i am using docker to n8n. I want to use let’s say deep-diff npm package inside of my “function node” or “Http node” not sure how to.
Overall i’m very impressed with this idea and thanks all for your efforts, I really liked the way it functions. I am trying to automate my api testing using n8n 
Hello @Naresh_Nagarajan welcome to the community! Thanks, really great to hear that you enjoy n8n!
About your question. You can check out this topic which should answer your question:
Thank you very much for the quick response.
Mounting volume for libs may create issue for example mac compiled lib will not work in alpine. So i did,
FROM n8nio/n8n:0.55.1
RUN npm install moment -g
ENV NODE_FUNCTION_ALLOW_EXTERNAL=moment
CMD ["n8n"]
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