This repository is for a proof-of-concept showing it is possible to...
- Download an npm package, then
require()and use it at runtime using Node.js. - Download an npm package, then
require()and use it in the jsii runtime for a jsii target language. In this case, Python was used. - Use the same npm package in a network-restricted environment if it was installed in the consuming TS/JS project, before execution.
- Use the same npm package in a network-restricted environment if it's jsii target language version was installed in the consuming project. In this case, if it's Python version was installed before execution.
This repository has 3 subdirectories:
lazy-load-npm-packages-poc/: A jsii library containing the logic to dynamically load npm dependencies at runtime.
python-consumer/: A Python project that uses lazy-load-npm-packages-poc.
node-consumer/: A TypeScript project that uses lazy-load-npm-packages-poc.
cd lazy-load-npm-packages-poc
npm run build && npm run package
cd python-consumer
python3 -m venv .env
source .env/bin/activate
pip install -r requirements.txt
./index.py
- Clear npm cache, and install the Python version of the dependency.
npm cache clean --force
pip install aws-cdk.core
-
Turn your mac into airplane mode or turn off wi-fi.
-
For the npm version of the dependency to be available in the jsii runtime process, the Python library has to have been loaded/imported already. Add the following or something similar to
./index.py:
from aws_cdk.core import App
- Run it.
./index.py
npm install
npx tsc
node ./index.js
- Clear npm cache, and install the dependency you are trying to dynamically load.
npm cache clean --force
npm install @aws-cdk/core
-
Turn your mac into airplane mode or turn off wi-fi.
-
Run it.
node ./index.js