graphql-scalars/esm/scalars/json/utils.js

A collection of scalar types not included in base GraphQL.

import { Kind, print } from 'graphql';
import { createGraphQLError } from '../../error.js';
export function identity(value) {
    return value;
}
export function ensureObject(value, ast) {
    if (typeof value !== 'object' || value === null || Array.isArray(value)) {
        throw createGraphQLError(`JSONObject cannot represent non-object value: ${value}`, ast
            ? {
                nodes: ast,
            }
            : undefined);
    }
    return value;
}
export function parseObject(ast, variables) {
    if (ast.kind !== Kind.OBJECT) {
        throw createGraphQLError(`JSONObject cannot represent non-object value: ${print(ast)}`, ast
            ? {
                nodes: ast,
            }
            : undefined);
    }
    const value = Object.create(null);
    ast.fields.forEach(field => {
        // eslint-disable-next-line no-use-before-define
        value[field.name.value] = parseLiteral(field.value, variables);
    });
    return value;
}
export function parseLiteral(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(ast, variables);
        case Kind.LIST:
            return ast.values.map(n => parseLiteral(n, variables));
        case Kind.NULL:
            return null;
        case Kind.VARIABLE: {
            const name = ast.name.value;
            return variables ? variables[name] : undefined;
        }
    }
}