From 0eafe059f236b748b00fa30845c697d41dec15d5 Mon Sep 17 00:00:00 2001
From: Chau Tran <nartc7789@gmail.com>
Date: Wed, 10 Nov 2021 15:10:28 -0600
Subject: [PATCH] feat(pojos): support File as a metadata constructor

---
 packages/pojos/src/lib/create-metadata-map.ts    | 4 ++++
 packages/pojos/src/lib/utils/instantiate.util.ts | 8 ++++++++
 2 files changed, 12 insertions(+)

diff --git a/packages/pojos/src/lib/create-metadata-map.ts b/packages/pojos/src/lib/create-metadata-map.ts
index 6e662a93c..853bff0c5 100644
--- a/packages/pojos/src/lib/create-metadata-map.ts
+++ b/packages/pojos/src/lib/create-metadata-map.ts
@@ -21,6 +21,7 @@ export function createMetadataMap<TModel extends Dictionary<TModel> = any>(
       | DateConstructor
       | NumberConstructor
       | BooleanConstructor
+      | typeof File.prototype.constructor
       | string
       | null;
   }
@@ -34,6 +35,7 @@ export function createMetadataMap<TModel extends Dictionary<TModel> = any>(
       | DateConstructor
       | NumberConstructor
       | BooleanConstructor
+      | typeof File.prototype.constructor
       | string
       | null
       | false;
@@ -49,6 +51,7 @@ export function createMetadataMap<TModel extends Dictionary<TModel> = any>(
           | DateConstructor
           | NumberConstructor
           | BooleanConstructor
+          | typeof File.prototype.constructor
           | string
           | null;
       },
@@ -58,6 +61,7 @@ export function createMetadataMap<TModel extends Dictionary<TModel> = any>(
       | DateConstructor
       | NumberConstructor
       | BooleanConstructor
+      | typeof File.prototype.constructor
       | string
       | null
       | false;
diff --git a/packages/pojos/src/lib/utils/instantiate.util.ts b/packages/pojos/src/lib/utils/instantiate.util.ts
index 16d234bc0..c339112c4 100644
--- a/packages/pojos/src/lib/utils/instantiate.util.ts
+++ b/packages/pojos/src/lib/utils/instantiate.util.ts
@@ -4,6 +4,7 @@ import {
   isDateConstructor,
   isDefined,
   isEmpty,
+  isFileConstructor,
   isPrimitiveConstructor,
   setMutate,
 } from '@automapper/core';
@@ -34,6 +35,7 @@ export function instantiate<TModel extends Dictionary<TModel>>(
       setMutate(obj as Record<string, unknown>, key, value);
       continue;
     }
+
     if (isDateConstructor(metaResult)) {
       const value = isDefined(valueAtKey)
         ? new Date(valueAtKey as number)
@@ -42,6 +44,12 @@ export function instantiate<TModel extends Dictionary<TModel>>(
       continue;
     }
 
+    if (isFileConstructor(metaResult)) {
+      const value = isDefined(valueAtKey) ? valueAtKey : undefined;
+      setMutate(obj as Record<string, unknown>, key, value);
+      continue;
+    }
+
     if (typeof metaResult !== 'string') {
       continue;
     }