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This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including streaming-iterables. Try it out:
const { buffer, flatten, pipeline, transform } = require('streaming-iterables')
const got = require('got@11.8.1')
// A generator to fetch all the pokemon from the pokemon api
const pokedex = async function* () {
let offset = 0
while(true) {
const url = `https://pokeapi.co/api/v2/pokemon/?offset=${offset}`
const { results: pokemon } = await got(url).json()
if (pokemon.length === 0) {
return
}
offset += pokemon.length
yield pokemon
}
}
// lets buffer two pages so they're ready when we want them
const bufferTwo = buffer(2)
// a transform iterator that will load the monsters two at a time and yield them as soon as they're ready
const pokeLoader = transform(2, async ({ url }) => got(url).json())
// string together all our functions with a flatten to get one pokemon at a time
const pokePipe = pipeline(pokedex, bufferTwo, flatten, pokeLoader)
// lets do it team!
const run = async () => {
for await (const pokemon of pokePipe){
console.log(pokemon.name)
console.log(pokemon.sprites.front_default)
}
}
run().then(() => console.log('caught them all!'))
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