fix(index.d.ts): Fix return type of Model#aggregate()

Type 'Promise<unknown>' is not assignable to type 'Promise<Document>'.
Automattic · Dec 8, 2020 · 067e3a2 · 067e3a2
1 parent 0e2058d
commit 067e3a2
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/index.d.ts b/index.d.ts
@@ -578,8 +578,8 @@ declare module "mongoose" {
   interface Model<T extends Document> extends NodeJS.EventEmitter {
     new(doc?: any): T;
 
-    aggregate<R>(pipeline?: any[]): Aggregate<Array<R>>;
-    aggregate<R>(pipeline: any[], cb: Function): Promise<Array<R>>;
+    aggregate<R = any>(pipeline?: any[]): Aggregate<Array<R>>;
+    aggregate<R = any>(pipeline: any[], cb: Function): Promise<Array<R>>;
 
     /** Base Mongoose instance the model uses. */
     base: typeof mongoose;

diff --git a/test/typescript/models.ts b/test/typescript/models.ts
@@ -21,3 +21,5 @@ const ExpiresSchema = new Schema({
     expires: 3600,
   },
 });
+
+const aggregated: Promise<Document> = Test.aggregate([]).then(res => res[0]);