# 后端部署概述

<figure><img src="/files/tWXkz2Jd2yTDoJNNI19a" alt=""><figcaption></figcaption></figure>

Babylon比特币质押系统由以下组件组成：

* [**质押索引器**](/babylon-docs/user-guides/bitcoin-staking-phase1/backend-deployment/services/staking-indexer.md)：解析比特币网络区块中的有效质押、解质押和提款交易，将相关事件转发到交易队列系统，并将其保存到磁盘上的键值存储中。
* [**RabbitMQ**](/babylon-docs/user-guides/bitcoin-staking-phase1/backend-deployment/infra/rabbitmq.md)：存储打包BTC质押交易的队列。
* [**质押API**](/babylon-docs/user-guides/bitcoin-staking-phase1/backend-deployment/services/staking-api.md)：从RabbitMQ队列中提取来自消费者链的BTC质押交易，并将其存储在中央数据库中，同时负责接受解除质押请求。
* [**MongoDB**](/babylon-docs/user-guides/bitcoin-staking-phase1/backend-deployment/infra/mongodb.md)：存储BTC质押交易数据。
* [**质押期限检查器**](/babylon-docs/user-guides/bitcoin-staking-phase1/backend-deployment/services/staking-expiry-checker.md)：定期检查MongoDB数据库中是否有过期的BTC质押、委托和解除质押记录。
* [**解除质押流水线**](/babylon-docs/user-guides/bitcoin-staking-phase1/backend-deployment/services/staking-expiry-checker.md)：将解除质押请求转发至Covenant模拟器委员会签名，并将结果提交到比特币网络。
* [**质押仪表盘**](https://github.com/babylonlabs-io/simple-staking)：用于创建BTC质押交易的用户界面，连接到API以检索相关系统数据和历史委托信息。
* [**Covenant签名者**](https://github.com/babylonlabs-io/covenant-signer)：由Covenant委员会成员操作，接收解除质押交易，并返回由Covenant模拟器密钥签名的相同交易。
* [**比特币全节点**](/babylon-docs/user-guides/bitcoin-staking-phase1/backend-deployment/infra/bitcoind.md)：验证质押交易是否已提交到比特币网络，是否已获得所需数量的比特币网络确认。
* [**比特币离线钱包**](https://github.com/babylonlabs-io/covenant-signer)：存储Covenant签名者的成员密钥，并对Covenant签名者转发的解除质押交易进行签名。Covenant签名者需要运行一个比特币钱包，连接到比特币节点。详细的设置指南请参考[Covenant 签名者设置部署](https://github.com/babylonlabs-io/covenant-signer)。
* [**全局配置文件**](/babylon-docs/user-guides/bitcoin-staking-phase1/backend-deployment/global-params.md)：包含与已处理质押交易相关的系统范围内的所有参数。
* [**最终性提供者配置文件**](/babylon-docs/user-guides/bitcoin-staking-phase1/backend-deployment/global-params.md)：将最终性提供者的比特币网络地址与其个人信息 (如名称、奖励等) 相关联。


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