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Read tokens from store when server starts

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Attempting to read the persisted tokens from the key-value store when the server
begins. The server currently fails when those values are empty.

TODO
- Consider adding logic for knowing if the cached tokens are expired and prompt
  the user to reauthorize the client using a web browser.
This commit is contained in:
William Carroll 2020-02-09 13:51:45 +00:00
parent 248c7a24c6
commit 0f914d8aa0
1 changed files with 14 additions and 3 deletions
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17
monzo_ynab/tokens.go
View file

@ -16,6 +16,7 @@ import (
"net/url"
"os"
"time"
"kv"
)
////////////////////////////////////////////////////////////////////////////////
@ -70,8 +71,6 @@ var chans = &channels{
var (
monzoClientId = os.Getenv("monzo_client_id")
monzoClientSecret = os.Getenv("monzo_client_secret")
cachedAccessToken = os.Getenv("monzo_cached_access_token")
cachedRefreshToken = os.Getenv("monzo_cached_access_token")
)
////////////////////////////////////////////////////////////////////////////////
@ -124,9 +123,21 @@ func refreshTokens(refreshToken string) (string, string) {
////////////////////////////////////////////////////////////////////////////////
func main() {
// Retrieve cached tokens from store.
accessToken := fmt.Sprintf("%v", kv.Get("monzoAccessToken"))
refreshToken := fmt.Sprintf("%v", kv.Get("monzoRefreshToken"))
log.Println("Attempting to retrieve cached credentials...")
log.Printf("Access token: %s\n", accessToken)
log.Printf("Refresh token: %s\n", refreshToken)
if accessToken == "" || refreshToken == "" {
log.Fatal("Cannot start server without access or refresh tokens.")
}
// Manage application state.
go func() {
state := &state{cachedAccessToken, cachedRefreshToken}
state := &state{accessToken, refreshToken}
for {
select {
case msg := <-chans.reads: