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Queries and Loading Error states\ 0:00 Introduction to React Query 6:00 Introduction to this Course 9:03 First project Blog-em Ipsum 14:41 Creating Queries with useQuery 22:28 Handling Loading and Error States 29:30 React Query Dev Tools 34:27 staleTime vs cacheTime , Pre-fetching and Mutations\ 40:59 Intro to Code Quizzes 43:33 Code Quiz! Create Query for Blog Comments 50:35 Query Keys 56:57 Pagination 1:03:02 Pre-fetching Data 1:09:52 isLoading vs isFetching 1:14:47 Intro to Mutations 1:18:37 Delete Post with useMutation 1:25:25 Code Quiz! Mutation to Update Post Title 1:29:26 Summary React Query Basics Queries for Loading Data Just in Time\ 1:32:27 Introduction to Infinite Scroll 1:36:58 Code Quiz! Set up Infinite SWAPI for React Query 1:42:25 Intro to useInfiniteQuery 1:48:45 Infinite Scroll Diagram 1:53:16 Write useInfiniteQuery Call 1:58:25 InfiniteScroll Component 2:04:42 useInfiniteQuery Fetching and Error states 2:08:49 Code Quiz! Infinite Species 2:15:58 Summary Infinite Scroll Query in Larger App Setup, Centralization, Custom Hooks\ 2:18:52 Intro to Lazy Days Spa App 2:25:13 Lazy Days Spa App Code Orientation 2:30:56 Install and set up React Query 2:37:57 Custom Query Hook useTreatments 2:44:13 Fallback Data 2:46:25 Centralized Fetching indicator with useIsFetching 2:51:08 onError Handler for useQuery 2:56:41 onError Default for Query Client 3:03:28 Code Quiz! Custom Hook for useStaff 3:08:17 Summary Larger App Setup, Centralization, Custom Hooks Features I Pre-Fetching and Pagination\ 3:11:17 Adding Data to the Cache 3:15:32 Pre-Fetching Treatments (concepts) 3:20:43 Pre-Fetching Treatments (syntax) 3:26:06 Intro to useAppointments Custom Hook 3:36:52 useQuery for useAppointments 3:40:45 Query Keys as Dependency Arrays 3:47:06 Code Quiz! Pre-Fetch Appointments 3:54:30 Summary Query Features I Features II Transforming and Re-Fetching Data\ 3:57:55 Filtering Data with the useQuery select Option 4:06:11 Code Quiz! Selector for useStaff 4:12:09 Intro to Re-Fetch 4:18:09 Update Re-Fetch Options 4:23:23 Global Re-Fetch Options 4:28:58 Overriding Re-Fetch Defaults and Polling 4:33:50 Polling Auto Re-Fetching at an Interval 4:38:28 Summary Query Features II Query and Authentication\ 4:39:40 Intro to React Query and Authentication 4:49:25 useAuth, useUser and useQuery 4:54:03 Integrate Auth with React Query 5:00:03 Persist User Data in localStorage 5:04:57 initialData from localStorage for useQuery 5:08:38 Dependent Queries userAppointments 5:19:15 Query Client removeQueries method 5:22:32 Summary React Query and Auth Using React Query to Update Data on the Server\ 5:24:53 Introduction to Mutations and Mutations Global Settings 5:29:24 Custom Mutation Hook useReserveAppointments 5:35:41 Invalidating Query after Mutation 5:41:10 Query Key Prefixes 5:46:53 Code Quiz! Mutation to Cancel an Appointment 5:53:55 Update User and Query Cache with Mutation Response 6:03:29 Intro to Optimistic Updates in React Query 6:10:10 Making a Query Cancel-able 6:16:38 Writing Optimistic Update 6:29:00 Summary Mutations React Query\ 6:30:25 Intro to Testing React Query 6:32:33 Testing Setup, including Mock Service Worker 6:37:06 Query Client and Provider in Tests 6:46:10 Testing Rendered Query Data 6:49:31 Code Quiz! Test Rendered Staff Data 6:53:13 Testing Query Errors 7:04:27 Code Quiz! Staff Query Errors 7:08:47 Testing Mutations 7:17:14 Code Quiz! Test Cancel Appointment Mutation 7:21:37 Intro to Testing Custom Hooks 7:25:12 Test Appointments Filter
