SignMessage rpc

api-spec/openapi/swagger/signer/v1/service.openapi.json

@@ -35,6 +35,46 @@
         }
       }
     },
+    "/v1/sign-message": {
+      "post": {
+        "tags": [
+          "SignerService"
+        ],
+        "operationId": "SignerService_SignMessage",
+        "requestBody": {
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/SignMessageRequest"
+              }
+            }
+          },
+          "required": true
+        },
+        "responses": {
+          "200": {
+            "description": "a successful response.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/SignMessageResponse"
+                }
+              }
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/Status"
+                }
+              }
+            }
+          }
+        }
+      }
+    },
     "/v1/sign-transaction": {
       "post": {
         "tags": [
@@ -184,6 +224,26 @@
           }
         }
       },
+      "SignMessageRequest": {
+        "title": "SignMessageRequest",
+        "type": "object",
+        "properties": {
+          "message": {
+            "type": "string",
+            "format": "byte"
+          }
+        }
+      },
+      "SignMessageResponse": {
+        "title": "SignMessageResponse",
+        "type": "object",
+        "properties": {
+          "signature": {
+            "type": "string",
+            "format": "byte"
+          }
+        }
+      },
       "SignTransactionRequest": {
         "title": "SignTransactionRequest",
         "type": "object",

api-spec/protobuf/signer/v1/service.proto

@@ -28,6 +28,12 @@ service SignerService {
       body: "*"
     };
   }
+  rpc SignMessage(SignMessageRequest) returns (SignMessageResponse) {
+    option (meshapi.gateway.http) = {
+      post: "/v1/sign-message"
+      body: "*"
+    };
+  }
 }
 
 message GetStatusRequest {}
@@ -54,4 +60,11 @@ message SignTransactionTapscriptRequest {
 }
 message SignTransactionTapscriptResponse {
   string signed_tx = 1;
+}
+
+message SignMessageRequest {
+  bytes message = 1;
+}
+message SignMessageResponse {
+  bytes signature = 1;
 }