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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 21, 2025

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Securing API keys in a web application involves keeping them confidential and restricting their usage to prevent unauthorized access. Here’s how you can achieve that:

Example Concept: API keys should be stored in environment variables or secure vaults, not in the source code. This prevents exposure in version control systems. Additionally, use server-side code to manage API key usage, ensuring keys are not exposed in client-side code or network traffic.

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Use environment variables to store API keys and access them in your application code.
Implement key rotation and regularly update API keys to minimize risk if they are compromised.
Restrict API key permissions to only what is necessary for the application’s functionality.

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

Asked on Dec 21, 2025

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