きーんくん ブログ

ドキュメント作成

            //コピー元ドキュメント取得
            cont searchDoc;
            await firebase.firestore()
            .collection('testcolloya')
            .doc('testdocoya')
            .collection("testcoll")
            .where('testfield', '==', 'xxxxxxxxxxxxxxxxxxxx')
            .get()
            .then(snapshot => {
                snapshot.docs.forEach(doc => {
                    searchDoc = doc.data();
                });
            });

            //取得したドキュメントをコピーしてドキュメント作成
            let insertDoc = Object.assign({}, searchDoc);

            //ドキュメントのfield変更
            insertDoc.testfield = 'testfield';
            insertDoc.testfield2 = 'testfield2';

            //ドキュメント作成
            await firebase.firestore()
            .collection('testcolloya')
            .doc('testdocoya')
            .collection("testcoll")
            .add(insertDoc);

コレクションのドキュメント全件取得

            //コレクションのドキュメント全件取得
            var docData = [];
            await firebase.firestore()
            .collection('testcolloya')
            .doc('testdocoya')
            .collection("testcoll")
            .get()
            .then((doc) => {
                if (doc.docs) {
                    doc.docs.map((d) => {
                        let data = d.data();
                        docData.push(data);
                    });
                }
                else{
                    console.log('none');
                }
            });

ドキュメントId取得

            //testfieldが該当の値のtestcollのドキュメントID取得
            const documentId;
            await firebase.firestore()
            .collection('testcolloya')
            .doc('testdocoya')
            .collection("testcoll")
            .where('testfield', '==', '1234xxxxxxxxxxxxx5678')
            .get()
            .then(snapshot => {
                snapshot.docs.forEach(doc => {
                    documentId = doc.id;
                });
            });

ドキュメント更新

        //testfieldの値の更新
        await firebase.firestore()
        .collection('testcolloya')
        .doc('testdocoya')
        .collection("testcoll")
        .doc("xxxxxxxxxxxxxxxxxxxx")
        .update({
            testfield: "testName"
        });

ドキュメント削除

            //testfieldが該当の値のtestcollのドキュメントID取得
            const documentId;
            await firebase.firestore()
            .collection('testcolloya')
            .doc('testdocoya')
            .collection("testcoll")
            .where('testfield', '==', '1234xxxxxxxxxxxxx5678')
            .get()
            .then(snapshot => {
                snapshot.docs.forEach(doc => {
                    documentId = doc.id;
                });
            });

            //testcollのドキュメントIDのドキュメント削除
            try{
                await firebase.firestore()
                .collection('testcolloya')
                .doc('testdocoya')
                .collection("testcoll")
                .doc(documentId)
                .delete();
            }catch(e){
                console.log(e);
            }

Getting all documents from one collection in Firestore

            const events = await firebase.firestore().collection('users')
            events.get().then((querySnapshot) => {
                const tempDoc = []
                querySnapshot.forEach((doc) => {
                    var data = doc.data();
                    console.log(data);
                    tempDoc.push(data);
                })
                console.log(tempDoc);
            })

匿名認証サンプルコード

            const firebaseConfig = {
                apiKey: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
                authDomain: "sample.firebaseapp.com",
                databaseURL: "https://sample.firebaseio.com",
                projectId: "sample",
                storageBucket: "sample.appspot.com",
                messagingSenderId: "XXXXXXXXX",
                appId: "1:XXXXXXX:web:XXXXX"
            };

            const app = firebase.initializeApp(firebaseConfig);

            await firebase.auth().signInAnonymously().catch(e => {
                console.log(e)
            })