I'm trying to get sequelize-typescript decorators to compile with ts-node. I have created the following model for a user:
import {
AutoIncrement,
Column,
DataType,
Model,
PrimaryKey,
Table,
} from "sequelize-typescript";
@Table
export class User extends Model<User> {
@PrimaryKey
@AutoIncrement
@Column(DataType.INTEGER)
id!: number;
@Column(DataType.STRING)
username!: string;
@Column(DataType.STRING)
passwordHash!: string;
@Column(DataType.STRING)
email!: string;
}
VSCode doesn't complain about anything, but ts-node gives the following errors for @Table, @PrimaryKey and @AutoIncrement when I try to compile:
/app/node_modules/ts-node/src/index.ts:859
return new TSError(diagnosticText, diagnosticCodes, diagnostics);
^
TSError: ⨯ Unable to compile TypeScript:
src/models/User.ts(10,2): error TS1238: Unable to resolve signature of class decorator when called as an expression.
The runtime will invoke the decorator with 2 arguments, but the decorator expects 1.
src/models/User.ts(10,2): error TS1270: Decorator function return type 'Function' is not assignable to type 'void | typeof User'.
Type 'Function' is missing the following properties from type 'typeof User': isInitialized, initialize, tableName, primaryKeyAttribute, and 71 more.
src/models/User.ts(12,4): error TS1240: Unable to resolve signature of property decorator when called as an expression.
Argument of type 'ClassFieldDecoratorContext<User, number> & { name: "id"; private: false; static: false; }' is not assignable to parameter of type 'string'.
src/models/User.ts(13,4): error TS1240: Unable to resolve signature of property decorator when called as an expression.
Argument of type 'ClassFieldDecoratorContext<User, number> & { name: "id"; private: false; static: false; }' is not assignable to parameter of type 'string'.
...
Here's my tsconfig.json:
{
"compilerOptions": {
"target": "es6",
"module": "commonjs",
"esModuleInterop": true,
"forceConsistentCasingInFileNames": true,
"strict": true,
"skipLibCheck": true,
"experimentalDecorators": true,
"emitDecoratorMetadata": true,
"strictPropertyInitialization": false
}
}
And here's my package.json (running nodemon on Node 18 LTS):
{
"name": "server",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"dev": "nodemon --exec ts-node ./src/index.ts",
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC",
"dependencies": {
"express": "^4.18.2",
"morgan": "^1.10.0",
"pg": "^8.11.3",
"reflect-metadata": "^0.2.1",
"sequelize": "^6.35.2",
"sequelize-typescript": "^2.1.6",
"ts-node": "^10.9.2",
"typescript": "^5.3.3"
},
"devDependencies": {
"@types/express": "^4.17.21",
"@types/morgan": "^1.9.9",
"@types/node": "^20.10.5",
"@types/validator": "^13.11.7",
"nodemon": "^3.0.2"
}
}
What am I doing wrong here?