getaddrinfo ENOTFOUND api.sandbox.braintreegateway.com - after idle time.

[shreyas14oct]

Okay, here is the following code snippet i am using (in Nodejs envoirment) on debian:

const gateway = new braintree.BraintreeGateway({
environment: braintree.Environment.Sandbox,
merchantId: process.env.BRAINTREE_MERCHANTID,
publicKey: process.env.BRAINTREE_PUBLICKEY,
privateKey: process.env.BRAINTREE_PRIVATEKEY
});

app.get("/find-customer", (req, res) => {
console.log("Function: find-customer");
const start = process.hrtime.bigint(); // Start timer
console.log("/find-customer", req.query.customerId);

if (req.query.customerId) {
    gateway.customer.find(req.query.customerId, function (err, customer) {
        console.log(err, "/found-customer", customer?.id);
        if (err) {
            res.json({
                status: "error",
                errors: err
            }).end();
        } else {
            res.json({
                status: "success",
                customer: customer
            }).end();
        }
        const end = process.hrtime.bigint(); // End timer
        console.log(`Processing time: ${(end - start) / BigInt(1000000)} ms`);
    });
} else {
    res.json({
        status: "error",
        errors: "Invalid Request"
    }).end();
    const end = process.hrtime.bigint(); // End timer
    console.log(`Processing time: ${(end - start) / BigInt(1000000)} ms`);
}

});

after some idle time , iam getting below error:

so i am getting below error:

Processing time: 1546 ms
/find-customer 91536922090
Error [unexpectedError]: Unexpected request error: Error: getaddrinfo ENOTFOUND api.sandbox.braintreegateway.com
at Object.UnexpectedError (/var/www/clients/client1/web1/web/node-service/node_modules/braintree/lib/braintree/exceptions.js:7:15)
at ClientRequest. (/var/www/clients/client1/web1/web/node-service/node_modules/braintree/lib/braintree/http.js:202:32)
at ClientRequest.emit (node:events:514:28)
at TLSSocket.socketErrorListener (node:_http_client:501:9)
at TLSSocket.emit (node:events:514:28)
at emitErrorNT (node:internal/streams/destroy:151:8)
at emitErrorCloseNT (node:internal/streams/destroy:116:3)
at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
type: 'unexpectedError'
} /found-customer undefined
Processing time: 3228 ms

but after repeated calls it succeeds.

some investigation as follows:

user@server1:~$ nslookup api.sandbox.braintreegateway.com
;; Got SERVFAIL reply from 127.0.0.1, trying next server
Server: ::1
Address: ::1#53

** server can't find api.sandbox.braintreegateway.com: SERVFAIL

user@server1:~$ dig api.sandbox.braintreegateway.com

; <<>> DiG 9.16.50-Debian <<>> api.sandbox.braintreegateway.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 29347
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: c03e9bf9857b9a6f0100000067fe003f1ae4cf60a5c4f564 (good)
;; QUESTION SECTION:
;api.sandbox.braintreegateway.com. IN A

;; Query time: 3200 msec
;; SERVER: ::1#53(::1)
;; WHEN: Tue Apr 15 12:14:15 IST 2025
;; MSG SIZE rcvd: 89

and the consecutive hit got:

user@server1:~$ dig api.sandbox.braintreegateway.com

; <<>> DiG 9.18.30-0ubuntu0.22.04.2-Ubuntu <<>> api.sandbox.braintreegateway.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 53921
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: 18b50a8aeaf4ad0101000000680dac3197be9f982943a37d (good)
;; QUESTION SECTION:
;api.sandbox.braintreegateway.com. IN A

;; ANSWER SECTION:
api.sandbox.braintreegateway.com. 60 IN CNAME gateway-api.sandbox.braintreegateway.com.
gateway-api.sandbox.braintreegateway.com. 60 IN CNAME cdn-a.sandbox.braintree-api.com.
cdn-a.sandbox.braintree-api.com. 300 IN A 159.242.242.129
cdn-a.sandbox.braintree-api.com. 300 IN A 159.242.242.128

;; Query time: 90 msec
;; SERVER: 127.0.0.1#53(127.0.0.1) (UDP)
;; WHEN: Sat Apr 26 21:01:53 PDT 2025
;; MSG SIZE rcvd: 192

Please help me to figure out issue here and resolve.

[klaguerrePay]

@shreyas14oct Because this works intermittently works it leads me to believe that this is a network issue. In which case there's not much we could debug because this isn't an issue with the SDK's. My recommendation would be to implement a retry feature with a delay to see if that provides a more stable connection.