looprpc: add SwapPublicationDeadline to QuoteRequest

Author: halseth

looprpc/client.pb.go

@@ -356,6 +356,15 @@ message QuoteRequest {
     actor.
     */
     bool external_htlc = 3;
+
+    /**
+    The latest time (in unix seconds) we allow the server to wait before
+    publishing the HTLC on chain. Setting this to a larger value will give the
+    server the opportunity to batch multiple swaps together, and wait for
+    low-fee periods before publishing the HTLC, potentially resulting in a
+    lower total swap fee.
+    */
+    uint64 swap_publication_deadline = 4;
 }
 
 message QuoteResponse {

looprpc/client.proto

@@ -78,6 +78,14 @@
             "required": false,
             "type": "boolean",
             "format": "boolean"
+          },
+          {
+            "name": "swap_publication_deadline",
+            "description": "*\nThe latest time (in unix seconds) we allow the server to wait before\npublishing the HTLC on chain. Setting this to a larger value will give the\nserver the opportunity to batch multiple swaps together, and wait for\nlow-fee periods before publishing the HTLC, potentially resulting in a\nlower total swap fee.",
+            "in": "query",
+            "required": false,
+            "type": "string",
+            "format": "uint64"
           }
         ],
         "tags": [
@@ -165,6 +173,14 @@
             "required": false,
             "type": "boolean",
             "format": "boolean"
+          },
+          {
+            "name": "swap_publication_deadline",
+            "description": "*\nThe latest time (in unix seconds) we allow the server to wait before\npublishing the HTLC on chain. Setting this to a larger value will give the\nserver the opportunity to batch multiple swaps together, and wait for\nlow-fee periods before publishing the HTLC, potentially resulting in a\nlower total swap fee.",
+            "in": "query",
+            "required": false,
+            "type": "string",
+            "format": "uint64"
           }
         ],
         "tags": [