json - npm recursive install bower dependencies -

i have multiple node modules developed myself stored on private gitlab server. in project, install modules bower, project structure looks this:

appname     bower_components         module1             ...             package.json         module2         ...      node_modules      ...      package.json 

when call npm install dependencies package.json file located in folder "appname" installed. problem is, modules, install bower, have dependencies, not listed in package.json in root folder. how can install dependencies without installing them globally? should npm install bower_components\module1. tried use command line option --prefix copies folder inside node_modules folder.

thanks help