Unable to use NPM modules for CSV Parsing

[nicetry107]

Hello guys,

Trying to write a game localisation tool. I thought of parsing a CSV file. Found two npm modules which can get the job done quickly ‘fast-csv’ and ‘cdv-parser’. But cocos said “wait, can’t let you have things too easily man!”. anyways, The version I am using is Cocos creator 3.3 and I followed instructions which were,

- npm install --save MODULE_NAME
- npm install

but when I am trying to import module in code like this,

import csv from "fast-csv"

I get no error in vs code but when I return to editor I get following errors,

Failed to resolve fast-csv from file:///Users/zerosingh/work/gzp-pool/assets/scripts/GameManager.ts, treat it as external dependency.
2
[Scene] Failed to resolve fast-csv from pack:///mods/fs/0/assets/scripts/GameManager.js.

Kindly help because It will be really boring to write your own CSV Parser. Great engine bdw. I understand its not. engine’s mistake. Thanks.

[Horchynskyi]

you can look in this topic:

Cocos Creator v3.0 and NPM Modules

Hi, Tried out quickly a CC v3.0 with NPM modules, since it now says it should be working with them. I got immediately errors of it. [image] I created a super simple test with a button and one RxJS timer to demonstrate the most simplest way using one NPM module, one component and one function. Cocos3test.zip (3.9 MB) What am I doing wrong?

[nicetry107]

Hey, thanks for responding.

I tried import-maps but I have a feeling I have a different issue with ‘fast-csv’ module. I am trying to understand difference between CJS and ESM. Currently getting this error when I am trying to import and use it,

Unhandled Promise Rejection: Error: Unable to resolve bare specifier 'util' from http://localhost:7456/scripting/x/mods/fs/0/node_modules/@@fast-csv/format/build/src/index.js (SystemJS Error#8 https://git.io/JvFET#8)

Seems like dependencies are creating issues. Phew!

[linrm]

This error is due to fast-csv dependency on nodejs.

[nicetry107]

Thanks for responding. Is there a way to get around this? I think lot of npm modules use Node js fascilities.

[linrm]

Sorry, no way to get around this and we have no plans to support.

[StudioAMK]

You should consider using “Pure Javascript” modules or may be just create one using plain js codes.
(Since some of nodejs’ modules used native codes which are not possible to implement in Cocos Creator.)

So, simply put, as long as that module can run in browser (without using DOM), it mostly likely will run fine in Cocos Creator too.

Here’s an example of CSV parser using plain JS.