I am using graphql with generated types and struggling with how to convert them to the type I need to pass it to my data service calls.

@graphql-codegen has given me an args type of

export type QueryOrdersArgs = {

  ids: Array<Maybe<Scalars['ID']>>;

};

(I don't really understand why its generated as a Maybe type, as the graphql schema enforces that I only query with a parameter of an array of ids (strings))

In my resolver, I need to call into a service which takes an array of strings. Everything works as expected (with @ts-ignore) but now I need to fix up my types.

const { orderIds } = args;

const result = getOrder(orderIds);

I have a codesandbox with just the types here https://codesandbox.io/s/typescript-playground-export-forked-3fpx9?file=/index.ts

export type Maybe<T> = T | null;

export type Scalars = {

  ID: string;

  String: string;

  Boolean: boolean;

  Int: number;

  Float: number;

  _FieldSet: any;

};



let ids: Array<Maybe<Scalars["ID"]>>;



export const getOrders = (orderIds: Array<string>) => {

  orderIds.map((x) => console.log(x));

};



getOrders(ids);

I currently get the error - "TS2345: Argument of type 'Maybe[]' is not assignable to parameter of type 'string[]'."

Any help greatly appreciated