auth-flow.txt

getItemFromLS()
saveItemToLS()
decodeAccessToken()
authService.refreshToken()

saveTokens() {
  saveItemToLS()
  dispatch(authSuccess())?
}

1. ON APP LOAD / PAGE REFRESH +
getItemFromLS("accessToken")
getItemFromLS("refreshToken")
Have accessToken && refreshToken? 

YES                                       NO
decodeAccessToken()                       Go to signin page
accessToken expired?

YES                                       NO
authService.refreshToken()                put decoded accessToken and refreshToken to store
API response success?


YES                                       NO
decodeAccessToken()                       Go to signin page
saveTokens()

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2. ON SIGN IN +
send credentials
response success?


YES                                        NO
decodeAccessToken()                        Show errors
saveTokens()
redirect to posts page

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3. 401 error from server during request
error === token expired?

YES                                         NO
get refreshToken from store                 pass error down
authService.refreshToken()
API response success?

YES                                         NO
decodeAccessToken()                         Go to signin page
saveTokens()