@dossierhq/graphql/lib/vendor/GraphQLJsonScalar.js

A library for creating GraphQL servers with Dossier.

/// <reference types="./GraphQLJsonScalar.d.ts" />
// Source: https://github.com/taion/graphql-type-json
// License: MIT
// Vendored since these was a clash with different graphql version when running tests (at least under vitest)
// Converted to TypeScript
import { GraphQLScalarType } from 'graphql';
import { Kind, print } from 'graphql/language/index.js';
function ensureObject(value) {
    if (typeof value !== 'object' || value === null || Array.isArray(value)) {
        throw new TypeError(`JSONObject cannot represent non-object value: ${typeof value}`);
    }
    return value;
}
function parseObject(typeName, ast, variables) {
    const value = Object.create(null);
    ast.fields.forEach((field) => {
        value[field.name.value] = parseLiteral(typeName, field.value, variables);
    });
    return value;
}
function parseLiteral(typeName, ast, variables) {
    switch (ast.kind) {
        case Kind.STRING:
        case Kind.BOOLEAN:
            return ast.value;
        case Kind.INT:
        case Kind.FLOAT:
            return parseFloat(ast.value);
        case Kind.OBJECT:
            return parseObject(typeName, ast, variables);
        case Kind.LIST:
            return ast.values.map((n) => parseLiteral(typeName, n, variables));
        case Kind.NULL:
            return null;
        case Kind.VARIABLE:
            return variables ? variables[ast.name.value] : undefined;
        default:
            throw new TypeError(`${typeName} cannot represent value: ${print(ast)}`);
    }
}
export const GraphQLJSONObject = new GraphQLScalarType({
    name: 'JSONObject',
    description: 'The `JSONObject` scalar type represents JSON objects as specified by [ECMA-404](http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-404.pdf).',
    specifiedByURL: 'http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-404.pdf',
    serialize: ensureObject,
    parseValue: ensureObject,
    parseLiteral: (ast, variables) => {
        if (ast.kind !== Kind.OBJECT) {
            throw new TypeError(`JSONObject cannot represent non-object value: ${print(ast)}`);
        }
        return parseObject('JSONObject', ast, variables);
    },
});
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