Cloud Object Storage
- Release Notes and Announcements
- Announcements
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- Purchase Guide
- Billing Method
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- Getting Started
- Console Guide
- Bucket Management
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- Folder Management
- Monitoring Reports
- Data Processing
- Image Processing
- File Processing
- Media Processing
- Function Service
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- Automatic Moderation
- Historical data moderation
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- User Tools
- COSBrowser
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- Common Commands
- Online Auxiliary Tools
- Practical Tutorial
- Access Control and Permission Management
- Performance Optimization
- Data Migration
- Data Disaster Recovery and Backup
- Domain Name Management Practice
- Image Processing
- Audio/Video Practices
- Direct Data Upload
- Content Moderation
- Data Verification
- Big Data Practice
- Using COS in the Third-party Applications
- Developer Guide
- Creating Request
- Object
- Uploading Object
- Downloading Object
- Copying Objects
- Deleting Objects
- Data Management
- Lifecycle Management
- Data Disaster Recovery
- Versioning
- Using Versioning
- Cross-Bucket Replication
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- Using CDN to Accelerate Access
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- Troubleshooting
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- API Documentation
- Service APIs
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- Basic Operations
- Access Control List (acl)
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- Bucket Policy (policy)
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- Static Website (website)
- Intelligent Tiering
- Bucket inventory(inventory)
- Cross-Bucket Replication（replication）
- Log Management(logging)
- Global Acceleration (Accelerate)
- Bucket Encryption (encryption)
- Custom Domain Name (Domain)
- Origin-Pull (Origin)
- Object APIs
- Basic Operations
- Access Control List (acl)
- Multipart Upload
- Batch Operation APIs
- Data Processing APIs
- Image Processing
- Basic Image Processing
- AI-Based Content Recognition
- Queue APIs
- Service Configuration
- Media Processing
- Media Screenshot API
- Media Information API
- Private M3U8 API
- File Processing
- File Transcoding
- Async Processing Job APIs
- Async Processing Queue APIs
- File Processing
- Hash Calculation
- File Decompression
- Multi-File Zipping
- Job and Workflow
- Workflow APIs
- Workflow Instance
- Job APIs
- Media Processing
- Canceling Media Processing Job
- Querying Media Processing Job
- Media Processing Job Callback
- Image Processing
- Submit Image Processing Job
- Canceling Image Processing Job
- Querying Image Processing Job
- Multi-Job Processing
- Submitting Multiple Jobs
- AI-Based Content Recognition
- Submitting Content Recognition Job
- Querying Content Recognition Job
- Content Recognition Job Callback
- Sync Media Processing
- Media Screenshot API
- Template APIs
- Media Processing
- Creating Media Processing Template
- Deleting Media Processing Template
- Querying Media Processing Template
- Updating Media Processing Template
- AI-Based Content Recognition
- Creating AI-Based Content Recognition Template
- Querying AI-Based Content Recognition Template
- Updating AI-Based Content Recognition Template
- Batch Job APIs
- Callback Content
- Appendix
- Content Moderation APIs
- Image Moderation
- Video Moderation
- Audio Moderation
- Text Moderation
- Submitting Virus Detection Job
- SDK Documentation
- Android SDK
- Object Operations
- Remote Disaster Recovery
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- Data Verification
- Image Processing
- C SDK
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- Cloud Access Management
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- Data Verification
- C++ SDK
- Cross-Region Disaster Recovery
- Data Management
- Cloud Access Management
- Data Verification
- Content Moderation
- .NET(C#) SDK
- Bucket Operations
- Object Operations
- Cross-Region Disaster Recovery
- Cloud Access Management
- Image Processing
- SDK for Flutter
- Object Operations
- Go SDK
- Bucket Operations
- Object Operations
- Cross-Region Disaster Recovery
- Cloud Access Management
- Data Verification
- File Processing
- Image Processing
- iOS SDK
- Object Operations
- Cross-region Disaster Recovery
- Cloud Access Management
- Image Processing
- Content Recognition
- Speech Recognition
- Java SDK
- Object Operations
- Cross-Region Disaster Recovery
- Cloud Access Management
- File Processing
- Media Processing
- AI-Based Content Recognition
- JavaScript SDK
- Object Operations
- File Processing
- Remote disaster-tolerant
- Data Management
- Cloud Access Management
- Data Verification
- Image Processing
- Node.js SDK
- Object Operations
- Remote disaster-tolerant
- Cloud Access Management
- Data Verification
- Image Processing
- PHP SDK
- Object Operations
- Bucket Operations
- Remote disaster-tolerant
- Cloud Access Management
- Image Processing
- Media Processing
- Document Processing
- File Processing
- Job APIs
- Template APIs
- Python SDK
- Object Operations
- Server-Side Encryption
- Cross-Region Disaster Recovery
- Cloud Access Management
- Content Recognition
- React Native SDK
- Object Operations
- Mini Program SDK
- Object Operations
- Remote disaster-tolerant
- Cloud Access Management
- Data Verification
- Content Moderation
- Image Processing
- FAQs
- Bucket Configuration
- Domain Names and CDN
- Object Operations
- Data Processing
- Related Agreements
- Appendices
- Historical version
Quick Experience
Last updated: 2024-06-25 10:53:13
Background
Applications are the building blocks of the mobile Internet. As they often require massive data upload and download, data security and reliability are extremely crucial. Now, developers can let Tencent Cloud COS（Cloud Object Storage） handle data storage for them, allowing them to solely focus on the business logic of their applications with a lighter workload and higher development efficiency. This document describes how to quickly build a COS-based application transfer service to upload and download your application data through Tencent Cloud COS. All you need to do is deploy your business components and generate and manage temporary keys on your server.
COS provides a demo for XML, which you can run as instructed below.
Relevant Resources
Preparations
Android OS: 4.4 or above.
Your APPID, SecretId, and SecretKey from the API Key Management page on the Tencent Cloud console.
Setting up a User's Application Client
Configuring the client
1. Download the project files from GitHub, and open them in your IDE.
2. Configure your COS_APP_ID, SecretId、SecretKey in the environment variables.
3. Run your project to try out the demo.
Note:
Do not expose your plaintext SecretId or SecretKey to any unsecure environments.
The
ShortTimeCredentialProvider authorization method in the demo is simply used for demonstration purposes and should not be used in your production environment. Instead, we recommend authorizing via temporary keys.After the environment variables have been altered, you may need to restart Android Studio for the updated configuration to take effect.
Running the Demo
Querying a bucket list
Open the sample app, and you will see all the buckets that you have created.
Creating a bucket
Click New Bucket in the upper right-hand corner, enter the bucket name on the configuration page, and select the region in which the bucket resides.
Querying an object list
Click on a bucket, and you will see all the files and folders that it contains.
Uploading a file
On the file list page, click Upload in the upper right corner, and select the file to upload.
Downloading a file
On the file list page, click Download below a file to directly download it.
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