手动编辑 Excel 365 并用图形读取 api 延迟

Question

I have an excel on line documents that can be edited by users in the Excel 365 web application.

I have an application that read this excel file with the graph api.

I have successfully managed to read the data from the file but when a user change the excel file and Excel says it has been saved, if I read the file immediately with my application I have old data.

I have to wait for 30s to have the updated data. Is there anything I can do to avoid this latency.

Here is my call to get the data:

var range = await _graphClient.Drives[_driveId].Items[_itemId].Workbook.Worksheets[workseetName]
            .Range(rangeAddress).UsedRange(true)
            .Request()
            .GetAsync();

Answer 1

I posted a similar question on the graph API github repo. They responded here: https://github.com/microsoftgraph/msgraph-cli/issues/215#issuecomment-1379391739

They suggest using the etag property to determine whether the workbook has changed since that last access. https://learn.microsoft.com/en-us/graph/api/resources/driveitem?view=graph-rest-1.0

They also suggest using the Excel session. https://learn.microsoft.com/en-us/graph/api/resources/excel?view=graph-rest-1.0#sessions-and-persistence

However in my personal testing the session method didn't fix the delay in excel saving the data in the backend.

They also mentioned: "I cannot guarantee that these will work. I don't think this API was designed with real-time co-authoring in mind."