how to use expath and Xquery to fetch a CSV file?

user_4531180 0
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How can this example of expath be adapted to grab and store a CSV file directly from a website?

xquery version "3.1";

import module namespace hc = "http://expath.org/ns/http-client";

let $url := "https://www.kingjamesbibleonline.org/Genesis-Chapter-1_Original-1611-KJV/"
let $request := 
    <hc:request href="{$url}" method="GET">
        <hc:header name="Connection" value="close"/>    
    </hc:request>
return
    hc:send-request($request)

Browsing to:

http://www.bccdc.ca/health-info/diseases-conditions/covid-19/data

the specific CSV file is:

http://www.bccdc.ca/Health-Info-Site/Documents/BCCDC_COVID19_Dashboard_Case_Details.csv

Of course, there are a multitude of ways to grab that file. But, how would it be done with xquery as above?

Obviously, changing the URL is the starting point, which, indeed, results in a large CSV file printed to the console.

basex xquery csv xpath xml
1 Answers

As @MartinHonnen already pointed out, BaseX has a CSV module.

Here is how to use it.

csv file addressbook.csv

FName, LName, Address, City
John, Doe, 3851 SW 52nd St., Miami
Mary, Dowson, 770 SE 21nd St., Orlando

XQuery

let $text := file:read-text("c:\Users\Yitzhak\Downloads\addressbook.csv")
return csv:parse($text, map { 'header': true() })

Output

<csv>
  <record>
    <FName>John</FName>
    <LName> Doe</LName>
    <Address> 3851 SW 52nd St.</Address>
    <City> Miami</City>
  </record>
  <record>
    <FName>Mary</FName>
    <LName> Dowson</LName>
    <Address> 770 SE 21nd St.</Address>
    <City> Orlando</City>
  </record>
</csv>
user_19323110
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