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// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
package main
import (
"context"
"fmt"
"log"
"os"
"github.com/AzureAD/microsoft-authentication-library-for-go/apps/confidential"
)
func acquireTokenClientCertificate() {
config := CreateConfig("confidential_config.json")
pemData, err := os.ReadFile(config.PemData)
if err != nil {
log.Fatal(err)
}
// This extracts our public certificates and private key from the PEM file. If it is
// encrypted, the second argument must be password to decode.
certs, privateKey, err := confidential.CertFromPEM(pemData, "")
if err != nil {
log.Fatal(err)
}
cred, err := confidential.NewCredFromCert(certs, privateKey)
if err != nil {
log.Fatal(err)
}
app, err := confidential.New(config.Authority, config.ClientID, cred, confidential.WithCache(cacheAccessor))
if err != nil {
log.Fatal(err)
}
result, err := app.AcquireTokenSilent(context.Background(), config.Scopes)
if err != nil {
result, err = app.AcquireTokenByCredential(context.Background(), config.Scopes)
if err != nil {
log.Fatal(err)
}
fmt.Println("Access Token Is " + result.AccessToken)
return
}
fmt.Println("Silently acquired token " + result.AccessToken)
}
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