TypeError: class_transformer_1.classToPlain is not a function - using 1.15.0-beta.10

I’m not sure if this is an issue with 1.15.0-beta.10. I’ve upgraded my ORM app and added/modified the following in my package.json file:

"dependencies": {
    "@aws-sdk/client-dynamodb": "^3.131.0",
    "@aws-sdk/lib-dynamodb": "^3.131.0",
    "@typedorm/common": "1.15.0-beta.10",
    "@typedorm/core": "1.15.0-beta.10",
    "aws-crt": "^1.13.1",

...

I haven’t changed any other files (I’m not sure if i needed to?)

Everything builds fine, but at run time I get the following stack errors.

          "stacktrace": [
            "TypeError: class_transformer_1.classToPlain is not a function",
            "    at DocumentClientRequestTransformer.applyClassTransformerFormations (/path-to-my-app/packages/core/src/classes/transformer/base-transformer.ts:52:36)",
            "    at DocumentClientRequestTransformer.toDynamoEntity (/path-to-my-app/packages/core/src/classes/transformer/base-transformer.ts:94:31)",
            "    at DocumentClientRequestTransformer.toDynamoPutItem (/path-to-my-app/packages/core/src/classes/transformer/document-client-request-transformer.ts:136:31)",
            "    at EntityManager.<anonymous> (/path-to-my-app/packages/core/src/classes/manager/entity-manager.ts:198:55)",
            "    at Generator.next (<anonymous>)",
            "    at /path-to-my-app/lib/orm/node_modules/@typedorm/core/cjs/src/classes/manager/entity-manager.js:8:71",
            "    at new Promise (<anonymous>)",
            "    at __awaiter (/path-to-my-app/lib/orm/node_modules/@typedorm/core/cjs/src/classes/manager/entity-manager.js:4:12)",
            "    at EntityManager.create (/path-to-my-app/lib/orm/node_modules/@typedorm/core/cjs/src/classes/manager/entity-manager.js:35:16)",
            "    at /path-to-my-app/myapp/src/resolvers/mutation/createProduct.ts:17:70"
          ]

What’s kind of odd is the reference to the following file path that doesn’t exist:

/packages/core/src/classes/transformer/base-transformer.ts

[danieljarrett74]

@whimzyLive No problem. You can find it here.

https://github.com/danieljarrett74/typedorm-test

[danieljarrett74]

Thanks @whimzyLive thats a great help. I currently use webpack to build the project which uses the module/package the the typedorm code is in. But I thought it might be easier to build this local module with rollup. And if it wasn’t for the following it would be ok 😃

---

I tried following your example on your forked repo and it built fine but when I included the built module in my project I got the error: ES modules is not supported

So then I tried to build it as a cjs with the following config (below) and everything worked fine, but at runtime the AUTO_GENERATE_ATTRIBUTE_STRATEGY.ISO_DATE isn’t working. As in when I do an insert the created and updated date for the following code don’t get created:

  @AutoGenerateAttribute({
    strategy: AUTO_GENERATE_ATTRIBUTE_STRATEGY.ISO_DATE,
  })
  createdAt!: string;

  @AutoGenerateAttribute({
    strategy: AUTO_GENERATE_ATTRIBUTE_STRATEGY.ISO_DATE,
    autoUpdate: true,
  })

rollup.config.js

import typescript from 'rollup-plugin-typescript2'
import json from '@rollup/plugin-json';
import commonjs from '@rollup/plugin-commonjs';
import { nodeResolve } from "@rollup/plugin-node-resolve";
import nodePolyfills from 'rollup-plugin-node-polyfills';

export default {
	"input": "src/index.ts",
	"output": {
		"sourcemap": "true",
		"file": "dist/index.js",
		"format": "cjs"
	},
	"external": ["aws-sdk","uuid"],
	"plugins": [
		commonjs(
			{
				include: 'node_modules/**',
      ignoreGlobal: true
			}
		),
		typescript({ sourceMap: false }),
		nodeResolve({
			preferBuiltins: true		}),
		json(),
	],
	onwarn: function (warning) {
		// Skip certain warnings

		// should intercept ... but doesn't in some rollup versions
		if (warning.code === 'THIS_IS_UNDEFINED') { return; }

		if (warning.code === 'CIRCULAR_DEPENDENCY') { return; }

		// console.warn everything else
		console.warn(warning.message);
	}
};

tsconfig.json

{
  "compilerOptions": {
    "target": "ESNext",
    "module": "ESNext",
    "strict": true,
    "esModuleInterop": true, 
    "forceConsistentCasingInFileNames": true,
    "moduleResolution": "node",
    "sourceMap": true,
    "declaration": true,
    "declarationDir": "./dist",
    "outDir": "./dist",
    "allowSyntheticDefaultImports":true,
    "skipLibCheck": true,
    "experimentalDecorators": true /* Enables experimental support for ES7 decorators. */,
    "emitDecoratorMetadata": true /* Enables experimental support for emitting type metadata for decorators. */
  },

  "include": ["src/**/*.ts", "dist/**/*.ts"]}

package.json

{
  "name": "orm",
  "version": "0.1.6",
  "main": "./dist/",
  "files": [
    "dist"
  ],
  "scripts": {
    "build": "rollup -c && npm pack"
  },
  "license": "MIT",
  "dependencies": {
    "@aws-sdk/client-dynamodb": "^3.131.0",
    "@aws-sdk/lib-dynamodb": "^3.131.0",
    "@typedorm/common": "1.15.0-beta.10",
    "@typedorm/core": "1.15.0-beta.10",
    "@types/node": "^18.0.3",
    "aws-crt": "^1.13.1",
    "aws-sdk": "^2.1178.0",
    "reflect-metadata": "^0.1.13",
    "rollup-plugin-node-polyfills": "^0.2.1",
    "ts-node": "^10.8.1",
    "typescript": "^4.7.4"
  },
  "devDependencies": {
    "rollup": "^2.77.0",
    "@rollup/plugin-commonjs": "^22.0.1",
    "@rollup/plugin-json": "^4.1.0",
    "@rollup/plugin-node-resolve": "^13.3.0",
    "rollup-plugin-typescript2": "^0.32.1",
    "@rollup/plugin-typescript": "^8.3.3"
  }
}