diff --git a/src/modules/api/submodules/qminingapi.ts b/src/modules/api/submodules/qminingapi.ts
index 5b954a4..273f98c 100644
--- a/src/modules/api/submodules/qminingapi.ts
+++ b/src/modules/api/submodules/qminingapi.ts
@@ -1,4 +1,5 @@
 import fs from 'fs'
+import { fork } from 'child_process'
 
 import logger from '../../../utils/logger'
 import utils from '../../../utils/utils'
@@ -600,7 +601,7 @@ function setup(data: SubmoduleData): any {
 
     if (!req.body.questions) {
       res.json({
-        message: `ask something! { question:'' ,subject:'', location:'' }`,
+        message: `ask something! { questions:'' ,subject:'', location:'' }`,
         result: [],
         recievedData: JSON.stringify(req.body),
         success: false,
@@ -1006,6 +1007,57 @@ function setup(data: SubmoduleData): any {
     })
   })
 
+  let questionCleaner = null
+  app.get('/clearQuestions', (req: Request, res) => {
+    // TODO: dont allow multiple instances
+    // TODO: get status of it cleaning
+    logger.LogReq(req)
+    const user: User = req.session.user
+    const status: any = req.query.status
+
+    if (status) {
+      if (!questionCleaner) {
+        res.json({
+          msg: 'question cleaner not running',
+          success: false,
+        })
+        return
+      }
+      questionCleaner.once('message', function (response) {
+        res.json({
+          msg: response,
+          success: true,
+        })
+      })
+
+      questionCleaner.send({ data: 'asd' })
+      return
+    }
+
+    if (questionCleaner) {
+      res.json({
+        msg: 'question cleaner already running',
+        success: false,
+      })
+      return
+    }
+
+    questionCleaner = fork(
+      `${process.cwd()}/src/standaloneUtils/rmDuplicates.js`,
+      ['-s', `${process.cwd()}/${questionDbs[0].path}`]
+    )
+    questionCleaner.on('exit', function (code) {
+      console.log('EXIT', code)
+      questionCleaner = null
+    })
+
+    res.json({
+      user: user,
+      success: true,
+      msg: 'OK',
+    })
+  })
+
   return {
     dailyAction: () => {
       backupData(questionDbs)
diff --git a/src/standaloneUtils/rmDuplicates.js b/src/standaloneUtils/rmDuplicates.js
index e09cdec..2526bde 100644
--- a/src/standaloneUtils/rmDuplicates.js
+++ b/src/standaloneUtils/rmDuplicates.js
@@ -41,7 +41,30 @@ const globalLog = './duplicateRemovingLog/log'
 utils.CreatePath(logPath)
 utils.WriteFile('', globalLog)
 
-const params = process.argv.splice(2)
+// ----------------------------------------------
+let currentMaxIndex = -1
+let currentIndex = -1
+process.on('message', function () {
+  process.send({
+    currentMaxIndex: currentMaxIndex,
+    currentIndex: currentIndex,
+  })
+})
+// ----------------------------------------------
+
+let params = process.argv.splice(2)
+let silenced = false
+if (params.includes('-s')) {
+  silenced = true
+}
+params = params.filter((x) => {
+  return !x.startsWith('-')
+})
+console.log(params)
+if (params.length === 0) {
+  console.log('At least 1 parameter required (path to DB)')
+  process.exit(1)
+}
 
 const pathA = params[0]
 const pathB = params[1]
@@ -268,6 +291,7 @@ function difference({ dbA, dbB }) {
   iterateSubjects(dbA, () => {
     dbLength++
   })
+  currentMaxIndex = dbLength
 
   const getResultDbLength = () => {
     let resultDbLength = 0
@@ -303,6 +327,7 @@ function difference({ dbA, dbB }) {
 
       printProgressBar(processedQuestions, dbLength)
       processedQuestions++
+      currentIndex = processedQuestions
 
       const res = hasRequiredPercent(searchRes, minpercent)
 
@@ -408,6 +433,7 @@ function hr() {
 
 function log(text) {
   utils.AppendToFile(text, globalLog)
+  if (silenced) return
   if (process.stdout.isTTY) {
     process.stdout.clearLine()
     process.stdout.cursorTo(0)
@@ -431,7 +457,7 @@ function writeInSameLine(text, returnToLineStart) {
 }
 
 function printProgressBar(current, total) {
-  if (!process.stdout.isTTY) {
+  if (!process.stdout.isTTY || silenced) {
     return
   }
   const width = process.stdout.columns - 30
@@ -462,3 +488,5 @@ function printProgressBar(current, total) {
 function C(color) {
   return logger.C(color)
 }
+
+process.exit()