fix: manual lint fixes

.eslintrc.js

@@ -14,7 +14,7 @@ module.exports = {
   env: {
     es6: true,
     node: true,
-    jest: true
+    jest: true,
   },
   parserOptions: {
     ecmaVersion: 2020, // Allows for the parsing of modern ECMAScript features
@@ -24,17 +24,17 @@ module.exports = {
       jsx: true, // Allows for the parsing of JSX
       arrowFunctions: true,
       modules: true,
-      module: true
-    }
+      module: true,
+    },
   },
   plugins: ['@typescript-eslint', 'spellcheck', 'import', 'jsdoc', 'prefer-arrow'],
   settings: {
     'import/parsers': {
-      '@typescript-eslint/parser': ['.ts', '.tsx']
+      '@typescript-eslint/parser': ['.ts', '.tsx'],
     },
     'import/resolver': {
-      typescript: {}
-    }
+      typescript: {},
+    },
   },
   rules: {
     '@typescript-eslint/no-var-requires': 'off',
@@ -47,16 +47,16 @@ module.exports = {
       {
         selector: 'ForInStatement',
         message:
-          'for..in loops iterate over the entire prototype chain, which is virtually never what you want. Use Object.{keys,values,entries}, and iterate over the resulting array.'
+          'for..in loops iterate over the entire prototype chain, which is virtually never what you want. Use Object.{keys,values,entries}, and iterate over the resulting array.',
       },
       {
         selector: 'LabeledStatement',
-        message: 'Labels are a form of GOTO; using them makes code confusing and hard to maintain and understand.'
+        message: 'Labels are a form of GOTO; using them makes code confusing and hard to maintain and understand.',
       },
       {
         selector: 'WithStatement',
-        message: '`with` is disallowed in strict mode because it makes code impossible to predict and optimize.'
-      }
+        message: '`with` is disallowed in strict mode because it makes code impossible to predict and optimize.',
+      },
     ],
 
     quotes: ['error', 'single', { avoidEscape: true, allowTemplateLiterals: true }],
@@ -67,19 +67,26 @@ module.exports = {
         skipWords: dictionary,
         skipIfMatch: [
           'http://[^s]*',
-          '^[-\\w]+/[-\\w\\.]+$' //For MIME Types
+          '^[-\\w]+/[-\\w\\.]+$', //For MIME Types
         ],
-        minLength: 4
-      }
-    ]
+        minLength: 4,
+      },
+    ],
   },
   overrides: [
+    {
+      files: ['cypress/*', 'packages/amplify-e2e-tests/src/cypress/uibuilder/uibuilder-spec.js'],
+      plugins: ['cypress'],
+      env: {
+        'cypress/globals': true,
+      },
+    },
     {
       // Add files to this list that shouldn't be spellchecked
       files: ['.eslintrc.js'],
       rules: {
-        'spellcheck/spell-checker': 'off'
-      }
+        'spellcheck/spell-checker': 'off',
+      },
     },
     {
       // edit rules here to modify test linting
@@ -90,18 +97,18 @@ module.exports = {
         '@typescript-eslint/unbound-method': 'off',
         'jest/unbound-method': 'error',
         '@typescript-eslint/no-explicit-any': 'off',
-        'spellcheck/spell-checker': 'off'
-      }
+        'spellcheck/spell-checker': 'off',
+      },
     },
     {
       // disable spell checker in tests
       files: ['**/__tests__/**', '*.test.ts', 'packages/amplify-e2e-*/**', '**/test/**'],
       plugins: ['jest'],
       extends: ['plugin:jest/recommended'],
       rules: {
-        'spellcheck/spell-checker': 'off'
-      }
-    }
+        'spellcheck/spell-checker': 'off',
+      },
+    },
   ],
   // Files / paths / globs that shouldn't be linted at all
   // (note that only .js, .jsx, .ts, and .tsx files are linted in the first place)
@@ -185,6 +192,6 @@ module.exports = {
     // Ignore CHANGELOG.md files
     '/packages/*/CHANGELOG.md',
     // Ignore autogenerated API files
-    '/packages/*/API.md'
-  ]
+    '/packages/*/API.md',
+  ],
 };

package.json

@@ -108,6 +108,7 @@
     "eslint-config-airbnb": "^18.0.1",
     "eslint-config-prettier": "^8.5.0",
     "eslint-import-resolver-typescript": "^2.0.0",
+    "eslint-plugin-cypress": "^2.12.1",
     "eslint-plugin-import": "^2.22.1",
     "eslint-plugin-jest": "^26.1.1",
     "eslint-plugin-jsdoc": "^37.9.6",

packages/amplify-app/src/xcodeHelpers.js

@@ -175,7 +175,7 @@ async function addAmplifyFiles() {
   }
   const rootDir = path.resolve(projectDir, '..', '..');
   const project = xcode.project(projectDir);
-  return new Promise((resolve, reject) => {
+  await new Promise((resolve, reject) => {
     project.parse(error => {
       if (error) {
         reject(error);

packages/amplify-appsync-simulator/src/__tests__/server/subscription/websocket-server/server.test.ts

@@ -92,7 +92,7 @@ describe('WebsocketSubscriptionServer', () => {
   });
 
   describe('Connect', () => {
-    it('should close connection when the protocol is not graphql-ws', done => {
+    it('should close connection when the protocol is not graphql-ws', (done) => {
       const client = new WS(`ws://localhost:${serverPort}${REALTIME_SUBSCRIPTION_PATH}`, 'something');
       client.addEventListener('close', event => {
         expect(event.code).toEqual(1002);

packages/amplify-appsync-simulator/src/resolvers/unit-resolver.ts

@@ -45,7 +45,7 @@ export class AppSyncUnitResolver extends AppSyncBaseResolver {
       }
     }
     if (requestPayload && requestPayload.version !== '2018-05-29' && result === null) {
-      return;
+      return undefined;
     }
 
     const { result: responseTemplateResult, errors: responseTemplateErrors } = responseMappingTemplate.render(

packages/amplify-appsync-simulator/src/schema/appsync-scalars/index.ts

@@ -5,8 +5,7 @@ import * as net from 'net';
 
 import { GraphQLDate, GraphQLTime, GraphQLDateTime } from 'graphql-iso-date';
 
-const EMAIL_ADDRESS_REGEX =
-  /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/;
+const EMAIL_ADDRESS_REGEX = /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/;
 
 // Some of the custom scalars in this file are inspired by the graphql-scalars npm module.
 

packages/amplify-appsync-simulator/src/schema/directives/aws-subscribe.ts

@@ -40,6 +40,7 @@ const getSubscriberForMutation = (schema: GraphQLSchema, subscriptions: GraphQLF
           return subscriptionName;
         }
       }
+      return undefined;
     })
     .filter(Boolean);
 };

packages/amplify-appsync-simulator/src/schema/index.ts

@@ -43,6 +43,7 @@ export function generateResolvers(
           } catch (e) {
             context.appsyncErrors.push(e);
           }
+          return undefined;
         },
         ...(typeName === 'Subscription'
           ? {

packages/amplify-appsync-simulator/src/server/operations.ts

@@ -18,14 +18,13 @@ const STATIC_ROOT = join(__dirname, '..', '..', 'public');
 export class OperationServer {
   private _app: express.Application;
 
-  constructor(
-    private config: AppSyncSimulatorServerConfig,
-    private simulatorContext: AmplifyAppSyncSimulator
-  ) {
+  constructor(private config: AppSyncSimulatorServerConfig, private simulatorContext: AmplifyAppSyncSimulator) {
     this._app = express();
     this._app.use(express.json({ limit: MAX_BODY_SIZE }));
     this._app.use(cors());
+    /* eslint-disable @typescript-eslint/no-misused-promises */
     this._app.post('/graphql', this.handleRequest);
+    /* eslint-enable */
     this._app.get('/api-config', this.handleAPIInfoRequest);
     this._app.use('/', express.static(STATIC_ROOT));
   }
@@ -75,17 +74,20 @@ export class OperationServer {
       };
       switch (getOperationType(doc, operationName)) {
         case 'query':
-        case 'mutation':
+        case 'mutation': {
           const gqlResult = await runQueryOrMutation(this.simulatorContext.schema, doc, variables, operationName, context);
           return response.send(gqlResult);
-
-        case 'subscription':
+        }
+        case 'subscription': {
           const subscriptionResult = await runSubscription(this.simulatorContext.schema, doc, variables, operationName, context);
           if ((subscriptionResult as ExecutionResult).errors) {
             return response.send(subscriptionResult);
           }
-          throw new Error(`Subscription request is only supported in realtime url. Send requests to ${REALTIME_SUBSCRIPTION_PATH} path instead`);
+          throw new Error(
+            `Subscription request is only supported in realtime url. Send requests to ${REALTIME_SUBSCRIPTION_PATH} path instead`,
+          );
           break;
+        }
 
         default:
           throw new Error(`unknown operation`);

packages/amplify-appsync-simulator/src/server/subscription/websocket-server/server.ts

@@ -49,7 +49,9 @@ export type WebsocketSubscriptionServerOptions = {
 };
 
 const DEFAULT_OPTIONS: Partial<WebsocketSubscriptionServerOptions> = {
-  onConnectHandler: async () => {},
+  onConnectHandler: async () => {
+    // empty
+  },
   keepAlive: KEEP_ALIVE_TIMEOUT,
   connectionTimeoutDuration: CONNECTION_TIMEOUT_DURATION,
 };
@@ -75,11 +77,13 @@ export class WebsocketSubscriptionServer {
     if (!this.webSocketServer) {
       throw new Error('No server is attached');
     }
+    /* eslint-disable @typescript-eslint/no-misused-promises */
     this.webSocketServer.on('connection', this.onSocketConnection);
   }
 
   stop() {
     this.webSocketServer?.off('connection', this.onSocketConnection);
+    /* eslint-enable */
     this.connections?.forEach(connection => {
       this.onClose(connection);
     });
@@ -186,6 +190,7 @@ export class WebsocketSubscriptionServer {
     } catch (e) {
       this.sendError(connectionContext, '', { errors: [{ message: e.message }] });
     }
+    return undefined;
   };
 
   private sendMessage = (connectionContext: ConnectionContext, subscriptionId: string, type: MESSAGE_TYPES, data: any): void => {
@@ -261,8 +266,10 @@ export class WebsocketSubscriptionServer {
 
   private attachAsyncIterator = async (connectionContext: ConnectionContext, sub: WebsocketSubscription): Promise<void> => {
     const { asyncIterator, id } = sub;
-    while (true) {
-      const { value, done } = await asyncIterator.next();
+    let done = false;
+    while (!done) {
+      const { value, done: doneResult } = await asyncIterator.next();
+      done = doneResult;
       if (done) {
         break;
       }

packages/amplify-appsync-simulator/src/velocity/util/transform/dynamodb-filter.ts

@@ -34,7 +34,7 @@ export function generateFilterExpression(filter: any, prefix = null, parent = nu
 
       switch (name) {
         case 'or':
-        case 'and':
+        case 'and': {
           const JOINER = name === 'or' ? 'OR' : 'AND';
           if (Array.isArray(value)) {
             subExpr = scopeExpression(
@@ -47,11 +47,13 @@ export function generateFilterExpression(filter: any, prefix = null, parent = nu
             subExpr = generateFilterExpression(value, [prefix, name].filter(val => val !== null).join('_'));
           }
           break;
-        case 'not':
+        }
+        case 'not': {
           subExpr = scopeExpression(generateFilterExpression(value, [prefix, name].filter(val => val !== null).join('_')));
           subExpr.expressions.unshift('NOT');
           break;
-        case 'between':
+        }
+        case 'between': {
           const expr1 = createExpressionValueName(parent, 'between_1', prefix);
           const expr2 = createExpressionValueName(parent, 'between_2', prefix);
           const exprName = createExpressionName(parent);
@@ -66,45 +68,50 @@ export function generateFilterExpression(filter: any, prefix = null, parent = nu
             expressionValues: exprValues,
           };
           break;
+        }
         case 'ne':
         case 'eq':
         case 'gt':
         case 'ge':
         case 'lt':
-        case 'le':
+        case 'le': {
           const operator = OPERATOR_MAP[name];
           subExpr = {
             expressions: [`${fieldName} ${operator} ${filedValueName}`],
             expressionNames: createExpressionName(parent),
             expressionValues: createExpressionValue(parent, name, value, prefix),
           };
           break;
-        case 'attributeExists':
+        }
+        case 'attributeExists': {
           const existsName = value === true ? 'attribute_exists' : 'attribute_not_exists';
           subExpr = {
             expressions: [`${existsName}(${fieldName})`],
             expressionNames: createExpressionName(parent),
             expressionValues: createExpressionValue(parent, name, value, prefix),
           };
           break;
+        }
         case 'contains':
         case 'notContains':
-        case 'beginsWith':
+        case 'beginsWith': {
           const functionName = FUNCTION_MAP[name];
           subExpr = {
             expressions: [`${functionName}(${fieldName}, ${filedValueName})`],
             expressionNames: createExpressionName(parent),
             expressionValues: createExpressionValue(parent, name, value, prefix),
           };
           break;
-        case 'in':
-            const operatorName = OPERATOR_MAP[name];
-            subExpr = {
-              expressions: [`${operatorName}(${filedValueName}, ${fieldName})`],
-              expressionNames: createExpressionName(parent),
-              expressionValues: createExpressionValue(parent, name, value, prefix),
-            };
-            break;
+        }
+        case 'in': {
+          const operatorName = OPERATOR_MAP[name];
+          subExpr = {
+            expressions: [`${operatorName}(${filedValueName}, ${fieldName})`],
+            expressionNames: createExpressionName(parent),
+            expressionValues: createExpressionValue(parent, name, value, prefix),
+          };
+          break;
+        }
         default:
           subExpr = scopeExpression(generateFilterExpression(value, prefix, name));
       }