iRoachie / aws-sam-esm-layers-bug

layers-bug

Bug with AWS sam nodejs esm and local layers.

Example shows a local layer nanoid, and two lambda functions with identical code just different module type.

Running Example

# install local layer

cd nanoid/nodejs

npm install

Common JS

sam local invoke CJSFunction

ESM

sam local invoke ESMFunction

Expected results

Both functions should perform the same task and return the string hello <random-string>.

Observed results

Common JS version works while the ESM version throws an error - Cannot find package 'nanoid'