added slapapi

internal/discord/steamid.go

@@ -0,0 +1,18 @@
+package discord
+
+import (
+	"github.com/pkg/errors"
+)
+
+func (s *OAuthSession) GetSteamID() (string, error) {
+	connections, err := s.UserConnections()
+	if err != nil {
+		return "", errors.Wrap(err, "s.UserConnections")
+	}
+	for _, conn := range connections {
+		if conn.Type == "steam" {
+			return conn.ID, nil
+		}
+	}
+	return "", errors.New("steam connection not found")
+}