RESTProvider directly usable with Web3 from web3.py python module. A demo REST server implementation using Flask. A demo REST proxy implementation using tinyrpc and RESTProvider.
Requirement : python3 and pipenv
make env
from web3 import Web3
from web3_restprovider import RESTProvider
web3 = Web3(RESTProvider('http://localhost:8080'))
It is also possible to use WEB3_PROVIDER_URI environment variable : export WEB3_PROVIDER_URI="rest+http://api.infura.io/v1/jsonrpc/mainnet"
And then :
from web3 import Web3
from web3_restprovider import RESTProvider
web3 = Web3(RESTProvider())
from gevent.wsgi import WSGIServer
from web3_restprovider import RESTServer
http_server = WSGIServer(('', 8080), RESTServer)
http_server.serve_forever()
uwsgi --http-socket localhost:8080 --plugin python --manage-script-name --mount /=web3_restprovider:RESTServer --virtualenv $(pipenv --venv)
export WEB3_PROVIDER_URI="rest+http://api.infura.io/v1/jsonrpc/mainnet"
uwsgi --http-socket localhost:8545 --plugin python --manage-script-name --mount /=web3_restprovider:RESTProxy --virtualenv $(pipenv --venv)
Assuming 2 local RESTServer listening on localhost port 8081 and 8082 (forwarding request to different ethereum node), basic haproxy.conf :
global
maxconn 20000
log 127.0.0.1 local0
user haproxy
chroot /usr/share/haproxy
pidfile /run/haproxy.pid
daemon
frontend main
bind :8080
mode http
log global
option httplog
option dontlognull
option http_proxy
option forwardfor except 127.0.0.0/8
maxconn 8000
timeout client 30s
default_backend app
backend app
mode http
balance roundrobin
timeout connect 5s
timeout server 30s
timeout queue 30s
server app1 127.0.0.1:8081 check
server app2 127.0.0.1:8082 check
option httpchk get /healthcheck
http-check expect status 200
default-server inter 3s fall 3 rise 2
TODO