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Simple PayPal Payment Integration needed - start on project: asap -- 2

Only apply with answers for my questions in the end of proposal.

- Description:

I need help for the paypal payment integration. Important to know: the paypal integration must be finished on Monday 14. december 2020. I will hire a freelancer to help me here today latest at 7 pm (kiev time). He should be available for the a call to clarify everything and we can do the needed changes together (so that i understand it better and arising questions can be solved quickly)

Use case: Users can buy lights for the digital christmas tree ([login to view URL]).

User journey:

In order to buy lights, the user has to click at "Get a light" button (right site of the website). He then specifies how many lights he needs, selects how much he wants to pay per light. Then he provides the invoice data (depending on entity, different invoice data is needed) so that he gets an invoice for these lights.

Required functionality:

When the user clicks at the paypal button, the checkout function in [login to view URL] ([login to view URL]) is called. In here the paypal payment functionality should be integrated. On successful payment, our rest api ([login to view URL]) returns an array of light credentials and the user is shown a pop up with the personalized light urls (constructed from the returned data) for the lights he bought.

I have already created a small [login to view URL] in order to test it with my sandbox clientid: [login to view URL] -> when I do a payment here, I see it on the admin dashboard for my app.

IMPORTANT: I need to understand the flow and best practice. For this I would like to have a call to clarify:

- How can i guarantee, that really only the users that payed, get light credentials? -> pls explain here the best practice flow

- How can I guarantee that the user only gets the exact number of lights he has ordered?

When it is only client side transaction (using javascript) I don't have really controll about it or? As everyone could manually call the orders rest api and get new lights without paying

- Questions:

1. What is your recommended flow (between client js, paypal payment, delivery of lights) that is as simple as possible but save and correct

2. Is it possible to save invoice data together with number of lights and price in paypal server dashboard? Or is this normally saved on the owners server restapi?

3. How long do you think you need for this job to have a successful integration? So completely finished?

4. How can be guarantee, that really only the users that payed, get light credentials and for only the lights he bought? Solution should be as simple as possible and quickly to be integrated.

Навыки: PHP, JavaScript, PayPal API, Payment Gateway Integration

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О работодателе:
( 8 отзыв(-а, -ов) ) Skvyra, Ukraine

ID проекта: #28545398

10 фрилансеров(-а) готовы выполнить эту работу в среднем за $135

(371 отзывов(-а))
7.0
shraboniadhikary

Hello there, I have reviewed your project requirements and understood your requirements as mentioned above. I have 5+ years of experience in this field. Skill: PHP FRAMEWORKS,HTML,CSS,WORDPRESS,WOOCOMMERCE,ECOMMERCEA Больше

$140 NZD за 7 дней(-я)
(63 отзывов(-а))
5.6
letsstartcoding

let me answer all your question one by one for first question - client will make the payment and after payment we will redirect them to sucess page with the link of lights for second we can only save data on our ser Больше

$200 NZD за 2 дней(-я)
(51 отзывов(-а))
5.9
kuldeepak05

Hello, I am very interested to work on your project. I have extensive expertise in Payment Gateway Integration like Recurring Payments, Credit Card Processing, Bitcoin, Braintree, Stripe, PayPal, PayPal Pro, SafePay, Больше

$300 NZD за 7 дней(-я)
(37 отзывов(-а))
5.8
mannaranjit756

Sir I have 7+ years Experience in Web-Design and Web-Development.I building different types of Web Site. I have read your project details carefully , understand requirement . Please reply me . Some of my projec Больше

$140 NZD за 7 дней(-я)
(3 отзывов(-а))
3.6
kotechdev

Hi, I can add the paypal integration to your website within one day, the code will validate everything including, price quantity and also check if it's the correct currency, I have done a similar job in the past as you Больше

$70 NZD за 1 день
(7 отзывов(-а))
3.5
ItorixSoft

Hello Sir / Madam We have hands on experience with web development and design of 3+ years. Looking forward for great opportunities here. We hope to deliver the best to you and for us,too. we can discuss more abou Больше

$41 NZD за 1 день
(1 отзыв)
0.0
boghanichirag

I have 10+ years of experience. We are a team of Experienced Developers and DevOps. We like building dynamic responsive web applications for the best user experience at the best price. Our Skills: - PHP (Laravel, Codei Больше

$30 NZD за 1 день
(0 отзывов(-а))
0.0
mraary

Hey, I would easily handle your job and finish the work in less than a week, With daily updates and progress reports. Check my profile for further my experience and portfolio. I'm attaching all my product videos below. Больше

$140 NZD за 7 дней(-я)
(0 отзывов(-а))
0.0
Amanjit54

Respected Client. I am Amanjeet S. I have read your project description, and ready to work for your project immediately. I have all the relevant skills that you demands for and can complete your project in a very time Больше

$40 NZD за 1 день
(0 отзывов(-а))
0.0