[GitHub] [echarts] htr3n commented on issue #13700: Tree shaking support

[GitBox <gi...@apache.org>]

htr3n commented on issue #13700:
URL: https://github.com/apache/echarts/issues/13700#issuecomment-935401250


   @pissang I used ECharts on the server-side based on your example here: https://gist.github.com/pissang/4c32ee30e35c91336af72b129a1a4a73.
   
   I configured my Node project to use ESM by default and wanted to use tree-shaking for small bundle (https://echarts.apache.org/handbook/en/basics/release-note/v5-upgrade-guide/#tree-shaking-api).
   
   Nonetheless, the following line throw an exception
   
   ```javascript
   import * as echarts from 'echarts/core';
   ```
   
   The exception
   ```
   /usr/bin/node /home/alext/Projects/NodeJS/echarts-ssr/demo/main.js
   internal/process/esm_loader.js:74
       internalBinding('errors').triggerUncaughtException(
                                 ^
   
   Error [ERR_MODULE_NOT_FOUND]: Cannot find module '/home/alext/Projects/NodeJS/echarts-ssr/node_modules/echarts/core' imported from /home/alext/Projects/NodeJS/echarts-ssr/index.js
   Did you mean to import echarts-ssr/node_modules/echarts/core.js?
       at new NodeError (internal/errors.js:322:7)
       at finalizeResolution (internal/modules/esm/resolve.js:308:11)
       at moduleResolve (internal/modules/esm/resolve.js:731:10)
       at Loader.defaultResolve [as _resolve] (internal/modules/esm/resolve.js:842:11)
       at Loader.resolve (internal/modules/esm/loader.js:89:40)
       at Loader.getModuleJob (internal/modules/esm/loader.js:242:28)
       at ModuleWrap.<anonymous> (internal/modules/esm/module_job.js:76:40)
       at link (internal/modules/esm/module_job.js:75:36) {
     code: 'ERR_MODULE_NOT_FOUND'
   }
   ```
   
   Here is the `package.json` of my project 
   ```json
   {
     "name": "echarts-ssr",
     "description": "",
     "version": "0.0.1",
     "main": "index.js",
     "author": "",
     "license": "MIT",
     "private": true,
     "type": "module",
     "dependencies": {
       "canvas": "^2.8.0",
       "echarts": "^5.2.1",
       "jsdom": "^17.0.0"
     },
     "devDependencies": {
       "@types/node": "^14",
       "tslint": "^6.1.3",
       "typescript": "^4.4.3"
     },
     "packageManager": "yarn@3.0.2"
   }
   ```
   
   How can I import sub-modules of ECharts  as I did in another (React) project?
   
   ```javascript
   import {LineChart} from "echarts/charts";
   import {SVGRenderer} from "echarts/renderers";
   ``` 


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