problem with passing objects from array in collection.find()

Question

I can't seem to figure out how to pass objects from arry in collection.find('{pid: patient[0][i].pid}'). it is a concatenation problem.

router.get('/fullsurveys/:doctor', async (request, res) => {
    try{
        const doctor = JSON.parse(request.params.doctor);
        posts = [];
        patients = [];
        patients.push(await Patient.find(doctor));
        for(var i = 0; i < patients[0].length; i++){
            if(patients[0][i].patientstate == true){
                posts.push(await FullSurvey.find('{pid: patient[0][i].pid}'));
            }
        }
        res.json(posts);   
        }catch(err){
        res.json({message: err});
    }
});

Answer 1

You are passing stringified json in find function & the variable name in FullSuvery.find seems to be wrongs, you have patient[0][i].pid when it should have been patients[0][i].pid

Change you code to

router.get('/fullsurveys/:doctor', async (request, res) => {
    try{
        const doctor = JSON.parse(request.params.doctor);
        posts = [];
        patients = [];
        patients.push(await Patient.find({doctor:doctor}));
        for(var i = 0; i < patients[0].length; i++){
            if(patients[0][i].patientstate == true){
                posts.push(await FullSurvey.find({pid: patients[0][i].pid}));
            }
        }
        res.json(posts);   
        }catch(err){
        res.json({message: err});
    }
})