为了将不同的目标请求传递给它们特定的DashApps，我将DispatcherMiddleware集成到了我的Flask项目中。在本地运行良好，但Heroku的gunicorn服务器缺少一个必需的位置参数：我称之为应用程序的"application"。我需要如何进行位置论证才能使其运行？
- 这是我通过http请求调用gunicorn成功部署后的错误日志
2020-11-04T08:14:23.211801+00:00 heroku[web.1]: State changed from starting to up
2020-11-04T08:15:55.608341+00:00 app[web.1]: [2020-11-04 08:15:55 +0000] [10] [ERROR] Error handling request /
2020-11-04T08:15:55.608354+00:00 app[web.1]: Traceback (most recent call last):
2020-11-04T08:15:55.608355+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/gunicorn/workers/sync.py", line 134, in handle
2020-11-04T08:15:55.608355+00:00 app[web.1]: self.handle_request(listener, req, client, addr)
2020-11-04T08:15:55.608356+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/gunicorn/workers/sync.py", line 175, in handle_request
2020-11-04T08:15:55.608356+00:00 app[web.1]: respiter = self.wsgi(environ, resp.start_response)
2020-11-04T08:15:55.608424+00:00 app[web.1]: TypeError: run_simple() missing 1 required positional argument: 'application'
2020-11-04T08:15:55.611228+00:00 app[web.1]: 10.63.193.41 - - [04/Nov/2020:08:15:55 +0000] "GET / HTTP/1.1" 500 0 "-" "-"
- 这是我的run.py(它包含run_simple下面的参数应用程序(
from werkzeug.middleware.dispatcher import DispatcherMiddleware
from werkzeug.serving import run_simple
from app_datacenter.flask_app import flask_app
from app_datacenter.dash_apps.sessionlist_dummydata import app as sessionlist
from app_datacenter.dash_apps.sessionreport_realdata import app as sessionreport
application = DispatcherMiddleware(flask_app,
{
'/app1': sessionlist.server,
'/app2': sessionreport.server
}
)
if __name__ == '__main__':
run_simple(
hostname='localhost',
port=5000,
application=application,
use_reloader=True,
use_debugger=True,
use_evalex=True
)
- 这是我的Procfile
web: gunicorn run:run_simple --log-file=-
我发现了我的错误-必须在Procfile中调用应用程序(而不是以前尝试的方法(。有了这个Procfile，它运行得很好：
web: gunicorn run:application --log-file=-