@directus/api/dist/services/graphql/types/bigint.js

Directus is a real-time API and App dashboard for managing SQL database content

import { GraphQLScalarType, Kind } from 'graphql';
// minimum and maximum int64 values database vendors use for big integer
const MIN_BIG_INT = -9223372036854775808n;
const MAX_BIG_INT = 9223372036854775807n;
export const GraphQLBigInt = new GraphQLScalarType({
    name: 'GraphQLBigInt',
    description: 'BigInt value',
    serialize(value) {
        if (!value)
            return value;
        if (typeof value === 'string')
            return value;
        if (typeof value !== 'number') {
            throw new Error('Value must be a Number');
        }
        return value.toString();
    },
    parseValue(value) {
        if (typeof value !== 'string') {
            throw new Error('Value must be a String');
        }
        return parseNumberValue(value);
    },
    parseLiteral(ast) {
        if (ast.kind !== Kind.STRING) {
            throw new Error('Value must be a String');
        }
        return parseNumberValue(ast.value);
    },
});
function parseNumberValue(input) {
    // Attempt to parse the input as a regular integer
    const intValue = Number(input);
    if (isNaN(intValue)) {
        throw new Error('Invalid GraphQLBigInt');
    }
    if (!Number.isSafeInteger(intValue)) {
        // If the input is not a safe integer, its a big int, so return it as string,
        // because currently string is the best way to handle big int due to knex limitations and JSON.stringify not able to serialise bigInt
        const bigIntInput = BigInt(input);
        if (bigIntInput < MIN_BIG_INT || bigIntInput > MAX_BIG_INT) {
            throw new Error('Invalid GraphQLBigInt');
        }
        return input;
    }
    return intValue;
}