Parse rawjson later example.

Author: treeform

README.md

@@ -313,8 +313,16 @@ type
 let
   messageData = """{"id":123,"data":{"page":"base64","arr":[1,2,3]}}"""
   message = messageData.fromJson(Message)
+
 # make sure raw json was not parsed
 doAssert message.data.string == """{"page":"base64","arr":[1,2,3]}"""
+
 # make sure that dumping raw json produces same result
 doAssert message.toJson() == messageData
 ```
+
+You can also wait to parse the json later or maybe even with different types:
+
+```
+message.data.string.fromJson(DataPayload)
+```

tests/test_rawjson.nim

@@ -12,3 +12,12 @@ let
 doAssert message.data.string == """{"page":"base64","arr":[1,2,3]}"""
 # make sure that dumping raw json produces same result
 doAssert message.toJson() == messageData
+
+# you can also parse the json at some other time
+type
+  DataPayload = object
+    page: string
+    arr: seq[uint8]
+let dp = message.data.string.fromJson(DataPayload)
+doAssert dp.page == "base64"
+doAssert dp.arr == @[1.uint8,2,3]