https://github.com/ptheofan/nestjs-subscription-filter-issue

https://github.com/ptheofan/nestjs-subscription-filter-issue

Last synced: about 2 months ago
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• Host: GitHub
• URL: https://github.com/ptheofan/nestjs-subscription-filter-issue
• Owner: ptheofan
• Created: 2023-10-21T07:30:04.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2023-10-21T14:08:20.000Z (about 1 year ago)
• Last Synced: 2023-10-22T08:26:37.464Z (about 1 year ago)
• Language: TypeScript
• Size: 108 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
Code First Subscriptions in nestjs

==================================

1. In the resolver function add the `@Subscription` decorator

```ts

  @Subscription(() => Vote, {

  nullable: true,

  filter: (payload, variables: { id: string }) => {

    console.log('FILTER:', payload, variables);

    return payload.voteUpdate.id === variables.id;

  },

})

```

in the function add the `@Args` you want the schema to have which will become available via the `variables`.

```ts

  voteUpdate(@Args('id') id: string) {

    return pubSub.asyncIterator('voteUpdate');

  }

```

Get rid of the warning for unused variables by adding the following comment

```ts

// eslint-disable-next-line @typescript-eslint/no-unused-vars

```

The final correct code looks like this

```ts

@Subscription(() => Vote, {

  nullable: true,

  filter: (payload, variables: { id: string }) => {

    console.log('FILTER:', payload, variables);

    return payload.voteUpdate.id === variables.id;

  },

})

// eslint-disable-next-line @typescript-eslint/no-unused-vars

voteUpdate(@Args('id') id: string): AsyncIterator {

  return pubSub.asyncIterator('voteUpdate');

}

```