<@U01JVDKASAC> We have an NPM package where we hav...
# helpt
Trey Overton
05/16/2022, 2:41 PM@Frank We have an NPM package where we have a lot of utility functions we use across multiple apps. I have attempted to put an SST stack into that package, but as soon as I include any form of "import { ... } from '<our package>';", resulting Lambda functions fail to execute when deployed (via Seed) with an error:
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"Error: Cannot find module 'punycode/'\nRequire stack:\n- /var/task/src/lambda.js\n- /var/runtime/UserFunction.js\n- /var/runtime/index.js"t
thdxr
05/16/2022, 4:05 PMit's likely the way you're bundling things is leaking stacks code into your runtime function
thdxr
05/16/2022, 4:06 PMpunycode is a dependency of aws-cdk
thdxr
05/16/2022, 4:06 PMand with your setup esbuild isn't able to treeshake it, how are you importing your shared code in your function from your package?
t
Trey Overton
05/16/2022, 4:06 PMI saw your other reply to someone else where they were getting a lot of extra code because of an index file exporting many things.
Trey Overton
05/16/2022, 4:07 PMLike this:
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export { utility } from './utility';
// Responses for REST API endpoints
export { response, HttpResponse } from './response';
// Default service endpoints
export { main as delete } from './endpoints/delete';
export { main as get } from './endpoints/get';
export { main as list } from './endpoints/list';
export { main as reindex } from './endpoints/reindex';
export { main as search } from './endpoints/search';
export { main as upsert } from './endpoints/upsert';
<... and more>Trey Overton
05/16/2022, 4:07 PMWe added the SST exports in that same file, so perhaps that's combining them all into a single massive blob?
t
thdxr
05/16/2022, 4:21 PMyeah so with esbuild it doesn't treeshake if you import from an index file, it's a limitaiton that kinda sucks
thdxr
05/16/2022, 4:21 PMso I stopped creating index fiels and I now import from the subpath
thdxr
05/16/2022, 4:22 PMI use to have
import { Thing } from "@company/core"import { Thing } from "@company/core/thing"t
Trey Overton
05/16/2022, 4:22 PMI moved the exports out of that file and it fixed the problem! So that's amaze-balls.
Trey Overton
05/16/2022, 4:22 PMAfter a day and half of messing with this one problem.
t
thdxr
05/16/2022, 4:22 PMyeah it took me a lot of focused testing with esbuild to understand this. hopefully one day it gets import treeshaking
t
Trey Overton
05/16/2022, 4:23 PMSo I need to rethink how I organize the utility package and then import those functions directly without an index file.
t
thdxr
05/16/2022, 4:23 PMthdxr
05/16/2022, 4:23 PMit's the re-exporting specifically it has trouble with
t
Trey Overton
05/16/2022, 4:24 PMThere you go. Thank you!
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