Let's "Go"

An Introduction to Programming in Go, presented by Paul Balogh, to the St. Louis CocoaHeads Meetup at the NISC offices in Lake St. Louis, January 28, 2020.

Transcript

1. LET’S “GO” An Introduction to Programming in Go ST. LOUIS COCOAHEADS @ LAKE ST LOUIS MO, JAN 28 2020 Paul Balogh Cloud Platform@NISC @javaducky
2. • Pronounce “BAY-LOG” • Cloud Platform Team Lead@NISC • Java Developer ~19 years, Software Engineer > 20 • Golang Enthusiast & Occasional OSS Contributor • Twitter/GitHub: @javaducky I AM NOT an expert! Paul Disclaimer: About Me
3. Agenda What is Go? Meet WeeSVC Demo What’s Next? Wrap Up 01 02 03 04 05
4. What is Go? SECTION 01
5. https://golang.org/ Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
6. What is Go? • Publicly announced by Google in November, 2009 • Created by Robert Griesemer, Rob Pike, and Ken Thompson • ThoughtWorks Technology Radar suggests Trial use in 2014; switches to Adopt 6 months later • Vibrant, inclusive community striving for diversity backed by the Go Community Code of Conduct • Development language for major Cloud Native projects: Kubernetes, Linkerd, Docker, Terraform, Vitess, etc. About Go...
7. What is Go? • Simple • Efficient • Reliable • Productive • Consistent • Popular About Go...
8. { Simplicity. Advertised due to the smaller number (25) of keywords and single binaries. In reality, more of a credo than a language feature. “Clear is better than clever.” What is Go?
9. Rob Pike … a desire to keep the language specification simple enough to hold in a programmer’s head.
10. { Efficiency. Compiles to native machine code (32- & 64-bit x86, ARM). Programs compile fast with a very small binary result. Built with concurrency in mind: goroutines and channels. What is Go?
11. { Reliability. Managed memory with Garbage Collection; pointer arithmetic not allowed. `defer` for use with cleanup code. What is Go?
12. { Productivity. Large standard library. Strong typing with type inference. Standardized test framework. What is Go?
13. { Consistency. Static analysis tools `gofmt` and `golint` for ensuring standard code and documentation format. “Gofmt’s style is no one’s favorite, yet gofmt is everyone’s favorite.” What is Go?
14. { Popularity. Go is the #4 language in use in GitHub behind JS, Python, and Java based upon “stars.” A trend driven by high-profile programs in the Cloud Native Computing Foundation (CNCF). What is Go?
15. What is Go? https://madnight.github.io/githut/#/stars/2019/4 Popularity
16. What is Go? Gophers are multiplying! Popularity
17. Meet WeeSVC SECTION 02
18. Helps you select an application framework by implementing a common service application with various languages and frameworks allowing for benchmark comparison. Wee S-V-C: a tiny service
19. About WeeSVC... Meet WeeSVC • First repo started May ‘19 with Java/SpringBoot • Like TodoMVC but for backend (micro)services • Many implementations; same use requirements • weesvc-gorilla is currently defining standard • It’s only me at this time Where it’s headed • Compatibility tests to ensure requirements met • Testing with simulated load for profiling • Website with published profiling results
20. Demo, weesvc-gorilla SECTION 03
21. THIS SLIDE INTENTIONALLY LEFT BLANK
22. What Next? SECTION 04
23. What Next? • Finalized “requirements” for functionality • Compatibility Suite to ensure service compliance • Updated weesvc-[springboot|micronaut|gokit] • Website with logo • Profiling Suite for comparative analysis And to appease the crowd... • weesvc-vapor written in Swift Coming Soon...
24. Wrap Up SECTION 05
25. Wrap Up • Go Developer Resources https://go.dev/ • GoDoc - Package Documentation https://godoc.org/ • Golang Weekly Newsletter https://golangweekly.com/ • Exercism - Code Practice and Mentorship https://exercism.io/ • Gopher Slack https://gophers.slack.com/ Resources
26. GopherCon June 22-25, 2020 Walt Disney World Dolphin Resort Orlando, Florida $1,095 Corporate $795 Self-Paid Wrap Up
27. Questions? StLGo Meetup 4th Wednesday/month Project WeeSVC github.com/weesvc Paul Balogh @javaducky ThankYou! Wrap Up