Handle fingerprint (#31)

* Handle fingerprint

* Document fingerprint

Author: golemiso

README.md

@@ -144,6 +144,7 @@ The following attributes are interpreted by `slogsentry.DefaultConverter`:
 | "user"           | group (see below) |                 |
 | "error"          | any               | `error`         |
 | "request"        | any               | `*http.Request` |
+| "fingerprint"    | any               | `[]string`      |
 | other attributes | *                 |                 |
 
 Other attributes will be injected in `context` Sentry field.

converter.go

@@ -107,6 +107,10 @@ func attrToSentryEvent(attr slog.Attr, event *sentry.Event) {
 				}
 			}
 		}
+	case k == "fingerprint" && kind == slog.KindAny:
+		if fingerprint, ok := v.Any().([]string); ok {
+			event.Fingerprint = fingerprint
+		}
 	case kind == slog.KindGroup:
 		event.Contexts[k] = slogcommon.AttrsToMap(v.Group()...)
 	default:

converter_test.go

@@ -162,6 +162,10 @@ func TestAttrToSentryEvent(t *testing.T) {
 				}},
 			},
 		},
+		"fingerprint": {
+			attr:     slog.Attr{Key: "fingerprint", Value: slog.AnyValue([]string{"value1", "value2"})},
+			expected: &sentry.Event{Fingerprint: []string{"value1", "value2"}},
+		},
 	}
 
 	for name, tc := range tests {
@@ -177,6 +181,7 @@ func TestAttrToSentryEvent(t *testing.T) {
 			assert.Equal(t, tc.expected.Transaction, event.Transaction)
 			assert.Equal(t, tc.expected.User, event.User)
 			assert.Equal(t, tc.expected.Request, event.Request)
+			assert.Equal(t, tc.expected.Fingerprint, event.Fingerprint)
 			if len(tc.expected.Tags) == 0 {
 				assert.Empty(t, event.Tags)
 			} else {