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AWS SigV4 using curl

curl supports AWS SigV4 natively. This allows you to make requests to AWS APIs directly without having to use the AWS SDKs.

Below is an example equest to an IAM-authenticated API Gateway REST API:

curl --request POST 'https://<api-id>.execute-api.<aws-region>.amazonaws.com/prod/search' \
     --aws-sigv4 'aws:amz:<aws-region>:execute-api' \
     --user "${AWS_ACCESS_KEY_ID}:${AWS_SECRET_ACCESS_KEY}" \
     --header "x-amz-security-token: ${AWS_SESSION_TOKEN}" \
     --header 'Accept: application/json' \
     --data '{"query": "sports"}' \
     | jq .