CODEWITHSUNDEEP
typescriptnext.jsgraphqlapollo-server
Atharv Kurdukar
Atharv Kurdukar

Reputation: 135

GraphQL Nexus asNexusMethod showing type error

I implemented the DateTime as a nexus method as shown in the docs in my Next.js project.

// types/DateTime.ts
import { GraphQLDate, GraphQLDateTime, GraphQLTime } from 'graphql-iso-date';
import { asNexusMethod } from 'nexus';

export const GQLDate = asNexusMethod(GraphQLDate, 'date');
export const GQLTime = asNexusMethod(GraphQLTime, 'time');
export const GQLDateTime = asNexusMethod(GraphQLDateTime, 'datetime');

The file is also included in the types in GraphQL schema

// Other imports
import * as types from './types';

export const schema = makeSchema({
  types: types,
  // ...
});

However, I am getting following TypeScript error:

Argument of type 'GraphQLScalarType' is not assignable to parameter of type 'GraphQLNamedType'.
  Type 'GraphQLScalarType' is missing the following properties from type 'GraphQLScalarType<unknown, unknown>': specifiedByURL, [Symbol.toStringTag]ts(2345)

How do I resolve this error?

Upvotes: 0

Views: 706

Answers (1)

Atharv Kurdukar
Atharv Kurdukar

Reputation: 135

I used graphql-scalars and it worked perfectly, as shown here.

import { DateTimeResolver } from 'graphql-scalars';

const DateTime = asNexusMethod(DateTimeResolver, 'datetime');

export const schema = makeSchema({
  types: [
    DateTime,
    /** Queries, mutations, and other scalar types here */
  ],
  /** more config options here */
})

// Inside type file
t.nonNull.datetime('createdAt');

If you are using any linting tool, just make sure that you hit the GraphQL API endpoint after adding the type. Otherwise, it keeps showing the type error in the IDE.

Upvotes: 3

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