Perl Requires Chilkat v11.5.0+

curl with Variable Substitution in the Request Body

See more CURL Examples

This example demonstrates using variables located in the request body with the {{variable_name}} syntax. Perl

use chilkat();

$success = 0;

#  Variables can also be used within the HTTP request body.
#  Variable names are enclosed between {{ and }}

#  Here is a curl command with two variables {{name}} and {{age}} located in the data.

#  curl -X POST https://api.example.com/data \
#    -H "Content-Type: application/json" \
#    -d '{"name":"{{name}}","age":{{age}}}'

$sbCurl = chilkat::CkStringBuilder->new();
$sbCurl->AppendLn("curl -X POST https://api.example.com/data \\");
$sbCurl->AppendLn("  -H \"Content-Type: application/json\" \\");
$sbCurl->AppendLn("  -d '{\"name\":\"{{name}}\",\"age\":{{age}}}'");

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

#  Provide values for variables.
$curl->SetVar("name","Alice");
$curl->SetVar("age","30");

#  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";

#  Output:

#  POST /data HTTP/1.1
#  Host: api.example.com
#  Content-Type: application/json
#  Content-Length: 25
#  
#  {"name":"Alice","age":30}

#  --------------------------------------------------------------------------------------------------
#  Note: Variable substitution in the request body can be turned off by 
#  setting the EnableBodyVars property equal to 0

$curl->put_EnableBodyVars(0);

$success = $curl->ToRawRequest($sbCurl->getAsString(),$sbRawRequest);
if ($success == 0) {
    print $curl->lastErrorText() . "\r\n";
    exit;
}

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

#  The raw request with body variable substitution disable:

#  Host: api.example.com
#  Content-Type: application/json
#  Content-Length: 33
#  
#  {"name":"{{name}}","age":{{age}}}