Fix webserver set_config bug (#3425)

* Fix TestSearchDSL multi fields bug
Signed-off-by: Nfishpenguin <kun.yu@zilliz.com>

* Fix set_config bug
Signed-off-by: Nfishpenguin <kun.yu@zilliz.com>

core/src/server/web_impl/handler/WebRequestHandler.cpp

@@ -541,25 +541,17 @@ WebRequestHandler::SetConfig(const nlohmann::json& json, std::string& result_str
 
     std::vector<std::string> cmds;
     for (auto& el : json.items()) {
+        auto ekey = el.key();
         auto evalue = el.value();
-        if (!evalue.is_object()) {
-            return Status(ILLEGAL_BODY, "Invalid payload format, the root value must be json map");
-        }
 
-        for (auto& iel : el.value().items()) {
-            auto ievalue = iel.value();
-            if (!(ievalue.is_string() || ievalue.is_number() || ievalue.is_boolean())) {
-                return Status(ILLEGAL_BODY, "Config value must be one of string, numeric or boolean");
-            }
-            std::ostringstream ss;
-            if (ievalue.is_string()) {
-                std::string vle = ievalue;
-                ss << "set_config " << el.key() << "." << iel.key() << " " << vle;
-            } else {
-                ss << "set_config " << el.key() << "." << iel.key() << " " << ievalue;
-            }
-            cmds.emplace_back(ss.str());
+        std::ostringstream ss;
+        if (evalue.is_string()) {
+            std::string vle = evalue;
+            ss << "set_config " << el.key() << " " << vle;
+        } else {
+            ss << "set_config " << el.key() << " " << evalue;
         }
+        cmds.emplace_back(ss.str());
     }
 
     std::string msg;

core/unittest/server/test_web.cpp

@@ -727,7 +727,13 @@ TEST_F(WebControllerTest, GET_PAGE_ENTITY) {
 }
 
 TEST_F(WebControllerTest, SYSTEM_INFO) {
-    auto response = client_ptr->cmd("config", "", "", connection_ptr);
+    std::string req = R"(
+    {
+        "cache.cache_size": "3221225472b"
+    })";
+    auto response = client_ptr->op("config", req.c_str(), connection_ptr);
+
+    response = client_ptr->cmd("config", "", "", connection_ptr);
     ASSERT_EQ(OStatus::CODE_200.code, response->getStatusCode()) << response->readBodyToString()->c_str();
     auto result_json = nlohmann::json::parse(response->readBodyToString()->c_str());
     ASSERT_TRUE(result_json.contains("cluster.enable"));