diff --git a/src/utils/api/index.ts b/src/utils/api/index.ts
index d89e12d..1c6776d 100644
--- a/src/utils/api/index.ts
+++ b/src/utils/api/index.ts
@@ -7,16 +7,13 @@ import { IRoute } from '~/redux/map/types';
 import { INominatimResult } from '~/redux/types';
 import { api } from './instance';
 import { postMapInterceptor } from '~/utils/api/interceptors';
-import { CheckTokenRequest, CheckTokenResult, PostMapRequest, PostMapResponse } from '~/utils/api/types';
-
-interface IGetRouteList {
-  min: number;
-  max: number;
-  tab: string;
-  search: string;
-  step: IRootState['routes']['step'];
-  shift: IRootState['routes']['step'];
-}
+import {
+  CheckTokenRequest,
+  CheckTokenResult,
+  GetGuestTokenResult, GetRouteListRequest, GetRouteListResponse, GetStoredMapRequest, GetStoredMapResult,
+  PostMapRequest,
+  PostMapResponse,
+} from '~/utils/api/types';
 
 export const checkUserToken = ({
   id,
@@ -29,22 +26,13 @@ export const checkUserToken = ({
 
 export const getGuestToken = () =>
   api
-    .get<{
-      user: IUser;
-      random_url: string;
-    }>(API.GET_GUEST);
+    .get<GetGuestTokenResult>(API.GET_GUEST);
 
 export const getStoredMap = ({
   name,
-}: {
-  name: IRoute['address'];
-}) =>
+}: GetStoredMapRequest) =>
   api
-    .get<{
-      route: IRoute;
-      error?: string;
-      random_url: string;
-    }>(API.GET_MAP, {
+    .get<GetStoredMapResult>(API.GET_MAP, {
       params: { name },
     });
 
@@ -103,22 +91,9 @@ export const getRouteList = ({
   tab,
   step,
   shift,
-}: IGetRouteList) =>
+}: GetRouteListRequest) =>
   api
-    .get<{
-      routes: IRoute[];
-      limits: {
-        min: number;
-        max: number;
-        count: number;
-      };
-      filter: {
-        min: number;
-        max: number;
-        shift: number;
-        step: number;
-      };
-    }>(
+    .get<GetRouteListResponse>(
       API.GET_ROUTE_LIST(tab),
       {
         params: {
diff --git a/src/utils/api/types.ts b/src/utils/api/types.ts
index b0ded9a..48dbf1e 100644
--- a/src/utils/api/types.ts
+++ b/src/utils/api/types.ts
@@ -22,3 +22,42 @@ export interface CheckTokenRequest {
   id: IRootState['user']['id'];
   token: string,
 }
+
+export interface GetGuestTokenResult {
+  user: IUser;
+  random_url: string;
+}
+
+export interface GetStoredMapResult {
+  route: IRoute;
+  error?: string;
+  random_url: string;
+}
+
+export interface GetStoredMapRequest {
+  name: IRoute['address'];
+}
+
+export interface GetRouteListRequest {
+  min: number;
+  max: number;
+  tab: string;
+  search: string;
+  step: IRootState['routes']['step'];
+  shift: IRootState['routes']['step'];
+}
+
+export interface GetRouteListResponse {
+  routes: IRoute[];
+  limits: {
+    min: number;
+    max: number;
+    count: number;
+  };
+  filter: {
+    min: number;
+    max: number;
+    shift: number;
+    step: number;
+  };
+}
diff --git a/src/utils/geom.ts b/src/utils/geom.ts
index bfc3341..02afe02 100644
--- a/src/utils/geom.ts
+++ b/src/utils/geom.ts
@@ -1,9 +1,4 @@
-import { LatLng, LatLngLiteral, point, Point, PointExpression, latLng } from 'leaflet';
-
-// interface LatLng {
-//   lat: number;
-//   lng: number;
-// }
+import { LatLng, latLng, LatLngLiteral, Point, point } from 'leaflet';
 
 export const middleCoord = (l1: LatLng, l2: LatLng): LatLng => latLng({
   lat: l2.lat + (l1.lat - l2.lat) / 2,
@@ -46,14 +41,14 @@ export const findDistance = (t1: number, n1: number, t2: number, n2: number): nu
 export const findDistanceHaversine = (t1: number, n1: number, t2: number, n2: number): number => {
   const R = 6371; // km
   const dLat = ((t2 - t1) * Math.PI) / 180;
-  var dLon = ((n2 - n1) * Math.PI) / 180;
-  var a =
+  const dLon = ((n2 - n1) * Math.PI) / 180;
+  const a =
     Math.sin(dLat / 2) * Math.sin(dLat / 2) +
     Math.cos((t1 * Math.PI) / 180) *
       Math.cos((t2 * Math.PI) / 180) *
       Math.sin(dLon / 2) *
       Math.sin(dLon / 2);
-  var c = 2 * Math.asin(Math.sqrt(a));
+  const c = 2 * Math.asin(Math.sqrt(a));
   return R * c;
 };
 
@@ -88,7 +83,7 @@ export const dist2 = (A: LatLngLiteral, B: LatLngLiteral): number =>
 
 const distToSegmentSquared = (A: LatLng, B: LatLng, C: LatLng): number => {
   const l2 = dist2(A, B);
-  if (l2 == 0) return dist2(C, A);
+  if (l2 === 0) return dist2(C, A);
 
   const t = Math.max(
     0,
diff --git a/src/utils/history.ts b/src/utils/history.ts
index c2435c9..e203911 100644
--- a/src/utils/history.ts
+++ b/src/utils/history.ts
@@ -1,13 +1,5 @@
 import { history } from '~/redux/store';
-import {API_RETRY_INTERVAL} from "~/constants/api";
-
-interface IUrlData {
-  path: string,
-  mode: 'edit' | '',
-  host: string,
-  hash: string,
-  protocol: 'http' | 'https',
-}
+import { API_RETRY_INTERVAL } from '~/constants/api';
 
 export const getPath = (): string => (window.location && window.location.pathname);
 export const pushPath = (url: string): string => history.push(url);
diff --git a/src/utils/map/InteractivePoly.ts b/src/utils/map/InteractivePoly.ts
index fa445bc..70aac65 100644
--- a/src/utils/map/InteractivePoly.ts
+++ b/src/utils/map/InteractivePoly.ts
@@ -507,7 +507,7 @@ class InteractivePoly extends Polyline {
     const index = this.markers.indexOf(target);
     const latlngs = this.getLatLngs();
 
-    if (typeof index === 'undefined' || latlngs.length == 0) return;
+    if (typeof index === 'undefined' || latlngs.length === 0) return;
 
     this.dropMarkerDistanceChange(index);
     this._map.removeLayer(this.markers[index]);
diff --git a/src/utils/map/OsrmRouter.ts b/src/utils/map/OsrmRouter.ts
index 1b3a461..6da8fd8 100644
--- a/src/utils/map/OsrmRouter.ts
+++ b/src/utils/map/OsrmRouter.ts
@@ -35,7 +35,7 @@ export const OsrmRouter = Routing.control({
   show: false,
   plan: Routing.plan([], {
     createMarker: (_, wp) => {
-      const marker = new Marker(wp.latLng, {
+      return new Marker(wp.latLng, {
         draggable: true,
         icon: createWaypointMarker(),
       })
@@ -45,12 +45,10 @@ export const OsrmRouter = Routing.control({
           OsrmRouter.setWaypoints(
             OsrmRouter.getWaypoints().filter(
               point =>
-                !point.latLng || (point.latLng.lat != latlng.lat && point.latLng.lng != latlng.lng)
+                !point.latLng || (point.latLng.lat !== latlng.lat && point.latLng.lng !== latlng.lng)
             )
           );
         });
-
-      return marker;
     },
     routeWhileDragging: false,
   }),
diff --git a/src/utils/reducer.ts b/src/utils/reducer.ts
index 1121914..46e5a2d 100644
--- a/src/utils/reducer.ts
+++ b/src/utils/reducer.ts
@@ -1,10 +1,3 @@
-// create-reducer.ts
-import { Action } from 'redux';
-
-type Handlers<State, Types extends string, Actions extends Action<Types>> = {
-  readonly [Type in Types]: (state: State, action: Actions) => State
-}
-
 export const createReducer = (
   initialState,
   handlers,
diff --git a/src/utils/renderer.ts b/src/utils/renderer.ts
index f76f0bc..1620790 100644
--- a/src/utils/renderer.ts
+++ b/src/utils/renderer.ts
@@ -1,18 +1,10 @@
-// import { editor } from '~/modules/Editor';
-import { COLORS, CLIENT } from '~/config/frontend';
+import { CLIENT, COLORS } from '~/config/frontend';
 import saveAs from 'file-saver';
 import { replaceProviderUrl } from '~/constants/providers';
 import { STICKERS } from '~/constants/stickers';
-import { IRoute } from '~/redux/map/types';
-import { IStickerDump } from '~/redux/map/types';
-import { IRootState } from '~/redux/user';
-import {
-  angleBetweenPoints,
-  angleBetweenPointsRad,
-  findDistancePx,
-  middleCoordPx,
-} from '~/utils/geom';
-import { Point, LatLng, latLng } from 'leaflet';
+import { IRoute, IStickerDump } from '~/redux/map/types';
+import { angleBetweenPoints, angleBetweenPointsRad, findDistancePx, middleCoordPx } from '~/utils/geom';
+import { LatLng, latLng, Point } from 'leaflet';
 import { MainMap } from '~/constants/map';
 
 export interface ITilePlacement {
diff --git a/src/utils/simplify.ts b/src/utils/simplify.ts
index 4c20705..1ed303d 100644
--- a/src/utils/simplify.ts
+++ b/src/utils/simplify.ts
@@ -1,4 +1,4 @@
-import { Map, LineUtil, LatLng } from 'leaflet';
+import { LatLng, LineUtil } from 'leaflet';
 import { MainMap } from '~/constants/map';
 
 export const simplify = (latlngs: LatLng[]): LatLng[] => {