Cosmos DB SQL API Node.js - Continuation Token - azure-cosmosdb

Question

I am using the following code to get the list of documents using pagination. The code is working fine. But how do I find the continuation token if I want to send it from the client for pagination.
function queryCollectionPaging() {
return new Promise((resolve, reject) => {
function executeNextWithRetry(iterator, callback) {
iterator.executeNext(function (err, results, responseHeaders) {
if (err) {
return callback(err, null);
}
else {
documents = documents.concat(results);
if (iterator.hasMoreResults()) {
executeNextWithRetry(iterator, callback);
}
else {
callback();
}
}
});
}
let options = {
maxItemCount: 1,
enableCrossPartitionQuery: true
};
let documents = []
let iterator = client.queryDocuments( collectionUrl, 'SELECT r.partitionkey, r.documentid, r._ts FROM root r WHERE r.partitionkey in ("user1", "user2") ORDER BY r._ts', options);
executeNextWithRetry(iterator, function (err, result) {
if (err) {
reject(err)
}
else {
console.log(documents);
resolve(documents)
}
});
});
};

Answer 1

You could find the continuation token in the responseHeaders parameter, please try to use responseHeaders ['x-ms-continuation'] to grab it.
Such as :
continuationToken = responseHeaders ['x-ms-continuation'];
Then you could pass the token as a parameter to the execute method.
let options = {
maxItemCount: 1,
enableCrossPartitionQuery: true,
continuation : continuationToken
};
If the continuationToken is null, it means no more results.
You could refer to my previous case: How to get & set Cosmos Db continuation token in javascript.