I'm trying to find tours within a specific distance.here is my code
exports.getTourWithin = catchAsync(async (req, res, next) => {
const { distance, latlng, unit } = req.params;
const [lat, lng] = latlng.split(',');
if (!lat || !lng) {
next(
new AppError(
`please provide latitude amd longitude in the form of lat,lng`,
400
)
);
}
const radius = unit === 'mi' ? distance / 3963.2 : distance / 6378.1;
const tours = Tour.find({
$geoWithin: { $centerSphere: [[lng, lat], radius] }
});
res.status(200).json({
status: 'success',
data: {
data: tours
}
});
});
but i'm getting this error in postman:
"message": "Converting circular structure to JSON\n --> starting at object with constructor 'NativeTopology'\n | property 's' -> object with constructor 'Object'\n | property 'sessionPool' -> object with constructor 'ServerSessionPool'\n --- property 'topology' closes the circle",
"stack": "TypeError: Converting circular structure to JSON\n --> starting at object with constructor 'NativeTopology'\n | property 's' -> object with constructor 'Object'\n | property 'sessionPool' -> object with constructor 'ServerSessionPool'\n --- property 'topology' closes the circle\n at JSON.stringify (<anonymous>)\n at stringify (D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\response.js:1119:12)\n at ServerResponse.json (D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\response.js:260:14)\n at D:\\Node-Jonas\\Node-Rest-Api\\controllers\\tourControllers.js:190:19\n at D:\\Node-Jonas\\Node-Rest-Api\\utilis\\catchAsync.js:3:5\n at Layer.handle [as handle_request] (D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\router\\layer.js:95:5)\n at next (D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\router\\route.js:137:13)\n at Route.dispatch (D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\router\\route.js:112:3)\n at Layer.handle [as handle_request] (D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\router\\layer.js:95:5)\n at D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\router\\index.js:281:22\n at param (D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\router\\index.js:354:14)\n at param (D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\router\\index.js:365:14)\n at param (D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\router\\index.js:365:14)\n at param (D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\router\\index.js:365:14)\n at Function.process_params (D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\router\\index.js:410:3)\n at next (D:\\Node-Jonas\\Node-Rest-Api\\node_modules\\express\\lib\\router\\index.js:275:10)"
}
how i can solve this issue?Thanks
I came across this exact error. You need to add "await" to your call to the Tours model as you're using async/await. You also need to include the field name you're querying on per @Anatoly's point:
const tours = await Tour.find({
yourfieldname: {
$geoWithin: { $centerSphere: [[lng, lat], radius] }
}
});