Forum OpenACS Development: ns_http instead of curl for posting files

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1: ns_http instead of curl for posting files
Posted by Malte Sussdorff on 11/23/20 04:18 PM
Maybe it is straight forward:

curl -X POST -F 'file=@/tmp/test.odt' -F 'name=test.pdf' -F 'type=pdf' http://localhost:3201/convert --output test.pdf

how do I achieve the same with using ns_http?

In the examples I see the post_data combined using urlencode and I'm not entirely convinced this is the best thing to do for files. And as -body and -body_file are mutually exclusive I am wondering how to add the additional parameters

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2: Re: ns_http instead of curl for posting files (response to 1)
Posted by Antonio Pisano on 11/23/20 04:53 PM

Dear Malte,

if your instance uses OpenACS, the util::http::post[1] should let you upload files without much trouble using an idiom like:

util::http::post -url https://example.domain.com -files {{file /tmp/file1 fieldname upload-file}}

This should use the correct multipart format out of the box.

If you want to use the ns_http directly, you need to construct the body yourself. If the receiving backend is under your control, maybe a PUT would be more convenient, something like:

ns_http run -method PUT -headers $headers -body_file $file $url

Hope this helps

Antonio

[1] https://openacs.org/api-doc/proc-view?proc=util::http::post&source_p=1

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3: Re: ns_http instead of curl for posting files (response to 1)
Posted by Antonio Pisano on 11/23/20 05:00 PM
Concerning the file received in the response, please check out the -spool flag in https://openacs.org/api-doc/proc-view?proc=util::http::post&source_p=1, or the -outputfile in https://naviserver.sourceforge.io/n/naviserver/files/ns_http.html

Ciao

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4: Re: ns_http instead of curl for posting files (response to 3)
Posted by Malte Sussdorff on 11/30/20 05:09 PM
THank you Antonio. I solved it differently using chilkat as we actually need to use https, but your code will come in handy later.