@graphql-mesh/fusion-composition/cjs/transforms.js

Basic composition utility for Fusion spec

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createTypeReplaceTransform = createTypeReplaceTransform;
exports.createExtendTransform = createExtendTransform;
const tslib_1 = require("tslib");
const graphql_1 = require("graphql");
const utils_1 = require("@graphql-tools/utils");
const utils_js_1 = require("./transforms/utils.js");
function createTypeReplaceTransform(replacerFn) {
    return function typeReplaceTransform(schema) {
        return (0, utils_1.mapSchema)(schema, {
            [utils_1.MapperKind.FIELD]: (fieldConfig, fieldName, typeName) => {
                const newTypeName = replacerFn(typeName, fieldName, fieldConfig.type);
                if (typeof newTypeName === 'string' && newTypeName !== fieldConfig.type.toString()) {
                    const newType = (0, graphql_1.typeFromAST)(schema, (0, graphql_1.parseType)(newTypeName));
                    if (!newType) {
                        throw new utils_js_1.TransformValidationError(`No type found for ${newTypeName} in the schema, use a type instance instead such as GraphQLString from 'graphql'`);
                    }
                    return [fieldName, { ...fieldConfig, type: newType }];
                }
                if ((0, graphql_1.isOutputType)(newTypeName)) {
                    return [fieldName, { ...fieldConfig, type: newTypeName }];
                }
                return undefined;
            },
        });
    };
}
function createExtendTransform(typeDefs) {
    const typeDefsDoc = typeof typeDefs === 'string' ? (0, graphql_1.parse)(typeDefs, { noLocation: true }) : typeDefs;
    return function extendTransform(schema) {
        return (0, graphql_1.extendSchema)(schema, typeDefsDoc, {
            assumeValid: true,
            assumeValidSDL: true,
        });
    };
}
tslib_1.__exportStar(require("./transforms/filter-schema.js"), exports);
tslib_1.__exportStar(require("./transforms/naming-convention.js"), exports);
tslib_1.__exportStar(require("./transforms/prefix.js"), exports);
tslib_1.__exportStar(require("./transforms/rename.js"), exports);
tslib_1.__exportStar(require("./transforms/encapsulate.js"), exports);
tslib_1.__exportStar(require("./transforms/prune.js"), exports);
tslib_1.__exportStar(require("./transforms/hoist-field.js"), exports);
tslib_1.__exportStar(require("./transforms/federation.js"), exports);