Context used to resolve a callback. Compatible with the JSON response from a push_transaction call.
push_transaction
Whether to run the request in the background. For a https url this means POST in the background instead of a GET redirect.
The callback payload as a object that should be encoded to JSON and POSTed to background callbacks.
The URL to hit.
Context used to resolve a callback. Compatible with the JSON response from a
push_transactioncall.