diff --git a/gui/assets/yaml_mappings/locations.yaml b/gui/assets/yaml_mappings/locations.yaml
new file mode 100644
index 0000000..97ee248
--- /dev/null
+++ b/gui/assets/yaml_mappings/locations.yaml
@@ -0,0 +1,54 @@
+fields:
+  - name: country_code
+    path: ['country', 'code']
+    required: true
+
+  - name: code # this is city code
+    path: ['code']
+    required: true
+
+  - name: id
+    path: ['id']
+
+  - name: country_name
+    path: ['country', 'name']
+
+  - name: name # this is CITY name
+    path: ['name']
+
+  - name: time_zone
+    path: ['time_zone', 'code']
+
+  - name: operator_id
+    path: ['operator_id']
+    required: true
+
+  - name: provider_name
+    path: ['provider', 'name']
+
+  - name: is_proxy_capable
+    path: ['is_proxy_capable']
+
+  - name: is_wireguard_capable
+    path: ['is_wireguard_capable']
+    required: true
+
+  - name: is_hysteria2_capable
+    path: ['is_hysteria2_capable']
+
+  - name: is_vless_capable
+    path: ['is_vless_capable']
+
+
+# original version:
+  # locations.append((
+  # location['country']['code'],
+  # location['code'],
+  # location['id'],
+  # location['country']['name'],
+  # location['name'],
+  # location['time_zone']['code'],
+  # location['operator_id'],
+  # location['provider']['name'],
+  # location['is_proxy_capable'],
+  # location['is_wireguard_capable']))
diff --git a/gui/assets/yaml_mappings/mapping_one.yaml b/gui/assets/yaml_mappings/mapping_one.yaml
new file mode 100644
index 0000000..903eaba
--- /dev/null
+++ b/gui/assets/yaml_mappings/mapping_one.yaml
@@ -0,0 +1,8 @@
+fields:
+  - name: group_a_code
+    path: ['group_a', 'code']
+  - name: code
+    path: ['code']
+  - name: id
+    path: ['id']
+    required: true
diff --git a/gui/assets/yaml_mappings/operators.yaml b/gui/assets/yaml_mappings/operators.yaml
new file mode 100644
index 0000000..f7e9b8f
--- /dev/null
+++ b/gui/assets/yaml_mappings/operators.yaml
@@ -0,0 +1,19 @@
+fields:
+  - name: id
+    path: ['id']
+    required: true
+
+  - name: name
+    path: ['name']
+
+  - name: public_key # this is ed25519
+    path: ['public_key']
+
+  - name: nostr_public_key
+    path: ['nostr_public_key']
+
+  - name: nostr_profile_reference
+    path: ['nostr_profile_reference']
+
+  - name: nostr_attestation_event_reference
+    path: ['nostr_attestation', 'event_reference']