Module: Mpp::X402::Header

Extended by:
T::Sig
Defined in:
lib/mpp/x402/header.rb

Overview

Base64 JSON codecs for x402 v2 headers.

x402 uses standard (not url-safe) base64 of JSON, unlike Payment-auth which uses base64url.

Class Method Summary collapse

Class Method Details

.decode_json(value) ⇒ Object 



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# File 'lib/mpp/x402/header.rb', line 62

def decode_json(value)
  json = decode_base64(value)
  parsed = JSON.parse(json)
  Kernel.raise Mpp::ParseError, "Invalid base64 JSON header." unless parsed.is_a?(Hash)

  parsed
rescue JSON::ParserError
  Kernel.raise Mpp::ParseError, "Invalid base64 JSON header."
end

.decode_payment_required(value) ⇒ Object 



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# File 'lib/mpp/x402/header.rb', line 25

def decode_payment_required(value)
  parsed = decode_json(value)
  validate_payment_required!(parsed)
  parsed
end

.decode_payment_response(value) ⇒ Object 



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# File 'lib/mpp/x402/header.rb', line 49

def decode_payment_response(value)
  parsed = decode_json(value)
  validate_settle_response!(parsed)
  parsed
end

.decode_payment_signature(value) ⇒ Object 



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# File 'lib/mpp/x402/header.rb', line 37

def decode_payment_signature(value)
  parsed = decode_json(value)
  validate_payment_payload!(parsed)
  parsed
end

.encode_json(obj) ⇒ Object 



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# File 'lib/mpp/x402/header.rb', line 56

def encode_json(obj)
  json = Mpp::Json.compact_encode(obj)
  Base64.strict_encode64(json)
end

.encode_payment_required(payment_required) ⇒ Object 



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# File 'lib/mpp/x402/header.rb', line 20

def encode_payment_required(payment_required)
  encode_json(payment_required)
end

.encode_payment_response(settle_response) ⇒ Object 



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# File 'lib/mpp/x402/header.rb', line 44

def encode_payment_response(settle_response)
  encode_json(settle_response)
end

.encode_payment_signature(payment_payload) ⇒ Object 



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# File 'lib/mpp/x402/header.rb', line 32

def encode_payment_signature(payment_payload)
  encode_json(payment_payload)
end