In TypeScript, when utilizing CloudFunction, one way to pass admin.firestore.FieldValue.serverTimestamp() to the update() method is by including it as

Is it possible to include admin.firestore.FieldValue.serverTimestamp() in an array when using the update() method? I'm trying to achieve something like this:

import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';

admin.initializeApp(functions.config().firebase);
exports.sendNote = functions.https.onCall(async(data,context)=>{
const numeroSender: string = data['numeroSender'];
const amisA = admin.firestore().collection('Amis').doc(numeroReceiver);
const connaissanceABBA:number = 3.0;
const version:number = 1;
const time = admin.firestore.FieldValue.serverTimestamp();
await amisA.update({
            [`amis.${numeroSender}`] : [time,connaissanceABBA,version]
        });
});

However, I am encountering the following error:

Error: Update() requires either a single JavaScript object or an alternating list of field/value pairs that can be followed by an optional precondition. Value for argument "dataOrField" is not a valid Firestore value. FieldValue.serverTimestamp() cannot be used inside of an array (found in field `amis.+33651177261`.`0`).
at WriteBatch.update (/user_code/node_modules/firebase-admin/node_modules/@google-cloud/firestore/build/src/write-batch.js:367:23)
at DocumentReference.update (/user_code/node_modules/firebase-admin/node_modules/@google-cloud/firestore/build/src/reference.js:372:14)
at Object.<anonymous> (/user_code/lib/index.js:121:25)
at next (native)
at fulfilled (/user_code/lib/index.js:4:58)
at process._tickDomainCallback (internal/process/next_tick.js:135:7)
typescriptfirebasegoogle-cloud-platformgoogle-cloud-firestoregoogle-cloud-functions

Answer №1

To replace admin.firestore.FieldValue.serverTimestamp(), consider using admin.firestore.Timestamp.now()

const currentTime = admin.firestore.Timestamp.now();
await amisA.update({
        [`amis.${senderNumber}`] : 
           {
    knowledgeABBA: knowledgeABBA,
    version: version,
    ts: firebase.firestore.FieldValue.serverTimestamp()
  }
});
});

Answer №2

The error message clearly states that "FieldValue.serverTimestamp() cannot be used inside of an array".

This is evident in the following code snippet:

const time = admin.firestore.FieldValue.serverTimestamp();
await amisA.update({
            [`amis.${numeroSender}`] : [time, connaissanceABBA, version]
        });
});

To resolve this issue, consider altering your data model and using a map instead of an array. Here's an example of how to do it:

const time = admin.firestore.FieldValue.serverTimestamp();
await amisA.update({
            [`amis.${numeroSender}`] : 
               {
        connaissanceABBA: connaissanceABBA,
        version: version,
        ts: firebase.firestore.FieldValue.serverTimestamp()
      }
    });
});

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