Auto-relay not working with nest's typegraphql implementation

[dan-klasson]

According to the documentation this library has two goals:

• Automate the pagination between two entities that share a relationship in TypeORM (more ORM support coming soon)
• Make it easy and boilerplate-free to implement your own pagination logic, by taking care of all the type generating and exposing easy to use APIs

I'm trying to just implement pagination on my user model without any relationships. Is that even possible? This is what I've tried:

@Resolver(of => UserModel)
export class User {
    constructor(
        @InjectRepository(UserModel)
        private readonly userRepository: Repository<UserModel>,
    ) {
    }

    @RelayedQuery(() => UserModel)
    async users(
        @RelayLimitOffset() {limit, offset}: RelayLimitOffsetArgs
    ): Promise<[UserModel[], number]> {
        return this.userRepository.findAndCount({ 
            skip: offset,
            take: limit
        })
    }

And the stacktrace I'm getting:

"Error: Cannot return null for non-nullable field Query.users.",
"    at completeValue (/Users/danklasson/Code/analyze-jestsj/node_modules/graphql/execution/execute.js:560:13)",
"    at completeValueCatchingError (/Users/danklasson/Code/analyze-jestsj/node_modules/graphql/execution/execute.js:495:19)",
"    at resolveField (/Users/danklasson/Code/analyze-jestsj/node_modules/graphql/execution/execute.js:435:10)",
"    at executeFields (/Users/danklasson/Code/analyze-jestsj/node_modules/graphql/execution/execute.js:275:18)",
"    at executeOperation (/Users/danklasson/Code/analyze-jestsj/node_modules/graphql/execution/execute.js:219:122)",
"    at executeImpl (/Users/danklasson/Code/analyze-jestsj/node_modules/graphql/execution/execute.js:104:14)",
"    at Object.execute (/Users/danklasson/Code/analyze-jestsj/node_modules/graphql/execution/execute.js:64:35)",
"    at /Users/danklasson/Code/analyze-jestsj/node_modules/apollo-server-core/dist/requestPipeline.js:246:46",
"    at Generator.next (<anonymous>)",
"    at /Users/danklasson/Code/analyze-jestsj/node_modules/apollo-server-core/dist/requestPipeline.js:8:71"

It's taken straight from the documentation. But I had to switch the order of the type declaration of the return Promise to get it to compile. What am I missing here?

[Superd22]

Hello,

Yes it is entirely possible. To answer both your questions : 1/ the orders of the type declaration changed with #20, I forgot to update the docs to reflect that, mea culpa. 2/ The provided example should indeed work and is a usecase we have internally. Could you link to a minimal repro repo ?

[dan-klasson]

@Superd22 Here's a minimal reproducible repo:

https://github.com/dan-klasson/project-autorelay

Run npm i, npm run-script build and npm start.

[Superd22]

Hey @dan-klasson thanks for taking the time to make a repro repo. It seems to be an issue with using nests js' integration with typegraphql rather than vanilla.

I'll look into it further

[kodeine]

hello, was this fixed?

[Superd22]

I'll try and have a look at this in the next few days :)

[dan-klasson]

@Superd22 Did you get a chance to look at this? Do you have any pointers you can share?

[dzcpy]

Any updates?

[dan-klasson]

@kodeine and @dzcpy

just use this: https://github.com/doug-martin/nestjs-query

[dzcpy]

@dan-klasson Thanks for your reply, nestjs-query seems good. But it doesn't have a mikro-orm adapter which is what I'm currently using..