Add import button

frontend/src/App.tsx

@@ -1,13 +1,19 @@
-import React from "react";
-import { QueryClient, QueryClientProvider } from "react-query";
-import { Route, Routes } from "react-router-dom";
-import "./App.css";
-import Coordinator from "./views/coordinator/Coordinator";
-import Groups from "./views/coordinator/Groups";
-import Leaders from "./views/coordinator/Leaders";
-import Students from "./views/coordinator/Students";
+import React from 'react'
+import { QueryClient, QueryClientProvider } from 'react-query'
+import { Route, Routes } from 'react-router-dom'
+import './App.css'
+import Coordinator from './views/coordinator/Coordinator'
+import Groups from './views/coordinator/Groups'
+import Leaders from './views/coordinator/Leaders'
+import Students from './views/coordinator/Students'
 
-const queryClient = new QueryClient();
+const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      refetchOnWindowFocus: false,
+    },
+  },
+})
 
 function App() {
   return (
@@ -23,7 +29,7 @@ function App() {
         </Routes>
       </QueryClientProvider>
     </div>
-  );
+  )
 }
 
-export default App;
+export default App

frontend/src/api/students.ts

@@ -1,10 +1,23 @@
-import axiosInstance from "./axiosInstance";
+import axiosInstance from './axiosInstance'
 
 interface StudentResponse {
-    max_pages: number,
-    students: {first_name: string, last_name: string, index: number, mode: boolean; group: any}[]
+  max_pages: number
+  students: {
+    first_name: string
+    last_name: string
+    index: number
+    mode: boolean
+    group: any
+  }[]
 }
 
-export const getStudents = () => axiosInstance.get<StudentResponse>(
-    "http://127.0.0.1:5000/api/coordinator/students"
-)
+export const getStudents = () =>
+  axiosInstance.get<StudentResponse>(
+    'http://127.0.0.1:5000/api/coordinator/students',
+  )
+
+export const uploadStudents = (payload: FormData) =>
+  axiosInstance.post(
+    'http://127.0.0.1:5000/api/coordinator/students/upload/',
+    payload,
+  )

frontend/src/components/TopBar.tsx

@@ -1,8 +1,8 @@
-import { NavLink } from "react-router-dom";
+import { NavLink } from 'react-router-dom'
 
 const TopBar = () => {
   const linkClass = ({ isActive }: { isActive: boolean }) =>
-    isActive ? "underline font-bold" : "";
+    isActive ? 'underline font-bold' : ''
   return (
     <div className="flex items-center bg-gray-300 p-6">
       <h1 className="text-xl font-bold">System PRI</h1>
@@ -18,7 +18,7 @@ const TopBar = () => {
         </NavLink>
       </div>
     </div>
-  );
-};
+  )
+}
 
-export default TopBar;
+export default TopBar

frontend/src/views/coordinator/Students.tsx

@@ -1,6 +1,6 @@
 import React from 'react'
-import { useQuery } from 'react-query'
-import { getStudents } from '../../api/students'
+import { useMutation, useQuery } from 'react-query'
+import { getStudents, uploadStudents } from '../../api/students'
 
 const TableHeader = (props: { children: React.ReactNode }) => (
   <th className="px-4 py-2 font-medium text-left text-gray-900 whitespace-nowrap">
@@ -9,17 +9,50 @@ const TableHeader = (props: { children: React.ReactNode }) => (
 )
 
 const Students = () => {
-  const { isLoading, data: students } = useQuery('students', () =>
-    getStudents(),
+  const {
+    isLoading: isStudentsLoading,
+    data: students,
+    refetch: refetchStudents,
+  } = useQuery('students', () => getStudents())
+
+  const { mutate: mutateUpload } = useMutation(
+    'uploadStudents',
+    (payload: FormData) => uploadStudents(payload),
+    {
+      onSuccess: () => refetchStudents(),
+    },
   )
-  if (isLoading) {
+
+  const handleOnChange = (event: any) => {
+    const file = event.target.files[0]
+    const payload = new FormData()
+    payload.append('file', file, file.name)
+    mutateUpload(payload)
+  }
+
+  if (isStudentsLoading) {
     return <div>Ładowanie</div>
   }
   return (
     <div>
-      <button className="bg-green-400 p-3 rounded-lg text-white font-bold hover:bg-green-300">
+      <button className="bg-green-400 p-3 rounded-lg text-white font-extrabold hover:bg-green-300">
         Dodaj nowego studenta
       </button>
+      <label
+        className="ml-4 text-green-400 font-extrabold rounded-lg border-2 p-3 border-green-400 hover:border-green-300 cursor-pointer"
+        htmlFor="file"
+      >
+        Importuj
+      </label>
+      <input
+        type="file"
+        id="file"
+        name="avatar"
+        accept=".csv"
+        className="hidden"
+        onChange={handleOnChange}
+      />
+
       <div className="flex mx-auto mt-5 overflow-hidden overflow-x-auto border border-gray-100 rounded">
         <table className="min-w-full text-sm divide-y divide-gray-200">
           <thead>
@@ -34,7 +67,7 @@ const Students = () => {
           <tbody className="divide-y divide-gray-100">
             {students?.data?.students?.map(
               ({ first_name, last_name, index, group, mode }) => (
-                <tr>
+                <tr key={index}>
                   <td className="px-4 py-2 font-medium text-gray-900 whitespace-nowrap">
                     {first_name}
                   </td>