I had an issue with my find() method.
@Get(':id')
async findOne(@Param('id', ParseIntPipe) id: number) {
return await this.repository.findOne(id);
}
Then I found out that I have to add where condition or replace it with findOneBy():
return await this.repository.findOne({ where: { id } });
or
return await this.repository.findOneBy({ id });
However, I still got the same error and I thought that it didn't work:
Error: You must provide selection conditions in order to find a single row.
Then I stopped start:dev script and ran npm run start:dev again. After that the error disappeared. Shouldn't this mode automatically reload everything when I make code changes or why do I have to stop and restart the server for the error to disappear?
I am using nestjs version: 9.2.0 with Ubuntu 20.04. Data is loaded from a MySQL DB via Docker.
Here are my dependencies from package.json:
"scripts": {
"build": "nest build",
"format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
"start": "nest start",
"start:dev": "nest start --watch",
"start:debug": "nest start --debug --watch",
"start:prod": "node dist/main",
"lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
"test": "jest",
"test:watch": "jest --watch",
"test:cov": "jest --coverage",
"test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
"test:e2e": "jest --config ./test/jest-e2e.json"
},
"dependencies": {
"@nestjs/common": "^9.0.0",
"@nestjs/config": "^2.3.1",
"@nestjs/core": "^9.0.0",
"@nestjs/mapped-types": "^1.2.2",
"@nestjs/platform-express": "^9.0.0",
"@nestjs/typeorm": "^9.0.1",
"class-transformer": "^0.5.1",
"class-validator": "^0.14.0",
"mysql": "^2.18.1",
"pg": "^8.10.0",
"reflect-metadata": "^0.1.13",
"rxjs": "^7.2.0",
"typeorm": "^0.3.12"
},
"devDependencies": {
"@nestjs/cli": "^9.0.0",
"@nestjs/schematics": "^9.0.0",
"@nestjs/testing": "^9.0.0",
"@types/express": "^4.17.13",
"@types/jest": "29.2.4",
"@types/node": "18.11.18",
"@types/supertest": "^2.0.11",
"@typescript-eslint/eslint-plugin": "^5.0.0",
"@typescript-eslint/parser": "^5.0.0",
"eslint": "^8.0.1",
"eslint-config-prettier": "^8.3.0",
"eslint-plugin-prettier": "^4.0.0",
"jest": "29.3.1",
"prettier": "^2.3.2",
"source-map-support": "^0.5.20",
"supertest": "^6.1.3",
"ts-jest": "29.0.3",
"ts-loader": "^9.2.3",
"ts-node": "^10.0.0",
"tsconfig-paths": "4.1.1",
"typescript": "^4.7.4"
},
Update: The problem exists with other changes as well. I have changed more code and NestJS does not notice it.
I have added an Expection and had to restart the server to see the changes:
@Get(':id')
async findOne(@Param('id', ParseIntPipe) id: number) {
const event = await this.repository.findOneBy({ id });
if (!event) {
throw new NotFoundException();
}
return event;
}
Update 2: "npm list" output:
├── @nestjs/cli@9.3.0
├── @nestjs/common@9.3.9
├── @nestjs/config@2.3.1
├── @nestjs/core@9.3.9
├── @nestjs/mapped-types@1.2.2
├── @nestjs/platform-express@9.3.9
├── @nestjs/schematics@9.0.4
├── @nestjs/testing@9.3.9
├── @nestjs/typeorm@9.0.1
├── @types/express@4.17.17
├── @types/jest@29.2.4
├── @types/node@18.11.18
├── @types/supertest@2.0.12
├── @typescript-eslint/eslint-plugin@5.54.1
├── @typescript-eslint/parser@5.54.1
├── class-transformer@0.5.1
├── class-validator@0.14.0
├── eslint-config-prettier@8.7.0
├── eslint-plugin-prettier@4.2.1
├── eslint@8.36.0
├── jest@29.3.1
├── mysql@2.18.1
├── pg@8.10.0
├── prettier@2.8.4
├── reflect-metadata@0.1.13
├── rxjs@7.8.0
├── source-map-support@0.5.21
├── supertest@6.3.3
├── ts-jest@29.0.3
├── ts-loader@9.4.2
├── ts-node@10.9.1
├── tsconfig-paths@4.1.1
├── typeorm@0.3.12
└── typescript@4.9.5
PS: Deleting the dist folder did not help.
