stocklist | Stock data collection and analysis | Cryptocurrency library

I'm trying to send data to my Nodejs server (hosted on Firebase), from Reactjs to retrieve data from an API call.

It worked when the API url was hard coded, so the issue should be in sending the data from React to Node. I'm currently trying to have it only return one request, but once I'm able to do that, I will be trying to fetch multiple requests.

The result is to populate the stocks state with the response.

My React code looks like this:

I'm trying to update state in React.js using an API call, as I need to show some of the data to the end user. The api call works through localhost:5001 and is stored in Firebased functions.

I want to change the style of an element from a group. I tried to use state/setState but it cause changing all element's style in the group.

I'm trying to import a .csv to refill and complete many forms, rather than having to fill and create them one by one. I've followed a pretty nifty tutorial here:https://www.youtube.com/watch?v=W8pohTautj8 which has been really helpful. I then tweaked it for nested resources by this post here: https://gorails.com/forum/import-a-csv-with-associations

So far so good. I then made a few final tweaks to get where I was having issues with Authenticity tokens, NilClass errors and now I'm getting wrong number of arguments. All the stack overflow posts that also present this error that I've seen haven't been able to help.

Here's the code:

controller

I am trying to create a nav bar similar to what is shown in the image here:

the idea is that it is a nav bar where the border doesn't touch any of the other borders, this could be done through hr tags, but I cant solve how to make it vertical and fit in the Nav bar

I am trying to do a Vending Machine program in python. In the client side, I have the GUI and the transaction, payment etc.. On the server side, I have linked the file to a SQL which contain the quantity of products etc..

I did manage to make some modification when a customer buy a product. What i don't know how to do, is how can I tell to my server : "Each time you receive a transaction, check and update my DB" Can you guide me how to do this? Or can I do it another way?

To send and receive Data I use the socket module and use pickle as I send a list of list. I Have 9 product and each contain a ID , name , price and a quantity which i must update: ex:

I am using jQuery datatable with server side pagination. I have modified my REST APIs to return the necessary data as specified in datatable documentation. The problem is the data like number of pages, total rows are seen in UI, but the rows are not seen. I'm getting a message as 'No matching records found', but the page count and total rows are seen in the datatable UI. I also checked the network tab for the API response and the data is in correct format as below:

I am creating an app using flask and ionic(angular) and I am trying to return a JSON of the list currently my python code is the following

I'm trying to use yfinance to pull option chains per stock from a list of tickers and for all the available expirations per ticker.

So my code should loop over each ticker, get expiration dates, loop over each date, get options chain, then jump to next ticker and repeat.

The code below sometimes works fine, but not always, and especially as I add tickers it seems like variables get reassigned on each loop? - For example, by the time it gets to RKT the expiration dates for RKT look nothing like its actual expirations dates. It may happen on the first tickers or towards the end, or randomly, but there's always some tickers with wrong expirations, especially as the list grows.

This is my first go at it and tried to use similar examples to debug, but nothing worked or I wasn't applying them correctly.