Unverified60% confidenceSolutionExact time
Managing API keys with a .env file rather than hardcoding them is an engineering security best practice that prevents keys from being committed to a Git repository along with the code, causing leakage.
2
Sources
60%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
Getting Started with LangChain: LLM Invocation, Agent Practice, and Environment Setup Guide
bilibiliAI大模型小将7/10/2026
Related Claims
Unverified使用.env文件而非硬编码密钥是工程实践中的基本安全规范，代码中通过dotenv加载.env文件读取环境变量82% similarUnverifiedThe practice of storing sensitive information such as API Keys in a .env file originates from the third principle—"Store config in the environment"—of the Twelve-Factor App methodology.76% similarUnverified推荐通过.env文件配合.gitignore排除在本地存储密钥，部署时由云平台Secrets管理服务注入75% similarUnverifiedIt is recommended to store secret files such as .env outside the project directory, or to manage them centrally through secrets management services such as HashiCorp Vault or AWS Secrets Manager.74% similar
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