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https://github.com/long2ice/meilisync

Realtime sync data from MySQL/PostgreSQL/MongoDB to Meilisearch
https://github.com/long2ice/meilisync

datasync etl meilisearch mongodb mysql postgresql realtime-synchronization

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Realtime sync data from MySQL/PostgreSQL/MongoDB to Meilisearch

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# meilisync

[![image](https://img.shields.io/pypi/v/meilisync.svg?style=flat)](https://pypi.python.org/pypi/meilisync)
[![image](https://img.shields.io/github/license/meilisync/meilisync)](https://github.com/meilisync/meilisync)
[![image](https://github.com/meilisync/meilisync/workflows/pypi/badge.svg)](https://github.com/meilisync/meilisync/actions?query=workflow:pypi)
[![image](https://github.com/meilisync/meilisync/workflows/ci/badge.svg)](https://github.com/meilisync/meilisync/actions?query=workflow:ci)
[![PyPI - Python Version](https://img.shields.io/pypi/pyversions/meilisync?color=5cc141)](https://github.com/long2ice/meilisync)

## Introduction

Realtime sync data from MySQL/PostgreSQL/MongoDB to Meilisearch.

There is also a web admin dashboard for meilisync [meilisync-admin](https://github.com/long2ice/meilisync-admin).

## Install

Install from pypi:

- `pip install meilisync[mysql]` for MySQL.
- `pip install meilisync[postgres]` for PostgreSQL.
- `pip install meilisync[mongo]` for MongoDB.
- `pip install meilisync[all]` for all.
- `pip install meilisync[redis]` for redis progress.

## Use docker (Recommended)

You can use docker to run `meilisync`:

```yaml
version: "3"
services:
meilisync:
image: long2ice/meilisync
volumes:
- ./config.yml:/meilisync/config.yml
restart: always
```

## Prerequisites

- `MySQL`: `binlog_format = ROW`, use binary log.
- `PostgreSQL`: `wal_level = logical` and install `wal2json` extension, use logical replication.
- `MongoDB`: enable replica set mode, use change stream.

## Quick Start

If you run `meilisync` without any arguments, it will try to load the configuration from `config.yml` in the current
directory.

```shell
❯ meilisync --help

Usage: meilisync [OPTIONS] COMMAND [ARGS]...

╭─ Options ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ --config -c TEXT Config file path [default: config.yml] │
│ --install-completion Install completion for the current shell. │
│ --show-completion Show completion for the current shell, to copy it or customize the installation. │
│ --help Show this message and exit. │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
╭─ Commands ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ check Check whether the data in the database is consistent with the data in Meilisearch │
│ refresh Refresh all data by swap index │
│ start Start meilisync │
│ version Show meilisync version │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
```

### Start sync

Start sync data from MySQL to Meilisearch:

```shell
❯ meilisync start
2023-03-07 08:37:25.656 | INFO | meilisync.main:_:86 - Start increment sync data from "mysql" to Meilisearch...
```

### Refresh sync

Refresh all data by swap index:

```shell
❯ meilisync refresh -t test
```

Before refresh, you need stop the sync process first to avoid data inconsistency.

### Check sync

Check whether the data count in the database is consistent with the data in Meilisearch:

```shell
❯ meilisync check -t test

```

## Configuration

Here is an example configuration file:

```yaml
debug: true
plugins:
- meilisync.plugin.Plugin
progress:
type: file
source:
type: mysql
host: 192.168.123.205
port: 3306
user: root
password: "123456"
database: beauty
meilisearch:
api_url: http://192.168.123.205:7700
api_key:
insert_size: 1000
insert_interval: 10
sync:
- table: collection
index: beauty-collections
plugins:
- meilisync.plugin.Plugin
full: true
fields:
id:
title:
description:
category:
- table: picture
index: beauty-pictures
full: true
fields:
id:
description:
category:
sentry:
dsn: ""
environment: "production"
```

### debug (optional)

Enable debug mode, default is `false`, if you want to see more logs, you can set it to `true`.

### plugins (optional)

The plugins are used to customize the data before or after insert to Meilisearch and the plugins is a list of python
modules.

Which is a python class with `pre_event` and `post_event` methods, the `pre_event` method is called before insert to
Meilisearch, the `post_event` method is called after insert to Meilisearch.

```python
class Plugin:
is_global = False

async def pre_event(self, event: Event):
logger.debug(f"pre_event: {event}, is_global: {self.is_global}")
return event

async def post_event(self, event: Event):
logger.debug(f"post_event: {event}, is_global: {self.is_global}")
return event
```

The `is_global` is used to indicate whether the plugin instance is global, if set to `True`, the plugin instance will be
created only once, otherwise, the plugin instance will be created for each event.

### progress

The progress is used to record the last sync position, such as binlog position for MySQL.

- `type`: `file` or `redis`, if set to file, another option `path` is required.
- `path`: the file path to store the progress, default is `progress.json`.
- `key`: the redis key to store the progress, default is `meilisync:progress`.
- `dsn`: the redis dsn, default is `redis://localhost:6379/0`.

### source

Source database configuration, currently only support MySQL and PostgreSQL and MongoDB.

- `type`: `mysql` or `postgres` or `mongo`.
- `server_id`: the server id for MySQL binlog, default is `1`.
- `database`: the database name.
- `other keys`: the database connection arguments, MySQL see [asyncmy](https://github.com/long2ice/asyncmy), PostgreSQL
see [psycopg2](https://www.psycopg.org/docs/usage.html), MongoDB see [motor](https://motor.readthedocs.io/en/stable/).

### meilisearch

Meilisearch configuration.

- `api_url`: the Meilisearch API URL.
- `api_key`: the Meilisearch API key.
- `insert_size`: insert after collecting this many documents, optional.
- `insert_interval`: insert after this many seconds have passed, optional.

If nether `insert_size` nor `insert_interval` is set, it will insert each document immediately.

If you prefer performance, just set and increase `insert_size` and `insert_interval`. The insert will be made as long as
one of the conditions is met.

### sync

The sync configuration, you can add multiple sync tasks.

- `table`: the database table name or collection name.
- `index`: the Meilisearch index name, if not set, it will use the table name.
- `full`: whether to do a full sync, default is `false`.
- `fields`: the fields to sync, if not set, it will sync all fields. The key is table field name, the value is the
Meilisearch field name, if not set, it will use the table field name.
- `plugins`: the table level plugins, optional.

### sentry (optional)

Sentry configuration.

- `dsn`: the sentry dsn.
- `environment`: the sentry environment, default is `production`.

## License

This project is licensed under the
[Apache-2.0](https://github.com/meilisync/meilisync/blob/main/LICENSE) License.