Firestore REST API GET

[Lethargic]

I’m trying to connect my database from Firestore to appgyver.
Everything works fine when the security rules for the document I’m getting is…

For this rule I’d have the header " Authorization" and passing along "Bearer " + appVars.idToken like so…

But then when I want to add this security rule which means to allow read if the user uid = the document which has a field with the same user uid…

I get this error…

Is there some sort of header I need to be passing for this? I’ve been reading the firestore documents but not seen anything yet

[Lethargic]

Update:
This works: changing security rules to if uid matches document id allow read

I’ve created the database to match and passed Authorization "Bearer " + appVars.idToken with the URL placeholder set to uid :
projects/myProjectName/databases/(default)/documents/toDoListToday/FP1kgLB0rO2drUa4QamF/{uid}