refactoring: readded abort controller to httpClient.ts

frontend/src/lib/httpClient.ts

@@ -1,6 +1,9 @@
 import { tryCatch } from 'fp-ts/TaskEither'
+import * as J from 'fp-ts/Json'
+import * as E from 'fp-ts/Either'
+import { pipe } from 'fp-ts/lib/function'
 
-async function fetcher<T>(url: string, opt?: RequestInit): Promise<T> {
+async function fetcher(url: string, opt?: RequestInit, controller?: AbortController): Promise<string> {
   const jwt = localStorage.getItem('token')
 
   if (opt && !opt.headers) {
@@ -14,17 +17,27 @@ async function fetcher<T>(url: string, opt?: RequestInit): Promise<T> {
     headers: {
       ...opt?.headers,
       'X-Authentication': jwt ?? ''
-    }
+    },
+    signal: controller?.signal
   })
 
   if (!res.ok) {
     throw await res.text()
   }
 
-  return res.json() as T
+
+
+  return res.text()
 }
 
-export const ffetch = <T>(url: string, opt?: RequestInit) => tryCatch(
+export const ffetch = <T>(url: string, opt?: RequestInit, controller?: AbortController) => tryCatch(
-  () => fetcher<T>(url, opt),
+  async () => pipe(
+    await fetcher(url, opt, controller),
+    J.parse,
+    E.match(
+      (l) => l as T,
+      (r) => r as T
+    )
+  ),
   (e) => `error while fetching: ${e}`
 )