# Syncer sources object

```json metadata
{
  "title": "Syncer sources object",
  "description": "Documents the syncer_sources object used with Redis Software REST API calls.",
  "categories": ["docs","operate","rs"],
  "tableOfContents": {"sections":[]}

,
  "codeExamples": []
}
```
| Name | Type/Value | Description |
|------|------------|-------------|
| uid | integer | Unique ID of this source |
| client_cert | string | Client certificate to use if encryption is enabled |
| client_key | string | Client key to use if encryption is enabled |
| compression | integer, <nobr>(range: 0-6)</nobr> | Compression level for the replication link |
| encryption | boolean | Encryption enabled/disabled |
| lag | integer | Lag in milliseconds between source and destination (while synced) |
| last_error | string | Last error encountered when syncing from the source |
| last_update | string | Time when we last received an update from the source |
| rdb_size | integer | The source's RDB size to be transferred during the syncing phase |
| rdb_transferred | integer | Number of bytes transferred from the source's RDB during the syncing phase |
| replication_tls_sni | string | Replication TLS server name indication |
| server_cert | string | Server certificate to use if encryption is enabled |
| status | string | Sync status of this source |
| uri | string | Source Redis URI |