ApsaraVideo VOD:Obtain an upload URL and credential

Obtain an upload URL and credential

Your application server must call different OpenAPI operations to obtain upload URLs and credentials for different media types.

1. To obtain the upload URL and credential for an audio or video file, call the CreateUploadVideo operation.

2. To refresh the upload credential for an audio or video file, call the RefreshUploadVideo operation.

3. To obtain the upload URL and credential for an image, call the CreateUploadImage operation.

4. To obtain the upload URL and credential for an auxiliary media asset, call the CreateUploadAttachedMedia operation.

Step 1: Prepare a RAM user

Create a Resource Access Management (RAM) user and note the following:

1. Enable Programmatic Access.

2. Securely store the AccessKey pair that you obtain.

Step 2: Grant permissions to the RAM user

Grant the RAM user permissions to call the required OpenAPI operations. You can attach one of the following system policies to the RAM user as needed. For more information, see Grant permissions to a RAM user.

Step 3: Call an OpenAPI operation

This topic uses a Java example to demonstrate how to obtain the upload URL and credential for a video resource. Before you start, configure an AccessKey pair in your system environment. You can modify the sample code as needed to provide an API operation for your client.

<dependency>
  <groupId>com.aliyun</groupId>
  <artifactId>aliyun-java-sdk-core</artifactId>
  <version>4.7.3</version>
</dependency>
<dependency>
  <groupId>com.aliyun</groupId>
  <artifactId>aliyun-java-sdk-vod</artifactId>
  <version>2.16.32</version>
</dependency>

import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.exceptions.ServerException;
import com.aliyuncs.profile.DefaultProfile;
import com.google.gson.Gson;
import java.util.*;
import com.aliyuncs.vod.model.v20170321.*;
/*
pom.xml
<dependency>
  <groupId>com.aliyun</groupId>
  <artifactId>aliyun-java-sdk-core</artifactId>
  <version>4.6.0</version>
</dependency>
*/

public class CreateUploadVideo {

    public static void main(String[] args) {

        // Please ensure that the environment variables ALIBABA_CLOUD_ACCESS_KEY_ID and ALIBABA_CLOUD_ACCESS_KEY_SECRET are set.
        DefaultProfile profile = DefaultProfile.getProfile("cn-shanghai", System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID"), System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET"));

        IAcsClient client = new DefaultAcsClient(profile);

        CreateUploadVideoRequest request = new CreateUploadVideoRequest();
        request.setFileName("aliyun.mp4");
        request.setTitle("aliyun");

        try {
            CreateUploadVideoResponse response = client.getAcsResponse(request);
            System.out.println(new Gson().toJson(response));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }

    }
}

<dependency>
   <groupId>com.aliyun</groupId>
   <artifactId>vod20170321</artifactId>
   <version>3.6.4</version>
</dependency>

// This file is auto-generated, don't edit it. Thanks.
package com.aliyun.sample;

import com.aliyun.tea.*;

public class Sample {

    /**
     * description