Mesh Python Client

中文版 README

Introduction

Mesh is a standard implementation for Private Transmission Protocol specification.

Mesh Python develop kits base on Python3.6. Recommend use poetry to manage dependencies.

Features

As an open source Internet of Data infrastructure develop kits, Mesh has the following core functions:

• Minimal kernel with SPI plugin architecture, everything is replacement.
• Support full stack of service mesh architecture.
• Support full stack of service oriented architecture.
• Support transport with TCP, HTTP, or other RPC protocols.
• Support rich routing features.
• Support reliable upstream management and load balancing capabilities.
• Support network and protocol layer observability.
• Support mTLS and protocols on TLS.
• Support rich extension mechanism to provide highly customizable expansion capabilities.
• Support process smooth upgrade.

Get Started

poetry add imesh

or

pip install imesh

RPC

Declared rpc interface Facade.

from abc import ABC, abstractmethod

from mesh import spi, mpi


@spi("mesh")
class Tokenizer(ABC):

    @abstractmethod
    @mpi("mesh.trust.apply")
    def apply(self, kind: str, duration: int) -> str:
        """
        Apply a node token.
        :param kind:
        :param duration:
        :return:
        """
        pass

    @abstractmethod
    @mpi("mesh.trust.verify")
    def verify(self, token: str) -> bool:
        """
        Verify some token verifiable.
        :param token:
        :return:
        """
        pass

Declared rpc service Implement.

from mesh import mps, Tokenizer


@mps
class MeshTokenizer(Tokenizer):

    def apply(self, kind: str, duration: int) -> str:
        return "foo"

    def verify(self, token: str) -> bool:
        return True

Remote reference procedure call.

from mesh import mpi, Tokenizer


class Component:

    @mpi
    def tokenizer(self) -> Tokenizer:
        pass

    def invoke(self) -> bool:
        token = self.tokenizer().apply('PERMIT', 1000 * 60 * 5)
        return self.tokenizer().verify(token)

Transport

Transport is a full duplex communication stream implement.

import mesh
from mesh import Mesh, log, ServiceLoader, Transport, Routable
from mesh.prsim import Metadata


def main():
    mesh.start()

    transport = Routable.of(ServiceLoader.load(Transport).get("mesh"))
    session = transport.with_address("10.99.1.33:570").local().open('session_id_008', {
        Metadata.MESH_VERSION.key(): '',
        Metadata.MESH_TECH_PROVIDER_CODE.key(): 'LX',
        Metadata.MESH_TRACE_ID.key(): Mesh.context().get_trace_id(),
        Metadata.MESH_TOKEN.key(): 'x',
        Metadata.MESH_SESSION_ID.key(): 'session_id_008',
        Metadata.MESH_TARGET_INST_ID.key(): 'JG0100000100000000',
    })
    for index in range(100):
        inbound = f"节点4发送给节点5报文{index}"
        log.info(f"节点4发送:{inbound}")
        session.push(inbound.encode('utf-8'), {}, "topic")
        outbound = session.pop(10000, "topic")
        if outbound:
            log.info(f"节点4接收:{outbound.decode('utf-8')}")