Function customizeGraphQlErrorFields

customizeGraphQlErrorFields(
    errorDataMapper?: MosaicErrorMapper,
    isDev?: boolean,
): (
    error: GraphQLError,
    originalError?: Error | null,
) => { code?: string; extensions?: Dict<unknown>; message?: string }
Customize the default GraphQL errors to nicer ones
Parameters
- OptionalerrorDataMapper: MosaicErrorMapper
  A mosaic error mapper that maps known error types to user friendly ones.
- OptionalisDev: boolean
  innerError will be included inside of the extensions if this is true. False by default.
Returns (
error: GraphQLError,
originalError?: Error | null,
) => { code?: string; extensions?: Dict<unknown>; message?: string }
A function that can be used in the GraphQL error handler for nice error messages