I am trying to create a folder traversing api with fastapi.
Say I have an end point like this:
#root_router.get("/path/{path}")
def take_path(path):
logger.info("test %s", path)
return path
If I do to the browser and call "URL:PORT/path/path"
it returns "path", easy. But if I try "URL:PORT/path/path/path" the code doesnt even get to the logger. I guess that makes sense as the API doesnt have that end point in existence. But it DOES exist on my server. I have figured out other ways to do this, i.e. pass the path as an array of params and rebuld in code with / separator, but passing params in url feels a bit clunky, if I can move through the paths in the url the same as my server, that would be ideal. Is this doable?
Thanks.
Add :path to your parameter:
#root_router.get("/path/{path:path}")
async def take_path(path: str):
logger.info("test %s", path)
return path
Notice that this is a Starlette feature.
Related
In the google appengine datastore, there is a BlobKey (labled as csv). The key is in the following format: encoded_gs_file:we1o5o7klkllfekomvcndhs345uh5pl31l. I would like to provide a download button to save this information. My question is, what is the endpoint that i can use to access this. More information about the BlobKey is below.
The web app is being run using dev_appserver.py and uses python 2.7 (Django) as the backend. Currently, a button exists, but when clicking on it, it returns a 404 error. The download link that the button provides is:
https://localhost:8080/data?key=encoded_gs_file:dwndjndwamwljioihkm
My question is, how can i use the blobkey to generate a url that can be downloaded; or how can i check my code base to find how the url that i can use is being generated?
class BlobstoreDataServer(blobstore_handlers.BlobstoreDownloadHandler):
def get(self):
k = str(urllib.unquote(self.request.params.get('key','')))
logging.debug(k)
blob_info = blobstore.BlobInfo.get(k)
logging.debug(blob_info)
if (not blob_info) or (not blob_info.size):
self.error(404)
return
self.response.headers['X-Blob-Size'] = str(blob_info.size)
self.response.headers['Content-Type'] = blob_info.content_type
self.response.headers['Content-Disposition'] = (u'attachment; filename=%s' % blob_info.filename).encode('utf-8')
self.send_blob(blob_info)
Edit: New Images
Do you have a Request Handler for the route /data that does something like this?
from google.appengine.ext import blobstore
class DisplayBlob(blobstore_handlers.BlobstoreDownloadHandler):
def get(self):
blob_key = self.request.GET['key']
self.send_blob(ndb.BlobKey(blob_key))
self.response.headers['Content-Type'] = 'text/plain'
EDIT:
Ok so the 404 is probably being thrown by you by this line: self.error(404) right? Add a logging.warn('BlobstoreDataServer is throwing 404') right before to make sure. Also are you seeing this line logging.debug(k) print (I want to confirm that BlobstoreDataServer is even getting hit)? You may need to do logging.getLogger().setLevel(logging.DEBUG) to see it.
So that means blobstore.BlobInfo.get(k) is returning None. Focus on making sure that is working first, you can do this in the interactive console.
Go to http://localhost:8000/blobstore
Open one of them and copy the Key (encoded_gs_file:dwndjndwamwljioih...)
Go to the Interactive console (http://localhost:8000/console) and enter this code and hit 'EXECUTE' and make sure it is able to find it:
If that step didn't work, then then something is up with your dev_appserver.py's blobstore emulator
If that works, then just manually paste that same key at the end of your download link:
https://localhost:8080/data?key=<paste_encoded_gs_file_key_here>
If this step didn't work then something is up with your download handler, maybe this line is transforming the key somehow str(urllib.unquote(self.request.params.get('key','')))
If this step worked then something is up with your code that generates this link https://localhost:8080/data?key=..., maybe you're actually writing to a different gcs_filename than what you are constructing a different BlobKey for.
I feel like I'm running into a brick wall, as I'm not getting anywhere with this, and I believe, simple task.
I'm trying to generate a URL by the likes of '/path/to/url', but upon gazing at multiple StackOverflow Q&A's, the official documentation for cherrypy, I still cannot seem to wrap my head around the issue.
Here's my code so far:
import details
import input_checker as input
import time
import cherrypy
class Index(object):
#cherrypy.expose
def input(self):
return input.check_input()
#cherrypy.expose
def stream(self):
while True:
return 'Hey'
#return input.check_input()
time.sleep(3)
if __name__ == '__main__':
index = Index()
cherrypy.tree.mount(index.stream(), '/input/stream', {})
cherrypy.config.update(
{'server.socket_host': '0.0.0.0'})
cherrypy.quickstart(index)
So essentially, I want to be able to visit http://127.0.0.1:8080/input/stream, and I will be returned with the given result.
After executing this code, and multiple variants of it, I'm still being returned with a 404 not found error, and I'm not sure what I need to do, in order to get it working.
Any tips and/or supporting documentation that I may have skimmed over?
Thanks guys.
So there are couple problems here, why do you use MethodDispatcher do you actually need it?
To serve you stream function on /input/stream you have to mount it as such:
cherrypy.tree.mount(index.stream(), '/input/stream', your_config)
note /input/stream instead of /stream.
But because you're using MethodDispatcher this will likely make your endpoint return 405 as GET is not allowed on this endpoint - to fix that just remove the MethodDispatcher bit.
But if you do require MethodDispatcher you will have to refactor a bit to something like that:
class Stream:
exposed = True # to let cherrypy know that we're exposing all methods in this one
def GET(self):
return something
stream = Stream()
cherrypy.tree.mount(stream , '/index/stream',
{'/':
{'request.dispatch': cherrypy.dispatch.MethodDispatcher()}
}
)
Also make sure to not actually call your methods when mounting them into cherrypy tree, just pass in the name of the function/class
i'm working with bottle framework and i found this problem.
When i used static path everything works fine, but when i used dynamic routing the path for .css and .js change and give not file found error.
I have this method:
#get('/mod_user/<id_user>')
def mod_user(id_user):
user = driver.get_user_by_id(id_user)
return template('moduser', user=user)
And i have this one for static files, which works fine for path like '/contact', etc:
#route('/static/:path#.+#', name='static')
def static(path):
return static_file(path, root='static')
the problem come beacuse add /mod_user to the path for search static:
http://10.141.0.63:8080/mod_user/static/css/formularioadd.css
I tried changing path for static in several ways and nothing works.
Some idea?
thank you all
You have no route that matches /mod_user/static.
(Also, you're needlessly using a regex.)
Have you tried something like this?
#route('/mod_user/static/<path:path>')
def static(path):
...
I'm using cherrypy with Mako as a template engine.
I want Mako to lookup different directories based on what app is being requested.
I.e.
I have three 'apps': Site, Admin and Install.
They all have their own template folder, structure looking something like:
/template
/template/site
/template/admin
/template/install
/template/system
/system contains some system wide templates, like 404 pages, etc.
I'm using Twiseless as a reference whilst trying to get to grips with cherrypy / mako, but I'm stuck with how to do this.
Read on for a brief overview of how I've tried to do this, but a warning: I think I'm going about this completely the wrong way! :) So, if you have any ideas/pointers, it might be a good idea to save yourself the trouble of reading any further than this.
In my main file, server.py, I do something like:
from libs.plugins.template import MakoTemplatePlugin
engine = cherrypy.engine
makoTemplate = MakoTemplatePlugin(engine, self.base_dir)
setTemplateDirs(makoTemplate, self.template_path)
MakoTemplatePlugin is a slightly modified version of the plugin by the same name found in Twiseless, linked above.
What this code does is set the TemplateLookup to use the default template directories from my global config file. i.e.
/template
/template/system
Then, each time an app is loaded, I call a function (setTemplateDirs) to update the directories where Mako searches.
I thought this would work, but it doesn't. Initially I made the error of creating a new instance of MakoTemplatePlugin for each app. This just resulted in them all being called on each page load, starting with the first one instantiated, containing just the basic, non-app specific directories.
As this was called first, it was triggering a 404 error, as it was searching in the wrong folders.
I instead made sure to pass a reference to the MakeTemplatePlugin to all of my apps. I thought if I ran setTemplateDirs each time each app is called, this would solve the problem... but it doesn't.
I don't know where to put the function so it will run every time a page is requested...
e.g.
# /apps/site/app.py
import somemodule.setTemplateDirs
class Site(object, params):
def __init__(self):
self.params = params
self.makoTemplate = params['makoTemplate']
self.base_path = params['base_path']
setTemplateDirs(self.makoTemplate, self.base_path, '', '/')
#cherrypy.expose
#cherrypy.tools.render(template='index.html')
def index(self):
pass
This obviously just works when the application is first loaded... I tried moving the update function call into a seperate method update and tried calling that for each page, e.g:
#cherrypy.exposed
#cherrypy.tools.render(template='index.html')
#update
def index(self):
pass
But this just gives me config related errors.
Rather than to continue to mess about with this, there must be an easier way.
How would you do it?
Thanks a lot,
Tom
I got this working. Thanks to stephan for providing the link to the mako tool example: http://tools.cherrypy.org/wiki/Mako.
I just modified that slightly to get it working.
If anyone's wondering, the basis of it is that you define tools.mako.directories in your global config, you can then override that in individual app config files.
e.g.
server.conf
...
tools.mako.directories: ['', 'system']
...
site.conf
...
tools.mako.directories: ['site', 'system']
...
I did some extra work to translate the relative URIs to absolute paths, but the crux of it is explained above.
I'm using pylons, and want to use clever css.
I created a controller SassController to handle .sass requests, but in the config/routing.py, I don't know how to write the mapping.
What I want is:
client request: http://localhost:5000/stylesheets/questions/index.sass
all such requests will be handled by SassController#index
I tried:
map.connect('/{path:.*}.sass', controller='sass', action='index')
But found only: http://localhost:5000/xxx.sass will be handled, but http://localhost:5000/xxx/yyy.sass won't.
What should I do now?
The routing code using regular expressions so you can make it eat everything in the url regardless of slashes.
The docs are here
It'll look something like:
map.connect(R'/{path:.*?}.sass', controller='SassController', action='index')
#in the SassController
def index(self, path):
return path
http://localhost:5000/blah/blah/something.sass will call SassController.index with path = blah/blah/something