dot-prop
Get, set, or delete a property from a nested object using a dot path
doc-path
A document path library for Node
jsonpath
Query JavaScript objects with JSONPath expressions. Robust / safe JSONPath engine for Node.js.
get-value
Use property paths like 'a.b.c' to get a nested value from an object. Even works when keys have dots in them (no other dot-prop library can do this!).