Socket
Socket
Sign inDemoInstall

asynch

Package Overview
Dependencies
7
Maintainers
1
Alerts
File Explorer

Install Socket

Protect your apps from supply chain attacks

Install

asynch

A asyncio driver for ClickHouse with native tcp protocol

    0.2.3

Maintainers
1

Readme

asynch

pypi license workflows workflows

Introduction

asynch is an asyncio ClickHouse Python Driver with native (TCP) interface support, which reuse most of clickhouse-driver and comply with PEP249.

Install

> pip install asynch

or if you want to install clickhouse-cityhash to enable transport compression

> pip install asynch[compression]

Usage

Connect to ClickHouse

from asynch import connect

async def connect_database():
    conn = await connect(
        host = "127.0.0.1",
        port = 9000,
        database = "default",
        user = "default",
        password = "",
    )

Create table by sql

async def create_table():
    async with conn.cursor(cursor=DictCursor) as cursor:
        await cursor.execute('create database if not exists test')
        await cursor.execute("""
        CREATE TABLE if not exists test.asynch
            (
                `id`       Int32,
                `decimal`  Decimal(10, 2),
                `date`     Date,
                `datetime` DateTime,
                `float`    Float32,
                `uuid`     UUID,
                `string`   String,
                `ipv4`     IPv4,
                `ipv6`     IPv6

            )
            ENGINE = MergeTree
                ORDER BY id"""
        )

Use fetchone

async def fetchone():
    async with conn.cursor() as cursor:
        await cursor.execute("SELECT 1")
        ret = await cursor.fetchone()
        assert ret == (1,)

Use fetchmany

async def fetchall():
    async with conn.cursor() as cursor:
        await cursor.execute("SELECT 1")
        ret = await cursor.fetchall()
        assert ret == [(1,)]

Use DictCursor to get result with dict

async def dict_cursor():
    async with conn.cursor(cursor=DictCursor) as cursor:
        await cursor.execute("SELECT 1")
        ret = await cursor.fetchall()
        assert ret == [{"1": 1}]

Insert data with dict

from asynch.cursors import DictCursor

async def insert_dict():
    async with conn.cursor(cursor=DictCursor) as cursor:
        ret = await cursor.execute(
            """INSERT INTO test.asynch(id,decimal,date,datetime,float,uuid,string,ipv4,ipv6) VALUES""",
            [
                {
                    "id": 1,
                    "decimal": 1,
                    "date": "2020-08-08",
                    "datetime": "2020-08-08 00:00:00",
                    "float": 1,
                    "uuid": "59e182c4-545d-4f30-8b32-cefea2d0d5ba",
                    "string": "1",
                    "ipv4": "0.0.0.0",
                    "ipv6": "::",
                }
            ],
        )
        assert ret == 1

Insert data with tuple

async def insert_tuple():
    async with conn.cursor(cursor=DictCursor) as cursor:
        ret = await cursor.execute(
            """INSERT INTO test.asynch(id,decimal,date,datetime,float,uuid,string,ipv4,ipv6) VALUES""",
            [
                (
                    1,
                    1,
                    "2020-08-08",
                    "2020-08-08 00:00:00",
                    1,
                    "59e182c4-545d-4f30-8b32-cefea2d0d5ba",
                    "1",
                    "0.0.0.0",
                    "::",
                )
            ],
        )
        assert ret == 1

Use connection pool

async def use_pool():
    pool = await asynch.create_pool()
    async with pool.acquire() as conn:
        async with conn.cursor() as cursor:
            await cursor.execute("SELECT 1")
            ret = await cursor.fetchone()
            assert ret == (1,)
    pool.close()
    await pool.wait_closed()

ThanksTo

  • clickhouse-driver, ClickHouse Python Driver with native interface support.

License

This project is licensed under the Apache-2.0 License.

Keywords

FAQs


Did you know?

Socket installs a GitHub app to automatically flag issues on every pull request and report the health of your dependencies. Find out what is inside your node modules and prevent malicious activity before you update the dependencies.

Install

Related posts

SocketSocket SOC 2 Logo

Product

  • Package Alerts
  • Integrations
  • Docs
  • Pricing
  • FAQ
  • Roadmap

Stay in touch

Get open source security insights delivered straight into your inbox.


  • Terms
  • Privacy
  • Security

Made with ⚡️ by Socket Inc