无法保存“自定义blob”到Firestore [英] Cannot save "custom blob" to Firestore

问题描述

在javascript中我从数组中创建一个blob：

In javascript I am creating a blob from an array like so:

const a = new Blob([[1,2,3]]);

当我尝试保存这个blob时：

when I try to save this blob like:

this.afs.collection('events').doc(event.getID()).set({data: new Blob([[1,2,3]])}).then((some) => {
      debugger;
    })

我收到错误：

使用无效数据调用DocumentReference.set（）。不支持的字段值：自定义Blob对象（在字段数据中找到）

DocumentReference.set() called with invalid data. Unsupported field value: a custom Blob object (found in field data)

如何通过JS将blob保存到Firestore？

What should I do to save a blob via JS to Firestore?

推荐答案

您的blob必须是 firebase.firestore.Blob 。然后使用静态 fromUint8Array ：

Your blob needs to be of type firebase.firestore.Blob. Then using static fromUint8Array:

var firebase = require('firebase');
var app = firebase.initializeApp({ ... });
...
const blob = firebase.firestore.Blob.fromUint8Array(new Uint8Array([1,2,3]));

这篇关于无法保存“自定义blob”到Firestore的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！