Add authentication Generate authentication Create a user and log in Create the user Get a token Securing the messages service Securing real-time events What’s next? Add ...

六、API 1、new Datastore(options) 2、db.insert(doc, callback) 3、db.find(query, callback) 4、db.findOne(query, callback) 5、db.update(query, update, options, callback) 6、db.remove(qu...

五、源码简析 五、源码简析 想要更深入的理解 NeDB，就需要了解它是如何实现的。我这里给出一些我阅读源码时记忆比较深刻的几个点。 1、所有改变数据的操作 (indert,update,remove)，都会触发 persistence.persistNewState 方法，比如可以看一下 datastore.js 第 265-268 行的 Data...

Performance Speed Memory footprint Performance Speed NeDB is not intended to be a replacement of large-scale databases such as MongoDB, and as such was not designed for spe...

Creating a Chat Application Creating a Chat Application Well alright! Let’s build our first Feathers app! We’re going to build a real-time chat app with NeDB as the database. ...

Pull requests Pull requests Important: I consider NeDB to be feature-complete, i.e. it does everything I think it should and nothing more. As a general rule I will not accept p...

Array fields Array fields When a field in a document is an array, NeDB first tries to see if the query value is an array to perform an exact match, then whether there is an arr...

Persistence Persistence Under the hood, NeDB's persistence uses an append-only format, meaning that all updates and deletes actually result in lines added at the end of the dat...

9、db.persistence.compactDatafile 9、db.persistence.compactDatafile 作用： 为了性能考虑，NeDB 存储使用 append-only 格式，意味着所有的更改和删除操作其实都是被添加到了文件末尾。每次加载数据库时，数据库会自动被压缩，才能拿到规范的文档集。 也可以手动调用压缩方法 d...

Databases An in-memory database In the browser Querying As a REST API What’s next? Databases In the services chapter we created a custom in-memory messages service that c...