fix: json parser type

Author: Bekacru

packages/better-fetch/src/fetch.ts

@@ -110,7 +110,7 @@ export const betterFetch = async <
 		}
 		const responseType = detectResponseType(response);
 		const successContext = {
-			data: null as any,
+			data: "" as any,
 			response,
 			request: context,
 		};
@@ -122,6 +122,7 @@ export const betterFetch = async <
 		} else {
 			successContext.data = await response[responseType]();
 		}
+		console.log({ ctx: successContext.data, responseType });
 
 		/**
 		 * Parse the data if the output schema is defined

packages/better-fetch/src/types.ts

@@ -90,7 +90,7 @@ export type BetterFetchOption<
 			/**
 			 * Custom JSON parser
 			 */
-			jsonParser?: <T>(text: string) => Promise<T | undefined>;
+			jsonParser?: (text: string) => Promise<any> | any;
 			/**
 			 * Retry count
 			 */