graphql/envelop/plugins/use-error-handler

[giscus[bot]]

graphql/envelop/plugins/use-error-handler

GraphQL Envelop Documentation

https://the-guild.dev/graphql/envelop/plugins/use-error-handler

[paul-vd]

The maskErrorFn seems to be maskError and the return type of MaskError is Error, but the err argument type is unknown causing type missmatches

[paul-vd]

The isGraphQLError helper has an incorrect typing, currently it would type the error as Error instead of GraphQLError

export declare function isGraphQLError(error: unknown): error is Error & {
    originalError?: Error;
};

So if you would want to create another error check to see if it has extensions errors, this would cause the typing to fail because extensions are not defined on the Error type, for example

function isGraphQLErrorExtensions(error: unknown): error is GraphQLError & {
    extensions: NonNullable<GraphQLError['extensions']>;
  } {
    return (
      isGraphQLError(error) &&
      error.extensions !== null &&
      error.extensions !== undefined &&
      typeof error?.extensions === 'object'
    );
  }

[paul-vd]

This also causes the path on the error object to not exist