diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..bee8a64
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1 @@
+__pycache__
diff --git a/Dockerfile b/Dockerfile
index f20ae2b..9094977 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,13 +1,29 @@
-FROM python:3.8-alpine
+FROM python:3.8-alpine AS builder
 
 WORKDIR /app
+ENV PATH="/root/.poetry/bin:$PATH"
+
+RUN apk add --no-cache build-base libffi-dev curl \
+	&& curl -sSL https://raw.githubusercontent.com/sdispater/poetry/master/get-poetry.py | python \
+	&& python -m venv .venv \
+	&& poetry config virtualenvs.in-project true \
+	&& .venv/bin/pip install --no-cache-dir -U pip setuptools
+
+COPY pyproject.toml poetry.lock ./
+RUN poetry install --no-dev --no-root --no-interaction
+
+COPY blockchain/ ./blockchain/
+
+
+FROM python:3.8-alpine
+
 EXPOSE 80
-ENV FLASK_APP=run:app \
-	FLASK_ENV=production \
+WORKDIR /app
+CMD ["uvicorn", "run:app", "--host", "0.0.0.0", "--port", "80"]
+ENV PATH="/app/.venv/bin:$PATH" \
 	PYTHONUNBUFFERED=1
-CMD ["flask", "run", "-p", "80", "-h", "0.0.0.0"]
 
-ADD requirements.txt run.py ./
-RUN pip install -r requirements.txt
+RUN apk add --no-cache libc-dev binutils
 
-ADD blockchain/ ./blockchain/
+COPY run.py ./
+COPY --from=builder /app/ ./
diff --git a/blockchain/__init__.py b/blockchain/__init__.py
index 5271cdc..21aa392 100644
--- a/blockchain/__init__.py
+++ b/blockchain/__init__.py
@@ -2,17 +2,34 @@
 # -*- coding: utf-8 -*-
 # vim:fenc=utf-8
 
-from flask import Flask
+from uuid import uuid4
+
+from fastapi import FastAPI
+
+from .blockchain import Blockchain
+
+blockchain = Blockchain()
+identifier = str(uuid4()).replace('-', '')
 
 
-def init_blueprints(app):
-	from .app import app as app_bp
-	app.register_blueprint(app_bp, url_prefix='/')
+def init_routers(app):
+	from .routers import misc
+	app.include_router(
+		misc.router,
+		prefix='',
+		tags=['misc'],
+	)
+
+	from .routers import nodes
+	app.include_router(
+		nodes.router,
+		prefix='/nodes',
+		tags=['nodes'],
+	)
 
 
-def create_app(package_name=__name__):
-	app = Flask(package_name)
-
-	init_blueprints(app)
+def create_app():
+	app = FastAPI()
+	init_routers(app)
 
 	return app
diff --git a/blockchain/app.py b/blockchain/app.py
deleted file mode 100644
index 7cc26d9..0000000
--- a/blockchain/app.py
+++ /dev/null
@@ -1,127 +0,0 @@
-#! /usr/bin/env python
-# -*- coding: utf-8 -*-
-# vim:fenc=utf-8
-
-from decimal import Decimal
-from uuid import uuid4
-
-from flask import Blueprint, request
-
-from .blockchain import Blockchain
-from .utils import jsonify
-
-
-app = Blueprint('app', __name__)
-identifier = str(uuid4()).replace('-', '')
-blockchain = Blockchain()
-
-
-@app.route('/mine', methods=['POST'])
-def mine():
-	# We run the proof of work algorithm to get the next proof...
-	last_block = blockchain.last_block
-	proof = blockchain.proof_of_work(last_block)
-
-	# We must receive a reward for finding the proof.
-	# The sender is '0' to signify that this node has mined a new coin.
-	blockchain.new_transaction(
-		sender='0',
-		recipient=identifier,
-		amount=Decimal(1),
-	)
-
-	previous_hash = blockchain.hash(last_block)
-	block = blockchain.new_block(proof, previous_hash)
-
-	return jsonify({
-		'msg': 'New Block Forged',
-		'index': block['index'],
-		'transactions': block['transactions'],
-		'proof': block['proof'],
-		'previous_hash': block['previous_hash'],
-	}), 200
-
-
-@app.route('/transactions', methods=['POST'])
-def create_transaction():
-	sender = request.json.get('sender')
-	recipient = request.json.get('recipient')
-	amount = request.json.get('amount')
-	if None in (sender, recipient, amount):
-		return {'msg': 'Missing parameter'}, 400
-
-	index = blockchain.new_transaction(
-		sender,
-		recipient,
-		Decimal(amount),
-	)
-
-	return jsonify({
-		'msg': f'Transaction will be added to Block {index}'
-	}), 201
-
-
-@app.route('/chain', methods=['GET'])
-def full_chain():
-	return jsonify({
-		'chain': blockchain.chain,
-		'length': len(blockchain.chain),
-	}), 200
-
-
-@app.route('/identifier', methods=['GET'])
-def get_identifier():
-	return jsonify({
-		'identifier': identifier
-	})
-
-
-@app.route('/nodes', methods=['GET'])
-def get_nodes():
-	return jsonify({
-		'nodes': list(blockchain.nodes),
-	}), 200
-
-
-@app.route('/nodes/<identifier>/balance', methods=['GET'])
-def get_balance(identifier):
-	balance = blockchain.get_balance(identifier)
-	if balance is None:
-		return jsonify({
-			'msg': 'Chain is not valid',
-		}), 500
-
-	return jsonify({
-		'identifier': identifier,
-		'balance': balance,
-	}), 200
-
-
-@app.route('/nodes/register', methods=['POST'])
-def register_nodes():
-	nodes = request.json.get('nodes')
-	if None in (nodes,):
-		return {'msg': 'No valid list of nodes'}, 400
-
-	for node in nodes:
-		blockchain.register_node(node)
-
-	return jsonify({
-		'msg': 'New nodes have been added',
-		'total_nodes': list(blockchain.nodes),
-	}), 201
-
-
-@app.route('/nodes/resolve', methods=['POST'])
-def consensus():
-	replaced = blockchain.resolve_conflicts()
-
-	if replaced:
-		message = 'Our chain was replaced'
-	else:
-		message = 'Our chain is authoritative'
-
-	return jsonify({
-		'msg': message,
-		'chain': blockchain.chain,
-	}), 200
diff --git a/blockchain/blockchain.py b/blockchain/blockchain.py
index 240dfd4..7f56f79 100644
--- a/blockchain/blockchain.py
+++ b/blockchain/blockchain.py
@@ -7,14 +7,14 @@ import requests
 
 from .utils import dumps, do_process_pow, valid_proof
 
-DIFFICULTY = 24
+DIFFICULTY = 8
 
 
 class Blockchain:
 	def __init__(self):
 		self.current_transactions = []
 		self.chain = []
-		self.nodes = set()
+		self.peers = set()
 
 		# Create the genesis block
 		self.new_block(previous_hash='1', proof=100)
@@ -28,10 +28,10 @@ class Blockchain:
 
 		parsed_url = urlparse(address)
 		if parsed_url.netloc:
-			self.nodes.add(parsed_url.netloc)
+			self.peers.add(parsed_url.netloc)
 		elif parsed_url.path:
 			# Accepts an URL without scheme like '192.168.0.5:5000'.
-			self.nodes.add(parsed_url.path)
+			self.peers.add(parsed_url.path)
 		else:
 			raise ValueError('Invalid URL')
 
@@ -57,7 +57,7 @@ class Blockchain:
 				return False
 
 			# Check that the Proof of Work is correct
-			if not valid_proof(last_block['proof'], block['proof'], last_block_hash):
+			if not valid_proof(last_block['proof'], block['proof'], last_block_hash, DIFFICULTY):
 				return False
 
 			last_block = block
@@ -73,14 +73,13 @@ class Blockchain:
 		:return: True if our chain was replaced, False if not
 		"""
 
-		neighbours = self.nodes
 		new_chain = None
 
 		# We're only looking for chains longer than ours
 		max_length = len(self.chain)
 
-		# Grab and verify the chains from all the nodes in our network
-		for node in neighbours:
+		# Grab and verify the chains from all the peers in our network
+		for node in self.peers:
 			response = requests.get(f'http://{node}/chain')
 
 			if response.status_code == 200:
@@ -121,7 +120,18 @@ class Blockchain:
 
 		return block
 
-	def new_transaction(self, sender, recipient, amount):
+	def broadcast_transaction(self, transaction):
+		for node in self.peers:
+			response = requests.post(
+				f'http://{node}/transactions',
+				data=dumps(transaction, separators=(",", ":")),
+				headers={'content-type': 'application/json'},
+			)
+
+			if response.status_code != 202:
+				print(f'Failed to send transaction to node {node}', response)
+
+	def new_transaction(self, sender, recipient, amount, timestamp=None, mine=False):
 		"""
 		Creates a new transaction to go into the next mined Block
 
@@ -130,13 +140,17 @@ class Blockchain:
 		:param amount: Amount
 		:return: The index of the Block that will hold this transaction
 		"""
-		self.current_transactions.append({
+		transaction = {
 			'sender': sender,
 			'recipient': recipient,
 			'amount': amount,
-		})
-
-		return self.last_block['index'] + 1
+			'timestamp': timestamp or time(),
+		}
+		if transaction not in self.current_transactions:
+			self.current_transactions.append(transaction)
+			print(f'added transaction to list {mine}')
+			if not mine:
+				self.broadcast_transaction(transaction)
 
 	@property
 	def last_block(self):
diff --git a/blockchain/routers/__init__.py b/blockchain/routers/__init__.py
new file mode 100644
index 0000000..9a1de41
--- /dev/null
+++ b/blockchain/routers/__init__.py
@@ -0,0 +1,7 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+# vim:fenc=utf-8
+#
+# Copyright © 2020 <pavle.portic@tilda.center>
+#
+# Distributed under terms of the BSD 3-Clause license.
diff --git a/blockchain/routers/misc.py b/blockchain/routers/misc.py
new file mode 100644
index 0000000..b57efa8
--- /dev/null
+++ b/blockchain/routers/misc.py
@@ -0,0 +1,69 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+# vim:fenc=utf-8
+#
+# Copyright © 2020 <pavle.portic@tilda.center>
+#
+# Distributed under terms of the BSD 3-Clause license.
+
+from decimal import Decimal
+
+from fastapi import APIRouter
+
+from .. import blockchain, identifier
+from ..schemas import Transaction
+
+router = APIRouter()
+
+
+@router.post('/mine', status_code=200)
+async def mine():
+	last_block = blockchain.last_block
+	proof = blockchain.proof_of_work(last_block)
+	blockchain.new_transaction(
+		sender='0',
+		recipient=identifier,
+		amount=Decimal(1),
+		timestamp=None,
+		mine=True,
+	)
+
+	previous_hash = blockchain.hash(last_block)
+	block = blockchain.new_block(proof, previous_hash)
+
+	return {
+		'msg': 'New Block Forged',
+		'index': block['index'],
+		'transactions': block['transactions'],
+		'proof': block['proof'],
+		'previous_hash': block['previous_hash'],
+	}
+
+
+@router.post('/transactions', status_code=202)
+async def create_transaction(request: Transaction):
+	blockchain.new_transaction(
+		request.sender,
+		request.recipient,
+		request.amount,
+		request.timestamp,
+	)
+
+	return {
+		'msg': f'Transaction sent'
+	}
+
+
+@router.get('/chain', status_code=200)
+async def full_chain():
+	return {
+		'chain': blockchain.chain,
+		'length': len(blockchain.chain),
+	}
+
+
+@router.get('/identifier', status_code=200)
+async def get_identifier():
+	return {
+		'identifier': identifier
+	}
diff --git a/blockchain/routers/nodes.py b/blockchain/routers/nodes.py
new file mode 100644
index 0000000..95c3e6b
--- /dev/null
+++ b/blockchain/routers/nodes.py
@@ -0,0 +1,64 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+# vim:fenc=utf-8
+#
+# Copyright © 2020 <pavle.portic@tilda.center>
+#
+# Distributed under terms of the BSD 3-Clause license.
+
+from fastapi import APIRouter
+
+from .. import blockchain
+from ..schemas import NodeList
+
+router = APIRouter()
+
+
+@router.get('/', status_code=200)
+async def get_nodes():
+	return {
+		'nodes': list(blockchain.peers),
+	}
+
+
+@router.get('/{identifier}/balance', status_code=200)
+async def get_balance(identifier: str):
+	balance = blockchain.get_balance(identifier)
+	if balance is None:
+		return {
+			'msg': 'Chain is not valid',
+		}, 500
+
+	return {
+		'identifier': identifier,
+		'balance': balance,
+	}
+
+
+@router.post('/register', status_code=201)
+async def register_nodes(request: NodeList):
+	if None in (request.nodes,):
+		return {'msg': 'No valid list of nodes'}, 400
+
+	for node in request.nodes:
+		blockchain.register_node(node)
+
+	return {
+		'msg': 'New peers have been added',
+		'peers': list(blockchain.peers),
+	}
+
+
+@router.post('/resolve', status_code=200)
+async def consensus():
+	replaced = blockchain.resolve_conflicts()
+
+	if replaced:
+		message = 'Our chain was replaced'
+	else:
+		message = 'Our chain is authoritative'
+
+	return {
+		'msg': message,
+		'chain': blockchain.chain,
+	}
diff --git a/blockchain/schemas.py b/blockchain/schemas.py
new file mode 100644
index 0000000..59a8414
--- /dev/null
+++ b/blockchain/schemas.py
@@ -0,0 +1,23 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+# vim:fenc=utf-8
+#
+# Copyright © 2020 <pavle.portic@tilda.center>
+#
+# Distributed under terms of the BSD 3-Clause license.
+
+from decimal import Decimal
+from typing import List
+
+from pydantic import BaseModel
+
+
+class NodeList(BaseModel):
+	nodes: List[str]
+
+
+class Transaction(BaseModel):
+	sender: str
+	recipient: str
+	amount: Decimal
+	timestamp: float = None
diff --git a/blockchain/utils.py b/blockchain/utils.py
index 1e3857e..9aeae4d 100644
--- a/blockchain/utils.py
+++ b/blockchain/utils.py
@@ -8,6 +8,8 @@
 
 import hashlib
 import itertools
+import json
+from decimal import Decimal
 from multiprocessing import (
 	cpu_count,
 	Pool,
@@ -15,43 +17,25 @@ from multiprocessing import (
 	Queue
 )
 
-from flask import current_app, json
+
+class DecimalJsonEncoder(json.JSONEncoder):
+	def default(self, obj):
+		if isinstance(obj, Decimal):
+			return float(obj)
+		return super(DecimalJsonEncoder, self).default(obj)
 
 
-def dumps(*args, **kwargs):
-	if len(args) == 1:
-		data = args[0]
-	else:
-		data = args
-
+def dumps(*data, **kwargs):
 	return json.dumps(
 		data,
-		use_decimal=True,
+		cls=DecimalJsonEncoder,
 		**kwargs,
 	)
 
 
-def jsonify(*args, **kwargs):
-	indent = None
-	separators = (",", ":")
-
-	if current_app.config["JSONIFY_PRETTYPRINT_REGULAR"] or current_app.debug:
-		indent = 2
-		separators = (", ", ": ")
-
-	return current_app.response_class(
-		dumps(
-			*args,
-			indent=indent,
-			separators=separators,
-		) + "\n",
-		mimetype=current_app.config["JSONIFY_MIMETYPE"],
-	)
-
-
 def do_pooled_pow(last_proof, last_hash, difficulty):
 	queue = Queue()
-	with Pool() as p:
+	with Pool(1) as p:
 		result = p.starmap_async(pool_worker, ((
 			queue,
 			i,
diff --git a/docker-compose.yml b/docker-compose.yml
index 448fd87..ec831ef 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,10 +2,51 @@ version: '3'
 services:
   node0:
     build: .
+    image: blockchain
     ports:
       - 5000:80
 
   node1:
-    build: .
+    image: blockchain
     ports:
       - 5001:80
+
+  node2:
+    image: blockchain
+    ports:
+      - 5002:80
+
+  node3:
+    image: blockchain
+    ports:
+      - 5003:80
+
+  node4:
+    image: blockchain
+    ports:
+      - 5004:80
+
+  node5:
+    image: blockchain
+    ports:
+      - 5005:80
+
+  # node6:
+    # image: blockchain
+    # ports:
+      # - 5006:80
+
+  # node7:
+    # image: blockchain
+    # ports:
+      # - 5007:80
+
+  # node8:
+    # image: blockchain
+    # ports:
+      # - 5008:80
+
+  # node9:
+    # image: blockchain
+    # ports:
+      # - 5009:80
diff --git a/init b/init
index eb3918e..648e85f 100755
--- a/init
+++ b/init
@@ -1,34 +1,46 @@
 #!/bin/bash
 
-function register_nodes() {
-	http POST localhost:5001/nodes/register \
-		nodes:='["http://localhost:5002"]'
+set -e
 
-	http POST localhost:5002/nodes/register \
-		nodes:='["http://localhost:5001"]'
+function register_nodes() {
+	from=$1
+	to_list=$2
+	for to in $to_list; do
+		http POST localhost:500$from/nodes/register \
+			nodes:="[\"http://node$to\"]"
+	done
 }
 
 function synchronise_nodes() {
+	http POST localhost:5000/nodes/resolve
 	http POST localhost:5001/nodes/resolve
-	http POST localhost:5002/nodes/resolve
 }
 
+NODE0_ID=$(http localhost:5000/identifier | jq -r ".identifier")
 NODE1_ID=$(http localhost:5001/identifier | jq -r ".identifier")
-NODE2_ID=$(http localhost:5002/identifier | jq -r ".identifier")
 
-register_nodes >/dev/null
+register_nodes "0" "1 3 4"
+register_nodes "1" "0 5"
+register_nodes "2" "5"
+register_nodes "3" "0 4"
+register_nodes "4" "0 3 5"
+register_nodes "5" "1 2 4"
 
-# Mine a few initial blocks
-http POST localhost:5001/mine
-http POST localhost:5001/mine
-synchronise_nodes >/dev/null
+# # Mine a few initial blocks
+http POST localhost:5000/mine
+http POST localhost:5000/mine
+http POST localhost:5001/nodes/resolve
+http POST localhost:5003/nodes/resolve
+http POST localhost:5005/nodes/resolve
+http POST localhost:5002/nodes/resolve
+# synchronise_nodes >/dev/null
 
-http POST localhost:5001/transactions sender=$NODE1_ID recipient=$NODE2_ID amount=1.3
-http POST localhost:5001/mine
-synchronise_nodes >/dev/null
+# http POST localhost:5000/transactions sender=$NODE0_ID recipient=$NODE1_ID amount=1.3
+# http POST localhost:5000/mine
+# synchronise_nodes >/dev/null
 
-http localhost:5001/nodes/$NODE1_ID/balance
-http localhost:5001/nodes/$NODE2_ID/balance
+# http localhost:5000/nodes/$NODE0_ID/balance
+# http localhost:5000/nodes/$NODE1_ID/balance
 
-echo node1: $NODE1_ID
-echo node2: $NODE2_ID
+# echo node0: $NODE0_ID
+# echo node1: $NODE1_ID
diff --git a/poetry.lock b/poetry.lock
index e97a1b4..9233d2f 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -24,22 +24,38 @@ version = "7.0"
 
 [[package]]
 category = "main"
-description = "A simple framework for building complex web applications."
-name = "flask"
+description = "FastAPI framework, high performance, easy to learn, fast to code, ready for production"
+name = "fastapi"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.1.1"
+python-versions = ">=3.6"
+version = "0.48.0"
 
 [package.dependencies]
-Jinja2 = ">=2.10.1"
-Werkzeug = ">=0.15"
-click = ">=5.1"
-itsdangerous = ">=0.24"
+pydantic = ">=0.32.2,<2.0.0"
+starlette = "0.12.9"
 
 [package.extras]
-dev = ["pytest", "coverage", "tox", "sphinx", "pallets-sphinx-themes", "sphinxcontrib-log-cabinet", "sphinx-issues"]
-docs = ["sphinx", "pallets-sphinx-themes", "sphinxcontrib-log-cabinet", "sphinx-issues"]
-dotenv = ["python-dotenv"]
+all = ["requests", "aiofiles", "jinja2", "python-multipart", "itsdangerous", "pyyaml", "graphene", "ujson", "email-validator", "uvicorn", "async-exit-stack", "async-generator"]
+dev = ["pyjwt", "passlib", "autoflake", "flake8", "uvicorn", "graphene"]
+doc = ["mkdocs", "mkdocs-material", "markdown-include"]
+test = ["pytest (>=4.0.0)", "pytest-cov", "mypy", "black", "isort", "requests", "email-validator", "sqlalchemy", "peewee", "databases", "orjson", "async-exit-stack", "async-generator"]
+
+[[package]]
+category = "main"
+description = "A pure-Python, bring-your-own-I/O implementation of HTTP/1.1"
+name = "h11"
+optional = false
+python-versions = "*"
+version = "0.9.0"
+
+[[package]]
+category = "main"
+description = "A collection of framework independent HTTP protocol utils."
+marker = "sys_platform != \"win32\" and sys_platform != \"cygwin\" and platform_python_implementation != \"pypy\""
+name = "httptools"
+optional = false
+python-versions = "*"
+version = "0.0.13"
 
 [[package]]
 category = "main"
@@ -51,33 +67,16 @@ version = "2.8"
 
 [[package]]
 category = "main"
-description = "Various helpers to pass data to untrusted environments and back."
-name = "itsdangerous"
+description = "Data validation and settings management using python 3.6 type hinting"
+name = "pydantic"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.1.0"
-
-[[package]]
-category = "main"
-description = "A very fast and expressive template engine."
-name = "jinja2"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.11.1"
-
-[package.dependencies]
-MarkupSafe = ">=0.23"
+python-versions = ">=3.6"
+version = "1.4"
 
 [package.extras]
-i18n = ["Babel (>=0.8)"]
-
-[[package]]
-category = "main"
-description = "Safely add untrusted strings to HTML/XML markup."
-name = "markupsafe"
-optional = false
-python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
-version = "1.1.1"
+dotenv = ["python-dotenv (>=0.10.4)"]
+email = ["email-validator (>=1.0.3)"]
+typing_extensions = ["typing-extensions (>=3.7.2)"]
 
 [[package]]
 category = "dev"
@@ -110,11 +109,14 @@ socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7)", "win-inet-pton"]
 
 [[package]]
 category = "main"
-description = "Simple, fast, extensible JSON encoder/decoder for Python"
-name = "simplejson"
+description = "The little ASGI library that shines."
+name = "starlette"
 optional = false
-python-versions = ">=2.5, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "3.17.0"
+python-versions = ">=3.6"
+version = "0.12.9"
+
+[package.extras]
+full = ["aiofiles", "graphene", "itsdangerous", "jinja2", "python-multipart", "pyyaml", "requests", "ujson"]
 
 [[package]]
 category = "main"
@@ -131,19 +133,38 @@ socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7,<2.0)"]
 
 [[package]]
 category = "main"
-description = "The comprehensive WSGI web application library."
-name = "werkzeug"
+description = "The lightning-fast ASGI server."
+name = "uvicorn"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.16.1"
+python-versions = "*"
+version = "0.11.2"
 
-[package.extras]
-dev = ["pytest", "coverage", "tox", "sphinx", "pallets-sphinx-themes", "sphinx-issues"]
-termcolor = ["termcolor"]
-watchdog = ["watchdog"]
+[package.dependencies]
+click = ">=7.0.0,<8.0.0"
+h11 = ">=0.8,<0.10"
+httptools = "0.0.13"
+uvloop = ">=0.14.0"
+websockets = ">=8.0.0,<9.0.0"
+
+[[package]]
+category = "main"
+description = "Fast implementation of asyncio event loop on top of libuv"
+marker = "sys_platform != \"win32\" and sys_platform != \"cygwin\" and platform_python_implementation != \"pypy\""
+name = "uvloop"
+optional = false
+python-versions = "*"
+version = "0.14.0"
+
+[[package]]
+category = "main"
+description = "An implementation of the WebSocket Protocol (RFC 6455 & 7692)"
+name = "websockets"
+optional = false
+python-versions = ">=3.6.1"
+version = "8.1"
 
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+content-hash = "bd7659287574f6e4041d1f1a687f7ed818fdebcb9ea3ddd9fdf16ede2279db6f"
 python-versions = "^3.8"
 
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+    {file = "uvicorn-0.11.2-py3-none-any.whl", hash = "sha256:4a35496af38e4deeec911f4af99b0bace19669c986210b0a950ad2b7bfd5737a"},
+    {file = "uvicorn-0.11.2.tar.gz", hash = "sha256:11f397855c7f35dc034a3d288883382a4c16afdfe6675b70896f55bd6051da64"},
+]
+uvloop = [
+    {file = "uvloop-0.14.0-cp35-cp35m-macosx_10_11_x86_64.whl", hash = "sha256:08b109f0213af392150e2fe6f81d33261bb5ce968a288eb698aad4f46eb711bd"},
+    {file = "uvloop-0.14.0-cp35-cp35m-manylinux2010_x86_64.whl", hash = "sha256:4544dcf77d74f3a84f03dd6278174575c44c67d7165d4c42c71db3fdc3860726"},
+    {file = "uvloop-0.14.0-cp36-cp36m-macosx_10_11_x86_64.whl", hash = "sha256:b4f591aa4b3fa7f32fb51e2ee9fea1b495eb75b0b3c8d0ca52514ad675ae63f7"},
+    {file = "uvloop-0.14.0-cp36-cp36m-manylinux2010_x86_64.whl", hash = "sha256:f07909cd9fc08c52d294b1570bba92186181ca01fe3dc9ffba68955273dd7362"},
+    {file = "uvloop-0.14.0-cp37-cp37m-macosx_10_11_x86_64.whl", hash = "sha256:afd5513c0ae414ec71d24f6f123614a80f3d27ca655a4fcf6cabe50994cc1891"},
+    {file = "uvloop-0.14.0-cp37-cp37m-manylinux2010_x86_64.whl", hash = "sha256:e7514d7a48c063226b7d06617cbb12a14278d4323a065a8d46a7962686ce2e95"},
+    {file = "uvloop-0.14.0-cp38-cp38-macosx_10_11_x86_64.whl", hash = "sha256:bcac356d62edd330080aed082e78d4b580ff260a677508718f88016333e2c9c5"},
+    {file = "uvloop-0.14.0-cp38-cp38-manylinux2010_x86_64.whl", hash = "sha256:4315d2ec3ca393dd5bc0b0089d23101276778c304d42faff5dc4579cb6caef09"},
+    {file = "uvloop-0.14.0.tar.gz", hash = "sha256:123ac9c0c7dd71464f58f1b4ee0bbd81285d96cdda8bc3519281b8973e3a461e"},
+]
+websockets = [
+    {file = "websockets-8.1-cp36-cp36m-macosx_10_6_intel.whl", hash = "sha256:3762791ab8b38948f0c4d281c8b2ddfa99b7e510e46bd8dfa942a5fff621068c"},
+    {file = "websockets-8.1-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:3db87421956f1b0779a7564915875ba774295cc86e81bc671631379371af1170"},
+    {file = "websockets-8.1-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:4f9f7d28ce1d8f1295717c2c25b732c2bc0645db3215cf757551c392177d7cb8"},
+    {file = "websockets-8.1-cp36-cp36m-manylinux2010_i686.whl", hash = "sha256:295359a2cc78736737dd88c343cd0747546b2174b5e1adc223824bcaf3e164cb"},
+    {file = "websockets-8.1-cp36-cp36m-manylinux2010_x86_64.whl", hash = "sha256:1d3f1bf059d04a4e0eb4985a887d49195e15ebabc42364f4eb564b1d065793f5"},
+    {file = "websockets-8.1-cp36-cp36m-win32.whl", hash = "sha256:2db62a9142e88535038a6bcfea70ef9447696ea77891aebb730a333a51ed559a"},
+    {file = "websockets-8.1-cp36-cp36m-win_amd64.whl", hash = "sha256:0e4fb4de42701340bd2353bb2eee45314651caa6ccee80dbd5f5d5978888fed5"},
+    {file = "websockets-8.1-cp37-cp37m-macosx_10_6_intel.whl", hash = "sha256:9b248ba3dd8a03b1a10b19efe7d4f7fa41d158fdaa95e2cf65af5a7b95a4f989"},
+    {file = "websockets-8.1-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:ce85b06a10fc65e6143518b96d3dca27b081a740bae261c2fb20375801a9d56d"},
+    {file = "websockets-8.1-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:965889d9f0e2a75edd81a07592d0ced54daa5b0785f57dc429c378edbcffe779"},
+    {file = "websockets-8.1-cp37-cp37m-manylinux2010_i686.whl", hash = "sha256:751a556205d8245ff94aeef23546a1113b1dd4f6e4d102ded66c39b99c2ce6c8"},
+    {file = "websockets-8.1-cp37-cp37m-manylinux2010_x86_64.whl", hash = "sha256:3ef56fcc7b1ff90de46ccd5a687bbd13a3180132268c4254fc0fa44ecf4fc422"},
+    {file = "websockets-8.1-cp37-cp37m-win32.whl", hash = "sha256:7ff46d441db78241f4c6c27b3868c9ae71473fe03341340d2dfdbe8d79310acc"},
+    {file = "websockets-8.1-cp37-cp37m-win_amd64.whl", hash = "sha256:20891f0dddade307ffddf593c733a3fdb6b83e6f9eef85908113e628fa5a8308"},
+    {file = "websockets-8.1-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:c1ec8db4fac31850286b7cd3b9c0e1b944204668b8eb721674916d4e28744092"},
+    {file = "websockets-8.1-cp38-cp38-manylinux1_i686.whl", hash = "sha256:5c01fd846263a75bc8a2b9542606927cfad57e7282965d96b93c387622487485"},
+    {file = "websockets-8.1-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:9bef37ee224e104a413f0780e29adb3e514a5b698aabe0d969a6ba426b8435d1"},
+    {file = "websockets-8.1-cp38-cp38-manylinux2010_i686.whl", hash = "sha256:d705f8aeecdf3262379644e4b55107a3b55860eb812b673b28d0fbc347a60c55"},
+    {file = "websockets-8.1-cp38-cp38-manylinux2010_x86_64.whl", hash = "sha256:c8a116feafdb1f84607cb3b14aa1418424ae71fee131642fc568d21423b51824"},
+    {file = "websockets-8.1-cp38-cp38-win32.whl", hash = "sha256:e898a0863421650f0bebac8ba40840fc02258ef4714cb7e1fd76b6a6354bda36"},
+    {file = "websockets-8.1-cp38-cp38-win_amd64.whl", hash = "sha256:f8a7bff6e8664afc4e6c28b983845c5bc14965030e3fb98789734d416af77c4b"},
+    {file = "websockets-8.1.tar.gz", hash = "sha256:5c65d2da8c6bce0fca2528f69f44b2f977e06954c8512a952222cea50dad430f"},
 ]
diff --git a/pyproject.toml b/pyproject.toml
index 939c8b0..2f81637 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,9 +6,9 @@ authors = ["Pavle Portic <pavle.portic@tilda.center>"]
 
 [tool.poetry.dependencies]
 python = "^3.8"
-flask = "^1.1.1"
 requests = "^2.22.0"
-simplejson = "^3.17.0"
+fastapi = {extras = ["uvicorn"], version = "^0.48.0"}
+uvicorn = "^0.11.2"
 
 [tool.poetry.dev-dependencies]
 python-dotenv = "^0.10.5"
diff --git a/requirements.txt b/requirements.txt
index 571c0a1..8db13fe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,53 +7,73 @@ chardet==3.0.4 \
 click==7.0 \
     --hash=sha256:2335065e6395b9e67ca716de5f7526736bfa6ceead690adf616d925bdc622b13 \
     --hash=sha256:5b94b49521f6456670fdb30cd82a4eca9412788a93fa6dd6df72c94d5a8ff2d7
-flask==1.1.1 \
-    --hash=sha256:45eb5a6fd193d6cf7e0cf5d8a5b31f83d5faae0293695626f539a823e93b13f6 \
-    --hash=sha256:13f9f196f330c7c2c5d7a5cf91af894110ca0215ac051b5844701f2bfd934d52
+fastapi==0.48.0 \
+    --hash=sha256:87d409d3ac3957713c016ba3b28fa5214e0903d4351cc3fe486b170d29e8aacd \
+    --hash=sha256:2e00347f6a84291a5f04302733fbcf7c2ad9c674c0d0448cbee661db0e01ca16
+h11==0.9.0 \
+    --hash=sha256:4bc6d6a1238b7615b266ada57e0618568066f57dd6fa967d1290ec9309b2f2f1 \
+    --hash=sha256:33d4bca7be0fa039f4e84d50ab00531047e53d6ee8ffbc83501ea602c169cae1
+httptools==0.0.13; sys_platform != "win32" and sys_platform != "cygwin" and platform_python_implementation != "pypy" \
+    --hash=sha256:e00cbd7ba01ff748e494248183abc6e153f49181169d8a3d41bb49132ca01dfc
 idna==2.8 \
     --hash=sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c \
     --hash=sha256:c357b3f628cf53ae2c4c05627ecc484553142ca23264e593d327bcde5e9c3407
-itsdangerous==1.1.0 \
-    --hash=sha256:b12271b2047cb23eeb98c8b5622e2e5c5e9abd9784a153e9d8ef9cb4dd09d749 \
-    --hash=sha256:321b033d07f2a4136d3ec762eac9f16a10ccd60f53c0c91af90217ace7ba1f19
-jinja2==2.11.1 \
-    --hash=sha256:b0eaf100007721b5c16c1fc1eecb87409464edc10469ddc9a22a27a99123be49 \
-    --hash=sha256:93187ffbc7808079673ef52771baa950426fd664d3aad1d0fa3e95644360e250
-markupsafe==1.1.1 \
-    --hash=sha256:09027a7803a62ca78792ad89403b1b7a73a01c8cb65909cd876f7fcebd79b161 \
-    --hash=sha256:e249096428b3ae81b08327a63a485ad0878de3fb939049038579ac0ef61e17e7 \
-    --hash=sha256:500d4957e52ddc3351cabf489e79c91c17f6e0899158447047588650b5e69183 \
-    --hash=sha256:b2051432115498d3562c084a49bba65d97cf251f5a331c64a12ee7e04dacc51b \
-    --hash=sha256:98c7086708b163d425c67c7a91bad6e466bb99d797aa64f965e9d25c12111a5e \
-    --hash=sha256:cd5df75523866410809ca100dc9681e301e3c27567cf498077e8551b6d20e42f \
-    --hash=sha256:43a55c2930bbc139570ac2452adf3d70cdbb3cfe5912c71cdce1c2c6bbd9c5d1 \
-    --hash=sha256:1027c282dad077d0bae18be6794e6b6b8c91d58ed8a8d89a89d59693b9131db5 \
-    --hash=sha256:62fe6c95e3ec8a7fad637b7f3d372c15ec1caa01ab47926cfdf7a75b40e0eac1 \
-    --hash=sha256:88e5fcfb52ee7b911e8bb6d6aa2fd21fbecc674eadd44118a9cc3863f938e735 \
-    --hash=sha256:ade5e387d2ad0d7ebf59146cc00c8044acbd863725f887353a10df825fc8ae21 \
-    --hash=sha256:09c4b7f37d6c648cb13f9230d847adf22f8171b1ccc4d5682398e77f40309235 \
-    --hash=sha256:79855e1c5b8da654cf486b830bd42c06e8780cea587384cf6545b7d9ac013a0b \
-    --hash=sha256:c8716a48d94b06bb3b2524c2b77e055fb313aeb4ea620c8dd03a105574ba704f \
-    --hash=sha256:7c1699dfe0cf8ff607dbdcc1e9b9af1755371f92a68f706051cc8c37d447c905 \
-    --hash=sha256:6dd73240d2af64df90aa7c4e7481e23825ea70af4b4922f8ede5b9e35f78a3b1 \
-    --hash=sha256:9add70b36c5666a2ed02b43b335fe19002ee5235efd4b8a89bfcf9005bebac0d \
-    --hash=sha256:24982cc2533820871eba85ba648cd53d8623687ff11cbb805be4ff7b4c971aff \
-    --hash=sha256:00bc623926325b26bb9605ae9eae8a215691f33cae5df11ca5424f06f2d1f473 \
-    --hash=sha256:717ba8fe3ae9cc0006d7c451f0bb265ee07739daf76355d06366154ee68d221e \
-    --hash=sha256:535f6fc4d397c1563d08b88e485c3496cf5784e927af890fb3c3aac7f933ec66 \
-    --hash=sha256:b1282f8c00509d99fef04d8ba936b156d419be841854fe901d8ae224c59f0be5 \
-    --hash=sha256:8defac2f2ccd6805ebf65f5eeb132adcf2ab57aa11fdf4c0dd5169a004710e7d \
-    --hash=sha256:46c99d2de99945ec5cb54f23c8cd5689f6d7177305ebff350a58ce5f8de1669e \
-    --hash=sha256:ba59edeaa2fc6114428f1637ffff42da1e311e29382d81b339c1817d37ec93c6 \
-    --hash=sha256:b00c1de48212e4cc9603895652c5c410df699856a2853135b3967591e4beebc2 \
-    --hash=sha256:9bf40443012702a1d2070043cb6291650a0841ece432556f784f004937f0f32c \
-    --hash=sha256:29872e92839765e546828bb7754a68c418d927cd064fd4708fab9fe9c8bb116b
+pydantic==1.4 \
+    --hash=sha256:07911aab70f3bc52bb845ce1748569c5e70478ac977e106a150dd9d0465ebf04 \
+    --hash=sha256:012c422859bac2e03ab3151ea6624fecf0e249486be7eb8c6ee69c91740c6752 \
+    --hash=sha256:61d22d36808087d3184ed6ac0d91dd71c533b66addb02e4a9930e1e30833202f \
+    --hash=sha256:f863456d3d4bf817f2e5248553dee3974c5dc796f48e6ddb599383570f4215ac \
+    --hash=sha256:bbbed364376f4a0aebb9ea452ff7968b306499a9e74f4db69b28ff2cd4043a11 \
+    --hash=sha256:e27559cedbd7f59d2375bfd6eea29a330ea1a5b0589c34d6b4e0d7bec6027bbf \
+    --hash=sha256:50e4e948892a6815649ad5a9a9379ad1e5f090f17842ac206535dfaed75c6f2f \
+    --hash=sha256:8848b4eb458469739126e4c1a202d723dd092e087f8dbe3104371335f87ba5df \
+    --hash=sha256:831a0265a9e3933b3d0f04d1a81bba543bafbe4119c183ff2771871db70524ab \
+    --hash=sha256:47b8db7024ba3d46c3d4768535e1cf87b6c8cf92ccd81e76f4e1cb8ee47688b3 \
+    --hash=sha256:51f11c8bbf794a68086540da099aae4a9107447c7a9d63151edbb7d50110cf21 \
+    --hash=sha256:6100d7862371115c40be55cc4b8d766a74b1d0dbaf99dbfe72bb4bac0faf89ed \
+    --hash=sha256:72184c1421103cca128300120f8f1185fb42a9ea73a1c9845b1c53db8c026a7d \
+    --hash=sha256:f17ec336e64d4583311249fb179528e9a2c27c8a2eaf590ec6ec2c6dece7cb3f
 requests==2.22.0 \
     --hash=sha256:9cf5292fcd0f598c671cfc1e0d7d1a7f13bb8085e9a590f48c010551dc6c4b31 \
     --hash=sha256:11e007a8a2aa0323f5a921e9e6a2d7e4e67d9877e85773fba9ba6419025cbeb4
+starlette==0.12.9 \
+    --hash=sha256:c2ac9a42e0e0328ad20fe444115ac5e3760c1ee2ac1ff8cdb5ec915c4a453411
 urllib3==1.25.8 \
     --hash=sha256:2f3db8b19923a873b3e5256dc9c2dedfa883e33d87c690d9c7913e1f40673cdc \
     --hash=sha256:87716c2d2a7121198ebcb7ce7cccf6ce5e9ba539041cfbaeecfb641dc0bf6acc
-werkzeug==0.16.1 \
-    --hash=sha256:1e0dedc2acb1f46827daa2e399c1485c8fa17c0d8e70b6b875b4e7f54bf408d2 \
-    --hash=sha256:b353856d37dec59d6511359f97f6a4b2468442e454bd1c98298ddce53cac1f04
+uvicorn==0.11.2 \
+    --hash=sha256:4a35496af38e4deeec911f4af99b0bace19669c986210b0a950ad2b7bfd5737a \
+    --hash=sha256:11f397855c7f35dc034a3d288883382a4c16afdfe6675b70896f55bd6051da64
+uvloop==0.14.0; sys_platform != "win32" and sys_platform != "cygwin" and platform_python_implementation != "pypy" \
+    --hash=sha256:08b109f0213af392150e2fe6f81d33261bb5ce968a288eb698aad4f46eb711bd \
+    --hash=sha256:4544dcf77d74f3a84f03dd6278174575c44c67d7165d4c42c71db3fdc3860726 \
+    --hash=sha256:b4f591aa4b3fa7f32fb51e2ee9fea1b495eb75b0b3c8d0ca52514ad675ae63f7 \
+    --hash=sha256:f07909cd9fc08c52d294b1570bba92186181ca01fe3dc9ffba68955273dd7362 \
+    --hash=sha256:afd5513c0ae414ec71d24f6f123614a80f3d27ca655a4fcf6cabe50994cc1891 \
+    --hash=sha256:e7514d7a48c063226b7d06617cbb12a14278d4323a065a8d46a7962686ce2e95 \
+    --hash=sha256:bcac356d62edd330080aed082e78d4b580ff260a677508718f88016333e2c9c5 \
+    --hash=sha256:4315d2ec3ca393dd5bc0b0089d23101276778c304d42faff5dc4579cb6caef09 \
+    --hash=sha256:123ac9c0c7dd71464f58f1b4ee0bbd81285d96cdda8bc3519281b8973e3a461e
+websockets==8.1 \
+    --hash=sha256:3762791ab8b38948f0c4d281c8b2ddfa99b7e510e46bd8dfa942a5fff621068c \
+    --hash=sha256:3db87421956f1b0779a7564915875ba774295cc86e81bc671631379371af1170 \
+    --hash=sha256:4f9f7d28ce1d8f1295717c2c25b732c2bc0645db3215cf757551c392177d7cb8 \
+    --hash=sha256:295359a2cc78736737dd88c343cd0747546b2174b5e1adc223824bcaf3e164cb \
+    --hash=sha256:1d3f1bf059d04a4e0eb4985a887d49195e15ebabc42364f4eb564b1d065793f5 \
+    --hash=sha256:2db62a9142e88535038a6bcfea70ef9447696ea77891aebb730a333a51ed559a \
+    --hash=sha256:0e4fb4de42701340bd2353bb2eee45314651caa6ccee80dbd5f5d5978888fed5 \
+    --hash=sha256:9b248ba3dd8a03b1a10b19efe7d4f7fa41d158fdaa95e2cf65af5a7b95a4f989 \
+    --hash=sha256:ce85b06a10fc65e6143518b96d3dca27b081a740bae261c2fb20375801a9d56d \
+    --hash=sha256:965889d9f0e2a75edd81a07592d0ced54daa5b0785f57dc429c378edbcffe779 \
+    --hash=sha256:751a556205d8245ff94aeef23546a1113b1dd4f6e4d102ded66c39b99c2ce6c8 \
+    --hash=sha256:3ef56fcc7b1ff90de46ccd5a687bbd13a3180132268c4254fc0fa44ecf4fc422 \
+    --hash=sha256:7ff46d441db78241f4c6c27b3868c9ae71473fe03341340d2dfdbe8d79310acc \
+    --hash=sha256:20891f0dddade307ffddf593c733a3fdb6b83e6f9eef85908113e628fa5a8308 \
+    --hash=sha256:c1ec8db4fac31850286b7cd3b9c0e1b944204668b8eb721674916d4e28744092 \
+    --hash=sha256:5c01fd846263a75bc8a2b9542606927cfad57e7282965d96b93c387622487485 \
+    --hash=sha256:9bef37ee224e104a413f0780e29adb3e514a5b698aabe0d969a6ba426b8435d1 \
+    --hash=sha256:d705f8aeecdf3262379644e4b55107a3b55860eb812b673b28d0fbc347a60c55 \
+    --hash=sha256:c8a116feafdb1f84607cb3b14aa1418424ae71fee131642fc568d21423b51824 \
+    --hash=sha256:e898a0863421650f0bebac8ba40840fc02258ef4714cb7e1fd76b6a6354bda36 \
+    --hash=sha256:f8a7bff6e8664afc4e6c28b983845c5bc14965030e3fb98789734d416af77c4b \
+    --hash=sha256:5c65d2da8c6bce0fca2528f69f44b2f977e06954c8512a952222cea50dad430f