1 files changed, 30 insertions, 0 deletions
diff --git a/pkg/flatten/flatten.go b/pkg/flatten/flatten.go
new file mode 100644
index 0000000..a31705b
--- /dev/null
+++ b/pkg/flatten/flatten.go
@@ -0,0 +1,30 @@
+package flatten
+
+import (
+	"strconv"
+)
+
+// Flatten creates flat, one-dimensional maps from arbitrarily nested values, e.g. JSON.
+func Flatten(value interface{}, prefix string) map[string]interface{} {
+	var flatten func(string, interface{})
+	flattened := make(map[string]interface{})
+
+	flatten = func(key string, value interface{}) {
+		switch value := value.(type) {
+		case map[string]interface{}:
+			for k, v := range value {
+				flatten(key+"."+k, v)
+			}
+		case []interface{}:
+			for i, v := range value {
+				flatten(key+"["+strconv.Itoa(i)+"]", v)
+			}
+		default:
+			flattened[key] = value
+		}
+	}
+
+	flatten(prefix, value)
+
+	return flattened
+}