Hi i am automatin a website scrapper:
1st) set an item with an url - I need this step to update the data for the previous day
https://www2.bmf.com.br/pages/portal/bmfbovespa/lumis/lum-taxas-referenciais-bmf-ptBR.asp?data1=20220308&slcTaxa=DIC
2nd) I pass this item to a request node using this expression {{$json[“url”]}}
the result seems right: https://www2.bmf.com.br/pages/portal/bmfbovespa/lumis/lum-taxas-referenciais-bmf-ptBR.asp?data1=20220308&slcTaxa=DIC
But I got this error:
ERROR: UNKNOWN ERROR - check the detailed error for more information
The “url” argument must be of type string. Received undefined
I also tried to pass just the base url and the parameter data, but it didn’t work as well, it seems it is passing an empty string when running although the result feedback seems alright.