| Error Code | Description |
|---|---|
| OK | Not an error; returned on success |
| CANCELLED | The operation was cancelled, typically by the caller |
| UNKNOWN | Unknown error. Error which cannot be assigned to a specific code |
| INVALID_ARGUMENT | The client specified an invalid argument |
| DEADLINE_EXCEEDED | The deadline expired before the operation could complete |
| NOT_FOUND | Some requested entity (e.g., file or directory) was not found |
| ALREADY_EXISTS | The entity to create (e.g., file or directory) already exists |
| PERMISSION_DENIED | The caller does not have permission to execute the specified operation |
| RESOURCE_EXHAUSTED | Some resource has been exhausted |
| FAILED_PRECONDITION | The operation was rejected because the system is not in a state required for the operation's execution |
| ABORTED | The operation was aborted, typically due to a concurrency issue |
| OUT_OF_RANGE | The operation was attempted past the valid range |
| UNIMPLEMENTED | The operation is not implemented or is not supported/enabled in this service |
| INTERNAL | Internal errors. This means that some invariants expected by the underlying system have been broken |
| UNAVAILABLE | The service is currently unavailable |
| DATA_LOSS | Unrecoverable data loss or corruption |
| UNAUTHENTICATED | The request does not have valid authentication credentials for the operation |
| INVALID_DATAPOINT_ID | The Data-API call contains invalid datapoint ID |
| INVALID_SUBSCRIPTION_ID | The Data-API call contains invalid subscription ID |
| PAYLOAD_SERIALISATION_ISSUE | Something goes wrong in serialisation of payload |
| PAYLOAD_DESERIALISATION_ISSUE | Something goes wrong in deserialisation of payload |
| BUSY | Processing of the request not finished yet. Still busy in working on the request |