How do we create unique fileCacheSubFolder?? In our case url can "DataFiles\EmpDocs\54808\ApplicationForms\teacher.docx for client A and “DataFiles\EmpDocs\54809\ApplicationForms\teacher.docx” for client B. As you have notice both file name exactly same. So it will create “teacher_docx” fileCacheSubFolder. So how can we create unique fileCacheSubFolder for each file which has different location?
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You can use any path for the fileCacheSubFolder variable, so let’s take this two lines of code
var fileFolderName = Path.GetFileName(documentGuid).Replace(".", "_");
string fileCacheSubFolder = Path.Combine(cachePath, fileFolderName);
The first line is responsible for creating unique relative folder path e.g. teacher_docx for a file and the second one is responsible for combining base cache path with relative cache path e.g. .\cache\teacher_docx. You can build unique cache folder path by adding username or user ID e.g. .\cache\{userID or username}\teacher_docx. The final code will be something like this
var userId = GetUserId();
var fileFolderName = Path.GetFileName(documentGuid).Replace(".", "_");
string fileCacheSubFolder = Path.Combine(cachePath, userId, fileFolderName);
At this point, we know how to create a unique folder path per user and file but we don’t have a user. How do you plan to authenticate users in your app?