chore(eslint): fix errors

Author: LeoAnesi

.eslintrc.js

@@ -9,7 +9,6 @@ module.exports = {
     'plugin:@typescript-eslint/eslint-recommended',
     'plugin:@typescript-eslint/recommended',
     'prettier',
-    'prettier/@typescript-eslint',
   ],
   root: true,
   env: {
@@ -22,5 +21,10 @@ module.exports = {
     '@typescript-eslint/no-explicit-any': 'off',
     '@typescript-eslint/no-use-before-define': 'off',
     '@typescript-eslint/no-non-null-assertion': 'off',
+    '@typescript-eslint/ban-types': ['error', {
+      'types': {
+        'Function': false,
+      }
+    }],
   },
 };

lib/common/typeorm.decorators.ts

@@ -11,7 +11,7 @@ import {
 export const InjectRepository = (
   entity: EntityClassOrSchema,
   connection: string = DEFAULT_CONNECTION_NAME,
-) => Inject(getRepositoryToken(entity, connection));
+): ReturnType<typeof Inject> => Inject(getRepositoryToken(entity, connection));
 
 export const InjectConnection: (
   connection?: Connection | ConnectionOptions | string,

lib/common/typeorm.utils.ts

@@ -25,7 +25,7 @@ const logger = new Logger('TypeOrmModule');
 export function getRepositoryToken(
   entity: EntityClassOrSchema,
   connection: Connection | ConnectionOptions | string = DEFAULT_CONNECTION_NAME,
-) {
+): Function | string {
   if (entity === null || entity === undefined) {
     throw new CircularDependencyException('@InjectRepository()');
   }
@@ -54,7 +54,7 @@ export function getRepositoryToken(
  * @param {Function} This parameter can either be an Entity or Repository
  * @returns {string} The Repository injection token
  */
-export function getCustomRepositoryToken(repository: Function) {
+export function getCustomRepositoryToken(repository: Function): string {
   if (repository === null || repository === undefined) {
     throw new CircularDependencyException('@InjectRepository()');
   }
@@ -157,8 +157,8 @@ export function handleRetry(
     );
 }
 
-export function getConnectionName(options: ConnectionOptions) {
+export function getConnectionName(options: ConnectionOptions): string {
   return options && options.name ? options.name : DEFAULT_CONNECTION_NAME;
 }
 
-export const generateString = () => uuid();
+export const generateString = (): string => uuid();

lib/entities-metadata.storage.ts

@@ -9,7 +9,7 @@ export class EntitiesMetadataStorage {
   static addEntitiesByConnection(
     connection: ConnectionToken,
     entities: EntityClassOrSchema[],
-  ) {
+  ): void {
     const connectionToken =
       typeof connection === 'string' ? connection : connection.name;
     if (!connectionToken) {

lib/typeorm-core.module.ts

@@ -109,7 +109,7 @@ export class TypeOrmCoreModule implements OnApplicationShutdown {
     };
   }
 
-  async onApplicationShutdown() {
+  async onApplicationShutdown(): Promise<void> {
     if (this.options.keepConnectionAlive) {
       return;
     }