flask-base | a skeleton for flask | Animation library
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kandi X-RAY | flask-base Summary
a skeleton for flask
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- Create a Flask app
- Configure an app
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Trending Discussions on flask-base
QUESTION
I am trying to pass a controlled error code out of a script which calls multiple binaries using os.system. However, despite checking for error code returned by os.system and catching exceptions, I get the code 244 out in case any of the binaries fail to run.
...ANSWER
Answered 2021-Apr-07 at 18:02Exit codes in Linux are 1 byte or 8 bits.
500 is 0b111110100
that's 9 bits. The leading 1 gets trimmed to fit into 8 bits.
We're left with 0b11110100
. And that's 244.
QUESTION
I'd like to launch a Flask-based web app on Google Cloud Platform's App Engine, which has the ability to call a Cloud Function, written in python. References to do these things independently below:
https://cloud.google.com/appengine/docs/standard/python3/building-app/writing-web-service https://cloud.google.com/functions/docs/first-python
However, calling a cloud function from a (python) web app hosted on App Engine seems to be under documented. Could anyone link a resource that has accomplished this effect?
...ANSWER
Answered 2021-Mar-19 at 20:55In this answer, I will list example documents to understand authorization in Google Cloud and how to call Cloud Functions from App Engine. Read these links/documents and understand how everything works and is connected together. Once you understand the basics, authorization in Google Cloud is very easy to implement and secure.
Step 1 - Understand Authorization in Google Cloud
Google Cloud uses OAuth for most services and APIs. Some services still support API Keys. Read this article to get a foundation of Server/Service to Server/Service Authorization:
Using OAuth 2.0 for Server to Server Applications
Key points to understand are Access Tokens and Identity Tokens. Another token type is the Refresh Token which is primarily used to refresh OAuth tokens created from user credentials.
Step 2 - Understand the JWTs used for Authorization
This article is written for IoT devices but the details are the same/similar for all Google Cloud services. This link includes sample code.
Step 3 - Understand Cloud Functions Authorization
Cloud Functions uses OAuth Identity Tokens to authorize requests from other services and users. An OAuth Identity Token is a signed JWT that asserts the identity of the caller. Identity Tokens are signed by a Google owned or managed private key and verified by Google before granting access to the called Cloud Function.
Authenticating Developers, Functions, and End-users
Step 4 - Understand how to call another service from App Engine Standard
Now that you understand how authorization is performed in Google Cloud, you need to understand how to create the token used for authorized calls to your Cloud Function. This article discusses App Identity in Python and how to assert an identity to call Cloud Functions or any Google API/Service from App Engine Standard.
QUESTION
I'm new to python. I have a task to build a API endpoint that takes an image and returns the image. So, I chose flask
to get my job done.
I followed this SO question - Can a flask-based API return a file for an API endpoint to upload image file.
The code is as follows:
...ANSWER
Answered 2020-Jul-17 at 15:26Try r.content
which is bytes instead of r.text
which is a string.
QUESTION
So what I'm trying to do is to dockerize a Flask REST API that uses Serverless and DynamoDB. I followed this tutorial but it doesn't mention about dockerizing the whole thing. I've also tried to do some research and came up with very minimal resources, like this for example.
Is this even possible? If so, some links to guides/advice would be helpful. Thanks.
...ANSWER
Answered 2020-Jul-11 at 10:47You could achieve that with localstack https://github.com/localstack/localstack. This is assuming that you don't want to have this locally. The services that you mentioned are in the free version of localstack so you should be good to use it.
I think there are some people explaining most of steps a quick search I found this: https://dev.to/goodidea/how-to-fake-aws-locally-with-localstack-27me
QUESTION
So I made a very simple flask-based app and hosted it in a kubernetes pod.
When I open the logs in Rancher, I can see this warning:
...ANSWER
Answered 2020-Jul-02 at 17:05/health
is a normal healthcheck endpoint that k8s needs.
Flask doesn't print to stdout by default because it buffers lines to make I/O more efficient. You can either call sys.stdout.flush()
, print(flush=True)
, set env var PYTHONUNBUFFERED=1
in your Dockerfile (probably the easiest) or just use logging
module as we all should.
You can read more about this env var here.
QUESTION
ANSWER
Answered 2019-Aug-27 at 00:40This can be achieved by calling $(flash).parent().remove();
inside of a callback function passed to setTimeout()
.
The setTimeout()
method will call the function you provide after the number of milliseconds specified. Passing 5000 as the second argument would cause the element to be removed after 5 seconds:
QUESTION
ANSWER
Answered 2019-Aug-26 at 15:26You can do this with jQuery. Add an onclick function to the button like so:
And here's the code to delete:
QUESTION
While testing my Flask-based web app on various browsers, I found out that Chrome browser appends a "/" after one of of my routes and only one. This behavior results in a page not found error since my routes is like this:
...ANSWER
Answered 2019-Jul-12 at 20:58The "/" character is a forward slash. Said this, strict_slashes
, which requires that the URL has a trailing slash if set, or requires that the URL does not have a trailing slash otherwise, is enabled by default, causing this issue.
You can disable strict slashes in your entire app by doing:
QUESTION
I'm making a program with selenium (python). It was working, and out of nowhere, the webdriver no longer works. I'm developing on a windows environment (and it works fine), but once I upload the code to the production server (Ubuntu), I try to open the web driver and it only displays data;
, the driver hangs, then closes. No code after that continues.
Example:
...ANSWER
Answered 2019-Jul-03 at 20:21I turns out, windscribe (vpn) interferes with the connection to the chrome webdriver, I believe it has something to do with its built-in firewall, after uninstalling it, calling sudo apt autoremove -y
and a reboot, it works properly!
Edit: I re-installed the VPN (windscribe) and de-activated the included firewall and it worked properly after that.
QUESTION
I'm building an internal only flask-based application for work. I would like the program to update automatically from the master branch of my git repository. The application is running on a Linux based (Ubuntu server) VM. Is there a way to get the flask app to automatically pull changes and update from the master branch?
Edit: I don't want a python module updater from pip/git (most common search result)
Update: I found a module called micropython-ota-updator, the problem with this is it seems to update on reboots. The software I'm building is meant to consistently stay up. My inital idea was to check for updates at a interval.
...ANSWER
Answered 2019-Jun-28 at 20:24For anyone else having this issue: I decided on dynamically generating GitHub links and building a function for cloning the repo. There were also some configuration files that get saved outside of the repo before cloning. Once the repo is cloned, the configuration files are moved back into their proper places in the new repo. If anyone else wants more information about this, let me know. I'm glad to share my discoveries!
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Install flask-base
You can use flask-base like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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