The categories below list KB articles with examples of calling qie.callRESTWebService():
How can I add query string parameters to a REST WS call?
How do I add custom http headers to a rest web service call?
How do I force the content-type http header on a call when no content is sent?
How can I send a binary file in a webservice call?
How do a make a multipart/form-data post to a webservice endpoint
How to attach pdf file into RESTful Webservice for Secure emailing.
See second answer:
Uploading a Text File via Stream with qie.callRESTWebService().
Uploading an image or binary File via Stream with qie.callRESTWebService()
Uploading a Image/Binary File via Stream with qie.callRESTWebService() as multipart/related request.
Uploading a Image/Binary File via Stream with qie.callRESTWebService() as multipart/form-data request.
How do I download a PDF file via HTTP?
How to stream large files or binary files to disk with qie.callRESTWebService() in mapping function?
How do I parse an MTOM Response from a rest web service call?
See also:
Handling HTTP requests and responses