Shamelessly copy Josiah

source/lib/json/docs/examples/from_msgpack.cpp

@@ -0,0 +1,20 @@
+#include <iostream>
+#include <iomanip>
+#include <nlohmann/json.hpp>
+
+using json = nlohmann::json;
+
+int main()
+{
+    // create byte vector
+    std::vector<std::uint8_t> v = {0x82, 0xa7, 0x63, 0x6f, 0x6d, 0x70, 0x61, 0x63,
+                                   0x74, 0xc3, 0xa6, 0x73, 0x63, 0x68, 0x65, 0x6d,
+                                   0x61, 0x00
+                                  };
+
+    // deserialize it with MessagePack
+    json j = json::from_msgpack(v);
+
+    // print the deserialized JSON value
+    std::cout << std::setw(2) << j << std::endl;
+}