Why is mongodb included as a peerDependency?

[srlowe]

Seems like it would be more appropriate to include it as a regular dependency. I've seen some weird npm install/uninstall behaviour related to this.

[vkarpov15]

Similar reasons to https://nodejs.org/en/blog/npm/peer-dependencies/ . Things like https://github.com/kissjs/node-mongoskin/blob/master/lib/helper.js won't work quite right if you have mongoskin depending on one version of mongodb and are using another version of mongodb.

[srlowe]

What if someone upgrades the root mongodb installation? Won't that potentially cause problems for mongoskin?

[vkarpov15]

In theory no, mongoskin is meant to be a much thinner layer on top of the mongodb driver than say mongoose. As a matter of fact, nowadays the features mongoskin provides that the mongodb driver doesn't are pretty limited, mostly just findById and a marginally better ObjectId checker, both of which are unlikely to be affected by patch releases.

[srlowe]

Ok. Thanks for the clarification.