Streams are Node’s best and most misunderstood idea. In this talk, I try to explain the concept of streams as simple as possible. We also do live coding and solve some real time problems using streams.

1. The Power of Streams in
Node JS
Jawahar
ThoughtWorks
www.jawahar.tech

2. File Compression

3. Streams are collection of data - but not
available all at once.
List / Array Streams

4. Readable Stream
fs.createReadStream

5. Writable Stream
fs.createWriteStream

6. Duplex Stream
net.Socket

7. Transform Stream
zlib.createGzip

8. Composability
Kubectl get pods
| grep "Running"
| grep “container-1”
Ex: Linux Command Piping

9. Composability

10. Composability

11. Event Emitters

12. Event Emitters

13. Event Emitters
Readable Streams
➔ data
➔ close
➔ error
Writable Streams
➔ drain
➔ close
➔ error

14. Backpressure
Produce faster than consume

15. Backpressure

16. Backpressure

17. Backpressure

18. Backpressure

19. Task Management
Systems
gulp.src(paths.scripts.src)
.pipe(babel())
.pipe(uglify())
.pipe(concat('main.min.js'))
.pipe(gulp.dest(paths.scripts.dest));
Use Cases

20. Reactive
Programming
Rx.Observable
.fromEvent(button, 'click')
.bufferCount(3)
.bufferWhen(() => click.delay(400))
.filter(events => events.length >= 3)
.subscribe(console.log);
Use Cases
highland.js

21. Log Aggregation
Use Cases

22. Thank You !!
Jawahar
ThoughtWorks
www.jawahar.tech