1# <small>nlohmann::basic_json::</small>get_binary 2 3```cpp 4binary_t& get_binary(); 5 6const binary_t& get_binary() const; 7``` 8 9Returns a reference to the stored binary value. 10 11## Return value 12 13Reference to binary value. 14 15## Exception safety 16 17Strong exception safety: if an exception occurs, the original value stays intact. 18 19## Exceptions 20 21Throws [`type_error.302`](../../home/exceptions.md#jsonexceptiontype_error302) if the value is not binary 22 23## Complexity 24 25Constant. 26 27## Examples 28 29??? example 30 31 The following code shows how to query a binary value. 32 33 ```cpp 34 --8<-- "examples/get_binary.cpp" 35 ``` 36 37 Output: 38 39 ```json 40 --8<-- "examples/get_binary.output" 41 ``` 42 43## Version history 44 45- Added in version 3.8.0. 46