HTTPS PUT method in tclcurl

[Michael Vork]

Hi all,

Has anybody experience with the PUT method within tclcurl?

I am calling a webservice with method POST with data in JSON format.

With the POST method you can use parameter -postfields.

Example:

set msg “{“id”:”1234″,”text”:”Hello world”}”

set ch [ curl::init ]

set url “https://xxx.xxxxxxxxx.com/v1/aux/xxxxx“

$ch configure -post 1

$ch configure -postfields $msg

etc

This works fine.

But after that I would like to change the content of the message and update it via the PUT method.

That should be something like this:

set msg “{“text”:”Hello other world”}”

set ch [ curl::init ]

set url “https://xxx.xxxxxxxxx.com/v1/aux/xxxxx/id1234“

$ch configure -put 1

$ch configure -postfields $msg

etc

At this point I cannot use the -postfields parameter.

What alternative  for -postfields can I use to PUT the changes?

Thanks for your response.

Regards,

Micha

Topic

[Levy Lazarre]

Hi Michael,

I have two suggestions for you:

1. In newer versions of TclCurl, the option “-put 1” has been deprecated and replaced by “-upload 1”, so you should change to

Code:

 $ch configure -upload 1

2. Unlike the ‘POST’ method, ‘PUT’ does not offer the option of sending a data string, but expects a file, with indication of the file size. So you need to write your data ($msg) to a temporary file, say ‘tempfile.txt’ and complete the configuration like this:

Code:

$ch configure -infile tempfile.txt
$ch configure -infilesize [file size tempfile.txt]

I hope this helps.

[Rob Lindsey]

We are running CL 6.1.1 on RHEL.

This is how we are doing a POST to a web service.  

Code:

catch {
   curl::transfer -verbose 1 -userpwd $userid:$password -url $URL -header 1 -httpheader $httpHeaders -post 1 -postfields $soapMsg -bodyvar reply -errorbuffer err
} tclerr

Anything that gets sent back as a reply gets put into the variable   reply    

Hope this helps.

Rob

[Michael Vork]

Hi there,

Pretty devious this upload mechanism but it works.

Thanks for the help.

Regards,

Micha

[Levy Lazarre]

I agree that the upload mechanism is rather inconvenient. Here is something else to try, maybe it will work for you. Remove the upload, infile, and infilesize configs. Just use:

Code:

$ch configure -customrequest PUT -postfields $msg

Let’s see what happens.

[Author]

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