How to overwrite core validation message and code

How to overwrite core validation message and code. example below,

{
“code”: “rest_no_route”,
“message”: “No route was found matching the URL and request method”,
“data”: {
“status”: 404
}
}

Above response need to update like,

{
“error”: “No route was found matching the URL and request method”,
}

https://wordpress.org/plugins/json-rest-api/

• This topic was modified 7 years, 4 months ago by Gnanasekaran Loganathan.