backend

by devs-nest Ruby Version: Current License: Apache-2.0

X-Ray Key Features Code Snippets(3)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | backend Summary

backend is a Ruby library. backend has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

backend

Support

Quality

Security

License

Reuse

Support

backend has a low active ecosystem.

It has 8 star(s) with 11 fork(s). There are 11 watchers for this library.

It had no major release in the last 6 months.

There are 0 open issues and 15 have been closed. On average issues are closed in 83 days. There are 8 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of backend is current.

Quality

backend has no bugs reported.

Security

backend has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

backend is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

backend releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

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backend Key Features

No Key Features are available at this moment for backend.

backend Examples and Code Snippets

Initialize the backend .

python

Lines of Code : 55

License : Non-SPDX (Apache License 2.0)

Copy

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 '

Execute the given arguments with the given backend .

python

Lines of Code : 21

License : Non-SPDX (Apache License 2.0)

Copy

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

Runs the trace backend .

python

Lines of Code : 20

License : Non-SPDX (Apache License 2.0)

Copy

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

Django says field does not exist when it does exist

Can't integrate simple normal distribution in sympy, depending on mean and deviation constants

How do I load reCapctha Score and Checkbox on the same page?

proxying from containerized production react to containerized flask

How to thread a generator

Security concern of using Firebase ID tokens for authentication on my custom backend

Firebase Real Time Database Validate Number Increment

How to call Django API with Javascript with Authenticated user in Django

Best way to a call server side route without using front end Nodejs

How to find an HTML element in array of HTML siblings of one parent ReactJS

QUESTION

Django says field does not exist when it does exist

Asked 2021-Jun-15 at 20:06

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 20:06

I'm thinking the suspect is an unsuccessful migration. Let's undo it and try again

Source https://stackoverflow.com/questions/67992523

QUESTION

Can't integrate simple normal distribution in sympy, depending on mean and deviation constants

Asked 2021-Jun-15 at 19:02

So... I can sympy.integrate a normal distribution with mean and standard deviation:

...

ANSWER

Answered 2021-Jun-15 at 01:38

Here's a close case that works:

Source https://stackoverflow.com/questions/67978829

QUESTION

How do I load reCapctha Score and Checkbox on the same page?

Asked 2021-Jun-15 at 18:03

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 18:03

I 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.

Source https://stackoverflow.com/questions/67854220

QUESTION

proxying from containerized production react to containerized flask

Asked 2021-Jun-15 at 16:20

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

Flask, React in a Docker: How to Proxy

Posting from React to Flask

...

ANSWER

Answered 2021-Jun-15 at 16:20

After digging around and trying a bunch of solutions, here is what worked:

1.) I changed my docker file to run an nginx server:

Source https://stackoverflow.com/questions/67829521

QUESTION

How to thread a generator

Asked 2021-Jun-15 at 16:02

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 16:02

Send your data to separate processes. I used concurrent.futures because I like the simple interface.

This runs in about 11 seconds on my computer.

Source https://stackoverflow.com/questions/67958976

QUESTION

Security concern of using Firebase ID tokens for authentication on my custom backend

Asked 2021-Jun-15 at 15:02

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 15:02

firebaser 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.

Source https://stackoverflow.com/questions/67982633

QUESTION

Firebase Real Time Database Validate Number Increment

Asked 2021-Jun-15 at 14:34

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 14:34

To validate that the new value is one higher than the existing value:

Source https://stackoverflow.com/questions/67985577

QUESTION

How to call Django API with Javascript with Authenticated user in Django

Asked 2021-Jun-15 at 13:25

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 13:25

you have to pass user id when you are calling ajax. If you are using GETmethod than pass user id in URL and access it via argument in your view for eg.

Source https://stackoverflow.com/questions/67984714

QUESTION

Best way to a call server side route without using front end Nodejs

Asked 2021-Jun-15 at 13:16

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 13:14

You 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:

Source https://stackoverflow.com/questions/67986901

QUESTION

How to find an HTML element in array of HTML siblings of one parent ReactJS

Asked 2021-Jun-15 at 12:20

This is my code:

...

ANSWER

Answered 2021-Jun-15 at 12:20

React 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 the div (or would be attached to your Scale 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.

Source https://stackoverflow.com/questions/67985249

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install backend

If you don't have build tools installed (gcc, make etc) install them. Install ruby using rbenv. Install bundle and rails. ALWAYS use a password containing uppercase, lowercase, and special characters or else MySQL will give error (eg. Test@1234).
Setup .env file and run.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

Find more information at: