Stream types

there's more than one you know :)

Stream Types

• Write
• Read
• Transform/Duplex

Stream Types

It's a stream you can write to:

You have met this before for sure:

router.use('/index', (req, res, next) => {

  res.send('HI')

  //in the source turns into

  //res.end('HI', encoding)<---- there you go, streams :)

}

Write

Stream Types

On WriteStreams you can `write` or `end`

Write

Streams use events

• Read: close data end error readable
• Write: close drain error finish drain pipe unpipe
• Transform: both of the above

Streams use events

• Read: close data end error readable
• Write: close drain error finish drain pipe unpipe
• Transform: both of the above

Yes:

Write stream has a finish event  

Read has an end event

¯\_ツ_/¯

Streams manage data

basically binary data

There are helpers though

and very good libraries

"Raw" streams

• Hard to get working the way you want them to
• Hard to combine efficiently

"Raw" streams

• Hard to get working the way you want them to
• Hard to combine efficiently

Enter `mississippi`

https://github.com/maxogden/mississippi

A lot of useful helpers

• pipe
• each
• pipeline
• duplex
• through
• from
• to
• concat
• finished
• parallel