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Triggering a re-fetch when coming back from a dialog modal react

I have an add contact Modal and an add company Modal. When the user wants to add a contact they click the corresponding button which opens said Modal. Typically, they would fill out the information needed on this form. One of them being a Company they belong to. If the company does not exist in the system, they then have an add company button which when pressed opens another Modal on top of the contact one.
Again, the user enters the information for the company and once done, would tap save. This would then trigger a fetch which POSTS the information to my Spring Boot backend which in turn sends back a JSON object version of the company which has come from the database.
I then check it and if it comes back valid, it sets out an alert telling the user it was successful and closes the company Modal.
At this point, the user should be able to type the company name into the contact company autocomplete and find the company they've added.
However, at this point, that is not happening. The re-fetch is not triggered at all despite me thinking that when the Contact Modal is re-rendered it would trigger the re-fetch.
I've tried clearing the contactList within the return() function but this causes a Too many re-renders error.
My question is, how would I trigger a re-fetch from within the contact list once it has returned from the company modal?

My initial thought would be to not have more than one modal open at the same time. Feel free to disagree but that doesn't seem like that's how modals are intended to work. As an alternative, you could have an "Other" option and have a set of text fields conditionally appear. Upon completing the form, have a boolean variable (or however you want to do it) be passed into your backend that kicks of the business logic that creates a new company before adding the contact. Or add all that logic to your add contact SQL procedure to avoid making (a risky) two db calls for one action.
Refetch Problem
Without looking at your code, it's possible that if you're using the useEffect hook, you aren't passing any dependencies to "listen" for certain variables that have been changed. After the data comes back from that POST call, you should add code that updates the array populating the select company dropdown field (eg .then() callback)--assuming it is a dropdown and an array. This change in state should re-render the component but, for a better user experience, you may want to do it in a way that it doesn't blank out the rest of your fields.

You are probably using useEffect which makes the loop.
Try to connect refetch with an event - click or submit, within try/catch - via 2 way binding eventHandler prop that calls praticular function.
Also you can change the state, and refectch the results after the new loading of the page. Hope it helps, even as a hint!

Reload partial and retain form values

When purchasing a course, the user can enter 1 or more students to register for the course. By default there is only one entry but the user can use a dropdown to select more and then the form will update to show more.
I am accomplishing this by triggering an event when the user changes the dropdown value that uses ajax to call an action which returns a partial with the appropriate number of entries and then I just replace the existing div with the new one.
My question is whether there is a way to implement this so that it's kind of like "refreshing" the page where the form remembers and automatically refills in he values the user already entered just like if you were to refresh the entire webpage. Is there a way to do this, or will I need to pass in the existing values into the action in my ajax call and have the partial set them?
A secondary question I just thought of (and perhaps this should be in another post but I will go ahead and put it here for now) is whether I should be concerned about any weird behavior with validation when doing it this way? (I'm using stock, built in validation with annotations).

How to stop triggering introjs after first walkthrough?

I'm using introjs.
But when a user ends the intro, then refreshes the page, introjs starts up again.
Is there a way to only show a walkthrough once per user?
For example I have it where when a user first signs into my website - introjs will popup. I only want it to pop up for that initial welcome.
Potential Solutions
Maybe there is a way to trigger introjs via the create action like one would with a flash message?
I could replicate all my header, sidebar, and challenges section code into pages/tutorial.html.erb and make a route www.websitename.com/tutorial, but then that would be a lot of code to duplicate and then whenever I change something in the site I would have to change it in tutorial too.
Is there a way to adjust this javascript method in application.js to trigger only once per user $(function () {
introJs().start() })?
I just use data-intro="" for each step of the walkthrough.

You want your application/webpage to remember that the user has already gone through your tutorial.
There are a few ways you can do that. For a start, you can use cookies or localStorage
The gist is that after the user finishes, or otherwise exits your tutorial, you can store a descriptive value to the user's client, by using one of the above methods, and on page load you should first check if this value exists and act accordingly.
EDIT: As mentioned in comments, you will need a server side approach as well.

Redirect to link via workflow button click

I have added a button via workflow and I need to redirect it to another location/link(say .. www.google.com link). How can I achive this, Since button's id cannot be changed in workflow, I could not append any Javascript function in that button . Also Action in workflow does not have an option to set link to Workflow buttons,.
Does this mean Workflow buttons can only be made to move to another State?
Note: I know to add buttons via user script but for this particular scenario I want to achive this only with workflow button.

The only way to handle button clicks in workflows is to create a transition to another state. Within the transition, there is a drop-down field called Button that lets you choose which button would fire the transition.
You can only cause a workflow to navigate to either a record using the Go To Record action, or a task link using the Go To Page action. But I'm not sure if you could navigate to a link using workflows as you've mentioned above.

Why not add a button and hijack it via a client script? Just add a call on the form of client side to find the button element on the DOM and change the properties. This can be easily done with jQuery, which comes by default on NetSuite.

Change element value on external website

I have such a problem - I want to change value of an element on some external website.
Namely: I have webcam http interface which is password protected and there is a page with motion detection checkbox and "Apply" button (form submit). I want to create simple program with some sort of delayed toggling of motion detection (so I can launch this program and have some time to leave the building before motion detection starts). So I want to change checkbox state and write this change to system. I tried something like this, but that doesn't work:
jQuery.get("http://admin:password#192.168.0.1:12345/motion-page.asp",
function(data){
$('input[name="checkbox1"]').prop('checked', false);
// and there "simulate" clicking on Apply button - submit the form -- don't know how ...
}
);
Can anybody help me with this, please?

I would backtrack from the page that shows when you submit the camera form. See if the form itself is submitting the "turn camera on" variable as GET or POST. If you already know this, then all you would have to do is access the same URL as the form from the camera (assuming it's HTTP accessible on a network like this) and submit that same set of variables.
If you don't want to open a browser to do this, you could write yourself a custom application that submits it for you, but either way you have to open something to make the submission, as a script has to wait [X] amount of time before making the request. The fastest way will be through a browser.
I am not sure you need jquery for this (I never use jquery hardly at all). What I would do on the scripting side, since merely accessing this script means you want to activate the timer most likely, would be to create a timer object in javascript, and then make a single function that either accesses the URL of the camera form submission with the GET string parameters (that's easiest if it's doable via GET, because you wont have to build a form), or, if it's POST, have the function build a form and submit the form via POST to the same URL.
Google how to create a timer in javascript, and google how to automatically submit a form. Doing the code for you would be a waste of my time if you can figure it out on your own. If not, come back and we'll see what we can do :)
Good luck.

Why not after hitting the submit button, or after checking the box, have javascript actually run a timer? Look into the timer functions in js or jquery if that's more your thing. Not sure if you need it written to disk or whatever... since you're not giving much info, but whatever data you're wanting recorded could be captured when the box is checked and can be submitted along with the form whenever the timer runs out.
Submitting a form in jquery is simple:
http://api.jquery.com/submit/
:)