Unable to list and return status of Instance long running operaions

[nielm]

Environment details

• OS: All
• Node.js version: v20.11.1
• npm version: 10.2.4
• @google-cloud/spanner version: 7.5.0

Steps to reproduce

• Start a long running Instance operation externally to Node.JS, for example changing size of an instance.
• Retrieve the Operation ID (projects/xxx/instances/yyy/operations/zzz) of this LRO
• Attempt to use the Node.JS Cloud Spanner Client Library to retrieve the status of this operation using only the Operation ID.

This is not possible - There is no public interface to list or get LROs on the instance object (by contrast there is an interfacev to get the InstanceConfigOperations

• https://googleapis.dev/nodejs/spanner/latest/Instance.html
• https://googleapis.dev/nodejs/spanner/latest/v1.InstanceAdminClient.html

This is only possible using the REST API:

• https://cloud.google.com/spanner/docs/manage-and-observe-long-running-operations for how to get the status using REST API.
• https://cloud.google.com/spanner/docs/reference/rest/v1/projects.instances.operations REST operations