Simple upload allows you to call the PutObject operation to upload a single object that is smaller than 5 GB in size. Simple upload is suitable for scenarios where an object can be uploaded by sending a single HTTP request.

Prerequisites

A bucket is created. For more information, see Create buckets.

Usage notes

  • Object size

    You can upload an object up to 5 GB in size by using simple upload. If you want to upload an object that is larger than 5 GB in size, use multipart upload. For more information, see Multipart upload.

  • Naming conventions for objects
    • The name of an object must be encoded in UTF-8.
    • The name must be 1 to 1,023 characters in length.
    • The name cannot start with a forward slash (/) or a backslash (\).
  • Security and authorization

    Object Storage Service (OSS) allows you to configure the access control list (ACL) for buckets and objects. This way, third-party users who are not granted the required permissions cannot upload data to your bucket. For more information, see Overview.

    OSS provides account-level authorization. This allows you to grant permissions to third-party users to upload objects to OSS buckets. For more information, see Authorized third-party upload.

  • Upload objects to a bucket for which the OSS-HDFS service is enabled

    To ensure the availability of the OSS-HDFS service or prevent data loss, do not upload objects by using methods that are not supported by the OSS-HDFS service to the .dlsdata/ directory in which OSS-HDFS data is stored in a bucket for which the OSS-HDFS service is enabled.

  • Prevent existing objects from being overwritten by uploaded objects that have the same names
    By default, OSS overwrites existing objects with the uploaded objects that have the same names. You can use the following methods to prevent the existing objects from being unexpectedly overwritten:
    • Enable versioning for the bucket.

      If you enable versioning for a bucket, objects that are overwritten in the bucket are saved as previous versions. You can recover the previous versions of the objects at any time. For more information, see Overview.

    • Include the x-oss-forbid-overwrite parameter in the upload request

      You can add the x-oss-forbid-overwrite parameter to the header of the upload request and set this parameter to true. This way, if you upload an object that has the same name as an existing object, the object cannot be uploaded and OSS returns the FileAlreadyExists error. If you do not add this parameter to the request header or if you set this parameter to false, the uploaded object that has the same name as the existing object overwrites the existing object.

  • Performance tuning of object upload

    If you upload a large number of objects and the names of the objects contain sequential prefixes such as timestamps and letters, multiple object indexes may be stored in a single partition. If you send a large number of requests to query these objects, latency may increase. If you upload a large number of objects, we recommend that you use random prefixes instead of sequential prefixes to specify object names. For more information, see OSS performance and scalability best practices.

Use the OSS console

Note In Alibaba Finance Cloud, OSS cannot be accessed over the Internet. Therefore, objects cannot be uploaded in the OSS console. If you want to upload objects, you must use ossbrowser, OSS SDKs, or ossutil.
  1. Log on to the OSS console.
  2. In the left-side navigation pane, click Buckets. On the Buckets page, click the name of the bucket to which you want to upload objects.
  3. In the left-side navigation pane, click the Files tab. On the page that appears, click Upload.
  4. In the Upload panel, configure the parameters described in the following table.
    1. The following table describes the basic settings.
      Parameter Description
      Upload To Set the path in which to store an object after the object is uploaded to the bucket.
      • Current: Objects are uploaded to the current directory.
      • Specified: Objects are uploaded to the specified directory. You must enter the directory name. If the directory whose name you entered does not exist, OSS automatically creates the directory and uploads the object to the directory.
        The directory must meet the following naming conventions:
        • The name can contain only UTF-8 characters. The name must be 1 to 254 characters in length.
        • The name cannot start with a forward slash (/) or backslash (\).
        • The name cannot contain consecutive forward slashes (/).
        • The name of the directory cannot be .. .
      File ACL Set the access control list (ACL) for the object.
      • Inherited from Bucket: The ACL of the object is the same as that of the bucket.
      • Private: Only the object owner or authorized users can read and write the objects to upload. Other users, including anonymous users, cannot access the objects without authorization. We recommend that you set the File ACL parameter to this value.
      • Public Read: Only the owner or authorized users of this bucket can write the objects to upload. Other users, including anonymous users, can only read the objects. If you set the File ACL parameter to this value, the objects may be unexpectedly accessed, which results in out-of-control costs.
      • Public Read/Write: All users, including anonymous users, can read and write the objects to upload. If you set the File ACL parameter to public read/write, the objects may be unexpectedly accessed, which results in out-of-control costs. If a user uploads prohibited data or information, your legitimate interests and rights may be infringed. Therefore, we recommend that you do not set the File ACL parameter to public read/write except in special cases.

      For more information about object ACLs, see Object ACL.

      Upload Acceleration After transfer acceleration is enabled for the bucket that contains the object, you can turn on Upload Acceleration if you want to accelerate the upload of the object.

      For more information about transfer acceleration, see Transfer acceleration.

      Files to Upload Select the files or directories that you want to upload.

      You can click Select Files to select a local file or click Select Folders to select a directory. You can also drag the required local file or directory to the Files to Upload section.

      If you select an unnecessary object, click Remove in the Actions column that corresponds to the object to remove the object.

      Notice
      • When you upload an object that has the same name as an existing object in OSS to an unversioned bucket, the existing object is overwritten.
      • When you upload an object that has the same name as an existing object in OSS to a versioned bucket, the existing object becomes a previous version, and the uploaded object becomes the latest version.
    2. Optional: Configure advanced settings such as Storage Class and Encryption Method.
      Parameter Description
      Storage Class Set the storage class of the object.
      • Inherited from Bucket: The storage class of the object is the same as that of the bucket.
      • Standard: Standard is suitable for objects that are frequently accessed.
      • IA: Infrequent Access (IA) is suitable for objects that are less frequently accessed. On average, objects that are accessed less than once to twice a month fall into this category. IA objects have a minimum storage duration of 30 days. You are charged for data retrieval when you access these objects.
      • Archive: Archive is suitable for objects that are infrequently accessed. Archive objects have a minimum storage duration of 60 days. Before you can access an object of the Archive storage class, you must restore the object. The restoration takes about one minute, and data retrieval fees are incurred during the restoration process.
      • Cold Archive: Cold Archive is suitable for long-term storage of backup objects and raw data. Cold Archive objects have a minimum storage duration of 180 days. Before you can access an object of the Cold Archive storage class, you must restore the object. The amount of time required to restore a Cold Archive object depends on the data size and the restore mode. You are charged for the data retrieval when you restore a Cold Archive object.

      For more information, see Overview.

      Encryption Method Configure server-end encryption method for an object.
      • Inherited from Bucket: The encryption method of the object is the same as that of the bucket.
      • OSS-Managed: Keys managed by OSS are used to encrypt objects in the bucket. OSS uses data keys to encrypt objects. In addition, OSS uses regularly rotated master keys to encrypt data keys.
      • KMS: The default CMK stored in Key Management Service (KMS) or the specified CMK ID is used to encrypt and decrypt data. Descriptions of CMK:
        • alias/acs/oss: The default customer master key (CMK) stored in KMS is used to encrypt different objects and decrypt the objects when the objects are downloaded.
        • CMK ID: The keys generated by a specified CMK are used to encrypt different objects and the specified CMK ID is recorded in the metadata of the encrypted object. Objects are decrypted when they are downloaded by users who are granted decryption permissions. Before you specify a CMK ID, you must create a normal key or an external key in the same region as the bucket in the KMS console.
      • Encryption algorithm:Only AES-256 is supported.

      For more information about object ACLs, see Object ACL.

      User Metadata Add the descriptive information for the object. You can add multiple pieces of user metadata as custom headers. However, the total size of the user metadata cannot exceed 8 KB. When you add user metadata, you must prefix parameters with x-oss-meta- and specify a value such as x-oss-meta-location:hangzhou for the parameters.
    3. Click Upload.
      You can view the upload progress of objects on the Task List tab.

Use ossbrowser

You can use ossbrowser to perform the same bucket-level operations that you can perform in the OSS console. You can follow the on-screen instructions in ossbrowser to perform simple upload. For more information about how to use ossbrowser, see Use ossbrowser.

Use OSS SDKs

The following code provides examples on how to perform simple upload by using OSS SDKs for common programming languages. For more information about how to perform simple upload by using OSS SDKs for other programming languages, see Overview.

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.PutObjectRequest;
import java.io.File;

public class Demo {

    public static void main(String[] args) throws Exception {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // The AccessKey pair of an Alibaba Cloud account has permissions on all API operations. Using these credentials to perform operations in OSS is a high-risk operation. We recommend that you use a RAM user to call API operations or perform routine O&M. To create a RAM user, log on to the RAM console. 
        String accessKeyId = "yourAccessKeyId";
        String accessKeySecret = "yourAccessKeySecret";
        // Specify the bucket name. Example: examplebucket. 
        String bucketName = "examplebucket";
        // Specify the full path of the object. The full path of the object cannot contain the bucket name. Example: exampledir/exampleobject.txt. 
        String objectName = "exampledir/exampleobject.txt";
        // Specify the full path of the local file. Example: D:\\localpath\\examplefile.txt. 
        // By default, if the path of the local file is not specified, the local file is uploaded from the path of the project to which the sample program belongs. 
        String filePath= "D:\\localpath\\examplefile.txt";

        // Create an OSSClient instance. 
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

        try {
            // Create a PutObjectRequest object.             
            PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, objectName, filePath);
            // Optional. Specify the storage class and ACL of the object. 
            // ObjectMetadata metadata = new ObjectMetadata();
            // metadata.setHeader(OSSHeaders.OSS_STORAGE_CLASS, StorageClass.Standard.toString());
            // metadata.setObjectAcl(CannedAccessControlList.Private);
            // putObjectRequest.setMetadata(metadata);

            // Upload the object. 
            ossClient.putObject(putObjectRequest);
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}            
<?php
if (is_file(__DIR__ . '/../autoload.php')) {
    require_once __DIR__ . '/../autoload.php';
}
if (is_file(__DIR__ . '/../vendor/autoload.php')) {
    require_once __DIR__ . '/../vendor/autoload.php';
}

use OSS\OssClient;
use OSS\Core\OssException;

// Security risks may arise if you use the AccessKey pair of an Alibaba Cloud account to log on to OSS because the account has permissions on all API operations. We recommend that you use a RAM user to call API operations or perform routine operations and maintenance. To create a RAM user, log on to the RAM console. 
$accessKeyId = "yourAccessKeyId";
$accessKeySecret = "yourAccessKeySecret";
// Set yourEndpoint to the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set yourEndpoint to https://oss-cn-hangzhou.aliyuncs.com. 
$endpoint = "yourEndpoint";
// Specify the name of the bucket to which you want to upload the object. Example: examplebucket. 
$bucket= "examplebucket";
// Specify the full path of the object. Example: exampledir/exampleobject.txt. The full path of the object cannot contain the bucket name. 
$object = "exampledir/exampleobject.txt";
// <yourLocalFile> consists of a local file path and a file name with an extension. Example: /users/local/myfile.txt. 
// Specify the full path of the local file to upload. Example: D:\\localpath\\examplefile.txt. By default, if you do not specify the local file, the local file is uploaded from the path of the project to which the sample program belongs. 
$filePath = "D:\\localpath\\examplefile.txt";

try{
    $ossClient = new OssClient($accessKeyId, $accessKeySecret, $endpoint);

    $ossClient->uploadFile($bucket, $object, $filePath);
} catch(OssException $e) {
    printf(__FUNCTION__ . ": FAILED\n");
    printf($e->getMessage() . "\n");
    return;
}
print(__FUNCTION__ . "OK" . "\n");
const OSS = require('ali-oss')
const path = require("path")

const client = new OSS({
  // Set yourregion to the endpoint of the region in which the bucket is located. For example, if your bucket is located in the China (Hangzhou) region, set yourregion to oss-cn-hangzhou. 
  region: 'yourregion',
  // Security risks may arise if you use the AccessKey pair of an Alibaba Cloud account to access OSS because the account has permissions on all API operations. We recommend that you use a RAM user to call API operations or perform routine O&M. To create a RAM user, log on to the RAM console. 
  accessKeyId: 'yourAccessKeyId',
  accessKeySecret: 'yourAccessKeySecret',
  // Specify the bucket name. For more information about the naming conventions for buckets, see Terms. 
  bucket: 'examplebucket',
});

const headers = {
  // Specify the caching behavior of the web page when the object is downloaded. 
  // 'Cache-Control': 'no-cache', 
  // Specify the name of the object when the object is downloaded. 
  // 'Content-Disposition': 'oss_download.txt', 
  // Specify the content encoding format of the object when the object is downloaded. 
  // 'Content-Encoding': 'UTF-8', 
  // Specify the expiration time. 
  // 'Expires': 'Wed, 08 Jul 2022 16:57:01 GMT', 
  // Specify the storage class of the object. 
  // 'x-oss-storage-class': 'Standard', 
  // Specify the access control list (ACL) of the object. 
  // 'x-oss-object-acl': 'private', 
  // Set tags for the object. You can set multiple tags at a time. 
  // 'x-oss-tagging': 'Tag1=1&Tag2=2', 
  // Specify whether the CopyObject operation overwrites the object with the same name. In this example, this parameter is set to true, which indicates that the object with the same name cannot be overwritten. 
  // 'x-oss-forbid-overwrite': 'true', 
};

async function put () {
  try {
    // Specify the full paths of the object and the local file. The full path of the OSS object cannot contain the bucket name. 
    // If the path of the local file is not specified, the local file is uploaded from the path of the project to which the sample program belongs. 
    const result = await client.put('exampleobject.txt', path.normalize('D:\\localpath\\examplefile.txt'));
    // const result = await client.put('exampleobject.txt', path.normalize('D:\\localpath\\examplefile.txt'), { headers });   
    console.log(result);
  } catch (e) {
    console.log(e);
  }
}

put(); 
# -*- coding: utf-8 -*-
import oss2
import os
# Security risks may arise if you use the AccessKey pair of an Alibaba Cloud account to access OSS, because the account has permissions on all API operations. We recommend that you use a RAM user to call API operations or perform routine O&M. To create a RAM user, log on to the RAM console. 
auth = oss2.Auth('yourAccessKeyId', 'yourAccessKeySecret')
# Set yourEndpoint to the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set yourEndpoint to https://oss-cn-hangzhou.aliyuncs.com. 
# Specify the name of the bucket. 
bucket = oss2.Bucket(auth, 'yourEndpoint', 'examplebucket')

# The file must be opened in binary mode. 
# Specify the full path of the local file. By default, if you do not specify the full path of a local file, the local file is uploaded from the path of the project to which the sample program belongs. 
with open('D:\\localpath\\examplefile.txt', 'rb') as fileobj:
    # Use the seek method to read data from byte 1000 of the file. The data is uploaded from byte 1000 to the last byte of the local file. 
    fileobj.seek(1000, os.SEEK_SET)
    # Use the tell method to obtain the current position. 
    current = fileobj.tell()
    # Specify the full path of the object. The full path of the object cannot contain the bucket name. 
    bucket.put_object('exampleobject.txt', fileobj)        
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>Document</title>
  </head>

  <body>
    <button id="upload">Upload An Object</button>
    <input id="file" type="file" />
    <! -- Import an SDK file -->
    <script
      type="text/javascript"
      src="https://gosspublic.alicdn.com/aliyun-oss-sdk-6.16.0.min.js"
    ></script>
    <script type="text/javascript">
      const client = new OSS({
        // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to oss-cn-hangzhou. 
        region: 'yourRegion',
        // Specify the temporary AccessKey pair obtained from Security Token Service (STS). The AccessKey pair consists of an AccessKey ID and an AccessKey secret. 
        accessKeyId: 'yourAccessKeyId',
        accessKeySecret: 'yourAccessKeySecret',
        // Specify the security token obtained from STS. 
        stsToken: 'yourSecurityToken',
        // Specify the bucket name. 
        bucket: 'examplebucket'
      });

      // Select the local file from the drop-down list. Example: <input type="file" id="file" />. 
      let data;
      // Create and specify the Blob data. 
      //const data = new Blob(['Hello OSS']);
      // Create and specify the content of the OSS buffer. 
      //const data = new OSS.Buffer(['Hello OSS']);

      const upload = document.getElementById("upload");

      const headers = {
        // Specify the caching behavior of the web page when the object is downloaded. 
        // 'Cache-Control': 'no-cache',
        // Specify the name of the object when the object is downloaded. 
        // 'Content-Disposition': 'oss_download.txt',
        // Specify the content encoding format of the object when the object is downloaded. 
        // 'Content-Encoding': 'UTF-8',
        // Specify the expiration time of the upload request. 
        // 'Expires': 'Wed, 08 Jul 2022 16:57:01 GMT',
        // Specify the storage class of the object. 
        // 'x-oss-storage-class': 'Standard',
        // Specify the access control list (ACL) of the object. 
        // 'x-oss-object-acl': 'private',
        // Configure tagging for the object. You can specify multiple tags for the object at a time. 
        // 'x-oss-tagging': 'Tag1=1&Tag2=2',
        // Specify whether the CopyObject operation is allowed to overwrite the existing object that has the same name as the object to copy. In this example, this parameter is set to true, which indicates that the operation is not allowed to overwrite the existing object that has the same name as the object to copy. 
        // 'x-oss-forbid-overwrite': 'true',
   };

       async function putObject (data) {
         try {
           // Specify the full path of the object. The full path cannot contain the bucket name. 
           // You can specify an object name such as exampleobject.txt to upload data to the current bucket. You can also specify a directory named exampledir/exampleobject.txt to upload data to the specified directory in the bucket. 
           // You can set the data to file objects, Blob data, or OSS buffers. 
          const result = await client.put(
            "exampledir/exampleobject.txt",
            data
            //{headers}
          );
          console.log(result);
        } catch (e) {
          console.log(e);
        }
      }

      upload.addEventListener("click", () => {
        data = document.getElementById("file").files[0];
        putObject(data);
      });
    </script>
  </body>
</html>
using Aliyun.OSS;

// Set yourEndpoint to the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set yourEndpoint to https://oss-cn-hangzhou.aliyuncs.com. 
var endpoint = "yourEndpoint";
// Security risks may arise if you use the AccessKey pair of an Alibaba Cloud account to access OSS because the account has permissions on all API operations. We recommend that you use a RAM user to call API operations or perform routine operations and maintenance. To create a RAM user, log on to the RAM console. 
var accessKeyId = "yourAccessKeyId";
var accessKeySecret = "yourAccessKeySecret";
// Specify the name of the bucket. 
var bucketName = "examplebucket";
// Specify the full path of the object. The full path cannot contain the bucket name. 
var objectName = "exampleobject.txt";
// Specify the full path of the local file that you want to upload. By default, if you do not specify the path of the local file, the local file is uploaded from the path of the project to which the sample program belongs. 
var localFilename = "D:\\localpath\\examplefile.txt";

// Create an OSSClient instance. 
var client = new OssClient(endpoint, accessKeyId, accessKeySecret);
try
{
    // Upload the file. 
    client.PutObject(bucketName, objectName, localFilename);
    Console.WriteLine("Put object succeeded");
}
catch (Exception ex)
{
    Console.WriteLine("Put object failed, {0}", ex.Message);
}
// Construct a request to upload the local file. 
// Specify the name of the bucket such as examplebucket, the full path of the object such as exampledir/exampleobject.txt, and the full path of the local file such as /storage/emulated/0/oss/examplefile.txt. 
// The full path of the object cannot contain the bucket name. 
PutObjectRequest put = new PutObjectRequest("examplebucket", "exampledir/exampleobject.txt", "/storage/emulated/0/oss/examplefile.txt");

// Configure object metadata. 
// ObjectMetadata metadata = new ObjectMetadata();
// Specify Content-Type. 
// metadata.setContentType("application/octet-stream"); 
// Specify the MD5 hash that is used for MD5 verification. 
// metadata.setContentMD5(BinaryUtil.calculateBase64Md5(uploadFilePath)); 
// Specify the access control list (ACL) of the object. The default value is private. 
// metadata.setHeader("x-oss-object-acl", "private");
// Specify the storage class of the object. By default, the storage class of the object is the same as the storage class of the bucket in which the object is stored. In this example, this parameter is set to Standard. 
// metadata.setHeader("x-oss-storage-class", "Standard");
// put.setMetadata(metadata);

try {
    PutObjectResult putResult = oss.putObject(put);

    Log.d("PutObject", "UploadSuccess");
    Log.d("ETag", putResult.getETag());
    Log.d("RequestId", putResult.getRequestId());
} catch (ClientException e) {
    // Handle client-side exceptions such as network errors. 
    e.printStackTrace();
} catch (ServiceException e) {
    // Handle server-side exceptions. 
    Log.e("RequestId", e.getRequestId());
    Log.e("ErrorCode", e.getErrorCode());
    Log.e("HostId", e.getHostId());
    Log.e("RawMessage", e.getRawMessage());
}
package main

import (
    "fmt"
    "os"
    "github.com/aliyun/aliyun-oss-go-sdk/oss"
)

func main() {
    // Create an OSSClient instance. 
    // Set yourEndpoint to the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set yourEndpoint to https://oss-cn-hangzhou.aliyuncs.com. Specify the endpoint based on your business requirements. 
    // Security risks may arise if you use the AccessKey pair of an Alibaba Cloud account to access OSS because the account has permissions on all API operations. We recommend that you use a RAM user to call API operations or perform routine operations and maintenance. To create a RAM user, log on to the RAM console. 
    client, err := oss.New("yourEndpoint", "yourAccessKeyId", "yourAccessKeySecret")    
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }

    // Specify the name of the bucket. Example: examplebucket. 
    bucket, err := client.Bucket("examplebucket")
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }

    // Specify the full path of the object. Example: exampledir/exampleobject.txt. Then, specify the full path of the local file. Example: D:\\localpath\\examplefile.txt. 
    err = bucket.PutObjectFromFile("exampledir/exampleobject.txt", "D:\\localpath\\examplefile.txt")
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }
}            
OSSPutObjectRequest * put = [OSSPutObjectRequest new];

// Specify the bucket name. Example: examplebucket. 
put.bucketName = @"examplebucket";
// Specify the full path of the object. Example: exampledir/exampleobject.txt. The full path of the object cannot contain the bucket name. 
put.objectKey = @"exampledir/exampleobject.txt";
put.uploadingFileURL = [NSURL fileURLWithPath:@"<filePath>"];
// put.uploadingData = <NSData *>; // Directly upload NSData. 

// (Optional) Specify the upload progress. 
put.uploadProgress = ^(int64_t bytesSent, int64_t totalByteSent, int64_t totalBytesExpectedToSend) {
    // Specify the number of bytes that are being uploaded, the total number of bytes that are uploaded, and the total number of bytes to be uploaded. 
    NSLog(@"%lld, %lld, %lld", bytesSent, totalByteSent, totalBytesExpectedToSend);
};
// Configure the optional fields. 
// put.contentType = @"application/octet-stream";
// Specify Content-MD5. 
// put.contentMd5 = @"eB5eJF1ptWaXm4bijSPyxw==";
// Specify the method that is used to encode the object content. 
// put.contentEncoding = @"identity";
// Specify the method that is used to display the object content. 
// put.contentDisposition = @"attachment";
// Configure the object metadata or HTTP headers for the upload. 
// NSMutableDictionary *meta = [NSMutableDictionary dictionary];
// Specify the object metadata. 
// [meta setObject:@"value" forKey:@"x-oss-meta-name1"];
// Set the access control list (ACL) of the object to private. 
// [meta setObject:@"private" forKey:@"x-oss-object-acl"];
// Set the storage class of the object to Standard. 
// [meta setObject:@"Standard" forKey:@"x-oss-storage-class"];
// Specify to overwrite the existing object that has the same name as the file to upload. 
// [meta setObject:@"true" forKey:@"x-oss-forbid-overwrite"];
// Specify tags for the destination object. You can specify multiple tags for the destination object at the same time. 
// [meta setObject:@"a:1" forKey:@"x-oss-tagging"];
// Specify the server-side encryption algorithm that is used to encrypt the destination object when Object Storage Service (OSS) creates the object. 
// [meta setObject:@"AES256" forKey:@"x-oss-server-side-encryption"];
// Specify the customer master key (CMK) that is managed by Key Management Service (KMS). This parameter takes effect only when x-oss-server-side-encryption is set to KMS. 
// [meta setObject:@"9468da86-3509-4f8d-a61e-6eab1eac****" forKey:@"x-oss-server-side-encryption-key-id"];
// put.objectMeta = meta;
OSSTask * putTask = [client putObject:put];

[putTask continueWithBlock:^id(OSSTask *task) {
    if (!task.error) {
        NSLog(@"upload object success!");
    } else {
        NSLog(@"upload object failed, error: %@" , task.error);
    }
    return nil;
}];
// [putTask waitUntilFinished];
// [put cancel];
#include <alibabacloud/oss/OssClient.h>
#include <fstream>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize the information about the account that is used to access OSS. */
    /* Security risks may arise if you use the AccessKey pair of an Alibaba Cloud account to access OSS, because the account has permissions on all API operations. We recommend that you use a RAM user to call API operations or perform routine O&M. To create a RAM user, log on to the RAM console. */
    std::string AccessKeyId = "yourAccessKeyId";
    std::string AccessKeySecret = "yourAccessKeySecret";
    /* Set yourEndpoint to the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set yourEndpoint to https://oss-cn-hangzhou.aliyuncs.com. */
    std::string Endpoint = "yourEndpoint";
    /* Specify the name of the bucket. Example: examplebucket. */
    std::string BucketName = "examplebucket";
    /* Specify the full path of the object. The full path cannot contain the bucket name. Example: exampledir/exampleobject.txt. */
    std::string ObjectName = "exampledir/exampleobject.txt";

    /* Initialize resources such as network resources. */
    InitializeSdk();

    ClientConfiguration conf;
    OssClient client(Endpoint, AccessKeyId, AccessKeySecret, conf);
    /* Specify the full path of the local file that you want to upload, for example, D:\\localpath\\examplefile.txt. In D:\\localpath\\examplefile.txt, localpath indicates the local path in which the file is stored. */
    std::shared_ptr<std::iostream> content = std::make_shared<std::fstream>("D:\\localpath\\examplefile.txt", std::ios::in | std::ios::binary);
    PutObjectRequest request(BucketName, ObjectName, content);

    /* (Optional) Set the ACL to private and the storage class to Standard for the object that you want to upload by referring to the following sample code. */
    //request.MetaData().addHeader("x-oss-object-acl", "private");
    //request.MetaData().addHeader("x-oss-storage-class", "Standard");

    auto outcome = client.PutObject(request);

    if (!outcome.isSuccess()) {
            /* Handle exceptions. */
            std::cout << "PutObject fail" <<
        ",code:" << outcome.error().Code() <<
        ",message:" << outcome.error().Message() <<
        ",requestId:" << outcome.error().RequestId() << std::endl;
            ShutdownSdk();
            return -1;
    }

    /* Release resources such as network resources. */
    ShutdownSdk();
        return 0;
}
#include "oss_api.h"
#include "aos_http_io.h"
const char *endpoint = "<yourEndpoint>";
const char *access_key_id = "<yourAccessKeyId>";
const char *access_key_secret = "<yourAccessKeySecret>";
const char *bucket_name = "<yourBucketName>";
const char *object_name = "<yourObjectName>";
const char *local_filename = "<yourLocalFilename>";
void init_options(oss_request_options_t *options)
{
    options->config = oss_config_create(options->pool);
    /* Use a char* string to initialize aos_string_t. */
    aos_str_set(&options->config->endpoint, endpoint);
    aos_str_set(&options->config->access_key_id, access_key_id);
    aos_str_set(&options->config->access_key_secret, access_key_secret);
    /* Specify whether to use CNAME. A value of 0 indicates that CNAME is not used. */
    options->config->is_cname = 0;
    /* Configure network parameters such as timeout periods. */
    options->ctl = aos_http_controller_create(options->pool, 0);
}
int main(int argc, char *argv[])
{
    /* Call the aos_http_io_initialize method in main() to initialize global resources such as networks and memory. */
    if (aos_http_io_initialize(NULL, 0) != AOSE_OK) {
        exit(1);
    }
    /* Create a memory pool to manage memory. aos_pool_t is equivalent to apr_pool_t. The code used to create a memory pool is included in the APR library. */
    aos_pool_t *pool;
    /* Create a memory pool. The second parameter is NULL. This value indicates that the pool does not inherit other memory pool. */
    aos_pool_create(&pool, NULL);
    /* Create and initialize options. This parameter includes global configuration information such as endpoint, access_key_id, access_key_secret, is_cname, and curl. */
    oss_request_options_t *oss_client_options;
    /* Allocate the memory resources in the memory pool to the options. */
    oss_client_options = oss_request_options_create(pool);
    /* Initialize oss_client_options. */
    init_options(oss_client_options);
    /* Initialize the parameters. */
    aos_string_t bucket;
    aos_string_t object;
    aos_string_t file;
    aos_table_t *headers = NULL;
    aos_table_t *resp_headers = NULL; 
    aos_status_t *resp_status = NULL; 
    aos_str_set(&bucket, bucket_name);
    aos_str_set(&object, object_name);
    aos_str_set(&file, local_filename);
    /* Upload the object. */
    resp_status = oss_put_object_from_file(oss_client_options, &bucket, &object, &file, headers, &resp_headers);
    /* Determine whether the object is uploaded. */
    if (aos_status_is_ok(resp_status)) {
        printf("put object from file succeeded\n");
    } else {
        printf("put object from file failed\n");
    }
    /* Release the memory pool, which releases memory resources allocated for the request. */
    aos_pool_destroy(pool);
    /* Release the allocated global resources. */
    aos_http_io_deinitialize();
    return 0;
}
require 'aliyun/oss'

client = Aliyun::OSS::Client.new(
  endpoint: 'endpoint',
  access_key_id: 'AccessKeyId', access_key_secret: 'AccessKeySecret')

bucket = client.get_bucket('my-bucket')
bucket.put_object('my-object', :file => 'local-file')
            

Use ossutil

For more information about how to perform simple upload by using ossutil, see Simple upload.

Use the RESTful API

If your business requires a high level of customization, you can directly call RESTful APIs. To directly call an API, you must include the signature calculation in your code. For more information, see PutObject.

References

  • When you use simple upload, you can configure object metadata to describe an object. For example, you can specify standard HTTP headers such as Content-Type. You can also configure user metadata. For more information about object metadata, see Manage object metadata.
  • After you upload an object to OSS, you can send a callback request to a specified application server by using upload callback. For more information, see Upload callback.
  • After you upload an image object, you can also compress the image object and configure custom styles for the image object. For more information, see IMG implementation modes.