how to display users specefic data when users loggin to my website? - database

i'm building an investement website for my client and i need to display personal investement chart for each client depending on there username account on there profile page.
i tried ninja chart pluggin but it display the same chart for all users and not a sprecific one depending on there user name.
Thank you all.

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is it possible to embed looker show or any visulazation on thec ustomer in-app? how can we restrict it to the customer data only?

We have some mobile app, and we want to give the customers some nice graphs & visualizations about their status.
I would like to to build some dashboard in looker and embed it on the mobile, while each user can only see his owd query result. is it possible?
if so, is looker knows to cache results, or will any user cause it to fetch the DB?

Tracking visitors who visited website with a code in url with Google Analytics

I have a React website, I want to build a system that first a code is created for example its "my-special-code-100". I want to track website visitors who entered the website from a url like https://mywebsite.com/../?code=my-special-code-100 and need to track if or if not X 'not signed in' visitor do a successful payment - a button click on specific page - also need to store an account id of the wallet, payment that happened, and need to see trackings of how many visitors of website came with "my-special-code-100"(and other codes) and how many of them made a payment and stored wallet id should be visible for that visited user.
I couldn't be sure how to and is Google Analytics correct tool for this and could you give example what can I use to achieve something like this ? Thanks

How to display data on app to different users

I have created a app to upload some data given by the user
But this is visible only to that users device.what should I do to that app,so that the data uploaded by the user is visible to all the users of that app.
Like I want to add a link to my app daily and I want that link to be seen by all the users of that app.what should I do to make this happen

How to customize Verify your identity (entering verification code) screen in Salesforce?

I have created Connected App in Salesfoce and have customized the login screen (changing logo, button css etc., using Visualforce). When user logs in for the first time or logs in from different browser or device, it prompts for 'Verify your identity' (to enter verification code).
I know we can customize the option of sending the verification code to mobile or email. But, I would like to customize the 'Verify your Identity' screen like changing the logo, button css etc. I didn't find it under Visualforce Pages.
Where is this located and how can the styles be customized?
This will be possible in Winter '20. From Release Notes:
When external users register a verification method, either a phone
number or email address, Salesforce displays a Verify page for users
to enter their verification code. You can replace the default Verify
page with your own, for example, to reflect your brand or meet your
corporate guidelines

Automatically update Instagram profile pic url on database

on my database i save the information of users who sign up with Instagram on my application.
When I want to display the profile pic of user i get the url (of the Instagram profile pic) that I've saved on my database and show it without problems.
But, when user change his profile pic on Instagram the url that I've said says: "Content not found".
It's possible to update automatically the Instagram user profil pic on my database? Any suggest?

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