JSON Readable

Usage

File System

import JSONReadable, { JsonReadableFragment } from "json-readable";
import https from 'https'
import fs from 'fs'
import { Base64Encode } from 'base64-stream';

function get(url: string): Promise<JsonReadableFragment> {
  return new Promise<JsonReadableFragment>(resolve => {
    https.get(
      url,
      res => {
        const contentLength = Number(res.headers['content-length']);
        /**
         * Content-Length + Base64Encode calc
         */
        const size =
          Math.ceil((contentLength * 4) / 3) +
          ((3 - (contentLength % 3)) % 3);

        resolve(
          res.pipe(new Base64Encode())
            .pipe(new JsonReadableFragment(size))
        )
      }
    )
  })
}

void (async () => {
  new JSONReadable({
    files: [
      {
        name: 'Bulbasaur.png',
        content: get('https://e7.pngegg.com/pngimages/72/948/png-clipart-bulbasaur-pokemon-diamond-and-pearl-pokemon-go-pokedex-ivysaur-bulbasaur-pixel-vertebrate-grass.png')
      },
      {
        name: 'Squirtle.png',
        content: get('https://e7.pngegg.com/pngimages/700/421/png-clipart-pokemon-squirtle-squirtle-pokemon-games-pokemon.png')
      },
      {
        name: 'Charmander.png',
        content: get('https://e7.pngegg.com/pngimages/9/929/png-clipart-pokemon-charmander-pikachu-pokemon-x-and-y-charmander-charizard-charmander-food-orange.png')
      },
    ]
  }).pipe(fs.createWriteStream('output.json'))
})()

HTTP / HTTPS

import JsonReadable, { JsonReadableFragment } from "json-readable";
import https from 'https'
import { Base64Encode } from 'base64-stream';

function get(url: string): Promise<JsonReadableFragment> {
  return new Promise<JsonReadableFragment>(resolve => {
    https.get(
      url,
      res => {
        const contentLength = Number(res.headers['content-length']);
        /**
         * Content-Length + Base64Encode calc
         */
        const size =
          Math.ceil((contentLength * 4) / 3) +
          ((3 - (contentLength % 3)) % 3);

        resolve(
          res.pipe(new Base64Encode())
            .pipe(new JsonReadableFragment(size))
        )
      }
    )
  })
}

void (async () => {
  const jsonReadable = new JsonReadable({
    files: [
      {
        name: 'Bulbasaur.png',
        content: get('https://e7.pngegg.com/pngimages/72/948/png-clipart-bulbasaur-pokemon-diamond-and-pearl-pokemon-go-pokedex-ivysaur-bulbasaur-pixel-vertebrate-grass.png')
      },
      {
        name: 'Squirtle.png',
        content: get('https://e7.pngegg.com/pngimages/700/421/png-clipart-pokemon-squirtle-squirtle-pokemon-games-pokemon.png')
      },
      {
        name: 'Charmander.png',
        content: get('https://e7.pngegg.com/pngimages/9/929/png-clipart-pokemon-charmander-pikachu-pokemon-x-and-y-charmander-charizard-charmander-food-orange.png')
      },
    ]
  })

  const req = https.request({
    method: 'POST',
    host: '<hostname>',
    headers: {
      'Content-Type': 'application/json',
      'Content-Length': await jsonReadable.getContentLength()
    }
  })

  jsonReadable.pipe(req)
})()

Axios

import JsonReadable, { JsonReadableFragment } from "json-readable";
import { Base64Encode } from 'base64-stream';
import axios from 'axios'
import { Readable } from "stream";

async function get(url: string): Promise<JsonReadableFragment> {
  const response = await axios.get<Readable>(url, { responseType: 'stream' })

  const contentLength = Number(response.headers['Content-Length']);

  const size = Math.ceil((contentLength * 4) / 3) + ((3 - (contentLength % 3)) % 3);

  return response.data.pipe(new Base64Encode())
    .pipe(new JsonReadableFragment(size))
}

void (async () => {
  const jsonReadable = new JsonReadable({
    files: [
      {
        name: 'Bulbasaur.png',
        content: get('https://e7.pngegg.com/pngimages/72/948/png-clipart-bulbasaur-pokemon-diamond-and-pearl-pokemon-go-pokedex-ivysaur-bulbasaur-pixel-vertebrate-grass.png')
      },
      {
        name: 'Squirtle.png',
        content: get('https://e7.pngegg.com/pngimages/700/421/png-clipart-pokemon-squirtle-squirtle-pokemon-games-pokemon.png')
      },
      {
        name: 'Charmander.png',
        content: get('https://e7.pngegg.com/pngimages/9/929/png-clipart-pokemon-charmander-pikachu-pokemon-x-and-y-charmander-charizard-charmander-food-orange.png')
      },
    ]
  })

  await axios.post('<url>', jsonReadable, {
    headers: {
      'Content-Type': 'application/json',
      'Content-Length': await jsonReadable.getContentLength()
    }
  })
})()