GraphQL 在酒店系统上的实践

{"type":"doc","content":[{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"1 问题由来"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"关于我们 Node 服务产生了什么问题，为什么会出现这些问题，以及为何需要采用 GraphQL 去解决这些问题，是一个值得探究的过程。下面，我将从服务架构入手，简单介绍一下项目背景，而后通过几个案例，让大家更形象的理解我们现在的问题是如何产生的。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":3},"content":[{"type":"text","text":"1.1 服务架构简介"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image","attrs":{"src":"https:\/\/static001.infoq.cn\/resource\/image\/b0\/24\/b0731507d4c6d982d138105c53ba6024.png","alt":null,"title":null,"style":null,"href":null,"fromPaste":true,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"左边方框内属于我们前端团队的服务，右边属于后端服务。这里只是比较粗糙的架构，省略了一些负载均衡等细节，对于我司国内酒店服务来说，这里的图示就足以解释说明我们的问题。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"而我们 Node 组，是处于承接上下游的一个位置，是属于直接服务于前端的后端，也就是所谓的 BFF 层，关于这个架构的形成过程，我后面会展开解释。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"就目前而言，我们的主要职责是多端适配，UI 适配，版本控制，下发一些AB实验，日志收集等。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"虽然我上面说了许多职能，但是我认为我们最核心的职能，其实就是负责给客户端同学输送数据，那么我们输送数据的过程中会产生什么问题？为什么会产生这些问题，下面让我来举例说明一下。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":3},"content":[{"type":"text","text":"1.2 案例一：数据定制困难"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}}]}