PowerBuilder 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. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_SbCurl
oleobject loo_Curl
oleobject loo_SbRawRequest

li_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}}}'

loo_SbCurl = create oleobject
li_rc = loo_SbCurl.ConnectToNewObject("Chilkat.StringBuilder")
if li_rc < 0 then
    destroy loo_SbCurl
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_SbCurl.AppendLn("curl -X POST https://api.example.com/data ~")
loo_SbCurl.AppendLn("  -H ~"Content-Type: application/json~" ~")
loo_SbCurl.AppendLn("  -d '{~"name~":~"{{name}}~",~"age~":{{age}}}'")

loo_Curl = create oleobject
li_rc = loo_Curl.ConnectToNewObject("Chilkat.HttpCurl")

//  Provide values for variables.
loo_Curl.SetVar("name","Alice")
loo_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.
loo_SbRawRequest = create oleobject
li_rc = loo_SbRawRequest.ConnectToNewObject("Chilkat.StringBuilder")

li_Success = loo_Curl.ToRawRequest(loo_SbCurl.GetAsString(),loo_SbRawRequest)
if li_Success = 0 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_SbCurl
    destroy loo_Curl
    destroy loo_SbRawRequest
    return
end if

Write-Debug loo_SbRawRequest.GetAsString()

//  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

loo_Curl.EnableBodyVars = 0

li_Success = loo_Curl.ToRawRequest(loo_SbCurl.GetAsString(),loo_SbRawRequest)
if li_Success = 0 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_SbCurl
    destroy loo_Curl
    destroy loo_SbRawRequest
    return
end if

Write-Debug loo_SbRawRequest.GetAsString()

//  The raw request with body variable substitution disable:

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


destroy loo_SbCurl
destroy loo_Curl
destroy loo_SbRawRequest