use 202 if JSON was requested

1 files changed, 19 insertions, 0 deletions

diff --git a/core/api-merchant.rst b/core/api-merchant.rst
index db1bf9cb..8849db2b 100644
--- a/core/api-merchant.rst
+++ b/core/api-merchant.rst
@@ -1389,6 +1389,12 @@ Payment processing
   ignored (treated as zero). If the backend installation does not include the
   required HTML templates, a 406 status code is returned.
 
+  In the case that the request was made with a claim token (even the wrong one)
+  and the order was claimed and paid, the server will redirect the client to
+  the fulfillment URL.  This redirection will happen with a 302 status code
+  if the "Accept" header specified "text/html", and with a 202 status code
+  otherwise.
+
   **Request:**
 
   :query h_contract=HASH: hash of the order's contract terms (this is used to authenticate the wallet/customer in case $ORDER_ID is guessable). Required once an order was claimed.
@@ -1405,6 +1411,10 @@ Payment processing
 
   :status 200 OK:
     The response is a `StatusPaidResponse`.
+  :status 202 Accepted:
+    The response is a `StatusGotoResponse`. Only returned if the content type requested was not HTML.
+  :status 302 Found:
+    The client should go to the indicated location. Only returned if the content type requested was HTML.
   :status 402 PaymentRequired:
     The response is a `StatusUnpaidResponse`.
   :status 403 Forbidden:
@@ -1436,6 +1446,15 @@ Payment processing
 
     }
 
+    .. ts:def:: StatusGotoResponse
+
+    interface StatusGotoResponse {
+      // The client should go to the fulfillment URL, it may be ready or
+      // might have some other interesting status.
+      fulfillment_url: string;
+
+    }
+
   .. ts:def:: StatusUnpaidResponse
 
     interface StatusUnpaidResponse {