Perl Requires Chilkat v11.5.0+

curl with Variable Substitution in an XML Request Body

See more CURL Examples

This example shows how to use variables inside an XML request body using the {{variable_name}} syntax. When the HTTP request’s Content-Type indicates XML, Chilkat automatically applies proper XML entity encoding to each substituted value, ensuring the resulting XML remains valid. Perl

use chilkat();

$success = 0;

#  Variable names are enclosed between {{ and }}

#  curl -X POST https://api.example.com/api/orders \
#    -H "Content-Type: application/xml; charset=utf-8" \
#    -H "Accept: application/xml" \
#    -d '<order>
#    <customerName>{{customer_name}}</customerName>
#    <note>{{note}}</note>
#    <address>{{address}}</address>
#    <instructions>{{instructions}}</instructions>
#  </order>'

$sbCurl = chilkat::CkStringBuilder->new();
$sbCurl->AppendLn("curl -X POST https://api.example.com/api/orders \\");
$sbCurl->AppendLn("  -H \"Content-Type: application/xml; charset=utf-8\" \\");
$sbCurl->AppendLn("  -H \"Accept: application/xml\" \\");
$sbCurl->AppendLn("  -d '<order>");
$sbCurl->AppendLn("  <customerName>{{customer_name}}</customerName>");
$sbCurl->AppendLn("  <note>{{note}}</note>");
$sbCurl->AppendLn("  <address>{{address}}</address>");
$sbCurl->AppendLn("  <instructions>{{instructions}}</instructions>");
$sbCurl->AppendLn("</order>'");

$curl = chilkat::CkHttpCurl->new();

#  The values below contain chars that will require XML entity encoding.  
#  Chilkat will automatically do the encoding because the Content-Type of this request is "application/xml"
$curl->SetVar("customer_name","John & Sons");
$curl->SetVar("note","He said \"Ship it ASAP!\"");
$curl->SetVar("address","123 <Main> Street");
$curl->SetVar("instructions","Use door #2 & call upon arrival");

#  To demonstrate how the variables are replaced, this example does not execute the curl command. 
#  Instead, it generates the raw HTTP request that would be sent if the curl command were run.
$sbRawRequest = chilkat::CkStringBuilder->new();
$success = $curl->ToRawRequest($sbCurl->getAsString(),$sbRawRequest);
if ($success == 0) {
    print $curl->lastErrorText() . "\r\n";
    exit;
}

print $sbRawRequest->getAsString() . "\r\n";

#  The output is shown below.
#  Notice the chars that were XML entity encoded.

#  POST /api/orders HTTP/1.1
#  Accept: application/xml
#  Host: api.example.com
#  Content-Type: application/xml; charset=utf-8
#  Content-Length: 229
#  
#  <order>
#    <customerName>John &amp; Sons</customerName>
#    <note>He said &quot;Ship it ASAP!&quot;</note>
#    <address>123 &lt;Main&gt; Street</address>
#    <instructions>Use door #2 &amp; call upon arrival</instructions>
#  </order>