CODEWITHSUNDEEP
typescriptdependency-injectionnestjs
deanWombourne
deanWombourne

Reputation: 38475

how do I get a repository instance from nestjs standalone app

I have a nestjs app, and am writing some stand alone tasks to go along with it.

The documentation for standalone apps shows how to get instances of services i.e.

const app = await NestFactory.createApplicationContext(AppModule);
const tasksService = app.get(TasksService);

but doesn't show how to get a repository if I wanted to read/write to the db.

I've tried the obvious:

const repo = app.get(Repository<User>);

but this throws the compiler error "Value of type 'typeof Repository' is not callable. Did you mean to include 'new'?ts(2348)".

The examples online (and in the nestjs docs) use @InjectRepository but my standalone task doesn't have any which can use that, sadly.

How do I get a repository instance I can use to read/write to the db in a standalone nestjs script?

Upvotes: 0

Views: 1898

Answers (2)

deanWombourne
deanWombourne

Reputation: 38475

FYI: Another answer to my question would be 'what exactly are you trying to do?' because all I wanted to do was query/insert entities, and in nestjs you can do that directly from the entity type itself.

i.e.

instead of

const repo = app.get(getRepositoryToken(User));

...

const users = repo.find()

I could just do

const users = User.find()

which saves some gnarly setup code, and removes some imports.

Upvotes: 0

Micael Levi
Micael Levi

Reputation: 6685

app.get receives a token of the provider. Then, if you're trying to get some custom repository from @nestjs/typeorm, just retrieve its token using getRepositoryToken(User)

thus,

const repo = app.get(getRepositoryToken(User));

should work

Upvotes: 4

Related Questions