CODEWITHSUNDEEP
firebasedictionaryflutterdartgoogle-cloud-firestore
Isaak
Isaak

Reputation: 1379

How to convert Firebase Map to Dart Map?

This fails silently in Dart:

Map<String,String> dartMap = doc.data['keyForFieldthatContainsMap'];

doc is a firebase document (type DocumentSnapshot) that has a field "keyForFieldthatContainsMap" which contains a Map.

doc.data is of type:

Map<String,dynamic>

At runtime doc.data['keyForFieldthatContainsMap'] has the type:

_InternalLinkedHashMap<dynamic, dynamic>

from which I don't know how to access the keys and values.

I'm using the package:

import 'package:cloud_firestore/cloud_firestore.dart';

I'm looking for a way to read map fields just like I can read string, number, boolean,... fields from firebase.

Upvotes: 1

Views: 1118

Answers (1)

Nick Wassermann
Nick Wassermann

Reputation: 182

Try to change your dartMap to Map<dynamic,dynamic>. Your error might occour cause you cant now which types your Map in Firestore has.

Upvotes: 1

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