fix

src/index.ts

@@ -73,19 +73,29 @@ export class OssBase implements OssBaseOperation {
    * @param options 如果文件本身存在，则复制原有的meta的内容
    * @returns
    */
-  async putObject(objectName: string, data: Buffer | string | Object, metaData: ItemBucketMetadata = {}, options?: { check?: boolean }) {
+  async putObject(
+    objectName: string,
+    data: Buffer | string | Object,
+    metaData: ItemBucketMetadata = {},
+    opts?: { check?: boolean; isStream?: boolean; size?: number },
+  ) {
     let putData: Buffer | string;
-    let size: number;
-    if (typeof data === 'object') {
-      putData = JSON.stringify(data);
-      size = putData.length;
-    } else if (typeof data === 'string') {
-      putData = data;
-      size = putData.length;
+    let size: number = opts?.size;
+    const isStream = opts?.isStream;
+    if (!isStream) {
+      if (data instanceof Object) {
+        putData = JSON.stringify(data);
+        size = putData.length;
+      } else if (typeof data === 'string') {
+        putData = data;
+        size = putData.length;
+      } else {
+        putData = data;
+      }
     } else {
-      putData = data;
+      putData = data as any;
     }
-    if (options?.check) {
+    if (opts?.check) {
       const obj = await this.statObject(objectName, true);
       if (obj) {
         metaData = {