From fc89a2c2e01d3642a557c8fca4cd0068d35f8980 Mon Sep 17 00:00:00 2001
From: Raymond Feng <enjoyjava@gmail.com>
Date: Fri, 28 Sep 2018 11:52:09 -0700
Subject: [PATCH] fix(metadata): remove the default type to work around a TS
 bug

See https://github.com/Microsoft/TypeScript/issues/26985
---
 packages/authentication/src/keys.ts         | 3 ++-
 packages/metadata/src/types.ts              | 2 +-
 packages/repository-json-schema/src/keys.ts | 7 ++++---
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/packages/authentication/src/keys.ts b/packages/authentication/src/keys.ts
index 8c91ce52af03..6cb825dbfa9a 100644
--- a/packages/authentication/src/keys.ts
+++ b/packages/authentication/src/keys.ts
@@ -105,5 +105,6 @@ export namespace AuthenticationBindings {
  * The key used to store log-related via @loopback/metadata and reflection.
  */
 export const AUTHENTICATION_METADATA_KEY = MetadataAccessor.create<
-  AuthenticationMetadata
+  AuthenticationMetadata,
+  MethodDecorator
 >('authentication.operationsMetadata');
diff --git a/packages/metadata/src/types.ts b/packages/metadata/src/types.ts
index ce73a2353a7d..aa66d5f1235f 100644
--- a/packages/metadata/src/types.ts
+++ b/packages/metadata/src/types.ts
@@ -30,7 +30,7 @@ export class MetadataAccessor<T, D extends DecoratorType = DecoratorType> {
    * @typeparam T Type of the metadata value
    * @typeparam D Type of the decorator
    */
-  static create<T, D extends DecoratorType = DecoratorType>(key: string) {
+  static create<T, D extends DecoratorType>(key: string) {
     return new MetadataAccessor<T, D>(key);
   }
 }
diff --git a/packages/repository-json-schema/src/keys.ts b/packages/repository-json-schema/src/keys.ts
index 4ff2894c402d..9975efa1749c 100644
--- a/packages/repository-json-schema/src/keys.ts
+++ b/packages/repository-json-schema/src/keys.ts
@@ -9,6 +9,7 @@ import {JSONSchema6 as JSONSchema} from 'json-schema';
 /**
  * Metadata key used to set or retrieve repository JSON Schema
  */
-export const JSON_SCHEMA_KEY = MetadataAccessor.create<JSONSchema>(
-  'loopback:json-schema',
-);
+export const JSON_SCHEMA_KEY = MetadataAccessor.create<
+  JSONSchema,
+  ClassDecorator
+>('loopback:json-schema');