FLUJOS/BACK_BACK/node_modules/mongod/README.md
2025-11-07 00:06:12 +01:00

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# mongod
[![NPM version](https://img.shields.io/npm/v/mongod.svg)](https://www.npmjs.com/package/mongod)
[![Build Status](https://img.shields.io/travis/BrandonZacharie/node-mongod/master.svg)](https://travis-ci.org/BrandonZacharie/node-mongod)
[![Coverage Status](https://img.shields.io/coveralls/BrandonZacharie/node-mongod/master.svg)](https://coveralls.io/github/BrandonZacharie/node-mongod?branch=master)
[![License](https://img.shields.io/npm/l/redis-server.svg)](https://github.com/BrandonZacharie/node-mongod/blob/master/LICENSE.md)
Start and stop a local MongoDB server in Node.js like a boss.
## Installation
```Bash
npm install mongod
```
## Usage
The constructor exported by this module optionally accepts a single argument;
a number or string that is a port or an object for configuration.
### Basic Example
```JavaScript
const Mongod = require('mongod');
// Simply pass the port that you want a MongoDB server to listen on.
const server = new Mongod(27017);
server.open((err) => {
if (err === null) {
// You may now connect a client to the MongoDB
// server bound to port 27017.
}
});
```
### Configuration
| Property | Type | Default | Description
|:--------------|:--------|:--------|:-----------
| bin | String | mongod | A path to a MongoDB server binary.
| conf | String | | A path to a MongoDB server configuration file.
| dbpath | String | | A path to a to store MongoDB server files.
| storageEngine | String | | A MongoDB storage engine (i.e. wiredTiger).
| nojournal | Boolean | false | A flag to tell MongoDB to disable journaling.
| port | Number | 27017 | A port to bind a MongoDB server to.
A MongoDB server binary must be available. If you do not have one in $PATH,
provide a path in configuration.
```JavaScript
const server = new Mongod({
port: 27017,
bin: '/opt/local/bin/mongod'
});
```
You may use a MongoDB configuration file instead of configuration object
properties that are flags (i.e. `dbpath` and `port`). If `conf` is
provided, no flags will be passed to the binary.
```JavaScript
const server = new Mongod({
conf: '/path/to/mongodb.conf'
});
```
### Methods
For methods that accept `callback`, `callback` will receive an `Error`
as the first argument if a problem is detected; `null`, if not.
#### Mongod#open()
Attempt to open a MongoDB server. Returns a `Promise`.
##### Promise style `open()`
``` JavaScript
server.open().then(() => {
// You may now connect to the MongoDB server.
});
```
##### Callback style `open()`
``` JavaScript
server.open((err) => {
if (err === null) {
// You may now connect to the MongoDB server.
}
});
```
#### Mongod#close()
Close the associated MongoDB server. Returns a `Promise`. NOTE: Disconnect
clients prior to calling this method to avoid receiving connection
errors from clients.
##### Promise style `close()`
``` JavaScript
server.close().then(() => {
// The MongoDB server is now closed.
});
```
##### Callback style `close()`
``` JavaScript
server.close((err) => {
// The MongoDB server is now closed.
});
```
### Properties
#### Mongod#isOpening
Determine if the instance is starting a MongoDB server; `true` while a
process is spawning, and/or about to be spawned, until the contained MongoDB
server either starts or errs.
#### Mongod#isRunning
Determine if the instance is running a MongoDB server; `true` once a process
has spawned and the contained MongoDB server is ready to service requests.
#### Mongod#isClosing
Determine if the instance is closing a MongoDB server; `true` while a
process is being, or about to be, killed until the contained MongoDB server
either closes or errs.
### Events
#### stdout
Emitted when a MongoDB server prints to stdout or stderr.
#### opening
Emitted when attempting to start a MongoDB server.
#### open
Emitted when a MongoDB server becomes ready to service requests.
#### closing
Emitted when attempting to stop a MongoDB server.
#### close
Emitted when a MongoDB server closes.
## Credits
A special thanks to @ForbesLindesay for contributing the NPM package name.