JConf

JConf provides a library to manage a property tree based configuration that has a schema to validate against. The property tree can be serialized and deserialized to JSON and some of its binary derivatives, such as BSON, CBOR, MessagePack, and UBJSON.

It is very similar in concept and usage to Boost's PropertyTree, but the main difference is that JConf has JSON Schema support for data validation.

Usage

jconf::Config config("config.json", "schema.json");
config.load();

// Retrieve a key
std::cout << config.get("some_key");
// Even works with nested properties(converted to a JSON pointer)
std::cout << config.get("/parent/child");

// Set an integer using nlohmann's json object
config.set({{"some_integer", 1337}});
config.set({{"some_integer", "string"}}); // Will raise an exception

// Set nested properties
// NOTE: Refer to the documentation of the `JSON framework` in `See also`
// for syntax documentation
config.set(R"({
                "multiple_values": {
                  "some_integer": 100,
                  "some_boolean": true
                }
              })"_json);

// Set parameters using a path
config.set("logging/level", "info");
config.set("queue/tx", 5000);

See also

JSON framework: https://github.com/nlohmann/json

Validation framework: https://github.com/pboettch/json-schema-validator/

JSON Schema reference: https://json-schema.org/understanding-json-schema/index.html