The Invalid base64 error occurs when invoking a lambda from the AWS CLI because the default --payload parameter expects base64 encoding.
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| aws lambda invoke --function-name test --payload '{"movie": "John Wick"}' response.json
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Error output:
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| Invalid base64: "{"movie": "John Wick"}"
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Solve Invalid base64 lambda invoke error
To solve the Invalid base64 error, supply the --cli-binary-format parameter with the value raw-in-base64-out:
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| aws lambda invoke --function-name test --cli-binary-format raw-in-base64-out --payload '{"movie": "John Wick"}' response.json
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Output:
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| {
"StatusCode": 200,
"ExecutedVersion": "$LATEST"
}
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Invoke a lambda using a file
A user may opt to supply a .json file:
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| {
"movie": "John Wick"
}
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| aws lambda invoke --function-name test --cli-binary-format raw-in-base64-out --payload file://request.json response.json
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