Add data to Cloud Firestore in Loop - node.js

Question

I have a nested json which have a key and value is another json with key and value. Below is the json.
{
"Testicular Torsion": {
"What is testicular torsion?": "ABC",
"Symptoms": "AB",
"Risks": "AL",
"Diagnosis": "LK",
"Treatment": "UY"
},
"XYZ": {
"X": "ABC",
"Symptoms": "AB",
"Risks": "AL",
"Diagnosis": "LK",
"Treatment": "UY"
}
};
What I am trying to do is insert the data in cloud firestore of firebase. Following is the code for the same. But the issue is, only the first key value pair(In this case the Testicular Torsion key and it's value which is another JSON) is getting inserted and not other key value pairs. Why is the case and what needs to be done in the code?
var string_medical_data = JSON.stringify(medical_json);
var json_medical = JSON.parse(string_medical_data);
function abc(poi){
firestore.collection('medical').doc(poi).set(json_medical[poi])
.then(() => {
return console.log("Added");
})
.catch((e => {
console.log('error: ', e);
return console.log(e);
}))
}
exports.medical = functions.https.onRequest((request, response) => {
var problems = [];
for(var myKey in json_medical) {
problems.push(myKey);
break;
}
for(var i=0;i<problems.length;i++){
// firestore.collection('medical').doc(problems[i]).set(json_medical[problems[i]])
abc(problems[i]);
}
response.send({
'fulfillmentText': `Success!!!`
});
});

Answer 1

You'd probably be better off doing this in a batch request. You can commit multiple writes in a single request. If your data has more than 500 entries you'll have to do break it up and do 500 at a time.
exports.medical = functions.https.onRequest((request, response) => {
var batch = firestore.batch();
for(var myKey in json_medical) {
var myKeyRef = firestore.collection('medical').doc(myKey);
batch.set(myKeyRef, json_medical[myKey]);
}
batch.commit().then(function () {
response.send({
'fulfillmentText': `Success!!!`
});
});
});