backend | ️ REST backend for Reacher - Open-Source Email | REST library
kandi X-RAY | backend Summary
kandi X-RAY | backend Summary
This repository holds the backend for Reacher. The backend is a HTTP server with the following components:.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of backend
backend Key Features
backend Examples and Code Snippets
def __init__(self, inputs, outputs, updates=None, name=None,
**session_kwargs):
updates = updates or []
if not isinstance(updates, (list, tuple)):
raise TypeError('`updates` in a Keras backend function '
def execute_with_python_values_replicated(executable, arguments, backend):
"""Execute on many replicas with Python values as arguments and output.
Args:
executable: the program to run.
arguments: a list of lists of Python values indexed
def run(self,
fetches,
feed_dict=None,
options=None,
run_metadata=None,
callable_runner=None,
callable_runner_args=None,
callable_options=None):
if self._send_traceback_and_sou
Community Discussions
Trending Discussions on backend
QUESTION
So I created a poll model in my Django app. I'm going thorugh the polling app tutorial posted on the Django website, however, I'm using a remote MySQL database rather than a SQLite database.
...ANSWER
Answered 2021-Jun-15 at 20:06I'm thinking the suspect is an unsuccessful migration. Let's undo it and try again
QUESTION
So... I can sympy.integrate
a normal distribution with mean and standard deviation:
ANSWER
Answered 2021-Jun-15 at 01:38Here's a close case that works:
QUESTION
Currently on a login page, I need to have both the score and checkbox reCaptcha evaluation on the same page, if the score fails I need to dynamically load the checkbox score.
Currently I have it working although I don't know if I implemented it correctly.
In my HTML header I have
and in the html body I have
In AJAX to load the checkbox I have:
...ANSWER
Answered 2021-Jun-15 at 18:03I received an official response for the reCAPTCHA Enterprise support team:
Thanks for reaching out here. We recommend not putting a checkbox behind a score. More details are available on this here: https://cloud.google.com/recaptcha-enterprise/docs/faq#id_like_to_use_the_score_from_to_show_a_challenge_checkbox_widget_how_can_i_do_this
Not only are there concerns listed in that FAQ point about the efficacy of a checkbox widget when placed behind a score, but it also over simplifies how the checkbox widget works. We perform "adversarial challenging" on our checkbox widget (essentially, we show harder challenges to known attackers), but we're unable to do so when placed behind a score reCAPTCHA.
All of this being said, if you do wish to do it anyway, you would have to include the JS file twice.
And this is from the link posted in their email:
I'd like to use the score from reCAPTCHA Enterprise to show a challenge / checkbox widget. How can I do this?
We recommend that you do not do this. reCAPTCHA Enterprise expects to see both good and bad user behavior on implementation. If you trigger a reCAPTCHA Enterprise checkbox widget based on a reCAPTCHA Enterprise score, the checkbox widget is only being exposed to bad traffic. Due to this, the widget can have a more difficult time determining whether to show a challenge or not. This can result in issuing NO CAPTCHAs (no challenge shown at all) to fraudulent users or bots due to trouble making that differentiation.
In these cases, we recommend just using a challenge-based site key upfront (like reCAPTCHA Enterprise with a CHECKBOX Site Key) instead, but installing a SCORE Site Key on every page, as well as issuing grecaptcha.enterprise.execute to train the model, but foregoing assessments on the SCORE tokens. Essentially, this achieves the goal by training the reCAPTCHA Enterprise CHECKBOX site keys on user behavior, resulting in less challenges shown to legitimate users and more challenges to fraudulent ones.
QUESTION
I am trying to proxy requests from my containerized React application to my containerized Flask application.
I was starting the application using npm start (in Docker), and I did not have any issues proxying requests. However, I learned that npm start is not a good way to proceed in production.
Following the advice here: Run a React App in a Docker Container , I am able to start my containerized production React, but now the requests are not proxied.
Within the React app, all requests are handled with axios and are formatted: "/api/v1/endpoint". It seems that others have had issues between "http://localhost:80/api/v1/endpoint" and "/api/v1/endpoint". I do not believe this is my issue, unless it arises only in the production environment.
I have also tried changing my "proxy" address in package.json to the location of the dockerized flask container, and later to the name of the docker container, but I have not been able to make either solution work.
If anyone can provide guidance on launching a containerized, production React app that proxies requests to a backend container, please advise.
I am open to using a different server, if the procedures in "Run a React App in a Docker Container" need to be updated.
I have looked these solutions:
Proxy React requests to Flask app using Docker
...ANSWER
Answered 2021-Jun-15 at 16:20After digging around and trying a bunch of solutions, here is what worked:
1.) I changed my docker file to run an nginx server:
QUESTION
I have a generator object, that loads quite big amount of data and hogs the I/O of the system. The data is too big to fit into memory all at once, hence the use of generator. And I have a consumer that all of the CPU to process the data yielded by generator. It does not consume much of other resources. Is it possible to interleave these tasks using threads?
For example I'd guess it is possible to run the simplified code below in 11 seconds.
...ANSWER
Answered 2021-Jun-15 at 16:02Send your data to separate processes. I used concurrent.futures because I like the simple interface.
This runs in about 11 seconds on my computer.
QUESTION
I want to use firebase auth for my android and ios applications with custom backend. So I need some way of authentication for api calls from mobile apps to the backend.
I was able to find following guide in firebase documentation which suggests to sent firebase id token to my backend and validate it there with firebase Admin SDK. https://firebase.google.com/docs/auth/admin/verify-id-tokens
But this approach does not seem to be a security best practice. For example here https://auth0.com/blog/why-should-use-accesstokens-to-secure-an-api/ it is said that for API access one should use access tokens rather than id tokens.
Are there any good pattern for using firebase auth with my backend?
...ANSWER
Answered 2021-Jun-15 at 15:02firebaser here
Firebase itself passes the ID token with each request, and then uses that on the server to identify the user and to determine whether they're authorized to perform the operation. This is a common (I'd even say idiomatic) approach to authentication and authorization, and if there's a security risk that you've identified in it, we'd love to hear about it on https://www.google.com/about/appsecurity/
From reading the blog post it seems the author is making a distinction between authentication (the user proving their identify) and authorization (them getting access to certain resources based on that identity), but it'd probably be best to ask the author for more information on why that would preclude passing an ID token to identify the user.
QUESTION
I'm using Firebase Real-Time Database as backend. I want it to increase by 1 max for each request For example:
...ANSWER
Answered 2021-Jun-15 at 14:34To validate that the new value is one higher than the existing value:
QUESTION
I'm using Django for Backend, PostgresSQL as DB and HTML, CSS and Javascript as Frontend. I am calling Django API via Javascript. Where user is adding a product to a cart, and I'm calling the cart with DRF to show all the data to the user. But problem is that, user can see all the data of other user. So, how can authenticated user can see his/her selected product on a cart.
Here is a detailed code:
views.py
adding product to cart
ANSWER
Answered 2021-Jun-15 at 13:25you have to pass user id when you are calling ajax.
If you are using GET
method than pass user id in URL
and access it via argument in your view for eg.
QUESTION
I have a route in the backend that I would like to call every X amount of time. Right now I am using ajax to make the call from a set interval function on the client side:
...ANSWER
Answered 2021-Jun-15 at 13:14You can make an internal call from the server itself, rather than from within a client. It would follow exactly the same logic (with the interval), but the code would be on the backend :)
Also if you'd like it a bit more well defined, you could use something like node-cron:
QUESTION
This is my code:
...ANSWER
Answered 2021-Jun-15 at 12:20React is a framework that is state-based - the state informs the render of the DOM. Trying to use querySelector and its equivalent won't work like you think it will.
So here's an example of this working.
We set the state to be the index of the span (initially nothing).
handleClick
which is attached to thediv
(or would be attached to yourScale
element) grabs the data id attribute from the span and adds it to the state.This triggers the page to re-render, the spans get rebuilt, and depending on the state the
selected
class gets added.
There is no other DOM manipulation going on. React does all that heavy lifting for you.
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