist/latest-v8.x/docs/api/tls.html#tls_tls_createsecurecontext_options) for more information | `./path_to_ca` |
| `KAFKA_SSL_CERT_PATH` | No | Refer to [TLS create secure context](https://nodejs.org/dist/latest-v8.x/docs/api/tls.html#tls_tls_createsecurecontext_options) for more information | `./path_to_cert` |
| `KAFKA_SSL_KEY_PATH` | No | Refer to [TLS create secure context](https://nodejs.org/dist/latest-v8.x/docs/api/tls.html#tls_tls_createsecurecontext_options) for more information | `./path_to_key` |
| `KAFKA_SASL_MECHANISM` | No | The mechanism used for doing SASL authentication | `plain` or `scram-sha-256` or `scram-sha-512` |
| `KAFKA_SASL_USERNAME` | No | The username for the SASL authentication | `letmein` |
| `KAFKA_SASL_PASSWORD` | No | Whether an SSL connection should be established to the kafka service. | `letmein` |
| `KAFKA_BUFFER_SIZE` | No | The buffer size ??? | `12` |
| `KAFKA_BUFFER_INTERVAL` | No | The buffer interval ??? | `1` |
| `KAFKA_BUFFER_DYNAMIC` | No | The buffer interval ??? | `1` |
| `ENVIRONMENT` | No | The environment of your Hive app. (**Note:** This will be used for Sentry reporting.) | `staging` |
| `SENTRY_DSN` | No | The DSN for reporting errors to Sentry. | `https://dooobars@o557896.ingest.sentry.io/12121212` |
| `SENTRY` | No | Whether Sentry error reporting should be enabled. | `1` (enabled) or `0` (disabled) |
| `PROMETHEUS_METRICS` | No | Whether Prometheus metrics should be enabled | `1` (enabled) or `0` (disabled) |
| `PROMETHEUS_METRICS_LABEL_INSTANCE` | No | The instance label added for the prometheus metrics. | `usage-service` |
| `PROMETHEUS_METRICS_PORT` | No | Port on which prometheus metrics are exposed | Defaults to `10254` |
| `REQUEST_LOGGING` | No | Log http requests | `1` (enabled) or `0` (disabled) |
| `LOG_LEVEL` | No | The verbosity of the service logs. One of `trace`, `debug`, `info`, `warn` ,`error`, `fatal` or `silent` | `info` (default) |