diff --git a/ts.js b/ts.js
new file mode 100644
index 00000000..cfe81e96
--- /dev/null
+++ b/ts.js
@@ -0,0 +1,37 @@
+const fs = require('fs')
+const path = require('path')
+const glob = require('glob')
+const del = require('del')
+const { promisify } = require('util')
+const { compile } = require('flow-to-typescript')
+
+const globP = promisify(glob)
+
+// const path = 'path/to/file.js.flow'
+// const file = readFileSync(path, 'utf-8')
+async function main() {
+  // const files = await promisify(glob)('app/components/**/*.js')
+  // console.log(files)
+  // const files = await promisify(glob)('app/(containers)/**/*.js')
+  // const files = await globP('app/containers/**/+(styles|sagas|saga).js')
+  // const files = await globP('app/*.js')
+  // const files = await globP('app/styles/*.js')
+  // const files = await globP('app/containers/**/+(selector).js')
+  const files = await globP('app/containers/**/*.js')
+  for (const file of files) {
+    console.log(file)
+    const input = fs.readFileSync(file, 'utf8')
+    // console.log(file)
+    const result = await compile(input).catch(console.error)
+    // console.log(result)
+    const outputFile = file.replace(path.parse(file).ext, '.tsx')
+    // const outputFile = file.replace(path.parse(file).ext, '.ts')
+    fs.writeFileSync(outputFile, result)
+    await del(file)
+  }
+}
+
+main()
+// const files = fs.readdirSync(path.resolve(__dirname, 'app/components'))
+// console.log(files)
+// compile(file, path).then(ts => writeFileSync('path/to/file.ts', ts))