I don't know if this is possible or not. All the research I've done has shown that it is possible with a form and text input. But anyways, Using NodeJs & Express I want to be able to click a button on my webpage, and once it's clicked, it sends a post request to my Node.JS server.
Simpler way of saying it:
When button is clicked, send info to the server.
Goal I'm trying to achieve:
When button is clicked, it sends some sort of ID/code/anything to turn on a service from my database. (I have yet to learn how db's work so I am just trying to focus on front end.)
Code I have so far:
app.post("/send", function(req, res){
var newID = req.body.ID;
res.redirect("/action")
});
<form action="/send" method="POST">
<input type="button" name="newID" placeholder="Button">
<button>send</button>
</form>
You do not need to use jQuery or AJAX.
Simply add an input of type submit inside the form tag so that the POST request defined by your form tag is submitted.
Your newID input should be of type text, this allows entering a value in the input field.
The newID value can be retrieved server side with req.body.newID (be sure to use the body-parser middleware).
<form action="/send" method="POST">
<input type="text" name="newID" placeholder="Enter your ID"/>
<input type="submit" value="Click here to submit the form"/>
</form>
For this purposes you should use $.ajax,
example:
$('button').on('click', function() {
$.ajax({
type: 'POST',
url: '/send',
data: { ID: 'someid' },
success: function(resultData) {
alert(resultData);
}
});
});
Related
I have a checkbox, essentially like a to do list. When i check the box, I want to retain the state even after i refresh the page by using mongoose. I do know of localstorage, however EJS runs on a server side. Currently I am able to post the checkbox to my express side.
IN EJS
form id="form2" action="/check" method="post"></form>
<input form="form2" type="checkbox" name="checkboxx" onChange="this.form.submit()">
IN EXPRESS
app.post("/check", function(req,res){
Item.updateOne({checked: req.body.checkboxx.checked}, function(err){
if(err){
console.log(err);
} else console.log("successfully updated db")
})
res.redirect("/")
})
My collection is "Item", the schema includes a boolean property "checked"
checkboxx is the name of the input checkbox.
Any way to update the information of the checkbox state and reload the saved states upon refreshing the page?
In my case, the user profile page is also a form for data entry. (I save the form values with mongoose on a Mongo Atlas db, so some steps are skipped here.)
In my profile.ejs page, the toggleswitch is :
<div class="custom-control custom-switch">
<input type="checkbox" class="custom-control-input" name="onOffSwitch" id="onOffSwitch" <%= params.onOffSwitch ? "checked" : "" %> >
<label class="custom-control-label" for="onOffSwitch">Activate</label>
</div>
And in my Express app the route is :
app.post(`/api/params`, isLoggedIn, (req, res) => {
const email = req.user.email;
const onOffSwitch =req.body.onOffSwitch;
});
res.redirect(`/profile`);
});
Even after a log out and re-login, the checkbox value gets releaded correctly.
I am working on a small project with checkbox and node js. I need the checked box stay on the screen after I click submit button and reset the form after clicking reset button.How can do that?
ejs code
<form method="post" action="/">
<input type="checkbox" name="preference" value="A">A
<input type="checkbox" name="preference" value="B">B
<input type="checkbox" name="preference" value="C">C
<input type="submit" value="Click to Submit">
<input type="reset" value="Erase and Restart">
</form>
node js
express.get('/', (req, res) => {
res.render('form');
});
express.post('/', (req, res) => {
console.log(req.body);
let checkedValue =req.body.preference;
let output = checkedValue==undefined?`You didn' make selection.`:`The preference iterm on menu is ${checkedValue}`;
res.render('form',{
output:output,
});
});
What's going on is that when you submit your form, the webpage is reloaded, so you lose your checked state. You can either save the values on your server and have them pre-checked using an optional checked flag in your ejs template or you can add some client side javascript to handle the form submission for you by writing and event handler for the submit event on the form.
if you expand your ejs template with a conditional checked value on your inputs, your returned page will have them pre-checked
<input type="checkbox" name="preference" <% if (submittedValue === "A") { %>checked<% } %> value="A">A
Or, here's a super simple bit of javascript that would send the values to your server
document.forms[0].addEventListener('submit', function (e) {
e.preventDefault(); // prevent the form from submitting with a page refresh
const data = { values: [] };
e.target.elements.forEach((formEl) => {
if (formEl.checked) data.values.push(formEl.value);
});
fetch('/urlToProcessYourForm', { method: 'POST', body: JSON.stringify(data) });
});
Say I have a button like
<form action="/action1" method ="post">
<button type="submit" id="button1"> Click Me </button>
</form>
I want to get a value stored in the attributes (in this case "id") and do something like this
app.post('/action1', function (req, res) {
var buttonId = req.id // this is the part I dont understand
});
how would I fill in the line
var buttonId =
Thank you
The posted data does not include the id attribute. You can set the name and/or the value attribute and those will be part of the POST request. e.g.
<button type="submit" name="button1">Click Me</button>
To get to the posted data in express look here: Express js form data
i have an Angular Storefront app set up. I have a shopping cart functionality in place and a stripe "pay with card" button etc. pretty much looks like this:
<form action="/#/order" method="POST">
<script
src="https://checkout.stripe.com/checkout.js" class="stripe-button"
data-key="{{ stripeApiKey }}"
data-billingAddress=true
data-shippingAddres=true
data-amount="{{ amount }}"
data-name="StoreFront Name"
data-description="Custom-Made Jewellery"
data-image="../images/www/logo.png"
data-locale="auto">
</script>
</form>
Evrything up to this point is working fine. I submit the form and stripe returns the token but the form goes to the server following the route localhost/order (without the # symbol) instead of angular's localhost/#/order.
Why is stripe forcing this redirect? In other words why isn't angular capturing this return call?
Anyways. Then I create a route with Laravel to capture this and dump to inspect the returned data like so:
Route::post('/order', function($request){
dd($request);
});
Yep, data captured by stripe-generated form is returned except amount is missing... I mean everything including stripeToken, buyer's details such as: Name, Email, Billing and Shipping address are returned BUT detail regarding the amount is missing.
Is this normal or I'm I missing something?
Lastly currency is still showing the default: Where can I change currency from say USD to GBP?
Thanks in advance
1/ I don't think Checkout is forcing the redirect, but I don't know enough about Angular to explain what's going on, sorry.
2/ Yes, this is normal. The amount passed to Checkout in the data-amount configuration option is used for display purposes only. The actual amount that is charged is the one you pass in the amount parameter in the charge creation request in your server-side code.
If you need the amount to be user-specified (for instance, if you're taking donations), you'll need to add the amount to the form. Here is a simple JSFiddle to illustrate this case: https://jsfiddle.net/ywain/g2ufa8xr/
3/ You can use the data-currency parameter to change the currency displayed in the Checkout form. Just like data-amount, this is for display purposes only and the actual currency used for the charge is specified by the currency parameter in the charge creation.
This is what i managed to do.
I went with the custom form approach. I had a form template to capture both customer and card inputs in billing.template.html like so:
<form method="POST" id="payment-form">
<span class="payment-errors"></span>
<div>
<label>Name</label>
<input type="text" name="name" data-stripe="name">
</div>
<div>
<label>Email</label>
<input type="text" name="email" data-stripe="address_email">
</div>
<div>
<label>Address Line 1</label>
<input type="text" name="street" data-stripe="address_line1">
</div>
<div>
<label>Postcode</label>
<input type="text" name="postcode" data-stripe="address_zip">
</div>
<div>
<label for="country">Country</label>
<select ng-include="'../templates/_partials/_countrylist.html'"
id="countries" name="country" class="form-control"
name="country" ng-model="country" id="country" size="2"
data-stripe="address_country" required></select>
</div>
<div class="form-row">
<label>
<span>Card Number</span>
<input type="text" name="cardNumber" size="20" data-stripe="number"/>
</label>
</div>
<div class="form-row">
<label>
<span>CVC</span>
<input type="text" name="cvc" size="4" data-stripe="cvc"/>
</label>
</div>
<div class="form-row">
<label>
<span>Expiration (MM/YYYY)</span>
<input type="text" name="expMonth" size="2" data-stripe="exp-month"/>
</label>
<span> / </span>
<input type="text" name="expYear" size="4" data-stripe="exp-year"/>
</div>
<button id="customButton">Pay with Card</button>
</form>
I know we are not supposed to use name attribute in those form inputs but i left them so i could use angular validation, but i remove them using jquery before submitting to server.
Now i created a controller to handle the form: BillingController.js. In there i had an "on click" handler which kick started things by getting a hold of the form and doing some preparatory work: disabling button to prevent further clicks and removing those 'dreaded' name attributes, comme ca:
$('#customButton').on('click',function(event) {
var $form = $('#payment-form');
// Disable the submit button to prevent repeated clicks
$form.find('button').prop('disabled', true);
//NOW REMOVE THOSE NAME ATTRIBUTES
$form.find('input').removeAttr('name');
// call Stripe object and send form data to get back the token.
// NOTE first argument is $form
Stripe.card.createToken($form, stripeResponseHandler);
// Prevent the form from submitting with the default action
return false;
});
Now let me quote the documentation here as this is very important to understand: https://stripe.com/docs/tutorials/forms
The important code to notice is the call to Stripe.card.createToken.
The first argument is the form element containing credit card data
entered by the user. The relevant values are fetched from their
associated inputs using the data-stripe attribute specified in the
form.
Next we create stripeResponseHandler(). Remember it was the second argument in Stripe.card.createToken($form, stripeResponseHandler); above which gets called when Stripe returns the token.
function stripeResponseHandler(status, response) {
var $form = $('#payment-form');
if (response.error) {
// Show the errors on the form
$form.find('.payment-errors').text(response.error.message);
$form.find('button').prop('disabled', false);
} else {
// response contains id and card, which contains additional card details
var token = response.id;
// Insert the token into the form so it gets submitted to the server
$form.append($('<input type="hidden" name="stripeToken" />').val(token));
// and submit
$form.get(0).submit();
}
};
This is copy and paste stuff from stripe's own documentation: https://stripe.com/docs/tutorials/forms. Now, I want to say that, this is where a lot of us were tripping over the fact that form was performing a redirect etc. - notice final line $form.get(0).submit(); . Thats what caused the auto submit, redirecting to what ever action was on form, if u had any (in my case action attribute wasn't necessary as i was doing redirects in my controller).
So i decided to remove $form.get(0).submit() and implemented my own redirect after i was done sending data to the server.
NOTE: Stripe's response will have included data from the $form - try console.log(response); to have an idea of what's being posted back.
FINALLY:
We check if there were any errors returned and if so display them. Otherwise its all good, send data to the server.
The final code looks like:
function stripeResponseHandler(status, response) {
var $form = $('payment-form');
if (response.error) {
// Show the errors on the form
$form.find('.payment-errors').text(response.error.message);
} else {
// response contains id and card, which contains additional card details
var token = response.id;
// prepare data
var data = {
stripeToken: token,
fullName: response.card.name,
street: response.card.address_line1,
postcode: response.card.address_zip,
town: response.card.address_city,
country: response.card.address_country,
last4: response.card.last4
};
// send to server
$http.post('/checkout', data).then(function(result){
// here you can redirect yourself.
window.location.href = "/#/order-complete";
});
}
};
Angular really playing well with stripe here. Check out this link also: https://gist.github.com/boucher/1750368 - learn a lot from it.
I hope it helps someone today. Happy coding!
Stripe doesn't get involved with your form aside from preventing the default action on form submit event and stopping event propagation. Once the checkout process completes, it appends the relevant data to your form and then triggers a form submit event that is handled by HTML / Javascript natively.
I recommend using something like https://github.com/tobyn/angular-stripe-checkout to get your Stripe response handled correctly by Angular.
Otherwise you could add ng-submit="handleStripeCheckout($event)" to your form instead of action="/#/form". When Stripe's checkout process completes, your $scope.handleStripeCheckout method will be run and you can analyze the new form data inside that method.
Edit: Stripe checkout.js actually triggers form.submit(). That's a pretty bad bug on their part considering that almost no browsers handle that correctly. (Form submitted using submit() from a link cannot be caught by onsubmit handler)
When entering the security words in recaptcha and clicking the Submit button, the PHP secure e-mail function is executed - even when the recaptcha verification fails and returns the error message. The basic code follows. What can I do to NOT execute the e-mail function? Thank you.
<form name="contactform" method="POST" onSubmit="return validateCaptcha()"
action="send_form_email.php">
</form>
<script type="text/javascript">
jQuery(document).ready(function (){
Recaptcha.create(" --- my key ---_",
"recpatcha_show",
{
theme: "red",
callback: Recaptcha.focus_response_field
}
);
});
</script>
<div id="recpatcha_show"></div>
<div id="captchaStatus" style="color:red;font:16px;"></div>
<br />
<input type="submit" value="Submit">
I don't know exactly how recaptcha works, but I'm guessing you'll have to prevent the form from submitting when the chaptcha characters don't match.
With jQuery its:
if(characters dont match){
event.preventDefault();
} else {
submit form
}
Also, you might want to read this:
https://developers.google.com/recaptcha/docs/php?hl=nl
You can make recaptcha completely back-end, that way you can completly validate the user imput before sending the e-mail.