The advanced settings of Alibaba Cloud SDK, such as HTTPS request settings, proxy settings, timeout settings, and retry settings, are applicable to scenarios that require high concurrency and network security but are limited by the network environment. The advanced settings of Alibaba Cloud SDK support more scenarios by improving the performance, security, and reliability.
HTTPS request settings
Scenarios
Data security: Compared to HTTP, HTTPS encrypts data transmission over SSL and TLS to prevent network eavesdropping and tampering, ensuring data integrity.
Compliance requirements: Some industries, such as finance and healthcare, require high data transmission security. In such scenarios, HTTPS is required.
Examples
An application needs to obtain sensitive data, such as bill information and user privacy, by calling Alibaba Cloud API operations.
Some industries need to meet General Data Protection Regulation (GDPR) or other data protection requirements.
For more information, see Configure an HTTPS request.
Proxy settings
Scenarios
Strictly controlled network: If your application is in a network environment where access to external networks is controlled by a proxy server, such as an enterprise internal network and a firewall-controlled network, you can configure a proxy to enable access to external services.
Traffic monitoring: During the development and debugging processes, you can use a proxy to capture and analyze requests for debugging purposes.
Examples
An application deployed in the internal network of an enterprise needs to use an HTTP or HTTPS proxy to access Alibaba Cloud services.
Multiple applications in an enterprise share the same proxy server, which manages and schedules requests to external services.
For more information, see Configure a proxy.
Timeout settings
Scenarios
Improve network stability: If the network latency is high or server response speed is low, a proper timeout period can prevent long-time request hangs.
Improve user experience: A proper timeout period for user-oriented applications can prevent long waiting times caused by service unavailability.
Examples
If the network connection is interrupted when a user uploads large files to Object Storage Service (OSS), a proper timeout period can terminate the requests in time and prompt the user to re-upload the files.
A proper timeout period for time-consuming API operations, such as batch operations, can prevent long-time waiting for requests.
For more information, see Configure a timeout period.
Retry settings
Scenarios
Network jitter: Requests may fail in an unstable network environment. A retry mechanism automatically resends requests, increasing the success rate.
Temporary service unavailability: If an Alibaba Cloud service becomes temporarily unavailable, a retry mechanism helps applications automatically recover.
Examples
If your application encounters intermittent network issues when it calls an Alibaba Cloud service, you can configure the number of retries and a retry interval to increase the request success rate.
For more information, see Configure a retry mechanism.