Fetching ALL data set from API iterating via response data

Question

Does this make sense? How would you achieve the same thing, with cleaner code?

function retrieveBatch(offset){
 var opts = {}
 opts.limit = 100
 if(offset) opts.offset = offset
 return new Promise(function(resolve, reject) {
 chargebee.subscription
 .list(opts)
 .request(function(err, value){
 if(err) return reject(err)
 return resolve(value)
 })
 })
}
function retireveAll(){
 var subscriptions = []
 function inception(data){
 if(!data) return retrieveBatch().then(inception)
 if(data && data.list) subscriptions.push(data.list)
 if(data && data.next_offset) return retrieveBatch(data.next_offset).then(inception)
 if(data && !data.next_offset) return _.flatten(subscriptions)
 }
 return Promise.resolve(inception(false))
}

Answer 1

I only have some minor additions, maybe a little syntax sugar. I've tested most of it in the JavaScript console, and it still needs at least some JSBin trials before going live.

function retrieveBatch(offset){
 var opts = {
 limit : 100,
 offset : offset || undefined
 };
 return new Promise(function(resolve, reject){
 chargebee.subscription
 .list(opts)
 .request(function(err, value){
 // return only if err is defined
 err && return reject(err);
 // if you got this far, there's only one way out
 return resolve(value);
 })
 })
}
function retrieveAll(){
 var subscriptions = [];
 function inception(data){
 if(!data){
 return retrieveBatch().then(inception);
 }
 if(data.list){
 subscriptions.push(data.list);
 }
 if(data.next_offset){
 return retrieveBatch(data.next_offset).then(inception);
 }
 return _.flatten(subscriptions);
 }
 return Promise.resolve(inception(false))
}