urlencoder

Encode/decode nested data structures to/from url.Values using a predictable dotted/recursive syntax.

import "github.com/aatuh/urlencoder"

e := urlencoder.NewURLEncoder()

vals, _ := e.Encode(map[string]any{
  "user": map[string]any{
    "id":   1,
    "name": "Ada",
  },
  "tags": []string{"a", "b"},
})
// user.id=1&user.name=Ada&tags[0]=a&tags[1]=b

m, _ := e.Decode(vals)
// m["user"].(map[string]any)["name"] == "Ada"

• Keys: a, a.b, a[0], a.mapKey.
• Structs require json tags for field names; embedded fields are inlined.
• Maps must have string keys.
• Pointers/interfaces are dereferenced when non‑nil.

• Guardrails: max recursion depth and slice size, plus basic index validation.
• Decoding uses an internal sparse slice helper and returns regular slices.