def parameters_to_url_query()

in client/python/polaris/catalog/api_client.py [0:0]

• 30 lines of code
• 15 McCabe index (conditional complexity)

    def parameters_to_url_query(self, params, collection_formats):
        """Get parameters as list of tuples, formatting collections.

        :param params: Parameters as dict or list of two-tuples
        :param dict collection_formats: Parameter collection formats
        :return: URL query string (e.g. a=Hello%20World&b=123)
        """
        new_params: List[Tuple[str, str]] = []
        if collection_formats is None:
            collection_formats = {}
        for k, v in params.items() if isinstance(params, dict) else params:
            if isinstance(v, bool):
                v = str(v).lower()
            if isinstance(v, (int, float)):
                v = str(v)
            if isinstance(v, dict):
                v = json.dumps(v)

            if k in collection_formats:
                collection_format = collection_formats[k]
                if collection_format == 'multi':
                    new_params.extend((k, str(value)) for value in v)
                else:
                    if collection_format == 'ssv':
                        delimiter = ' '
                    elif collection_format == 'tsv':
                        delimiter = '\t'
                    elif collection_format == 'pipes':
                        delimiter = '|'
                    else:  # csv is the default
                        delimiter = ','
                    new_params.append(
                        (k, delimiter.join(quote(str(value)) for value in v))
                    )
            else:
                new_params.append((k, quote(str(v))))

        return "&".join(["=".join(map(str, item)) for item in new_params])