SOAP/REST api to get batch_id? Can we submit Multiple Batches (Adjust Multiple balances-flow)

Summary:

For Submit a Flow "Adjust Multiple Balances"

We are submitting the hdl zip files BalanceAdjustmentHeader.dat and BalanceAdjustmentLine.dat files to HCM HDL. In header we are submitting Batch_Names but in order to get those corresponding Batch_Id values how to fetch them?

Is there any soap / rest call to get the batch_id’s?  In soap request we need to send batch_id’s instead of batch_names how to get the batch_id’s for corresponding batch_names?

• can we submit multiple batches at once in single request For Submit a Flow "Adjust Multiple Balances" through soap service