danielzzz
Using node-ping in REST API (ExpressJS)
Hi,
I get an error if use this package in the ExpressJS route.
but I see result on console console.log(pingResult);
of course, error is not related with ping package, but I need help ...
router.get('/camera/ping', asyncHandler(async (req, res) => {
try {
const ip="10.x.x.x";
let pingResult;
try {
pingResult = await ping.promise.probe(ip, {
timeout: 5,
min_reply: 4
});
console.log(pingResult);
} catch (error) {
pingResult = error;
};
res.json({pingResult});
Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
code works without ping
router.get('/camera/ping', asyncHandler(async (req, res) => {
try {
let pingResult;
// try {
// pingResult = await ping.promise.probe(ip, {
// timeout: 5,
// min_reply: 4
// });
// } catch (error) {
// pingResult = error;
// };
res.json({pingResult});
Try return res.json.
I am not really familiar with latest JS async syntax. But, according to the error message, I guess it is something about you have not chain the async code properly. Try to debug in this direction
On Thu, 28 Jul 2022, 11:16 Bauyrzhan Yessetov, @.***> wrote:
Hi, I get an error if use this package in the ExpressJS route. but I see result on console console.log(pingResult); of course, error is not related with ping package, but I need help ...
router.get('/camera/ping', asyncHandler(async (req, res) => { try { const ip="10.x.x.x"; let pingResult; try { pingResult = await ping.promise.probe(ip, { timeout: 5, min_reply: 4 }); console.log(pingResult); } catch (error) { pingResult = error; }; res.json({pingResult});
Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
code works without ping
router.get('/camera/ping', asyncHandler(async (req, res) => { try { const ip="10.x.x.x"; res.json({ip:ip});
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return res.json not helps me
I'm using asyncHandler, I think there is no problem with async ...
Try to log whether there are any errors on your exception
On Mon, 8 Aug 2022, 15:43 Bauyrzhan Yessetov, @.***> wrote:
return res.json not helps me
I'm using asyncHandler, I think there is no problem with async ...
— Reply to this email directly, view it on GitHub https://github.com/danielzzz/node-ping/issues/153#issuecomment-1208223192, or unsubscribe https://github.com/notifications/unsubscribe-auth/AA5YBI6ZMTXHTRQ7UD63XHLVYEMKRANCNFSM544WVGNA . You are receiving this because you commented.Message ID: @.***>