All examples are of GET only but for freshers consume a webservice with POST method. https://www.ibm.com/support/knowledgecenter/SSEPEK_11.0.0/sqlref/src/tpc/db2z_sampleuserdefinedfunctionsintro.html https://www.itjungle.com/2017/09/18/guru-consuming-rest-web-service-using-sql-get/ https://www.anandk.dev/2020/08/Webservice-IBMi-AS400.html https://restfulapi.net/