Firestore.FieldName marked as error

[st-trade]

I my understanding, db in the extensions body, means the projects FirebaseFirestore instance. I'm not quite sure why FieldValue as in FiresbaseFirestore.FieldValue is marked as an error.

[harinij]

Hi @st-trade

db here gives you full access to all collections and documents in your entire Firestore project.

Here is an example of how you can use db in your derivative or extensions code.

const derivative: Derivative = async ({ row, db }) => {
  // Get user doc
  const userDoc = db.collection("users").doc(row.uid);
  return userDoc.get("email");
};

In case you are looking for retrieve field of the current collection's row, then you can use row.fieldname. Hope that answers your questions.

[shamsmosowi]

not sure if FieldValue is exported in db, to access fieldValue object in extensions or derivatives you can require it

  const { FieldValue } = require("firebase-admin/firestore");

while if you want you use it in webhooks which is esm only, you can import it like so

 const {FieldValue} = await import('@google-cloud/firestore');