How to solve a CORS issue with paypal-rest-sdk on react/express local development setup?
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1
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I am trying to set up the paypal-rest-sdk in an express server with a react front end, am getting a CORS error. The react server is using a proxy.
I have tried the npm cor() package (couldn't get it to work) and two chrome extension. They stop the error message but nothing else happens either. I don't understand how to use the proper headers...but it seems like one of the other methods should work.
The desired result is to be sent to a paypal pay page.
This code works:
const express = require("express");
const app = express();
app.get("/", (req, res) => {});
app.post("/pay", (req, res) => {
console.log("you made a successful post request"
});
const port = 5000;
app.listen(port, () => `Server running on port ${port}`);
this code works, it logs the payment json object:
const express = require("express");
const paypal = require("paypal-rest-sdk");
const app = express();
app.get("/", (req, res) => {});
paypal.configure({
mode: "sandbox",
client_id:
"___clientID___",
client_secret:
"___clientSECRET___"
});
app.post("/pay", (req, res) => {
var create_payment_json = {
intent: "sale",
payer: {
payment_method: "paypal"
},
redirect_urls: {
return_url: "http://localhost:3000/success",
cancel_url: "http://localhost:3000/cancel"
},
transactions: [
{
item_list: {
items: [
{
name: "item",
sku: "item",
price: "1.00",
currency: "USD",
quantity: 1
}
]
},
amount: {
currency: "USD",
total: "1.00"
},
description: "This is the payment description."
}
]
};
paypal.payment.create(create_payment_json, function(error, payment) {
if (error) {
throw error;
} else {
console.log(payment)
}
}
}
});
});
const port = 5000;
app.listen(port, () => `Server running on port ${port}`);
But this code breaks it with a CORS error:
paypal.payment.create(create_payment_json, function(error, payment) {
if (error) {
throw error;
} else {
for (let i = 0; i < payment.links.length; i++) {
if (payment.links[i].rel === "approval_url") {
res.redirect(payment.links[i].href);
}
}
}
});
I assume that the res.redirect is the problem.
EDIT
I recreated the same express server in a separate project folder, but instead of trying to use it with a React proxy, I created a very simple HTML form to hit '/pay'
This worked, which tells me that the problem is in having react run on localhost:3000 with a proxy to a server that is listening on localhost:5000
SO, the problem is not with PayPal, I can rule that out.
My next step is to learn more about integrating React apps into express...
Any other ideas would be very appreciated!
Thanks!!!
express cors paypal-rest-sdk
asked Nov 21 at 9:20
Hanley Soilsmith
998
add a comment |
up vote
1
down vote
favorite
I am trying to set up the paypal-rest-sdk in an express server with a react front end, am getting a CORS error. The react server is using a proxy.
I have tried the npm cor() package (couldn't get it to work) and two chrome extension. They stop the error message but nothing else happens either. I don't understand how to use the proper headers...but it seems like one of the other methods should work.
The desired result is to be sent to a paypal pay page.
This code works:
const express = require("express");
const app = express();
app.get("/", (req, res) => {});
app.post("/pay", (req, res) => {
console.log("you made a successful post request"
});
const port = 5000;
app.listen(port, () => `Server running on port ${port}`);
this code works, it logs the payment json object:
const express = require("express");
const paypal = require("paypal-rest-sdk");
const app = express();
app.get("/", (req, res) => {});
paypal.configure({
mode: "sandbox",
client_id:
"___clientID___",
client_secret:
"___clientSECRET___"
});
app.post("/pay", (req, res) => {
var create_payment_json = {
intent: "sale",
payer: {
payment_method: "paypal"
},
redirect_urls: {
return_url: "http://localhost:3000/success",
cancel_url: "http://localhost:3000/cancel"
},
transactions: [
{
item_list: {
items: [
{
name: "item",
sku: "item",
price: "1.00",
currency: "USD",
quantity: 1
}
]
},
amount: {
currency: "USD",
total: "1.00"
},
description: "This is the payment description."
}
]
};
paypal.payment.create(create_payment_json, function(error, payment) {
if (error) {
throw error;
} else {
console.log(payment)
}
}
}
});
});
const port = 5000;
app.listen(port, () => `Server running on port ${port}`);
But this code breaks it with a CORS error:
paypal.payment.create(create_payment_json, function(error, payment) {
if (error) {
throw error;
} else {
for (let i = 0; i < payment.links.length; i++) {
if (payment.links[i].rel === "approval_url") {
res.redirect(payment.links[i].href);
}
}
}
});
I assume that the res.redirect is the problem.
EDIT
I recreated the same express server in a separate project folder, but instead of trying to use it with a React proxy, I created a very simple HTML form to hit '/pay'
This worked, which tells me that the problem is in having react run on localhost:3000 with a proxy to a server that is listening on localhost:5000
SO, the problem is not with PayPal, I can rule that out.
My next step is to learn more about integrating React apps into express...
Any other ideas would be very appreciated!
Thanks!!!
express cors paypal-rest-sdk
asked Nov 21 at 9:20
Hanley Soilsmith
998
What’s the exact CORS error message the browser is logging? What’s the URL of the endpoint?
– sideshowbarker
Nov 21 at 10:48
The docs at developer.paypal.com/docs/api/rest-sdks give no indication that PayPal API endpoints are CORS-enabled nor that any of the REST APIs are meant to be used from frontend JavaScript running in a browser. Instead the docs say, “PayPal provides REST server SDKs for these languages: Java, .NET, Node, PHP, Python, Ruby”.
– sideshowbarker
Nov 21 at 10:53
Thank you for your comment! I believe that the PayPal endpoint is referenced by for (let i = 0; i < payment.links.length; i++) { if (payment.links[i].rel === "approval_url") { res.redirect(payment.links[i].href); In my sandbox, the href is sandbox.paypal.com/cgi-bin/…... I recreated the code in a more simple fashion, omitting the react side of things, and used a simple HTML form, it worked. This tells me that the problem is likely from the react proxy. I will add this to my original question.
– Hanley Soilsmith
Nov 21 at 18:45
IE, this tells me that the problem is not with PayPal. I think you already know this, but I guess the problem is that I don't completely understand all of this stuff and am definitely making some noob mistakes. Thanks for your help :)
– Hanley Soilsmith
Nov 21 at 18:53
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I am trying to set up the paypal-rest-sdk in an express server with a react front end, am getting a CORS error. The react server is using a proxy.
I have tried the npm cor() package (couldn't get it to work) and two chrome extension. They stop the error message but nothing else happens either. I don't understand how to use the proper headers...but it seems like one of the other methods should work.
The desired result is to be sent to a paypal pay page.
This code works:
const express = require("express");
const app = express();
app.get("/", (req, res) => {});
app.post("/pay", (req, res) => {
console.log("you made a successful post request"
});
const port = 5000;
app.listen(port, () => `Server running on port ${port}`);
this code works, it logs the payment json object:
const express = require("express");
const paypal = require("paypal-rest-sdk");
const app = express();
app.get("/", (req, res) => {});
paypal.configure({
mode: "sandbox",
client_id:
"___clientID___",
client_secret:
"___clientSECRET___"
});
app.post("/pay", (req, res) => {
var create_payment_json = {
intent: "sale",
payer: {
payment_method: "paypal"
},
redirect_urls: {
return_url: "http://localhost:3000/success",
cancel_url: "http://localhost:3000/cancel"
},
transactions: [
{
item_list: {
items: [
{
name: "item",
sku: "item",
price: "1.00",
currency: "USD",
quantity: 1
}
]
},
amount: {
currency: "USD",
total: "1.00"
},
description: "This is the payment description."
}
]
};
paypal.payment.create(create_payment_json, function(error, payment) {
if (error) {
throw error;
} else {
console.log(payment)
}
}
}
});
});
const port = 5000;
app.listen(port, () => `Server running on port ${port}`);
But this code breaks it with a CORS error:
paypal.payment.create(create_payment_json, function(error, payment) {
if (error) {
throw error;
} else {
for (let i = 0; i < payment.links.length; i++) {
if (payment.links[i].rel === "approval_url") {
res.redirect(payment.links[i].href);
}
}
}
});
I assume that the res.redirect is the problem.
EDIT
I recreated the same express server in a separate project folder, but instead of trying to use it with a React proxy, I created a very simple HTML form to hit '/pay'
This worked, which tells me that the problem is in having react run on localhost:3000 with a proxy to a server that is listening on localhost:5000
SO, the problem is not with PayPal, I can rule that out.
My next step is to learn more about integrating React apps into express...
Any other ideas would be very appreciated!
Thanks!!!
express cors paypal-rest-sdk
asked Nov 21 at 9:20
Hanley Soilsmith
998
I am trying to set up the paypal-rest-sdk in an express server with a react front end, am getting a CORS error. The react server is using a proxy.
I have tried the npm cor() package (couldn't get it to work) and two chrome extension. They stop the error message but nothing else happens either. I don't understand how to use the proper headers...but it seems like one of the other methods should work.
The desired result is to be sent to a paypal pay page.
This code works:
const express = require("express");
const app = express();
app.get("/", (req, res) => {});
app.post("/pay", (req, res) => {
console.log("you made a successful post request"
});
const port = 5000;
app.listen(port, () => `Server running on port ${port}`);
this code works, it logs the payment json object:
const express = require("express");
const paypal = require("paypal-rest-sdk");
const app = express();
app.get("/", (req, res) => {});
paypal.configure({
mode: "sandbox",
client_id:
"___clientID___",
client_secret:
"___clientSECRET___"
});
app.post("/pay", (req, res) => {
var create_payment_json = {
intent: "sale",
payer: {
payment_method: "paypal"
},
redirect_urls: {
return_url: "http://localhost:3000/success",
cancel_url: "http://localhost:3000/cancel"
},
transactions: [
{
item_list: {
items: [
{
name: "item",
sku: "item",
price: "1.00",
currency: "USD",
quantity: 1
}
]
},
amount: {
currency: "USD",
total: "1.00"
},
description: "This is the payment description."
}
]
};
paypal.payment.create(create_payment_json, function(error, payment) {
if (error) {
throw error;
} else {
console.log(payment)
}
}
}
});
});
const port = 5000;
app.listen(port, () => `Server running on port ${port}`);
But this code breaks it with a CORS error:
paypal.payment.create(create_payment_json, function(error, payment) {
if (error) {
throw error;
} else {
for (let i = 0; i < payment.links.length; i++) {
if (payment.links[i].rel === "approval_url") {
res.redirect(payment.links[i].href);
}
}
}
});
I assume that the res.redirect is the problem.
EDIT
I recreated the same express server in a separate project folder, but instead of trying to use it with a React proxy, I created a very simple HTML form to hit '/pay'
This worked, which tells me that the problem is in having react run on localhost:3000 with a proxy to a server that is listening on localhost:5000
SO, the problem is not with PayPal, I can rule that out.
My next step is to learn more about integrating React apps into express...
Any other ideas would be very appreciated!
Thanks!!!
express cors paypal-rest-sdk
express cors paypal-rest-sdk
asked Nov 21 at 9:20
Hanley Soilsmith
998
asked Nov 21 at 9:20
Hanley Soilsmith
998
edited Nov 21 at 18:52
asked Nov 21 at 9:20
Hanley Soilsmith
998
asked Nov 21 at 9:20
Hanley Soilsmith
998
asked Nov 21 at 9:20
Hanley Soilsmith
998
998
What’s the exact CORS error message the browser is logging? What’s the URL of the endpoint?
– sideshowbarker
Nov 21 at 10:48
The docs at developer.paypal.com/docs/api/rest-sdks give no indication that PayPal API endpoints are CORS-enabled nor that any of the REST APIs are meant to be used from frontend JavaScript running in a browser. Instead the docs say, “PayPal provides REST server SDKs for these languages: Java, .NET, Node, PHP, Python, Ruby”.
– sideshowbarker
Nov 21 at 10:53
Thank you for your comment! I believe that the PayPal endpoint is referenced by for (let i = 0; i < payment.links.length; i++) { if (payment.links[i].rel === "approval_url") { res.redirect(payment.links[i].href); In my sandbox, the href is sandbox.paypal.com/cgi-bin/…... I recreated the code in a more simple fashion, omitting the react side of things, and used a simple HTML form, it worked. This tells me that the problem is likely from the react proxy. I will add this to my original question.
– Hanley Soilsmith
Nov 21 at 18:45
IE, this tells me that the problem is not with PayPal. I think you already know this, but I guess the problem is that I don't completely understand all of this stuff and am definitely making some noob mistakes. Thanks for your help :)
– Hanley Soilsmith
Nov 21 at 18:53
add a comment |
What’s the exact CORS error message the browser is logging? What’s the URL of the endpoint?
– sideshowbarker
Nov 21 at 10:48
The docs at developer.paypal.com/docs/api/rest-sdks give no indication that PayPal API endpoints are CORS-enabled nor that any of the REST APIs are meant to be used from frontend JavaScript running in a browser. Instead the docs say, “PayPal provides REST server SDKs for these languages: Java, .NET, Node, PHP, Python, Ruby”.
– sideshowbarker
Nov 21 at 10:53
Thank you for your comment! I believe that the PayPal endpoint is referenced by for (let i = 0; i < payment.links.length; i++) { if (payment.links[i].rel === "approval_url") { res.redirect(payment.links[i].href); In my sandbox, the href is sandbox.paypal.com/cgi-bin/…... I recreated the code in a more simple fashion, omitting the react side of things, and used a simple HTML form, it worked. This tells me that the problem is likely from the react proxy. I will add this to my original question.
– Hanley Soilsmith
Nov 21 at 18:45
IE, this tells me that the problem is not with PayPal. I think you already know this, but I guess the problem is that I don't completely understand all of this stuff and am definitely making some noob mistakes. Thanks for your help :)
– Hanley Soilsmith
Nov 21 at 18:53
What’s the exact CORS error message the browser is logging? What’s the URL of the endpoint?
– sideshowbarker
Nov 21 at 10:48
What’s the exact CORS error message the browser is logging? What’s the URL of the endpoint?
– sideshowbarker
Nov 21 at 10:48
The docs at developer.paypal.com/docs/api/rest-sdks give no indication that PayPal API endpoints are CORS-enabled nor that any of the REST APIs are meant to be used from frontend JavaScript running in a browser. Instead the docs say, “PayPal provides REST server SDKs for these languages: Java, .NET, Node, PHP, Python, Ruby”.
– sideshowbarker
Nov 21 at 10:53
The docs at developer.paypal.com/docs/api/rest-sdks give no indication that PayPal API endpoints are CORS-enabled nor that any of the REST APIs are meant to be used from frontend JavaScript running in a browser. Instead the docs say, “PayPal provides REST server SDKs for these languages: Java, .NET, Node, PHP, Python, Ruby”.
– sideshowbarker
Nov 21 at 10:53
Thank you for your comment! I believe that the PayPal endpoint is referenced by for (let i = 0; i < payment.links.length; i++) { if (payment.links[i].rel === "approval_url") { res.redirect(payment.links[i].href); In my sandbox, the href is sandbox.paypal.com/cgi-bin/…... I recreated the code in a more simple fashion, omitting the react side of things, and used a simple HTML form, it worked. This tells me that the problem is likely from the react proxy. I will add this to my original question.
– Hanley Soilsmith
Nov 21 at 18:45
Thank you for your comment! I believe that the PayPal endpoint is referenced by for (let i = 0; i < payment.links.length; i++) { if (payment.links[i].rel === "approval_url") { res.redirect(payment.links[i].href); In my sandbox, the href is sandbox.paypal.com/cgi-bin/…... I recreated the code in a more simple fashion, omitting the react side of things, and used a simple HTML form, it worked. This tells me that the problem is likely from the react proxy. I will add this to my original question.
– Hanley Soilsmith
Nov 21 at 18:45
IE, this tells me that the problem is not with PayPal. I think you already know this, but I guess the problem is that I don't completely understand all of this stuff and am definitely making some noob mistakes. Thanks for your help :)
– Hanley Soilsmith
Nov 21 at 18:53
IE, this tells me that the problem is not with PayPal. I think you already know this, but I guess the problem is that I don't completely understand all of this stuff and am definitely making some noob mistakes. Thanks for your help :)
– Hanley Soilsmith
Nov 21 at 18:53
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What’s the exact CORS error message the browser is logging? What’s the URL of the endpoint?
– sideshowbarker
Nov 21 at 10:48
The docs at developer.paypal.com/docs/api/rest-sdks give no indication that PayPal API endpoints are CORS-enabled nor that any of the REST APIs are meant to be used from frontend JavaScript running in a browser. Instead the docs say, “PayPal provides REST server SDKs for these languages: Java, .NET, Node, PHP, Python, Ruby”.
– sideshowbarker
Nov 21 at 10:53
Thank you for your comment! I believe that the PayPal endpoint is referenced by for (let i = 0; i < payment.links.length; i++) { if (payment.links[i].rel === "approval_url") { res.redirect(payment.links[i].href); In my sandbox, the href is sandbox.paypal.com/cgi-bin/…... I recreated the code in a more simple fashion, omitting the react side of things, and used a simple HTML form, it worked. This tells me that the problem is likely from the react proxy. I will add this to my original question.
– Hanley Soilsmith
Nov 21 at 18:45
IE, this tells me that the problem is not with PayPal. I think you already know this, but I guess the problem is that I don't completely understand all of this stuff and am definitely making some noob mistakes. Thanks for your help :)
– Hanley Soilsmith
Nov 21 at 18:53