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- Getting Started
- Installation Guide
The recommended way to get started using the Node.js 2.0 driver is by using the
NPM (Node Package Manager) to install the dependency in your project.
Given that you have created your own project using
npm init we install the mongodb driver and it’s dependencies by executing the following
npm install mongodb --save
This will download the MongoDB driver and add a dependency entry in your
The MongoDB driver depends on several other packages. These are.
The only native extension is the
kerberos extension. This is a
peerDependency for the
mongodb module. This means that if you need to use
kerberos you will need to add the
kerberos module to your modules dependencies.
If you have NPM 2.0 or earlier NPM will attempt to download and build the
kerberos module if you do not have it defined as a dependency in your module. However from NPM 3.0 onwards NPM will not attempt to build the
kerberos module but instead print a warning in your install log that looks something like the following.
npm WARN EPEERINVALID firstname.lastname@example.org requires a peer of kerberos@~0.0 but none was installed.
This tells you that the driver could not resolve its
peerDependency. However don’t worry – if you do not intend to use kerberos, you can safely ignore the NPM warning above. If you are using kerberos, then you will need to install the
kerberos package from NPM and save it as a local dependency in your
npm install email@example.com --save
kerberos package is a C++ extension that requires a build environment to be installed on your system. You must be able to build node.js itself to be able to compile and install the
kerberos module. Furthermore the
kerberos module requires the MIT Kerberos package to correctly compile on UNIX operating systems. Consult your UNIX operation system package manager what libraries to install.
Windows already contains the SSPI API used for Kerberos authentication. However you will need to install a full compiler tool chain using visual studio C++ to correctly install the kerberos extension.
Diagnosing on UNIX
If you don’t have the build essentials it won’t build. In the case of linux you will need gcc and g++, node.js with all the headers and python. The easiest way to figure out what’s missing is by trying to build the kerberos project. You can do this by performing the following steps.
git clone https://github.com/christkv/kerberos.git cd kerberos npm install
If all the steps complete you have the right toolchain installed. If you get node-gyp not found you need to install it globally by doing.
npm install -g node-gyp
If correctly compiles and runs the tests you are golden. We can now try to install the mongod driver by performing the following command.
cd yourproject npm install mongodb --save
If it still fails the next step is to examine the npm log. Rerun the command but in this case in verbose mode.
npm --loglevel verbose install mongodb
This will print out all the steps npm is performing while trying to install the module.
Diagnosing on Windows
A known compiler tool chain known to work for compiling
kerberos on windows is the following.
- Visual Studio c++ 2010 (do not use higher versions)
- Windows 7 64bit SDK
- Python 2.7 or higher
Open visual studio command prompt. Ensure node.exe is in your path and install node-gyp.
npm install -g node-gyp
Next you will have to build the project manually to test it. Use any tool you use with git and grab the repo.
git clone https://github.com/christkv/kerberos.git cd kerberos npm install node-gyp rebuild
This should rebuild the driver successfully if you have everything set up correctly.
Other possible issues
Your python installation might be hosed making gyp break. I always recommend that you test your deployment environment first by trying to build node itself on the server in question as this should unearth any issues with broken packages (and there are a lot of broken packages out there).
Another thing is to ensure your user has write permission to wherever the node modules are being installed.comments powered by Disqus