feat: Add support for uploading a file directly to the file provider from the client (#12224)

* feat: Add support for uploading a file directly to the file provider from the client

* fix: Add missing types and add a couple of module tests

* fix: Allow nested routes, add test for it

packages/modules/providers/file-s3/src/services/s3-file.ts

@@ -1,6 +1,7 @@
 import {
   DeleteObjectCommand,
   GetObjectCommand,
+  ObjectCannedACL,
   PutObjectCommand,
   S3Client,
   S3ClientConfigType,
@@ -36,6 +37,8 @@ interface S3FileServiceConfig {
   additionalClientConfig?: Record<string, any>
 }
 
+const DEFAULT_UPLOAD_EXPIRATION_DURATION_SECONDS = 60 * 60
+
 export class S3FileService extends AbstractFileProviderService {
   static identifier = "s3"
   protected config_: S3FileServiceConfig
@@ -175,4 +178,41 @@ export class S3FileService extends AbstractFileProviderService {
       expiresIn: this.config_.downloadFileDuration,
     })
   }
+
+  // Note: Some providers (eg. AWS S3) allows IAM policies to further restrict what can be uploaded.
+  async getPresignedUploadUrl(
+    fileData: FileTypes.ProviderGetPresignedUploadUrlDTO
+  ): Promise<FileTypes.ProviderFileResultDTO> {
+    if (!fileData?.filename) {
+      throw new MedusaError(
+        MedusaError.Types.INVALID_DATA,
+        `No filename provided`
+      )
+    }
+
+    const fileKey = `${this.config_.prefix}${fileData.filename}`
+
+    let acl: ObjectCannedACL | undefined
+    if (fileData.access) {
+      acl = fileData.access === "public" ? "public-read" : "private"
+    }
+
+    // Using content-type, acl, etc. doesn't work with all providers, and some simply ignore it.
+    const command = new PutObjectCommand({
+      Bucket: this.config_.bucket,
+      ContentType: fileData.mimeType,
+      ACL: acl,
+      Key: fileKey,
+    })
+
+    const signedUrl = await getSignedUrl(this.client_, command, {
+      expiresIn:
+        fileData.expiresIn ?? DEFAULT_UPLOAD_EXPIRATION_DURATION_SECONDS,
+    })
+
+    return {
+      url: signedUrl,
+      key: fileKey,
+    }
+  }
 }