React Native “TypeError: Failed to execute 'fetch' on 'Window': Request with GET/HEAD method cannot have body.”

Question

\'\'\' My code

saveBarcod() {

var email = \'skarakas\';
var password = \'skarakas\';

fetch(
  \'***********/sap/opu/odata/sap/ZCRM_TEST01_SRV/DataSet\