Returns a transaction by a given Id
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Base64 encoded signed hash of the http message request components.
"sig1=:OTEyMjY4...A5NTNDMEQ=:"
An ordered list of components that make up the signature base. It is used to recompute and verify the Signature
"sig1=(\"Content-Type\" \"Content-Digest\"...expires=<expires>"
Unique identifier assigned to the client
"client-id"
the transaction id