Class JSONPlugin

thirdparty/bottle/bottle.py:2372–2413

class JSONPlugin(object):
    name = 'json'
    api = 2

    def __init__(self, json_dumps=json_dumps):
        self.json_dumps = json_dumps

    def setup(self, app):
        app.config._define('json.enable', default=True, validate=bool,
                          help="Enable or disable automatic dict->json filter.")
        app.config._define('json.ascii', default=False, validate=bool,
                          help="Use only 7-bit ASCII characters in output.")
        app.config._define('json.indent', default=True, validate=bool,
                          help="Add whitespace to make json more readable.")
        app.config._define('json.dump_func', default=None,
                          help="If defined, use this function to transform"
                               " dict into json. The other options no longer"
                               " apply.")

    def apply(self, callback, route):
        dumps = self.json_dumps
        if not self.json_dumps: return callback

        @functools.wraps(callback)
        def wrapper(*a, **ka):
            try:
                rv = callback(*a, **ka)
            except HTTPResponse as resp:
                rv = resp

            if isinstance(rv, dict):
                #Attempt to serialize, raises exception on failure
                json_response = dumps(rv)
                #Set content type only if serialization successful
                response.content_type = 'application/json'
                return json_response
            elif isinstance(rv, HTTPResponse) and isinstance(rv.body, dict):
                rv.body = dumps(rv.body)
                rv.content_type = 'application/json'
            return rv

        return wrapper


class TemplatePlugin(object):