menjadi backend engineer

Transcript

1. Bootcamp Web Development menjadi backend engineer universitas pamulang 15 Oktober 2022
2. Bootcamp Web Development T: @edwinlab E: halo@edwinlab.dev Edwin Andrianto
3. Bootcamp Web Development DISCLAIMER 🙌 Saya tidak mewakili institusi mana pun, semua materi merupakan pendapat pribadi. Materi dimaksudkan untuk belajar bersama dan bersifat subjektif dan mungkin tidak sesuai dengan kondisi kalian. Segala resiko kesalahan penerjemahan maksud dari materi bukan menjadi tanggung jawab saya.
4. Bootcamp Web Development users see 💆 20% of total effort users dont see 💁 80% of total effort source: dev.to
5. Bootcamp Web Development Bootcamp Web Development backend frontend java go rust ruby phyton dll html css javascript
6. Bootcamp Web Development generalis spesialis source: pexels.com
7. Bootcamp Web Development apa itu backend engineer? 👊
8. Bootcamp Web Development backend APIs authentication & authorization DB cache system messaging web security CI/CD Containerization etc…
9. Bootcamp Web Development roadmap source: roadmap.sh/backend
10. Bootcamp Web Development
11. Bootcamp Web Development
12. Bootcamp Web Development
13. Bootcamp Web Development version control dengan git 🙏
14. Bootcamp Web Development github flow
15. Bootcamp Web Development first collaboration 💨 please fork, commit and make pull request from this repo: https://github.com/edwinlab/b
16. Bootcamp Web Development apa itu go?
17. Bootcamp Web Development feature - open source - typesafe - built-in concurrency - compiled - fast build - adopt by industries
18. Bootcamp Web Development run first code package main func main() { print("halo") } https://go.dev/play/ run: $ go run main.go build & execute: $ go build && ./main
19. Bootcamp Web Development variable var firstVar string var firstVar string = “hello” firstVar := “hello”
20. Bootcamp Web Development importing package main.go: package main import "fmt" func main() { fmt.Println("Hello, 世界") }
21. Bootcamp Web Development struct package main import "fmt" type car struct { brand string wheels int } func main() { var ionic car ionic.brand = "Hyundai" ionic.wheels = 4 fmt.Println("brand :", ionic.brand) fmt.Println("wheel :", ionic.wheels) }
22. Bootcamp Web Development array type Car struct { ID string `json:"id"` Brand string `json:"brand"` Type string `json:"type"` } var cars = []Car{ {ID: "1", Brand: "Honda", Type: "City"}, {ID: "2", Brand: "Hyundai", Type: "Ionic 5"}, }
23. Bootcamp Web Development function package main import "fmt" func printMessage(message string) { fmt.Println(message) } func main() { printMessage("hello") } package main import "fmt" func twoReturn(i int) (int, int) { return i + 1, i + 2 } func main() { fmt.Println(twoReturn(10)) }
24. Bootcamp Web Development error = value property .Error() return as string func errAsString(err error) string { return err.Error() }
25. Bootcamp Web Development visibility visible: func ThisPublic(){} not visible: func thisPrivate(){}
26. Bootcamp Web Development concurrency
27. Bootcamp Web Development goroutine package main import ( "fmt" "runtime" "time" ) func run(message string) { for i := 0; i < 5; i++ { time.Sleep(3 * time.Second) fmt.Println(message) } } func main() { runtime.GOMAXPROCS(2) go run("goroutine") run("sequence") } package main import ( "fmt" "runtime" "time" ) func channel(ch chan string, message string) { time.Sleep(3 * time.Second) var data = fmt.Sprintf(message) ch <- data } func main() { runtime.GOMAXPROCS(2) var messages = make(chan string) go channel(messages, "channel 1") go channel(messages, "channel 2") go channel(messages, "channel 3") var message1 = <-messages fmt.Println(message1) var message2 = <-messages fmt.Println(message2) var message3 = <-messages fmt.Println(message3) } channel
28. Bootcamp Web Development membangun RESTful api dengan go 💪
29. Bootcamp Web Development application programming interface (API) s: ajwadinfotech.com
30. Bootcamp Web Development trends s: trends.google.co.id
31. Bootcamp Web Development REST REpresentational State Transfer - client-server architecture - stateless - cacheable - layered system
32. Bootcamp Web Development RESTFul API GET http://api.aplikasimu.com/v1/messages/1 POST http://api.aplikasimu.com/v1/messages PUT http://api.aplikasimu.com/v1/messages/1 DELETE http://api.aplikasimu.com/v1/messages/1
33. Bootcamp Web Development example $ curl --header "Content-Type: application/json"\ --request POST\ --data '{"username":"xyz","password":"xyz"}'\ http://localhost:3000/api/v1/users?page=1 < HTTP/1.1 200 OK < Content-Type: application/json; < {"message":"Hello World!"}
34. Bootcamp Web Development framework go source: https://github.com/mingrammer/go-web-framework-stars
35. Bootcamp Web Development install go https://go.dev/doc/install $ go version
36. Bootcamp Web Development go modules $ mkdir rest-api $ cd rest-api $ go mod init rest-api
37. Bootcamp Web Development first api package main import ( "net/http" "github.com/gin-gonic/gin" ) func main() { r := gin.New() r.GET("/", func(c *gin.Context) { c.JSON(http.StatusOK, gin.H{ "message": "Hello World!", }) }) r.Run() } $ go get $ go mod tidy $ go run main.go
38. Bootcamp Web Development lets code 👀 github.com/edwinlab/gin-api
39. Bootcamp Web Development debugging code 👻
40. Bootcamp Web Development go get github.com/go-delve/delve/cmd/dlv
41. Bootcamp Web Development deploy code 🌩
42. Bootcamp Web Development what’s next? - automation testing - secure api (jwt) - telemetry (traces, metric, log) - CI/CD - api documentation - many more…
43. Bootcamp Web Development T: @edwinlab E: halo@edwinlab.dev terima kasih