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matterbridge/vendor/github.com/yaegashi/msgraph.go/msauth/client_credentials_grant.go

28 lines
745 B
Go

package msauth
import (
"context"
"golang.org/x/oauth2"
"golang.org/x/oauth2/clientcredentials"
"golang.org/x/oauth2/microsoft"
)
// ClientCredentialsGrant performs OAuth 2.0 client credentials grant and returns auto-refreshing TokenSource
func (m *Manager) ClientCredentialsGrant(ctx context.Context, tenantID, clientID, clientSecret string, scopes []string) (oauth2.TokenSource, error) {
config := &clientcredentials.Config{
ClientID: clientID,
ClientSecret: clientSecret,
TokenURL: microsoft.AzureADEndpoint(tenantID).TokenURL,
Scopes: scopes,
AuthStyle: oauth2.AuthStyleInParams,
}
var err error
ts := config.TokenSource(ctx)
_, err = ts.Token()
if err != nil {
return nil, err
}
return ts, nil
}