Skip to content

RedisFastProducer

faststream.redis.publisher.producer.RedisFastProducer #

RedisFastProducer(
    connection: ConnectionState[Redis[bytes]],
    parser: Optional[CustomCallable],
    decoder: Optional[CustomCallable],
    message_format: type[MessageFormat],
    serializer: Optional[SerializerProto],
)

Bases: BaseRedisFastProducer

Producer for a single-node Redis.

Source code in faststream/redis/publisher/producer.py 
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
def __init__(
    self,
    connection: "ConnectionState[Redis[bytes]]",
    parser: Optional["CustomCallable"],
    decoder: Optional["CustomCallable"],
    message_format: type["MessageFormat"],
    serializer: Optional["SerializerProto"],
) -> None:
    super().__init__(
        connection=connection,
        parser=parser,
        decoder=decoder,
        message_format=message_format,
        serializer=serializer,
    )

codec instance-attribute #

codec = codec or DefaultCodec()

serializer instance-attribute #

serializer = serializer

publish async #

publish(cmd: RedisPublishCommand) -> int | bytes
Source code in faststream/redis/publisher/producer.py 
111
112
113
114
115
116
117
118
119
120
121
122
@override
async def publish(self, cmd: "RedisPublishCommand") -> int | bytes:
    msg = await cmd.message_format.encode(
        message=cmd.body,
        reply_to=cmd.reply_to,
        headers=cmd.headers,
        correlation_id=cmd.correlation_id or "",
        serializer=self.serializer,
        codec=self.codec,
    )

    return await self.__publish(msg, cmd)

request async #

request(cmd: RedisPublishCommand) -> Any
Source code in faststream/redis/publisher/producer.py 
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
@override
async def request(self, cmd: "RedisPublishCommand") -> "Any":
    nuid = NUID()
    reply_to = str(nuid.next(), "utf-8")
    psub = self._connection.client.pubsub()

    try:
        await psub.subscribe(reply_to)

        msg = await cmd.message_format.encode(
            message=cmd.body,
            reply_to=reply_to,
            headers=cmd.headers,
            correlation_id=cmd.correlation_id or "",
            serializer=self.serializer,
            codec=self.codec,
        )

        await self.__publish(msg, cmd)

        with anyio.fail_after(cmd.timeout) as scope:
            # skip subscribe message
            await psub.get_message(
                ignore_subscribe_messages=True,
                timeout=cmd.timeout or 0.0,
            )

            # get real response
            response_msg = await psub.get_message(
                ignore_subscribe_messages=True,
                timeout=cmd.timeout or 0.0,
            )

        if scope.cancel_called:
            raise TimeoutError

        return response_msg

    finally:
        with suppress(Exception):
            await psub.unsubscribe()
            await psub.aclose()  # type: ignore[attr-defined]

publish_batch async #

publish_batch(cmd: RedisPublishCommand) -> int
Source code in faststream/redis/publisher/producer.py 
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
@override
async def publish_batch(self, cmd: "RedisPublishCommand") -> int:
    batch = [
        await cmd.message_format.encode(
            message=msg,
            correlation_id=cmd.correlation_id or "",
            reply_to=cmd.reply_to,
            headers=cmd.headers,
            serializer=self.serializer,
            codec=self.codec,
        )
        for msg in cmd.batch_bodies
    ]

    connection = cmd.pipeline or self._connection.client
    return cast("int", await connection.rpush(cmd.destination, *batch))

connect #

connect(
    serializer: Optional[SerializerProto] = None,
    codec: Optional[CodecProto] = None,
) -> None
Source code in faststream/redis/publisher/producer.py 
75
76
77
78
79
80
81
82
def connect(
    self,
    serializer: Optional["SerializerProto"] = None,
    codec: Optional["CodecProto"] = None,
) -> None:
    self.serializer = serializer
    if codec is not None:
        self.codec = codec