npm install --save @types/express-serve-static-core
This package contains type definitions for Express (http://expressjs.com).
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/express-serve-static-core.
These definitions were written by Boris Yankov, Michał Lytek, Kacper Polak, Satana Charuwichitratana, Sami Jaber, Jose Luis Leon, David Stephens, and Shin Ando.