Don't produce duplicate entries when events have non-string fields (#38)

Don't produce duplicate entries when events have non-string fields

outputs/alertmanager.go

@@ -26,6 +26,8 @@ func newAlertmanagerPayload(falcopayload types.FalcoPayload) []alertmanagerPaylo
 		case string:
 			//AlertManger doesn't support dots in a label name
 			amPayload.Labels[strings.Replace(i, ".", "_", -1)] = j.(string)
+		default:
+			continue
 		}
 	}
 	amPayload.Labels["source"] = "falco"

outputs/client_test.go

@@ -11,7 +11,7 @@ import (
 	"github.com/falcosecurity/falcosidekick/types"
 )
 
-var falcoTestInput = `{"output":"This is a test from falcosidekick","priority":"Debug","rule":"Test rule", "time":"2001-01-01T01:10:00Z","output_fields": {"proc.name":"falcosidekick","user.name":"falcosidekick"}}`
+var falcoTestInput = `{"output":"This is a test from falcosidekick","priority":"Debug","rule":"Test rule", "time":"2001-01-01T01:10:00Z","output_fields": {"proc.name":"falcosidekick","user.name":"falcosidekick", "proc.tty": 1234}}`
 
 func TestNewClient(t *testing.T) {
 	u, _ := url.Parse("http://localhost")

outputs/slack.go

@@ -47,6 +47,8 @@ func newSlackPayload(falcopayload types.FalcoPayload, config *types.Configuratio
 				} else {
 					field.Short = false
 				}
+			default:
+				continue
 			}
 			fields = append(fields, field)
 		}

outputs/teams.go

@@ -50,6 +50,8 @@ func newTeamsPayload(falcopayload types.FalcoPayload, config *types.Configuratio
 			case string:
 				fact.Name = i
 				fact.Value = j.(string)
+			default:
+				continue
 			}
 			facts = append(facts, fact)
 		}