I want to retrieve data of only a single document via its ID. My approach with example data of:
TESTID1 { \'name\': \'example\',
This is simple you can use a DOCUMENT SNAPSHOT
DocumentSnapshot variable = await Firestore.instance.collection('COLLECTION NAME').document('DOCUMENT ID').get();
You can access its data using variable.data['FEILD_NAME']
variable.data['FEILD_NAME']