| urls | []string | no | no | A list of URLs to connect to. If an item of the list contains commas it will be expanded into multiple URLs. |
| queue | string | yes | no | An optional queue group to consume as. Used to configure a push consumer. |
| subject | string | no | no | A subject to consume from. Supports wildcards for consuming multiple subjects. Either a subject or stream must be specified. |
| durable | string | yes | no | Preserve the state of your consumer under a durable name. Used to configure a pull consumer. |
| stream | string | yes | no | A stream to consume from. Either a subject or stream must be specified. |
| bind | bool | yes | no | Indicates that the subscription should use an existing consumer. The value defaults to false. |
| deliver | string | yes | no | Determines which messages to deliver when consuming without a durable subscriber. The value should be one of all, last, last_per_subject or new. The value defaults to all. |
| ack_wait | string | yes | no | The maximum amount of time NATS server should wait for an ack from consumer. The value defaults to 30s. |
| max_ack_pending | int | yes | no | The maximum number of outstanding acks to be allowed before consuming is halted. The value defaults to 1024. |
| auth | auth | yes | no | Optional configuration of NATS authentication parameters. |
