Software⏱️ 2 min read📅 2026-05-31

How to Fix: Unable to resolve " not a valid key=value pair (missing equal-sign) in Authorization header" when POSTing to api gateway

Learn how to fix: Unable to resolve " not a valid key=value pair (missing equal-sign) in Authorization header" when POSTing to api gateway.

Quick Answer: Try checking your system settings or restarting.

The issue you're experiencing is due to the incorrect formatting of the Authorization header in your Python code. The `Authorization` header should be formatted as follows: Authorization: Bearer . Notice that there's a space between 'Authorization' and ':', and no comma after 'Bearer'. This is because the token is not a key-value pair, but rather an authorization token.

🔍 Why This Happens

  • [Cause]

✅ Best Solutions to Fix It

Method 1: Correct Header Formatting

  1. Step 1: Use the correct format for the Authorization header.

Method 2: Verify Token Validation

  1. Step 1: Double-check that your token validation is correct and not causing the issue.

🎯 Final Words

By following these steps, you should be able to resolve the 'not a valid key=value pair (missing equal-sign) in Authorization header' error when posting to your API Gateway.

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