String Variable inside Single Quotes in Another String Variable Not Expanding - VBA - vba

Question

I'm trying to build quite a complicated URL String in VBA and I'm having troule escaping everything correctly. I managed to get the URL to work, but now I'm trying to "variablize" the importart parts and can't understand the issue (VBA doesn't exactly give detailed errors either).
Here is a working and non-working example URL:
Dim URL As STring, Client As String
Client = "AClientName"
URL = "http://URL?filter={'mode':'cli','client':'AClientName'}" ' This Works
URL = "http://URL?filter={'mode':'cli','client':' & CLIENT & '}" ' This Fails to Open

Answer 1

You're just missing the a close and open quote around the variable.
If you debug.print, you can see that it's interpreting your & and Client as just another part of the string instead of concatenating it as a variable.
In:
Debug.Print "http://URL?filter={'mode':'cli','client':'AClientName'}"
Out:
http://URL?filter={'mode':'cli','client':'AClientName'}
This works because there's no escaping the string or concatenation needed.
You can see here that & CLIENT & are part of the string.
In:
Debug.Print "http://URL?filter={'mode':'cli','client':' & CLIENT & '}"
Out:
http://URL?filter={'mode':'cli','client':' & CLIENT & '}
To get the proper string with the variable use this.
In:
Debug.Print "http://URL?filter={'mode':'cli','client':'" & Client & "'}"
Out:
http://URL?filter={'mode':'cli','client':'AClientName'}