lesson6.slide

HTTP & Friends
Lesson 6
30 May 2024
Tags: golang, go

Ivan Nečas <inecas@rehdat.com>
Red Hat, Inc.
email@email.email
https://github.com/RedHatOfficial/GoCourse
@RedHat

* Sources
- [[https://github.com/RedHatOfficial/GoCourse]]
.image ./common/qr_address.png

* Web services in Go

- one of he most common thing written in go these days
- largery used in http-based microservices 
- rich support for HTTP-related directly [[https://golang.org/pkg/net/http/][in the language]] (batteries included)

* Basic web server

.play lesson6/web_server.go

* Basic web server

- a global `http.DefaultServerMux` is used for registering handlers

* Web server with more control

.play lesson6/web_server_more_control.go /^func main/,/^}/

* Multiple paths

.play lesson6/web_server_multi.go

* Multiple paths

-  the longest prefix always wins

* Inspecting requests (cool trick)

.play lesson6/web_server_inspect.go

* Parsing requests: query

.play lesson6/web_server_params.go

* Parsing requests: raw body

.play lesson6/web_server_body.go

* Parsing requests: json

.play lesson6/web_server_json.go

* Parsing requests: json (2)

.play lesson6/web_server_json_2.go

* Headers and status codes

.play lesson6/web_server_headers.go

* Status codes (2)

.play lesson6/web_server_status_codes.go

* Client

.play lesson6/client.go

* Client (post)

.play lesson6/client_post.go /// Params/,/End OMIT/

* Proxy

.play lesson6/proxy.go

* Metrics

.plat lesson6/metrics.go