graphql-mocks/resolver-map/layer.js

Tools for setting up graphql test resolvers

'use strict';

function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
var pack = require('../pack/pack.js');
var embedPackOptionsWrapper = require('../pack/utils/embed-pack-options-wrapper.js');
var ramda = require('ramda');
var highlight = require('../highlight/highlight.js');
require('graphql');
var fromResolverMap = require('../highlight/highlighter/from-resolver-map.js');
var walk = require('../highlight/utils/walk.js');
var getResolver = require('./get-resolver.js');
var setResolver = require('./set-resolver.js');
var applyWrappers = require('../resolver/apply-wrappers.js');
function layer(partials, options) {
  options = _objectSpread({
    replace: false,
    wrappers: []
  }, options);
  const layerMiddlewares = partials.map(resolverMap => previous => {
    return ramda.mergeDeepRight(previous, resolverMap);
  });
  const middleware = async function layerMiddleware(resolverMap, packOptions) {
    const {
      graphqlSchema
    } = packOptions.dependencies;
    if (!graphqlSchema) throw new Error('`graphqlSchema` is a required dependency');
    const packed = await pack.pack({}, layerMiddlewares, packOptions);
    const layeredResolverMap = packed.resolverMap;
    const resolverMapReferences = highlight.hi(graphqlSchema).include(fromResolverMap.fromResolverMap(layeredResolverMap)).references;
    // walk references from the resulting layeredResolverMap and apply them to
    // the final resolverMap for this middlware with any provided wrappers
    await walk.walk(graphqlSchema, resolverMapReferences, async function ({
      reference,
      type,
      field
    }) {
      var _options, _options$wrappers;
      let resolver = getResolver.getResolver(layeredResolverMap, reference);
      if (resolver && (_options = options) !== null && _options !== void 0 && (_options$wrappers = _options.wrappers) !== null && _options$wrappers !== void 0 && _options$wrappers.length) {
        var _options$wrappers2, _options2;
        // if there is at least one wrapper, the embedPackOptionsWrapper should also
        // be included in order to better manage the context and ensure that the `pack`
        // property is included
        const wrappers = [embedPackOptionsWrapper.embedPackOptionsWrapper, ...((_options$wrappers2 = (_options2 = options) === null || _options2 === void 0 ? void 0 : _options2.wrappers) !== null && _options$wrappers2 !== void 0 ? _options$wrappers2 : [])];
        resolver = await applyWrappers.applyWrappers(resolver, wrappers, {
          schema: graphqlSchema,
          resolverMap,
          packOptions,
          type: type,
          field: field
        });
      }
      if (resolver) {
        var _options3;
        setResolver.setResolver(resolverMap, reference, resolver, {
          replace: (_options3 = options) === null || _options3 === void 0 ? void 0 : _options3.replace
        });
      }
    });
    return resolverMap;
  };
  return middleware;
}
exports.layer = layer;
//# sourceMappingURL=layer.js.map