diff --git a/modules/hudozka-api/src/lib/date.ts b/modules/hudozka-api/src/lib/date.ts
new file mode 100644
index 00000000..2d5b7473
--- /dev/null
+++ b/modules/hudozka-api/src/lib/date.ts
@@ -0,0 +1,18 @@
+import moment from 'moment'
+moment.locale('ru')
+
+/**
+ *
+ * Date -> DD.MM.YYYY
+ *
+ * @param date
+ */
+export const dateFormat = (date: string | Date) => moment(date).format('L')
+
+/**
+ *
+ * Date -> Unix time
+ *
+ * @param date
+ */
+export const timestamp = (date: Date) => date.getTime()
diff --git a/modules/hudozka-api/src/lib/file.ts b/modules/hudozka-api/src/lib/file.ts
new file mode 100644
index 00000000..504cc26d
--- /dev/null
+++ b/modules/hudozka-api/src/lib/file.ts
@@ -0,0 +1,23 @@
+const getExt = (name: string) => /\.(\w+)$/.exec(name)[1]
+const defaultExt = (ext: string) => ext.toUpperCase()
+const exts = ['png', 'pdf', 'jpg', 'jpeg', 'gif', 'doc']
+const extd = ['ПНГ', 'ПДФ', 'ЖПГ', 'ЖПГ', 'ГИФ', 'ДОК']
+const units = ['байт', 'КБ', 'МБ', 'ГБ', 'ТБ', 'ПБ']
+
+export function ext(filname: string): string {
+    const ext = getExt(filname)
+    const i = exts.indexOf(ext)
+
+    return i > -1
+        ? extd[i]
+        : defaultExt(ext)
+}
+
+export function size(bytes: any, precision = 1): string {
+    if (isNaN(parseFloat(bytes)) || !isFinite(bytes)) return ''
+
+    const number = Math.floor(Math.log(bytes) / Math.log(1024))
+    const size = (bytes / Math.pow(1024, Math.floor(number))).toFixed(precision)
+
+    return `${size} ${units[number]}`
+}
diff --git a/modules/hudozka-api/src/lib/sort.js b/modules/hudozka-api/src/lib/sort.js
new file mode 100644
index 00000000..3fa95c00
--- /dev/null
+++ b/modules/hudozka-api/src/lib/sort.js
@@ -0,0 +1,37 @@
+function prioritySort(priority, key, list) {
+	priority = priority.reverse()
+
+	let weight = i => {
+		const p = key(i)
+		const index = priority.indexOf(p)
+		return index > -1
+			? index + 1
+			: 0
+	}
+
+	return sort(list, weight)
+}
+
+function sort(list, fn, reverse = false) {
+	return list
+		.map(i => [fn(i), i])
+		.sort((a, b) => reverse
+			? a[0] - b[0]
+			: b[0] - a[0])
+		.map(i => i[1])
+}
+
+function sortBy(fn, reverse = false) {
+	return (i1, i2) => {
+		const t1 = fn(i1)
+		const t2 = fn(i2)
+
+		return reverse
+			? t1 - t2
+			: t2 - t1
+	}
+}
+
+exports.prioritySort = prioritySort
+exports.sortBy = sortBy
+exports.sort = sort
diff --git a/modules/hudozka-api/src/lib/store.ts b/modules/hudozka-api/src/lib/store.ts
new file mode 100644
index 00000000..309848bd
--- /dev/null
+++ b/modules/hudozka-api/src/lib/store.ts
@@ -0,0 +1,19 @@
+export async function find(collection, query, {sort, skip, limit}) {
+	const cursor = collection.find(query)
+
+	if (sort) cursor.sort(sort)
+	if (skip) cursor.skip(skip)
+	if (limit) cursor.limit(limit)
+
+	return cursor.toArray()
+}
+
+export async function findOne(collection, query) {
+	return collection.findOne(query)
+}
+
+export async function total(collection, query) {
+	return collection
+		.find(query)
+		.count()
+}
diff --git a/modules/hudozka-api/src/lib/string.js b/modules/hudozka-api/src/lib/string.js
new file mode 100644
index 00000000..9a8a5493
--- /dev/null
+++ b/modules/hudozka-api/src/lib/string.js
@@ -0,0 +1,12 @@
+function titleCase(str) {
+	return str.charAt(0).toUpperCase() + str.slice(1)
+}
+
+function trim(string) {
+	return string
+		.replace(/^\s+/, '')
+		.replace(/\s+$/, '')
+}
+
+exports.titleCase = titleCase
+exports.trim = trim
diff --git a/modules/hudozka-api/src/lib/url.js b/modules/hudozka-api/src/lib/url.js
new file mode 100644
index 00000000..d68c640d
--- /dev/null
+++ b/modules/hudozka-api/src/lib/url.js
@@ -0,0 +1,40 @@
+function getPathWithNoTrailingSlash(path='') {
+	path = path.charAt(path.length - 1) === '/'
+		? path.substr(0, path.length - 1)
+		: path
+	return path.length === 0
+		? '/'
+		: path
+}
+
+function isEqualPath(a, b, ignoreTrailingSlash = false) {
+	return ignoreTrailingSlash
+		? getPathWithNoTrailingSlash(a) === getPathWithNoTrailingSlash(b)
+		: a === b
+}
+
+function isMatchPathPattern(pattern, path, ignoreTrailingSlash = false) {
+	const test = ignoreTrailingSlash
+		? getPathWithNoTrailingSlash(path)
+		: path
+	return pattern.test(test)
+}
+
+/**
+ *
+ * /article/* -> ^\/article\/[/\w\d-_]+\/?$
+ *
+ * @param url
+ * @return {RegExp}
+ */
+function urlToPattern(url) {
+	const u = url.replace('/*', '[/\\w\\d-_]+')
+	const pattern = `^${u}/?$`
+
+	return new RegExp(pattern)
+}
+
+exports.getPathWithNoTrailingSlash = getPathWithNoTrailingSlash
+exports.isMatchPathPattern = isMatchPathPattern
+exports.urlToPattern = urlToPattern
+exports.isEqualPath = isEqualPath
diff --git a/modules/hudozka-api/src/models/course.js b/modules/hudozka-api/src/models/course.js
new file mode 100644
index 00000000..35c33679
--- /dev/null
+++ b/modules/hudozka-api/src/models/course.js
@@ -0,0 +1,22 @@
+const courses = {
+	painting: ['Живопись', ''],
+	drawing: ['Рисунок', '/courses/drawing'],
+	sculpting: ['Скульптура', ''],
+	sculpture: ['Скульптура', ''],
+	ceramic: ['Керамика', '/courses/ceramics'],
+	ceramics: ['Керамика', '/courses/ceramics'],
+	composition: ['Композиция', ''],
+	'easel-composition': ['Станковая композиция', ''],
+	dpi: ['ДПИ', ''],
+	'art-talks': ['Беседа по искусству', ''],
+	history: ['История искусства', '/courses/art-history'],
+	cg: ['Комп. графика', '/courses/cg'],
+}
+
+export function getCourse(id) {
+	const course = id in courses ? courses[id] : null
+	if (!course) return null
+
+	const [title, url] = course
+	return {id, title, url}
+}
diff --git a/modules/hudozka-api/src/models/schedule.js b/modules/hudozka-api/src/models/schedule.js
new file mode 100644
index 00000000..7acdde25
--- /dev/null
+++ b/modules/hudozka-api/src/models/schedule.js
@@ -0,0 +1,44 @@
+export const autumnMonth = 8;
+export const springMonth = 0;
+
+export function scheduleDate(schedule){
+    let {period, semester} = schedule;
+
+    let i = semester === 'spring' ? 1 : 0;
+    let year = getPeriod(period)[i];
+
+    return new Date(
+        year,
+        i ? springMonth : autumnMonth,
+        1
+    );
+}
+
+/**
+ *
+ * f("2012-2015") -> [2012, 2015]
+ * f(["2012", "2015"]) -> [2012, 2015]
+ * f([2012, 2015]) -> [2012, 2015]
+ *
+ * @param i
+ * @returns {*}
+ */
+export function getPeriod(i){
+    if (typeof i === 'string') return getPeriod(i.split('-'));
+
+    return i.map(Number);
+}
+
+/**
+ *
+ * f("2012-2015") -> "2012-2015"
+ * f(["2012", "2015"]) -> "2012-2015"
+ * f([2012, 2015]) -> "2012-2015"
+ *
+ * @param i
+ * @returns {*}
+ */
+export function getPeriodString(i) {
+	return getPeriod(i)
+		.join('-')
+}
diff --git a/modules/hudozka-api/src/server/articles.ts b/modules/hudozka-api/src/server/articles.ts
new file mode 100644
index 00000000..2dbca9f5
--- /dev/null
+++ b/modules/hudozka-api/src/server/articles.ts
@@ -0,0 +1,71 @@
+import Article from '../core/Article'
+import ImageArtifactType from '../core/ImageArtifactType'
+import { sortBy } from '../utils/sort'
+import { timestamp } from '../lib/date'
+import { encodeImage } from '../factory/image'
+
+export const sortArticleByDate = sortBy(
+    x => timestamp(new Date(x.date))
+)
+
+export async function findArticlesNin(nin, skip, limit, sort) {
+    const query = {
+        _id: { $nin: nin }
+    }
+
+    return Article.find(query, {
+        sort,
+        skip,
+        limit,
+    })
+}
+
+export async function findArticles(page: number, pageSize: number) {
+    const limit = pageSize
+    const skip = (page - 1) * pageSize
+
+    const pinnedArticles = page === 1
+        ? await Article.findPinned()
+        : []
+
+    const total = await Article.total()
+    const totalPages = Math.ceil(total / pageSize)
+
+    const id = i => i._id
+    const pinnedIds = pinnedArticles.map(id)
+    const articles = await findArticlesNin(pinnedIds, skip, limit, { date: -1 })
+
+    const prevPage = page > 1
+        ? page - 1
+        : null
+
+    const nextPage = page < totalPages
+        ? page + 1
+        : null
+
+    const items = [
+        ...pinnedArticles.sort(sortArticleByDate),
+        ...articles
+    ]
+        .map(x => x.plain())
+        .map(x => ({
+            ...x,
+            preview: !x.preview ? null : (
+                x.preview.getPicture(ImageArtifactType.MEDIUM)
+            )
+        }))
+
+    return {
+        items,
+        prevPage,
+        nextPage,
+        totalPages,
+    }
+}
+
+export function encodeArticle(article) {
+    return {
+        ...article,
+        preview: encodeImage(article.preview),
+    }
+}
\ No newline at end of file
diff --git a/modules/hudozka-api/src/server/collective.js b/modules/hudozka-api/src/server/collective.js
new file mode 100644
index 00000000..98dfb699
--- /dev/null
+++ b/modules/hudozka-api/src/server/collective.js
@@ -0,0 +1,18 @@
+const { collection } = require('../db')
+// import { collection } from '../core/db'
+
+export async function getCollective(query = {}) {
+    return await collection('collective')
+        .find(query)
+        .toArray();
+}
+
+/**
+ * Find a person by it's id
+ *
+ * @param id
+ * @returns {Promise|*}
+ */
+export async function getPerson(id) {
+    return await collection('collective').findOne({ id: id });
+}
diff --git a/modules/hudozka-api/src/server/lib.ts b/modules/hudozka-api/src/server/lib.ts
new file mode 100644
index 00000000..898a1080
--- /dev/null
+++ b/modules/hudozka-api/src/server/lib.ts
@@ -0,0 +1,14 @@
+/**
+ *
+ * {a: {}, b: {}, ...} -> Map (a: Class, b: Class)
+ *
+ * @param Class
+ * @param object
+ */
+export function mapOf(Class, object) {
+    return Object
+        .entries(object)
+        .reduce((map, i) => (
+            map.set(i[0], new Class(i[1]))
+        ), new Map())
+}
diff --git a/modules/hudozka-api/src/server/schedule.ts b/modules/hudozka-api/src/server/schedule.ts
new file mode 100644
index 00000000..f7b07a1b
--- /dev/null
+++ b/modules/hudozka-api/src/server/schedule.ts
@@ -0,0 +1,135 @@
+import { createMap } from '../utils/common'
+import { getCollective } from './collective'
+import {
+    scheduleDate,
+    getPeriod as schedulePeriod,
+    getPeriodString
+} from '../models/schedule'
+import { getCourse } from '../models/course'
+
+// import { last } from 'lodash'
+// const sortBy = require('../lib/sort').sortBy
+
+const SCHEDULES = 'schedules'
+
+export async function findSchedule(collection, period, semester) {
+    const schedule = await collection(SCHEDULES).findOne({
+        $or: [
+            { period: period },
+            { period: schedulePeriod(period) }
+        ],
+        semester: semester
+    })
+
+    return schedule ? migrate(schedule) : null
+}
+
+// async function findAllScheduleParams() {
+//     const schedules = await collection(SCHEDULES)
+//         .find({}, {
+//             period: 1,
+//             semester: 1,
+//             _id: 0,
+//         })
+//         .toArray()
+
+//     return schedules
+//         .map(i => ({
+//             ...i,
+//             period: schedulePeriod(i.period),
+//         }))
+//         .sort(sortBy(
+//             i => scheduleDate(i).getTime(),
+//             true,
+//         ))
+// }
+
+// function text({ semester, period }) {
+//     const word = semester => [['spring', 'Весна'], ['autumn', 'Осень']]
+//         .find(i => i[0] === semester)
+//     [1]
+//     const periodIndex = semester === 'spring' ? 1 : 0
+//     const year = period[periodIndex]
+
+//     return `${word(semester)} ${year} года`
+// }
+
+async function migrate(schedule) {
+    const versions = {
+        '1.0': migrate10to20,
+        '2.0': migrate20to30,
+    }
+
+    const version = schedule.version
+    const update = versions[version]
+    return version in versions ? migrate(update(schedule)) : schedule
+}
+
+function migrate10to20(schedule) {
+    const dayNames = ['mon', 'tue', 'wed', 'thu', 'fri', 'sat', 'sun']
+    const time = time => time
+        .map(i => i.split(' '))
+
+    const week = days => days.reduce((week, lesson, index) => {
+        if (lesson) {
+            const day = dayNames[index]
+            week[day] = [Object.assign(lesson, {
+                time: time(lesson.time)
+            })]
+        }
+
+        return week
+    }, {})
+
+    return Object.assign(schedule, {
+        version: '2.0',
+        period: schedulePeriod(schedule.period),
+        groups: schedule.schedule
+            .map(group => ({
+                name: group.group,
+                time: group.time,
+                week: week(group.week)
+            }))
+    })
+}
+
+async function migrate20to30(schedule) {
+    const days = ['mon', 'tue', 'wed', 'thu', 'fri', 'sat']//, 'sun']
+
+    const persons = await getCollective()
+    const person = createMap(i => i.id, persons)
+
+    const week = week => days
+        .map(day => week[day] || [])
+        .map(lessons => lessons.map(lesson))
+
+    const lesson = i => ({
+        time: i.time,
+        course: getCourse(i.lesson),
+        teacher: person.has(i.teacher) ? teacher(i.teacher) : teacherDummy(i.teacher)
+    })
+
+    const teacher = id => ({
+        id: id,
+        url: `/teacher/${id}`,
+        name: personName(id)
+    })
+
+    const teacherDummy = name => ({
+        id: name,
+        url: null,
+        name: name
+    })
+
+    const personName = id => person.has(id) ? person.get(id).name : null
+
+    return Object.assign(schedule, {
+        version: '3.0',
+        groups: schedule.groups
+            .map(group => ({
+                name: group.name,
+                time: group.time,
+                week: week(group.week)
+            }))
+    })
+}
diff --git a/modules/hudozka-api/src/utils/common.ts b/modules/hudozka-api/src/utils/common.ts
new file mode 100644
index 00000000..a2ec4754
--- /dev/null
+++ b/modules/hudozka-api/src/utils/common.ts
@@ -0,0 +1,106 @@
+/**
+ * Generates list of numbers
+ * @param  {Number} start starting value
+ * @param  {Number} num   amount of numbers in list
+ * @param  {Number} step  difference value
+ * @return {Array}        list of numbers
+ */
+export function range(start, num, step) {
+    var list = [];
+    var val = start;
+    for (var i = 0; i < num; i++) {
+        list.push(val);
+        val += step;
+    }
+    return list;
+}
+
+/**
+ * Return a closure that compares a Number argument with specified Number
+ * @param withNumber Number to compare with
+ * @returns {Function} (i) => {}
+ */
+export function numberEquals(withNumber) {
+    return i => i === withNumber;
+}
+
+/**
+ * Return a closure that compares a second Number argument with specified Number
+ * @param withNumber Number to compare with
+ * @returns {Function} (i) => {}
+ */
+export function indexEquals(withNumber) {
+    return (_, i) => i === withNumber;
+}
+
+/**
+ * Return a reduce function
+ * [['spring', 'Весена'], ['autumn', 'Осень']] -> 'Весна' or 'Осень' depend on byCondition result
+ * @param byCondition
+ * @param map
+ */
+export function select(byCondition, map = i => i) {
+    return (result, item) => byCondition(item) ? map(item) : map(result)
+}
+
+/**
+ * Select an item in Array by specified selector function
+ * @param scope
+ * @param selector
+ * @returns {*}
+ */
+export function choise(scope, selector) {
+    return scope.reduce(selector, null);
+}
+
+export function unique<T, U>(fn: (value: T) => U): (list: T[]) => U[] {
+    return list => Array.from(
+        new Set(list.map(fn))
+    )
+}
+
+export function branch(fn) {
+    let keys = unique(fn);
+
+    return list => keys(list)
+        .reduce((dict: any, key: any) => {
+            dict[key] = list.filter(
+                i => fn(i) === key
+            );
+
+            return dict;
+        }, {})
+
+}
+
+export function assign(dict, key, value) {
+    dict[key] = value;
+    return dict;
+}
+
+export function map(v, fn) {
+    return value => fn(value) ? v : value;
+}
+
+/**
+ *
+ * f(g, [x, y, z, ...]) => map of {g(x): x, g(y): y, g(z): z}
+ *
+ * @param list
+ * @param selector
+ * @returns {*}
+ */
+export function createMap(selector, list) {
+    return list.reduce((map, i) => map.set(selector(i), i), new Map());
+}
+
+/**
+ *
+ * f(g) => x ? g(x) : null
+ *
+ * @param {function} fn
+ * @returns {function(*=): null}
+ */
+export function nullSafe(fn) {
+    return i => i ? fn(i) : null;
+}
diff --git a/modules/hudozka-api/src/utils/date.js b/modules/hudozka-api/src/utils/date.js
new file mode 100644
index 00000000..9bdac8af
--- /dev/null
+++ b/modules/hudozka-api/src/utils/date.js
@@ -0,0 +1,21 @@
+import {range} from './common';
+
+/**
+ *
+ * @param start
+ * @returns {*}
+ */
+export function getDates(start) {
+    const oneDay = (1000 * 60 * 60 * 24);
+    const startTime = start.getTime();
+    const startDay = start.getDay();
+
+    return range(0, 6, 1)
+        .reduce((dates, weekDay) => {
+            let delta = 1 + weekDay - startDay;
+            let time = startTime + (oneDay * delta);
+
+            return dates.concat([new Date(time)]);
+        }, [])
+        .map(i => i.getDate());
+}
\ No newline at end of file
diff --git a/modules/hudozka-api/src/utils/fn.js b/modules/hudozka-api/src/utils/fn.js
new file mode 100644
index 00000000..caaf894a
--- /dev/null
+++ b/modules/hudozka-api/src/utils/fn.js
@@ -0,0 +1,13 @@
+/**
+ *
+ * f([x, y, z, ...]) -> f(v) -> {v.x, v.y, v.z}
+ *
+ * @param fields
+ * @returns {function(*): *}
+ */
+export function select(fields=[]){
+    return i => fields.reduce((out, key) => {
+        out[key] = i[key];
+        return out;
+    }, {});
+}
diff --git a/modules/hudozka-api/src/utils/net.js b/modules/hudozka-api/src/utils/net.js
new file mode 100644
index 00000000..623cab68
--- /dev/null
+++ b/modules/hudozka-api/src/utils/net.js
@@ -0,0 +1,8 @@
+export function query(list) {
+    return list
+        .reduce(
+            (query, param) => query.concat([`${param[0]}=${param[1]}`]),
+            []
+        )
+        .join('&');
+}
diff --git a/modules/hudozka-api/src/utils/populate.js b/modules/hudozka-api/src/utils/populate.js
new file mode 100644
index 00000000..d5a50261
--- /dev/null
+++ b/modules/hudozka-api/src/utils/populate.js
@@ -0,0 +1,35 @@
+export function pop(data){
+	var Populator = function(data){
+		this.target = data;
+	}
+	
+	Populator.prototype = {
+		populate: function(p){
+			var self = this;
+			if(typeof p == "function"){
+				self.target = p(self.target);
+			}else if(p instanceof Array){
+				p.forEach(function(i){
+					self.target = self.populate(i).result();
+				});
+				
+			}
+			return self;
+		},
+		result: function(){
+			return this.target;
+		}
+	};
+
+	var fun = new Populator(data);
+	return fun;
+}
+
+export function populate(fn, key){
+	return (dict) => {
+		let id = dict[key];
+		let value = fn(id);
+		dict[key] = value ? value : id;
+		return dict;
+	}
+}
\ No newline at end of file
diff --git a/modules/hudozka-api/src/utils/sort.js b/modules/hudozka-api/src/utils/sort.js
new file mode 100644
index 00000000..774b1adf
--- /dev/null
+++ b/modules/hudozka-api/src/utils/sort.js
@@ -0,0 +1,26 @@
+export function sortByPattern(list, pattern, map) {
+	let weight = i => {
+		const index = pattern.indexOf(map(i))
+		return index > -1 ? pattern.length - index : 0
+	}
+
+	return sortByWeight(list, weight)
+}
+
+export function sortByWeight(list, fn) {
+	return list
+		.map(i => [fn(i), i])
+		.sort((a, b) => b[0] - a[0])
+		.map(i => i[1])
+}
+
+export function sortBy(fn) {
+	return (i1, i2) => {
+		let t1 = fn(i1)
+		let t2 = fn(i2)
+
+		if (t1 < t2) return 1
+		if (t1 > t2) return -1
+		return 0
+	}
+}
diff --git a/modules/hudozka-api/src/utils/string.js b/modules/hudozka-api/src/utils/string.js
new file mode 100644
index 00000000..a5e7dace
--- /dev/null
+++ b/modules/hudozka-api/src/utils/string.js
@@ -0,0 +1,22 @@
+import {map} from './common';
+
+/**
+ * Return a function that accept one String parameter and returns result of replacing.
+ *
+ * @param searchValue
+ * @param replaceValue
+ */
+export const stringReplace = (searchValue, replaceValue) =>
+    str => str.replace(searchValue, replaceValue);
+
+let toTrue = map(true, i => i === 'true');
+let toFalse = map(false, i => i === 'false');
+const boolProcessors = [toTrue, toFalse];
+
+export function stringToBoolean(string){
+    return boolProcessors
+        .reduce(
+            (value, fn) => fn(value),
+            string
+        );
+}
\ No newline at end of file