Middleware Types of Middleware Pre Use Cases Errors in Pre Hooks Post middleware Asynchronous Post Hooks Define Middleware Before Compiling Models Save/Validate Hooks Namin...

Built-in Promises Queries are not promises Queries are thenable Should You Use exec() With await ? Plugging in your own Promises Library Built-in Promises Mongoose async o...

Deprecation Warnings Summary The useNewUrlParser Option findAndModify() ensureIndex() remove() useUnifiedTopology update() count() GridStore Deprecation...

Getters/Setters in Mongoose Getters Setters Differences vs ES6 Getters/Setters Getters/Setters in Mongoose Mongoose getters and setters allow you to execute custom logic when...

Queries Executing Queries are Not Promises References to other documents Streaming Versus Aggregation Next Up Queries Mongoose models provide several static helper functi...

SchemaTypes Example SchemaType Options All Schema Types Indexes String Number Date Usage notes: Dates Mixed ObjectIds Arrays Creating Custom Types The `schema.path()`...

mongoose连接问题 机器假死 查看sockstat状态 使用ulimit设置文件最大打开数 步骤1：修改/etc/security/limits.conf 步骤2：修改/etc/profile 步骤3：修改 file-max 查看mongodb连接数 服务器状态里的connections是什么？ connections.current ...

Population Saving refs Population Setting Populated Fields Field selection Populating multiple paths Query conditions and other options Refs to children Populating an existi...

API Docs Mongoose Mongoose() Parameters Example: Mongoose.prototype.Aggregate() Mongoose.prototype.CastError() Parameters Mongoose.prototype.Collection() Mongoose.prototyp...

Getting Started Congratulations Getting Started First be sure you have MongoDB and Node.js installed. Next install Mongoose from the command line using npm : $ npm install...