encodeJson method
      
Request
encodeJson(
    
    
- Request request
inherited
    Implementation
Request encodeJson(Request request) {
  final String? contentType = request.headers[contentTypeKey];
  if ((contentType?.contains(jsonHeaders) ?? false) &&
      (request.body.runtimeType != String || !isJson(request.body))) {
    return request.copyWith(body: json.encode(request.body));
  }
  return request;
}