Flutter Firestore add new document with Custom ID

问题

How to add new document with custom id using Dart and Flutter?

PS: I can add new document to collection but its id sets randomly, using this code

postRef.add(data);

which postRef is CollectionReference and data is Map<String, dynamic>

回答1:

You can use set function instead of add.

Here's full code:

final CollectionReference postsRef = Firestore.instance.collection('/posts');

var postID = 1;

Post post = new Post(postID, "title", "content");
Map<String, dynamic> postData = post.toJson();
await postsRef.document(postID).setData(postData);

I hope that help anyone.

回答2:

String uniqueCode = //Your Unique Code
DocumentReference reference = Firestore.instance.document("test/" + uniqueCode );

//Setting Data
Map<String, String> yourData;
reference.setData(yourData);

来源：https://stackoverflow.com/questions/55328838/flutter-firestore-add-new-document-with-custom-id