Skip to content

NatsSubscriberSpecification

faststream.nats.subscriber.specification.NatsSubscriberSpecification #

NatsSubscriberSpecification(
    _outer_config, specification_config, calls
)

Bases: SubscriberSpecification[NatsBrokerConfig, NatsSubscriberSpecificationConfig]

Source code in faststream/_internal/endpoint/subscriber/specification.py 
29
30
31
32
33
34
35
36
37
def __init__(
    self,
    _outer_config: "T_BrokerConfig",
    specification_config: "T_SpecificationConfig",
    calls: "CallsCollection[Any]",
) -> None:
    self.calls = calls
    self.config = specification_config
    self._outer_config = _outer_config

subject property #

subject

name property #

name

calls instance-attribute #

calls = calls

config instance-attribute #

config = specification_config

include_in_schema property #

include_in_schema

description property #

description

call_name property #

call_name

get_schema #

get_schema()
Source code in faststream/nats/subscriber/specification.py 
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
def get_schema(self) -> dict[str, SubscriberSpec]:
    payloads = self.get_payloads()

    return {
        self.name: SubscriberSpec(
            description=self.description,
            operation=Operation(
                message=Message(
                    title=f"{self.name}:Message",
                    payload=resolve_payloads(payloads),
                ),
                bindings=None,
            ),
            bindings=ChannelBinding(
                nats=nats.ChannelBinding(
                    subject=self.subject,
                    queue=self.config.queue,
                ),
            ),
        ),
    }

get_payloads #

get_payloads()
Source code in faststream/_internal/endpoint/subscriber/specification.py 
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
def get_payloads(self) -> list[tuple["dict[str, Any]", str]]:
    payloads: list[tuple[dict[str, Any], str]] = []

    call_name = self.call_name

    for h in self.calls:
        if h.dependant is None:
            msg = "You should setup `Handler` at first."
            raise SetupError(msg)

        body = parse_handler_params(
            h.dependant,
            prefix=f"{self.config.title_ or call_name}:Message",
        )
        payloads.append((body, to_camelcase(h.name)))

    if not self.calls:
        payloads.append(
            (
                {
                    "title": f"{self.config.title_ or call_name}:Message:Payload",
                },
                to_camelcase(call_name),
            ),
        )

    return payloads