jsoncons::jsonpath::jsonpath_expression #include <jsoncons_ext/jsonpath/jsonpath.hpp> template <class Json> class jsonpath_expression Member functions evaluate Select values from a JSON document select (since 0.172.0) Select values from a JSON document select_paths (since 0.172.0) Select paths of values selected from a JSON document update (since 0.172.0) Update a JSON document in place template <class BinaryOp> void update(const_reference root, BinaryOp op); (1) (since 0.172.0) (1) Evaluates the root value against the compiled JSONPath expression and calls a provided callback repeatedly with the results. Parameters root Root JSON value op A function object that accepts a path and a reference to a Json value. It must have function call signature equivalent to void fun(const basic_path_node<Json::char_type>& path, Json& val); Non-member functions make_expression Returns a `jsonpath_expression` for later evaluation. (since 0.161.0)