Return a "402 Payment Required" error or error document, if a request (or renew/cancel) costs a fee, unless paying was approved. Approval of payment could be indicated with an additional request parameter. Amount of fee could be returned with the error response or with an additional request.
See also #36 - before requesting a document, one might need to know a list of possible storages.
Return a "402 Payment Required" error or error document, if a request (or renew/cancel) costs a fee, unless paying was approved. Approval of payment could be indicated with an additional request parameter. Amount of fee could be returned with the error response or with an additional request.
See also #36 - before requesting a document, one might need to know a list of possible storages.