graphql-validity

<!doctype html> <html lang="en"> <head> <title>Code coverage report for graphql-validity/src/schema-wrapper.ts</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../../prettify.css" /> <link rel="stylesheet" href="../../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../../index.html">All files</a> / <a href="index.html">graphql-validity/src</a> schema-wrapper.ts </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 97.06% Statements 99/102 </div> <div class='fl pad1y space-right2'> 88.73% Branches 63/71 </div> <div class='fl pad1y space-right2'> 100% Functions 14/14 </div> <div class='fl pad1y space-right2'> 96.94% Lines 95/98 </div> </div> Press n or j to go to the next uncovered block, b, p or k for the previous block. </div> <div 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    15x 15x 16x       16x    </td><td class="text"><pre class="prettyprint lang-js">/*! * The MIT License (MIT) * * Copyright (c) 2017 Vlad Martynenko <vladimir.martynenko.work@gmail.com> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */   /** * Contains configuration options for the main function */ import { FieldValidationObject, onUnhandledError, ValidityConfig } from "./helpers"; import { defaultProfilingResultHandler, storeProfilingInfo } from "./profiling"; import { getValidationResults, getValidators } from "./validation";   import hapiMiddleware from './hapi-middleware'; import expressMiddleware from './express-middleware'; import koaMiddleware from './koa-middleware';   // Indicates whether schema entity was already processed export const Processed = Symbol();   let profilingResultHandler: any = { handler: defaultProfilingResultHandler };   // Set of middleware functions for express, koa and hapi servers export const graphQLValidityHapiMiddleware = hapiMiddleware(profilingResultHandler); export const graphQLValidityExpressMiddleware = expressMiddleware(profilingResultHandler); export const graphQLValidityKoaMiddleware = koaMiddleware(profilingResultHandler);   /** * Top level wrapper for the GraphQL schema entities * which replaces resolve function if any found * * @param entity - GraphQL object entity * @param {ValidityConfig} config - setup options for the wrapper function */ export function wrapResolvers(entity: any, config?: ValidityConfig) { if (!config) { config = { wrapErrors: false, enableProfiling: false, unhandledErrorWrapper: onUnhandledError } } else { config.unhandledErrorWrapper = config.unhandledErrorWrapper || onUnhandledError;   Eif (config.enableProfiling) { profilingResultHandler.handler = config.profilingResultHandler ? config.profilingResultHandler : profilingResultHandler.handler; } } if (entity.constructor.name === 'GraphQLSchema') { wrapSchema(entity, config); } else if (entity.constructor.name === 'GraphQLObjectType') { wrapType(entity, config); } else { wrapField(entity, config); } }   /** * Internal function which performs resolvers wrapping with common async function * * @param field - GraphQL entity field * @param {ValidityConfig} config - setup options for the wrapper function */ function wrapField( field: any, config: ValidityConfig ) { const resolve = field.resolve; if (field[Processed] || !resolve) { return; }   field[Processed] = true;   field.resolve = validateFieldResolution(field, config, resolve); }   /** * Creates new field resolver for a given graphql field node * * @param field - field node which gets resolver replaced * @param {ValidityConfig} config - config options for validation * @param {Function} resolver - original resolver function * * @returns {(...args: any[]) => (Promise<any> | any)} - new resolver function */ function validateFieldResolution( field: any, config: ValidityConfig, resolver: Function ) { return function (...args: any[]) { const requestContext: FieldValidationObject = { fieldName: field.name };   if (config.enableProfiling) { // profiling start time requestContext.pst = Date.now(); }   for (let i = 0, s = args.length; i < s; i++) { let arg = args[i]; Eif (arg && arg.rootValue && arg.rootValue.__graphQLValidity) { arg.rootValue.__graphQLValidity.config = config; requestContext.validity = arg.rootValue.__graphQLValidity; }   Eif (arg && arg.parentType) { requestContext.astPath = arg.path; requestContext.parentTypeName = arg.parentType; } }   if (requestContext.validity) { let validationResults = getValidationResults(requestContext.validity); let validators = getValidators( field, String(requestContext.parentTypeName), requestContext.validity );   const result = processValidators(validators, validationResults, args); if (result && result.then) { return new Promise(( resolve: Function, reject: Function ) => { result.then(() => { if (config.enableProfiling) { // validation end time requestContext.vet = Date.now(); }   const result = resolver.apply(this, args);   if (config.enableProfiling) { if (result && result.then) { result.then(() => { processProfiling(requestContext); }) } else { processProfiling(requestContext); } }   resolve(result); }).catch(e => { reject(e); }); }); } else { if (config.enableProfiling) { // validation end time requestContext.vet = Date.now(); } } }   const result = resolver.apply(this, args);   if (config.enableProfiling) { if (result && result.then) { result.then(() => { processProfiling(requestContext); }); } else { processProfiling(requestContext); } }   return result; }; }   /** * Creates profiling data using process context for a field * * @param {FieldValidationObject} requestContext - data gathered during field validation and execution */ function processProfiling(requestContext: FieldValidationObject) { // execution end time requestContext.eet = Date.now();   try { if (requestContext.validity) { const validation = <number>requestContext.vet - <number>requestContext.pst; const execution = <number>requestContext.eet - <number>requestContext.vet; storeProfilingInfo(requestContext.validity, requestContext.astPath, { name: requestContext.fieldName, validation, execution, fieldsExecution: 0, totalExecution: validation + execution }); } } catch (err) { console.error('Profiling failed!', err); } }   /** * Validator function executor * * @param {Function[]} validators - array of validation functions * @param {any[]} validationResults - static array of validation results * @param {any[]} args - original resolver arguments * * @returns {Promise<void>} - return promise if at least one validator was returning promise */ function processValidators( validators: Function[], validationResults: any[], args: any[] ) { let promises = [];   for (let i = 0, s = validators.length; i < s; i++) { let validator = validators[i]; let validationResult = validator.apply(this, args) || []; if (validationResult.then) { promises.push(validationResult); } else { validationResult = Array.isArray(validationResult) ? validationResult : [validationResult];   Array.prototype.push.apply( validationResults, validationResult ); } }   if (promises.length) { return handleValidationPromises(promises, validationResults); } }   /** * Synchronises validator promises execution * * @param {any[]} promises - array of validator promises * @param {any[]} validationResults - static array of validation results * * @returns {Promise<void>} - general promise for all validator promises */ async function handleValidationPromises( promises: any[], validationResults: any[] ) { for (let promise of promises) { let validationResult = (await promise) || []; validationResult = Array.isArray(validationResult) ? validationResult : [validationResult];   Array.prototype.push.apply( validationResults, validationResult ); } }   /** * Wraps each field of the GraphQLObjectType entity * * @param {GraphQLObjectType} type - GraphQLObject schema entity * @param {ValidityConfig} config - setup options for the wrapper function */ function wrapType(type: any, config: ValidityConfig) { if (type[Processed] || !type.getFields) { return; }   const fields = type.getFields(); for (const fieldName in fields) { Iif (!Object.hasOwnProperty.call(fields, fieldName)) { continue; }   wrapField(fields[fieldName], config); } }   /** * Wraps each GraphQLObjectType fields resolver for entire GraphQL Schema * * @param {GraphQLSchema} schema - schema object that must be wrapped * @param {ValidityConfig} config - setup options for the wrapper function */ function wrapSchema(schema: any, config: ValidityConfig) { const types = schema.getTypeMap(); for (const typeName in types) { Iif (!Object.hasOwnProperty.call(types, typeName)) { continue; }   wrapType(<any>types[typeName], config); } }</pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="https://istanbul.js.org/" target="_blank">istanbul</a> at Tue Jul 16 2019 13:01:47 GMT+0300 (EEST) </div> </div> <script src="../../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="../../sorter.js"></script> <script src="../../block-navigation.js"></script> </body> </html>