httpie-aws-authv4

AWS / Amazon Signature v4 Signing Process authentication plugin for HTTPie.

Installation

$ pip install --upgrade httpie-aws-authv4

You should now see aws4 under --auth-type / -A in $ http --help output.

Usage

Credentials in default profile/environment variables/instance profile

This authentication plugin looks for credentials in the same precedence that the AWS CLI tool does.

$ http --auth-type aws4 https://asdf123a9sas.execute-api.ap-southeast-2.amazonaws.com/dev/test 

Specify credentials on the CLI

$ http --auth-type aws4 --auth ACCESSKEYXXX:AWSSECRETKEYXXX https://asdf123a9sas.execute-api.ap-southeast-2.amazonaws.com/dev/test 

Specify credentials profile on the CLI

You can specify an another profile than the default profile by providing the keyword profile instead of the access key.

$ http --auth-type aws4 --auth profile:XXX https://asdf123a9sas.execute-api.ap-southeast-2.amazonaws.com/dev/test 

Specify the endpoint

If for some reason you are not hitting the AWS endpoint directly (common with API Gateway), you will need to specify the AWS provided endpoint on the CLI. This is used to determine the service and region values required for the signature process.

$ http --auth-type aws4 --auth asdf123a9sas.execute-api.ap-southeast-2.amazonaws.com https://api.awesomeservice.net/dev/test 

Specify credentials and endpoint

$ http --auth-type aws4 --auth ACCESSKEYXXX:AWSSECRETKEYXXX:asdf123a9sas.execute-api.ap-southeast-2.amazonaws.com https://api.awesomeservice.net/dev/test 

Specify credentials profile and endpoint

$ http --auth-type aws4 --auth profile:XXX:asdf123a9sas.execute-api.ap-southeast-2.amazonaws.com https://api.awesomeservice.net/dev/test 

Calling AWS services that require extra information

Many AWS services do not require any extra information to be passed other than the URL, such as the following call to the S3 service which will list all S3 Buckets in the given AWS account:

http -A aws4 s3.us-east-1.amazonaws.com

However, some AWS services will require extra information to be passed using query string parameters. By default, httpie passes extra parameters as a JSON body. httpie can be told to pass extra parameters as form fields using the -f flag like so:

$ http -f -A aws4 ec2.us-east-1.amazonaws.com Action=DescribeVpcs Version=2015-10-01

where the Action and Version parameters were passed to the EC2 service to call the DescribeVpcs API.

Alternatively instead of using the -f flag, == can be used for each parameter like so:

$ http -A aws4 ec2.us-east-1.amazonaws.com Action==DescribeVpcs Version==2015-10-01

Credits

All of the heavy lifting (the signing process) is handled by aws-requests-auth