feat: replacing useState with useReducer #94
Conversation
WalkthroughThe update in the Changes
Sequence Diagram(s)sequenceDiagram
participant Component as AuthProvider
participant Reducer as reducer
Note over Component,Reducer: On Component Load
Component->>Reducer: Dispatch { type: ACTION_TYPE_LOADING }
Reducer-->>Component: Update state isLoading to true
Note over Component,Reducer: On Login Event
Component->>Reducer: Dispatch { type: ACTION_TYPE_LOGIN, payload: {...} }
Reducer-->>Component: Update state isAuthenticated, user, isLoading to false
Note over Component,Reducer: On Logout Event
Component->>Reducer: Dispatch { type: ACTION_TYPE_LOGOUT }
Reducer-->>Component: Update state isAuthenticated to false, user to null, logoutReason
Component-->>UI: Render based on updated state
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Actionable comments posted: 1
Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Files selected for processing (5)
- packages/auth-provider/src/common/constants.ts (1 hunks)
- packages/auth-provider/src/common/types.d.ts (2 hunks)
- packages/auth-provider/src/components/AuthProvider/AuthProvider.tsx (9 hunks)
- packages/auth-provider/src/components/AuthProvider/InternalContext.ts (1 hunks)
- packages/auth-provider/src/components/AuthProvider/reducer.ts (1 hunks)
Files skipped from review due to trivial changes (2)
- packages/auth-provider/src/common/constants.ts
- packages/auth-provider/src/components/AuthProvider/InternalContext.ts
Additional context used
Learnings (1)
packages/auth-provider/src/components/AuthProvider/AuthProvider.tsx (1)
Learnt from: aversini PR: aversini/auth-client#21 File: packages/auth-provider/src/components/AuthProvider/AuthProvider.tsx:1-89 Timestamp: 2024-06-24T18:39:55.099Z Learning: Avoid detailed error logging in security-sensitive components like authentication to prevent giving potential attackers insights into the system.
Additional comments not posted (11)
packages/auth-provider/src/components/AuthProvider/reducer.ts (2)
1-6: Imports look good!The import statements correctly bring in necessary constants and type definitions for the reducer function.
8-36: Reducer function looks good!The reducer function correctly handles different action types and updates the state accordingly. The use of optional chaining (
action?.type) is a good practice.packages/auth-provider/src/common/types.d.ts (2)
1-5: Imports look good!The import statements correctly bring in necessary constants for defining the
InternalActionstype.
44-66: Type definition looks good!The
InternalActionstype definition correctly handles different action payloads for loading, login, and logout operations, ensuring type safety in the reducer function.packages/auth-provider/src/components/AuthProvider/AuthProvider.tsx (7)
8-30: Imports look good!The import statements correctly bring in necessary hooks, utilities, and constants for the
AuthProvidercomponent. The addition ofuseReducerand action types aligns with the refactoring goal.
38-43: useReducer initialization looks good!The
useReducerhook is correctly initialized with thereducerfunction andinitialState. The inline definition of the initial state is appropriate for this use case.
Line range hint
83-96:
invalidateAndLogout function looks good!The function correctly handles the logout process and updates the state using the
removeStateAndLocalStoragefunction.
Line range hint
114-141:
useEffect for setting authentication state looks good!The effect correctly updates the state based on the
idTokenand handles errors by logging the user out. The use of a ref to prevent re-running the effect is a good practice.
Line range hint
146-212:
login function looks good!The function correctly handles the login process and updates the state using the
dispatchfunction. The use ofdispatchto update the state aligns with the refactoring goal.
Line range hint
227-265:
getAccessToken function looks good!The function correctly handles access token retrieval and refresh. The error handling is appropriate for this context.
272-278: Return statement looks good!The return statement correctly sets up the context providers to pass down state and dispatch functions.
| dispatch({ | ||
| type: ACTION_TYPE_LOGOUT, | ||
| payload: { | ||
| logoutReason: logoutReason || EXPIRED_SESSION, | ||
| }, | ||
| }); | ||
| removeIdToken(); | ||
| removeAccessToken(); | ||
| removeRefreshToken(); | ||
| removeNonce(); | ||
| dispatch({ type: ACTION_TYPE_LOADING, payload: { isLoading: false } }); |
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Remove redundant dispatch in removeStateAndLocalStorage.
The additional dispatch to set isLoading to false is redundant since the logout action already sets it.
- dispatch({ type: ACTION_TYPE_LOADING, payload: { isLoading: false } });Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| dispatch({ | |
| type: ACTION_TYPE_LOGOUT, | |
| payload: { | |
| logoutReason: logoutReason || EXPIRED_SESSION, | |
| }, | |
| }); | |
| removeIdToken(); | |
| removeAccessToken(); | |
| removeRefreshToken(); | |
| removeNonce(); | |
| dispatch({ type: ACTION_TYPE_LOADING, payload: { isLoading: false } }); | |
| dispatch({ | |
| type: ACTION_TYPE_LOGOUT, | |
| payload: { | |
| logoutReason: logoutReason || EXPIRED_SESSION, | |
| }, | |
| }); | |
| removeIdToken(); | |
| removeAccessToken(); | |
| removeRefreshToken(); | |
| removeNonce(); |
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@aversini, upon further inspection, the reducer function already sets isLoading to false when handling the ACTION_TYPE_LOGOUT action. Therefore, the additional dispatch to set isLoading to false in removeStateAndLocalStorage is redundant.
Here is the relevant part of the reducer function:
if (action?.type === ACTION_TYPE_LOGOUT) {
return {
...state,
isLoading: false,
isAuthenticated: false,
user: undefined,
logoutReason: action.payload.logoutReason,
};
}Would you like to proceed with removing the redundant dispatch?
Analysis chain
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for the reducer function implementation to verify the handling of ACTION_TYPE_LOGOUT action.
ast-grep --lang typescript --pattern $'export const reducer = ($_state, $_action) => {
switch ($_action.type) {
case ACTION_TYPE_LOGOUT:
$_body
default:
return $_state;
}
}' -A 10
Length of output: 204
Script:
#!/bin/bash
# Search for the reducer function in the codebase.
rg 'export const reducer' -A 10
Length of output: 972
Script:
#!/bin/bash
# Retrieve the complete implementation of the reducer function to inspect ACTION_TYPE_LOGOUT handling.
rg 'export const reducer' -A 30
Length of output: 2383
Learnings added
Learnt from: aversini
PR: aversini/auth-client#94
File: packages/auth-provider/src/components/AuthProvider/AuthProvider.tsx:66-76
Timestamp: 2024-07-09T23:11:58.510Z
Learning: In the `AuthProvider` component, ensure that dispatch actions are not redundant by verifying the reducer function's handling of specific actions.
Note: Learnings are effective only in the context of similar code segments. To apply general coding guidelines, please configure review instructions. You can manage existing learnings in the app.
Learnings used
Learnt from: aversini
PR: aversini/auth-client#21
File: packages/auth-provider/src/components/AuthProvider/AuthProvider.tsx:1-89
Timestamp: 2024-06-24T18:39:55.099Z
Learning: Avoid detailed error logging in security-sensitive components like authentication to prevent giving potential attackers insights into the system.
Bundle Size
Overall bundle size: 10.47 KB (+102 B +0.96%) |
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Actionable comments posted: 0
Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Files selected for processing (1)
- packages/auth-provider/src/common/types.d.ts (2 hunks)
Files skipped from review as they are similar to previous changes (1)
- packages/auth-provider/src/common/types.d.ts
Summary by CodeRabbit
New Features
InternalContextto provide initial state and default dispatch for authentication.Refactor
useStatetouseReducerinAuthProviderfor better state management and control flow.