Added analytics by transactions

backend/src/api/docs/docs.go

@@ -504,6 +504,69 @@ const docTemplate = `{
                 }
             }
         },
+        "/transactions/analytics": {
+            "get": {
+                "description": "Возвращает расходы, доходы и total за период. При фильтре по type второй тип возвращается как 0.",
+                "consumes": [
+                    "application/json"
+                ],
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "Transactions"
+                ],
+                "summary": "Получить аналитику по транзакциям",
+                "parameters": [
+                    {
+                        "type": "integer",
+                        "description": "Family ID",
+                        "name": "family_id",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "description": "Transaction type: income or expense",
+                        "name": "type",
+                        "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "description": "RFC3339 start datetime",
+                        "name": "date_from",
+                        "in": "query",
+                        "required": true
+                    },
+                    {
+                        "type": "string",
+                        "description": "RFC3339 end datetime",
+                        "name": "date_to",
+                        "in": "query",
+                        "required": true
+                    }
+                ],
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "$ref": "#/definitions/dto.TransactionAnalyticsResponse"
+                        }
+                    },
+                    "400": {
+                        "description": "Bad Request",
+                        "schema": {
+                            "$ref": "#/definitions/dto.ErrorResponse"
+                        }
+                    },
+                    "500": {
+                        "description": "Internal Server Error",
+                        "schema": {
+                            "$ref": "#/definitions/dto.ErrorResponse"
+                        }
+                    }
+                }
+            }
+        },
         "/transactions/{id}": {
             "get": {
                 "description": "Возвращает транзакцию по ее внутреннему ID",
@@ -1140,6 +1203,20 @@ const docTemplate = `{
                 }
             }
         },
+        "dto.TransactionAnalyticsResponse": {
+            "type": "object",
+            "properties": {
+                "expenses": {
+                    "type": "number"
+                },
+                "incomes": {
+                    "type": "number"
+                },
+                "total": {
+                    "type": "number"
+                }
+            }
+        },
         "dto.TransactionListResponse": {
             "type": "object",
             "properties": {