How to implement custom renderers in Flask
Educative Answers Team5289679973777408### Renderers In web development, Renderers take response values from views and transform them into a string or bytestring value to be used as a response body.
Custom renderers in Flask
Flask allows the implementation of custom, non-built-in renderers. To do so, the BaseRenderer needs to be overridden. Next, the media_type member of this class and the render(self, data, media_type, **options) method needs to be defined. The following example shows a custom renderer that returns YAML.
# BaseRenderer class
class YAMLRenderer(renderers.BaseRenderer):
# media_type defined
media_type = 'application/yaml'
#render method defined
def render(self, data, media_type, **options):
return yaml.dump(data, encoding=self.charset)Here, the data argument is the request data that is returned by the view. The media_type argument is an optional parameter that, if provided, is the accepted media type. **options are some additional arguments that may be needed to carry out rendering. By default, the following options are included:
statusis a string that represents the response status.status_codeis an integer that represents the response status code.headersis a dictionary that contains the response headers.
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