Dynamic Web.Contents Power BI Refresh Error

This is what I have tried but there is some issue with the Query part, would really love some help.

(DateRange)=>

let
    Source = Web.Contents("https://api.weworked.com/v1/reports", [Query=[summary?fromdate="&DateRange&"&projects=all&showzeros=0&taskstatus=all&timestatus=all&users=all], Headers=[#"x-api-key"="xxxxxxxxxxxxxxxxxx", #"x-ww-user"="[email protected]"]]),
    #"JSON" = Json.Document(Source),
    #"Converted to Table" = Table.FromList(JSON, Splitter.SplitByNothing(), null, null, ExtraValues.Error),
    #"Expanded Column1" = Table.ExpandRecordColumn(#"Converted to Table", "Column1", {"FirstName", "LastName", "UserId", "InternalId", "Rows"}, {"Column1.FirstName", "Column1.LastName", "Column1.UserId", "Column1.InternalId", "Column1.Rows"}),
    #"Expanded Column1.Rows" = Table.ExpandListColumn(#"Expanded Column1", "Column1.Rows"),
    #"Expanded Column1.Rows1" = Table.ExpandRecordColumn(#"Expanded Column1.Rows", "Column1.Rows", {"project", "task", "taskCode", "billable", "invoiceMethodId", "invoiceMethodName", "rate", "hours", "total"}, {"Column1.Rows.project", "Column1.Rows.task", "Column1.Rows.taskCode", "Column1.Rows.billable", "Column1.Rows.invoiceMethodId", "Column1.Rows.invoiceMethodName", "Column1.Rows.rate", "Column1.Rows.hours", "Column1.Rows.total"})
in
    #"Expanded Column1.Rows1"