The request module is required by request-promise

[robinvdvleuten]

I see that you've installed request-promise as dependency without its peer request. Now when you install the package, you'll run in the following warnings;

warning "mongodb-memory-server > request-promise@4.2.2" has unmet peer dependency "request@^2.34".
warning "mongodb-memory-server > request-promise > request-promise-core@1.1.1" has unmet peer dependency "request@^2.34".

As Yarn does not install peer dependencies automatically.

[nodkz]

Good catch!
Fixed in the new version. Tnx.