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What are best practices for securing API keys in a web application?

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What are best practices for securing API keys in a web application?

Asked on Dec 30, 2025

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Securing API keys in a web application involves storing them safely and ensuring they are not exposed to unauthorized users. Here is a structured approach to managing API keys securely:

Example Concept: API keys should be stored in environment variables or secure vaults, not in the codebase. When sending API keys over the network, use HTTPS to encrypt the transmission. Additionally, implement access controls and rotate keys regularly to minimize risk.

Additional Comment:

Never hard-code API keys directly in your application's source code.
Use environment variables or configuration files that are not included in version control to store API keys.
Implement key rotation and revocation policies to reduce the impact of a compromised key.
Limit the permissions and access scope of API keys to only what is necessary for the application.

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What are best practices for securing API keys in a web application?

Asked on Dec 30, 2025

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