I was not going to participate in this SBC but Lumenaut's problem this week and a couple of questions about batch payments in slack dev channel changed my mind. I will use a private service (for batch deposits in an internal project) and this library https://github.com/dolcalmi/space-center/ (ongoing project) to do a library with the next features: V1 Batch payment with multiple "channels"/signers to reduce processing times load payment data from csv files V2 (probably after SBC) Handle invalid recipients because account errors (merge, not exists or not trustline) Handle rate limits and timeouts https://www.stellar.org/developers/horizon/reference/endpoints/transactions-create.html#timeout command line tool (or maybe a PR to bb8) Serverless API/Tool any feedback/requests is appreciated

YABS - Batch Payments

dolcalmi

I was not going to participate in this SBC but Lumenaut's problem this week and
a couple of questions about batch payments in slack dev channel changed my mind.

I will use a private service (for batch deposits in an internal project)
and this library https://github.com/dolcalmi/space-center/ (ongoing project)
to do a library with the next features:

Batch payment with multiple "channels"/signers to reduce processing times
load payment data from csv files

V2 (probably after SBC)

Handle invalid recipients because account errors (merge, not exists or not trustline)
Handle rate limits and timeouts https://www.stellar.org/developers/horizon/reference/endpoints/transactions-create.html#timeout
command line tool (or maybe a PR to bb8)
Serverless API/Tool

any feedback/requests is appreciated

dolcalmi

UPDATE:

the initial version has been published to npm https://www.npmjs.com/package/stellar-batch-payment

It allows batch payments from array, csv or stream (object mode) with up to 50 fee payers/channels and is implemented with node js streams with back pressure control.

hope it helps

ps: was tested in testnet with 140000 payments (transactions here https://justpaste.it/6u5e1) (more less the payments done by lumenaut)