[sales] Test sales rest api

dagger/rest/api.nim

@@ -331,7 +331,7 @@ proc initRestApi*(node: DaggerNodeRef, conf: DaggerConf): RestRouter =
         "\nRoot Dir: " & $conf.dataDir)
 
   router.api(
-    MethodPost,
+    MethodGet,
     "/api/dagger/v1/sales/availability") do (
       size: Option[uint64],
       duration: Option[uint64],

tests/testIntegration.nim

@@ -38,3 +38,8 @@ suite "Integration tests":
     let info1 = client.get("http://localhost:8080/api/dagger/v1/info").body
     let info2 = client.get("http://localhost:8081/api/dagger/v1/info").body
     check info1 != info2
+
+  test "node handles new storage availability":
+    let baseurl = "http://localhost:8080/api/dagger/v1"
+    let url = baseurl & "/sales/availability?size=1&duration=1&minPrice=0x2A"
+    check client.get(url).status == "200 OK"