Firestore 在 google-cloud firestore 上查询“IN”

Question

(Using typescript for better readability. Vanilla js is always welcome)

Nodejs App, using these imports:

import { FieldPath, DocumentReference } from '@google-cloud/firestore';

and this function

async getByIds(ids: DocumentReference[]) {
    const collection = this.db.client.collection('authors');
    const query = await collection.where(FieldPath.documentId(), 'in', ids).get();

    return query.docs.map(d => ({ id: d.id, ...d.data() }));
}

returns this very specific error:

The corresponding value for FieldPath.documentId() must be a string or a DocumentReference.

The debugger confirms that ids is in fact a DocumentReference array.

Maybe the @google-cloud/firestore package isn't aligned to the firebase one?

EDIT: as noted by Doug in it's comment, I forgot to put the code for this.db.client . Here you are:

export class DatabaseProvider {
    private _db: Firestore;
    get client(): Firestore {
        return this._db;
    }

    constructor() {
        this._db = new Firestore({
            projectId: ...,
            keyFilename: ...
        });
    }
}

And used as

const db = new DatabaseProvider();

Answer 1

It seems like what you're trying to do is a batch get, which is available via a different method: getAll() . I think you want this:

async getByIds(ids: DocumentReference[]) {
  return this.db.client.getAll(...ids);
}