apollo-schema-extend/lib/ast/toDocumentNode.js

Extends your Apollo Server Express based graphql server with an external graphql source

"use strict";
var __rest = (this && this.__rest) || function (s, e) {
    var t = {};
    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
        t[p] = s[p];
    if (s != null && typeof Object.getOwnPropertySymbols === "function")
        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
                t[p[i]] = s[p[i]];
        }
    return t;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.toDocumentNode = void 0;
const graphql_1 = require("graphql");
const typeGuards_1 = require("./typeGuards");
const variables_1 = require("./variables");
const toDocumentNode = ({ operation, fragments }) => {
    const usedFragments = getUsedFragments(operation, fragments);
    const definitions = [(0, variables_1.cleanVariables)(operation, usedFragments), ...usedFragments];
    return {
        kind: 'Document',
        definitions,
    };
};
exports.toDocumentNode = toDocumentNode;
const getUsedFragments = (operation, fragments) => {
    return getUsedFragmentNames(operation, fragments)
        .filter((fragmentName, index, self) => self.indexOf(fragmentName) === index && fragmentName in fragments)
        .map(name => fragments[name]);
};
const isFragmentSpread = (0, typeGuards_1.isNodeKind)(graphql_1.Kind.FRAGMENT_SPREAD);
const getUsedFragmentNames = (node, fragments) => {
    var _a, _b;
    return ((_b = (_a = node.selectionSet) === null || _a === void 0 ? void 0 : _a.selections.flatMap(selection => isFragmentSpread(selection)
        ? [selection.name.value, ...getUsedFragmentNamesFromFragment(selection.name.value, fragments)]
        : getUsedFragmentNames(selection, fragments))) !== null && _b !== void 0 ? _b : []);
};
const getUsedFragmentNamesFromFragment = (fragmentName, fragments) => {
    const _a = fragments, _b = fragmentName, fragment = _a[_b], remaining = __rest(_a, [typeof _b === "symbol" ? _b : _b + ""]);
    return fragment ? getUsedFragmentNames(fragment, remaining) : [];
};