November 2021
Beginner to intermediate
239 pages
4h 15m
Chinese
Content preview from Dapr学习手册
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
74
｜
第
1
章
一旦收集到所需的信息，就可以定义
OAuth
中间件和自定义管道。中间件遵
循
OAuth
流程，然后将访问令牌注入到配置的
authHeaderName
头中。
1.5.5
编写自定义中间件
Dapr
的
HTTP
服务器使用的是
FastHTTP
（
https://oreil.ly/WtvKZ
），所以
Dapr
的
HTTP
中间件也被写成
FastHTTP handler
。
Dapr
定义了一个简单
的
Middleware
接口，它由一个
GetHandler
方法组成，返回一个
fasthttp.
RequestHandler
。
type Middleware interface {
GetHandler(metadata Metadata) (func(h fasthttp.RequestHandler)
fasthttp.RequestHandler, error)
}
实现应该返回一个函数，该函数接收下游请求
handler
并返回一个新的请求
handler
。然后你可以在下游
handler
周围插入入站（
inbound
）或 出 站（
outbound
）
逻辑，如下面的代码片段所示：
func GetHandler(metadata Metadata) fasthttp.RequestHandler {
return func(h fasthttp.RequestHandler) fasthttp.RequestHandler {
return func(ctx *fasthttp.RequestCtx) ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.