1 #include <iostream>
2 #include <iomanip>
3 #include <nlohmann/json.hpp>
4
5 using json = nlohmann::json;
6 using namespace nlohmann::literals;
7
8 // function to print BJData's diagnostic format
print_byte(uint8_t byte)9 void print_byte(uint8_t byte)
10 {
11 if (32 < byte and byte < 128)
12 {
13 std::cout << (char)byte;
14 }
15 else
16 {
17 std::cout << (int)byte;
18 }
19 }
20
main()21 int main()
22 {
23 // create a JSON value
24 json j = R"({"compact": true, "schema": false})"_json;
25
26 // serialize it to BJData
27 std::vector<std::uint8_t> v = json::to_bjdata(j);
28
29 // print the vector content
30 for (auto& byte : v)
31 {
32 print_byte(byte);
33 }
34 std::cout << std::endl;
35
36 // create an array of numbers
37 json array = {1, 2, 3, 4, 5, 6, 7, 8};
38
39 // serialize it to BJData using default representation
40 std::vector<std::uint8_t> v_array = json::to_bjdata(array);
41 // serialize it to BJData using size optimization
42 std::vector<std::uint8_t> v_array_size = json::to_bjdata(array, true);
43 // serialize it to BJData using type optimization
44 std::vector<std::uint8_t> v_array_size_and_type = json::to_bjdata(array, true, true);
45
46 // print the vector contents
47 for (auto& byte : v_array)
48 {
49 print_byte(byte);
50 }
51 std::cout << std::endl;
52
53 for (auto& byte : v_array_size)
54 {
55 print_byte(byte);
56 }
57 std::cout << std::endl;
58
59 for (auto& byte : v_array_size_and_type)
60 {
61 print_byte(byte);
62 }
63 std::cout << std::endl;
64 }
65