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820736896e
RFC 3986 obsoletes RFC 1738, which this BIP was wrongly referencing. The new RFC requires far less escaping for query parameters.
62 lines
2.0 KiB
Plaintext
62 lines
2.0 KiB
Plaintext
<pre>
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BIP: 72
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Title: bitcoin: uri extensions for Payment Protocol
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Author: Gavin Andresen <gavinandresen@gmail.com>
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Status: Draft
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Type: Standards Track
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Created: 29-07-2013
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</pre>
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==Abstract==
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This BIP describes an extension to the bitcoin: URI scheme (BIP 21) to
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support the payment protocol (BIP 70).
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==Motivation==
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Allow users to click on a link in a web page or email to initiate the
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payment protocol, while being backwards-compatible with existing
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bitcoin wallets.
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==Specification==
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The bitcoin: URI scheme is extended with an additional, optional
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"r" parameter, whose value is a URL from which a PaymentRequest
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message should be fetched (characters not allowed within the scope
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of a query parameter must be percent-encoded as described in RFC 3986
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and bip-0021).
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If the "r" parameter is provided and backwards compatibility
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is not required, then the bitcoin address portion of the URI may be
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omitted (the URI will be of the form: bitcoin:?r=... ).
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When Bitcoin wallet software that supports this BIP receives a
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bitcoin: URI with a request parameter, it should ignore the bitcoin
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address/amount/label/message in the URI and instead fetch a
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PaymentRequest message and then follow the payment protocol, as
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described in BIP 70.
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Bitcoin wallets must support fetching PaymentRequests via http and
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https protocols; they may support other protocols. Wallets must
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include an Accept HTTP header in HTTP(s) requests:
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<pre>Accept: application/bitcoin-paymentrequest</pre>
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If a PaymentRequest cannot be obtained (perhaps the server is
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unavailable), then the customer should be informed that the merchant's
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payment processing system is unavailable.
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==Compatibility==
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Wallet software that does not support this BIP will simply ignore the
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r parameter and will initiate a payment to bitcoin address.
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==Examples==
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A backwards-compatible request:
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<pre>
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bitcoin:mq7se9wy2egettFxPbmn99cK8v5AFq55Lx?amount=0.11&r=https://merchant.com/pay.php?h%3D2a8628fc2fbe
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</pre>
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Non-backwards-compatible equivalent:
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<pre>
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bitcoin:?r=https://merchant.com/pay.php?h%3D2a8628fc2fbe
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</pre>
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