GraphQL Scalars

__Note! This package is currently under development. Check back for updates.__

Import directly into your resolver function and declare each scalar in your schema. See below for an example.

There is one scalar type missing from this package; not every project will require it. To convert strings into MongoDB ObjectIds, please visit this gist.

``



import { merge } from 'lodash';

import { gql } from 'apollo-server-express';

import { makeExecutableSchema } from 'graphql-tools';

import CustomScalars from 'gql-scalars';



export default makeExecutableSchema({

    resolvers: merge({}, CustomScalars),

    typeDefs: gql

scalar Date
scalar Email
scalar Phone
scalar Postal
scalar Time

});

Time

Accepts strings formatted as HH:MM like the standard HTML5 input element. This scalar automatically prepends leading zeros and validates time values (i.e. 24-hour maximum).

Date

Accepts strings that follow ISO Date formatting standards. This scalar will output YYYY-MM-DD regardless the input formatting. It strips timestamps and converts the date object to a simple string.

Email

Accepts all valid email formats. This includes those with multiple top-level domains. Currently, this scalar does not support domain-specific email address validation.

Phone

Accepts all popular North American phone number formatting, including those prefixed with a country code (ie +1). This scalar serializes a prettified string in the following format: (xxx) xxx-xxxx.

Postal

Accepts a Canadian postal code with or without spaces (ie. L1L 1L1). This scalar serializes the postal code as uppercase.