Task: testworkflow1234

n8n workflow:
{"id":1,"name":"My workflow","nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[200,300],"parameters":{},"typeVersion":1},{"name":"HTTP Request","type":"n8n-nodes-base.httpRequest","position":[380,300],"parameters":{"url":"https://anadarkodozer.com/dozerworks/webservice.php","options":{},"queryParametersUi":{"parameter":[{"name":"operation","value":"getchallenge"},{"name":"username","value":"admin"}]}},"typeVersion":1},{"name":"HTTP Request1","type":"n8n-nodes-base.httpRequest","position":[560,300],"parameters":{"url":"https://anadarkodozer.com/dozerworks/webservice.php","options":{"bodyContentType":"multipart-form-data"},"requestMethod":"POST","bodyParametersUi":{"parameter":[{"name":"operation","value":"login"},{"name":"username","value":"admin"},{"name":"accessKey","value":"b30df7b57d37a43a3df4048c5c849cf0"}]}},"typeVersion":1},{"name":"Item Lists","type":"n8n-nodes-base.itemLists","position":[880,320],"parameters":{"options":{},"operation":"aggregateItems","fieldsToAggregate":{"fieldToAggregate":[{}]}},"typeVersion":1}],"active":false,"settings":{},"connections":{"HTTP Request":{"main":[[{"node":"HTTP Request1","type":"main","index":0}]]},"HTTP Request1":{"main":[[]]},"On clicking 'execute'":{"main":[[{"node":"HTTP Request","type":"main","index":0}]]}}}