# otp.ops.base16_encode

### base16_encode(value)

Encodes the string `value` with Base16 algorithm in accordance to RFC 4648.

* **Parameters:**
  **value** (str, [`Operation`](https://docs.pip.distribution.sol.onetick.com/api/operation/root.html.md#onetick.py.Operation))
* **Return type:**
  [`Operation`](https://docs.pip.distribution.sol.onetick.com/api/operation/root.html.md#onetick.py.Operation)

### Examples

Encoding string literal:

```pycon
>>> data = otp.Tick(A=otp.ops.base16_encode('hello'))
>>> otp.run(data)
        Time           A
0 2003-12-01  68656C6C6F
```

Encoding each string in a column:

```pycon
>>> data = otp.Ticks(A=['hello', 'world'])
>>> data['X'] = otp.ops.base16_encode(data['A'])
>>> otp.run(data)
                     Time      A                                                                 X
0 2003-12-01 00:00:00.000  hello  68656C6C6F000000000000000000000000000000000000000000000000000000
1 2003-12-01 00:00:00.001  world  776F726C64000000000000000000000000000000000000000000000000000000
```

Note that all NULL-characters are also encoded by default,
they can be removed with
[`rtrim()`](https://docs.pip.distribution.sol.onetick.com/api/operation/str/rtrim.html.md#onetick.py.core.column_operations.accessors.str_accessor._StrAccessor.rtrim):

```pycon
>>> data = otp.Ticks(A=['hello', 'world'])
>>> data['X'] = otp.ops.base16_encode(data['A'].str.rtrim())
>>> otp.run(data)
                     Time      A           X
0 2003-12-01 00:00:00.000  hello  68656C6C6F
1 2003-12-01 00:00:00.001  world  776F726C64
```

#### SEE ALSO
**BASE16_ENCODE** OneTick function
<br/>
[`base16_decode()`](https://docs.pip.distribution.sol.onetick.com/api/functions/string/base16_decode.html.md#onetick.py.ops.base16_decode)
<br/>