depreciate jszip w/ native zlib compression

scripts/helpers/download.js

@@ -1,24 +1,14 @@
 import fs from 'fs'
-import Jszip from 'jszip'
+import zlib from 'zlib'
 import Web3 from 'web3'
+
 import networkConfig from '../../networkConfig'
 
-const jszip = new Jszip()
-
 export async function download({ name, directory, contentType }) {
-  const path = `${directory}${name}.zip`.toLowerCase()
+  const path = `${directory}${name}.gz`.toLowerCase()
 
   const data = fs.readFileSync(path)
-  const zip = await jszip.loadAsync(data)
-
-  const file = zip.file(
-    path
-      .replace(directory, '')
-      .slice(0, -4)
-      .toLowerCase()
-  )
-
-  const content = await file.async(contentType)
+  const content = zlib.inflateSync(data)
 
   return content
 }

scripts/helpers/save.js

@@ -1,33 +1,19 @@
 import fs from 'fs'
-import Jszip from 'jszip'
-
-const compressionConfig = {
-  type: "nodebuffer",
-  compression: "DEFLATE",
-  compressionOptions: {
-    level: 9
-  }
-}
-
-const fileConfig = {
-    binary: true,
-    compression: "DEFLATE"
-}
+import zlib from 'zlib'
 
 export async function save(filePath) {
-  const jszip = new Jszip()
   const directories = filePath.split('/')
   const fileName = directories[directories.length - 1]
 
   try {
     const data = fs.readFileSync(`${filePath}`)
 
-    await jszip.file(`${fileName}`, data, fileConfig)
-    await jszip.generateNodeStream({
-      ...compressionConfig,
-      streamFiles: true
+    const payload = await zlib.deflateSync(data, {
+      level: zlib.constants.Z_BEST_COMPRESSION,
+      strategy: zlib.constants.Z_FILTERED
     })
-    .pipe(fs.createWriteStream(`${filePath}.zip`))
+
+    fs.writeFileSync(`${filePath}.gz`, payload)
 
     return true
   } catch (err) {