JSON in Environment Variables: Escaping and Parsing
Safely pass JSON in environment variables: escaping for shell, Base64 encoding, dotenv parsing, and Docker/Kubernetes secrets handling.
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Tags: json, developer-tools, devops
JSON in Environment Variables: Escaping, Encoding, and Parsing Passing a single string as an environment variable is easy. Passing a JSON object — a connection config, a list of feature flags, a nested auth config — is where things break in ways that are hard to debug. The shell eats quotes. Docker mishandles newlines. Kubernetes silently truncates values. And then your app starts with a config parse error and no clear reason why. This article covers the mechanics of getting JSON in and out of environment variables reliably. Why Shell Quoting Makes JSON Painful? Encoding Strategies for JSON in Environment Variables | Method | Pros | Cons | Best For | |--------|------|------|----------| | Single quotes | Simple for most cases | Breaks if JSON contains apostrophes | Simple config, no single…
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