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Use a thread local to try to keepalive #33

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Use a thread local to try to keepalive #33

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Use a thread local to try to keepalive
mic159 Aug 12, 2020
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mic159 Aug 12, 2020
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19 changes: 18 additions & 1 deletion react_render/core.py
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Original file line number Diff line number Diff line change
@@ -1,10 +1,26 @@
import os
import json
import threading

import requests
from react_render.exceptions import ComponentSourceFileNotFound, ComponentRenderingError

DEFAULT_SERVICE_URL = 'http://localhost:63578/render'

_requests_session_store = threading.local()


def requests_keepalive_session() -> requests.Session:
"""
Creates a session that can utilize keep-alive behaviour across multiple
requests, by maintaining the session within a thread-local.
"""
session = getattr(_requests_session_store, "react_session", None)
if not session:
session = requests.Session()
setattr(_requests_session_store, "react_session", session)
return session


def render_component(path_to_source, props=None, to_static_markup=False, json_encoder=None, service_url=None, timeout=10):
if not os.path.exists(path_to_source):
Expand All @@ -16,7 +32,8 @@ def render_component(path_to_source, props=None, to_static_markup=False, json_en
if service_url is None:
service_url = DEFAULT_SERVICE_URL

response = requests.post(service_url,
session = requests_keepalive_session()
response = session.post(service_url,
timeout=timeout,
headers={'Content-Type': 'application/json'},
data=json_encoder({
Expand Down