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// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
package main
import (
"context"
"fmt"
"time"
"github.com/AzureAD/microsoft-authentication-library-for-go/apps/public"
)
func acquireTokenDeviceCode() {
config := CreateConfig("config.json")
app, err := public.New(config.ClientID, public.WithCache(cacheAccessor), public.WithAuthority(config.Authority))
if err != nil {
panic(err)
}
// look in the cache to see if the account to use has been cached
var userAccount public.Account
accounts, err := app.Accounts(context.Background())
if err != nil {
panic("failed to read the cache")
}
for _, account := range accounts {
if account.PreferredUsername == config.Username {
userAccount = account
}
}
// found a cached account, now see if an applicable token has been cached
// NOTE: this API conflates error states, i.e. err is non-nil if an applicable token isn't
// cached or if something goes wrong (making the HTTP request, unmarshalling, etc).
authResult, err := app.AcquireTokenSilent(context.Background(), config.Scopes, public.WithSilentAccount(userAccount))
if err != nil {
// either there was no cached account/token or the call to AcquireTokenSilent() failed
// make a new request to AAD
ctx, cancel := context.WithTimeout(context.Background(), 100*time.Second)
defer cancel()
devCode, err := app.AcquireTokenByDeviceCode(ctx, config.Scopes)
if err != nil {
panic(err)
}
fmt.Printf("Device Code is: %s\n", devCode.Result.Message)
result, err := devCode.AuthenticationResult(ctx)
if err != nil {
panic(fmt.Sprintf("got error while waiting for user to input the device code: %s", err))
}
fmt.Println("Access token is " + result.AccessToken)
return
}
fmt.Println("Access token is " + authResult.AccessToken)
}
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