fontend | 使用Node、Vue、ElementUI、iViewUI , 验证码等等搭建一个综合性网站 | Application Framework library
kandi X-RAY | fontend Summary
kandi X-RAY | fontend Summary
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Top functions reviewed by kandi - BETA
- Reads an image file .
- Check if value exists in array
fontend Key Features
fontend Examples and Code Snippets
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Trending Discussions on fontend
QUESTION
I am trying to receive more than one file per time using reactjs and flask api, but I get this error
...ANSWER
Answered 2022-Jan-21 at 01:42@app.route('/photo/create', methods=['POST', 'PUT']) # new
def create_photo():
files = flask.request.form.getlist("file")
print(files) # use loggers
for file in files:
if isinstance(file, str): # check if the file is a string as in path to the file
with open(f"{file}", encoding='utf-8') as f: # read
yield f.read() # yielding is an option but then you need to consume the data differently on the frontend.
QUESTION
I am trying to use the library direct_cloud_upload to upload directly a file to a Google Cloud Storage Bucket without going through my cloudrun (to bypass the 32Mb request limitation).
Unfortunately, I consistently have this error: No file was submitted. Check the encoding type on the form. on the admin fontend when I try to upload a file, even though the file is sucessfully uploaded to the storage.
There is obviously something I am missing, here is my code:
models.py
...ANSWER
Answered 2021-Apr-19 at 12:56It turns out the fiels in the model should have been a CharField.
models.py
QUESTION
I have a vue.js frontend and I need to make api calls to an external api which doesn't allow cross-origin. Is there a way to proxy this in the vue frontend, in development I used a devServer proxy and this worked. I could always forward it through my own spring backend but this seems like a worse solution then just proxy in the fontend.
...ANSWER
Answered 2021-Mar-01 at 15:15You can't do it in production, proxy through bachend server seems right solution for you. Also you can do a lot of stuff, like caching answers from external api, working with data immediately, without additional frontend work. Just try to do it.
If i were you, i'd just create/add separate service on backend that should work with that api.
QUESTION
I want to use Socket.io with a React frontend and NodeJS & Express backend but have both running on different ports for development (Fontend: 3000; Backend: 8080).
When the Socket.io-Client has loaded my frontend executes var socket = io('http://localhost:8080');
and then automatically makes a GET request to http://localhost:8080/socket.io/?EIO=4&transport=polling&t=NSlH7of
. That request should normally return something like 0{"sid":"XXX","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":5000}
but the Chrome Dev Tools say that the status is (failed) net::ERR_FAILED
. There also is no response available in the Dev Tools.
However when I run the GET request in my HTTP-Client it returns exactly what I expect it to return.
That error looks like it's caused by the Socket.io-Client but I get no error whatsover besides the failed GET request. When I run everything on one port (Frontend served with webpack by the backend) the request goes through as expected.
I would appreciate any help! Thanks!
server.js
...ANSWER
Answered 2021-Jan-23 at 13:12If you want to hit port 8080 for your socket.io connection, you must set up a server for that port in your nodejs program (your back end). Code running in browsers (front-end code in React parlance) like your code
QUESTION
ANSWER
Answered 2021-Jan-10 at 06:37Hi @Mehedi Hasan Rooman
You haven't activated some dependent plugins, that's why it is showing like above screenshot.
Steps to activate WordPress plugins:
- Login to your WordPress Admin. Navigate to the Plugins and click on the activate link to activate the Elementor plugins.
QUESTION
It's complicated but I will try to explain what do I mean. My idea is to server send to client next 50 records while user is scrolling a page. When user will arrive to specified in frontend point, fontend will ask server for next 50 entities. What SQL query do I need?
A query should work like (in pseudo-SQL): SORT TABLE table_name SELECT entity BY INDEX (150-200)
.
I hope that I've explained understandable.
Thanks so much ;)
EDIT 1
I'm using PostgreSQL. ...
ANSWER
Answered 2020-Nov-07 at 11:55I think the answer will depend on the SQL dialect that you are using. Below is a small example using T-SQL. It should point you in the right direction. Here you should find an answer to your problem in T-SQL dialect: FETCH and OFFSET explained
Edit: For PostgreSQL check the following link: PostgreSQL FETCH example
QUESTION
ANSWER
Answered 2020-Sep-22 at 13:25QUESTION
I'm struggling with setting up/deploying my production environment on a server. My frontend image is built with Dockerfile.static
...ANSWER
Answered 2020-Aug-20 at 13:27I think it might be useful for people who are not that experienced with deployment to see a basic example of how to do this. So, I wanna provide such an example and what my next steps would be if I were to improve my solution. Feedback is welcome!
Frontend container- serves the statics, which you get by building your vue js project
- Dockerfile.static is used for building the container
QUESTION
I am learning react. I have written backend code as follows.
...ANSWER
Answered 2020-Jul-28 at 09:10In case of any response other than 2xx from backend, the catch block runs on frontend and we can get data using err.response
object. To get data, use the following code
QUESTION
I created a Flask API with a Celery worker. User fires "start tests" button which makes a POST request that returns url which user can use to get results of tests every 5 seconds (needed to update fontend progress bar). The Celery task includes threading. My goal is to update Celery task state based on the results of threads concurently. I don't want to wait until all my threads finish to return their result. My Celery task looks like this:
...ANSWER
Answered 2020-Jun-07 at 10:44You can simply use update_state to modify state of the task, from each of those threads if that is what you want. Furthermore, you can create your own, custom states. As you want to know result of each test the moment it is finished, it seems like a good idea to have a custom state for teach test that you update from each thread durint runtime.
An alterantive is to refactor your code so each test is actually a Celery task. Then you use Chord or Group primitives to build your workflow. As you want to know the state during runtime, then perhaps Group is better because then you can monitor the state of the GroupResult object...
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