[英]How to insert a long/BigInt with Node.js MongoDB Driver?
I try to insert a long/BigInt into my MongoDB Database with the Node.js Mongo Driver.我尝试使用 Node.js Mongo 驱动程序将long/BigInt插入到我的 MongoDB 数据库中。
I've already tried with BigInt , but it doesn't insert the number (expiry) in the document.我已经尝试过BigInt ,但它没有在文档中插入数字(到期)。
let expire = BigInt(parseInt((Date.now() / 1000) + 21600, 10));
let newDoc = {
type: "group.test",
expiry: expire
};
collection.insertOne(newDoc);
// it only inserts the type.
I want it to save as BigInt because we need to get it later with a Java Server.我希望它保存为BigInt,因为我们稍后需要使用 Java Server 获取它。
use Long使用长
https://mongodb.github.io/node-mongodb-native/3.5/api/Long.html https://mongodb.github.io/node-mongodb-native/3.5/api/Long.html
const { Long } = require('mongodb');
let expire = BigInt(parseInt((Date.now() / 1000) + 21600, 10));
let newDoc = {
type: "group.test",
expiry: new Long(Number(expire & 0xFFFFFFFFn), Number((expire >> 32n) & 0xFFFFFFFFn))
};
BigInt is an object in JS you can't just pass it to Mongodb. BigInt 是 JS 中的一个对象,您不能将它传递给 Mongodb。 Take a look at the data types supported by Mongodb.
看一下Mongodb支持的数据类型。
https://docs.mongodb.com/manual/reference/bson-types/ https://docs.mongodb.com/manual/reference/bson-types/
I would suggest storing the BigInt as string in mongodb and let the reader parse it when the document is read.我建议将 BigInt 作为字符串存储在 mongodb 中,让读者在阅读文档时解析它。
// Note: this function is a simple serializer
// meant to demo the concept.
function bigIntSerializer(num){
return {
type: "BigInt",
value: num.toString()
};
}
let expire = BigInt(parseInt((Date.now() / 1000) + 21600, 10));
let newDoc = {
type: "group.test",
expiry: bigIntSerializer(expire)
};
collection.insertOne(newDoc);
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