Python graphql.language.ast.StringValueNode() Examples

The following are 8 code examples of graphql.language.ast.StringValueNode(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module graphql.language.ast , or try the search function .
Example #1
Source File: graphql.py    From hiku with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
def _encode(value):
    if value is None:
        return ast.NullValueNode()
    elif isinstance(value, bool):
        return ast.BooleanValueNode(value=value)
    elif isinstance(value, int):
        return ast.IntValueNode(value=str(value))
    elif isinstance(value, float):
        return ast.FloatValueNode(value=str(value))
    elif isinstance(value, str):
        return ast.StringValueNode(value=value)
    elif isinstance(value, list):
        return ast.ListValueNode(values=[_encode(v) for v in value])
    elif isinstance(value, dict):
        return ast.ObjectValueNode(fields=[
            ast.ObjectFieldNode(name=_name(key), value=_encode(val))
            for key, val in value.items()
        ])
    else:
        raise TypeError('Unsupported type: {!r}'.format(value))
Example #2
Source File: test_custom_scalars.py    From ariadne with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def parse_date_literal(ast, variable_values=None):  # pylint: disable=unused-argument
    if not isinstance(ast, StringValueNode):
        raise ValueError()

    formatted_date = ast.value
    parsed_datetime = datetime.strptime(formatted_date, "%Y-%m-%d")
    return parsed_datetime.date()
Example #3
Source File: translator.py    From edgedb with Apache License 2.0 5 votes vote down vote up 
def value_node_from_pyvalue(val: Any):
    if val is None:
        return None
    elif isinstance(val, str):
        val = val.replace('\\', '\\\\')
        value = eql_quote.quote_literal(val)
        return gql_ast.StringValueNode(value=value[1:-1])
    elif isinstance(val, bool):
        return gql_ast.BooleanValueNode(value=bool(val))
    elif isinstance(val, int):
        return gql_ast.IntValueNode(value=str(val))
    elif isinstance(val, (float, decimal.Decimal)):
        return gql_ast.FloatValueNode(value=str(val))
    elif isinstance(val, list):
        return gql_ast.ListValueNode(
            values=[value_node_from_pyvalue(v) for v in val])
    elif isinstance(val, dict):
        return gql_ast.ObjectValueNode(
            fields=[
                gql_ast.ObjectFieldNode(
                    name=n,
                    value=value_node_from_pyvalue(v)
                )
                for n, v in val.items()
            ])
    else:
        raise ValueError(f'unexpected constant type: {type(val)!r}')
Example #4
Source File: translator.py    From edgedb with Apache License 2.0 5 votes vote down vote up 
def convert_default(
    node: gql_ast.ValueNode,
    varname: str
) -> Union[str, float, int, bool]:
    if isinstance(node, (gql_ast.StringValueNode, gql_ast.BooleanValueNode)):
        return node.value
    elif isinstance(node, gql_ast.IntValueNode):
        return int(node.value)
    elif isinstance(node, gql_ast.FloatValueNode):
        return float(node.value)
    else:
        raise errors.QueryError(
            f"Only scalar defaults are allowed. "
            f"Variable {varname!r} has non-scalar default value.")
Example #5
Source File: scalars.py    From pycon with MIT License 5 votes vote down vote up 
def parse_literal_decimal(ast, _variables=None):  # pragma: no cover
    if not isinstance(ast, StringValueNode):
        return INVALID

    try:
        return Decimal(ast.value)
    except ValueError:
        return INVALID
Example #6
Source File: json.py    From graphene with MIT License 5 votes vote down vote up 
def parse_literal(node):
        if isinstance(node, StringValueNode):
            return json.loads(node.value)
Example #7
Source File: decimal.py    From graphene with MIT License 5 votes vote down vote up 
def parse_literal(cls, node):
        if isinstance(node, StringValueNode):
            return cls.parse_value(node.value)
Example #8
Source File: uuid.py    From graphene with MIT License 5 votes vote down vote up 
def parse_literal(node):
        if isinstance(node, StringValueNode):
            return _UUID(node.value)