CODEWITHSUNDEEP
node.jsgoogle-cloud-functionsstripe-payments
user10181542
user10181542

Reputation: 1390

Stripe API Unhandled Rejection Response Error

I am simply using the Stripe API to create a subscription in firebase cloud functions.

I am getting the errors: Unhandled rejection Error: Can't set headers after they are sent.

Here is my index.ts:

export const subscribe = functions.https.onRequest((req, res) => {
    res.header('Content-Type','application/json');
    res.header('Access-Control-Allow-Origin', '*');
    res.header('Access-Control-Allow-Headers', 'Content-Type');
    //respond to CORS preflight requests
    if (req.method == 'OPTIONS') {
        res.status(204).send('');
    }

    stripe.subscriptions.create({
        customer: req.body.sid,
        items: [
          {
            plan: "plan_123123123",
          },
        ]
      }, function(err, subscription) {
          // asynchronously called
          if (err) {
            return res.send(err)
          }
          else {
              return res.send(subscription)
          }
        }
      );
});

Upvotes: 1

Views: 77

Answers (1)

Sid Vishnoi
Sid Vishnoi

Reputation: 1318

Instead of 

if (req.method == 'OPTIONS') {
    res.status(204).send('');
}

try:

if (req.method == 'OPTIONS') {
    return res.status(204).send('');
}

otherwise, you'll be calling res.send() twice in case of OPTIONS (pre-flight) request, causing the error.

Upvotes: 1

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