I have a simple question: How can I update a field in a firestore document when the field name is only known dynamically through a variable?
const myCounterName = "exampleName";
const docRef = admin.firestore().collection("metadata").doc("myDoc");
docRef.set({myCounterName : admin.firestore.FieldValue.increment(1)}, {merge: true});
The challenge lies in the fact that Firestore interprets the field I want to change as "myCounterName" rather than "exampleName".
To achieve this, you can utilize the square brackets notation in the following manner:
const nameOfCounter = "counterExample";
const data = {};
data[nameOfCounter] = admin.firestore.FieldValue.increment(1);
const documentReference = admin.firestore().collection("statistics").doc("myDataDoc");
documentReference.set(data, {merge: true});
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