Parent Topic: Sending HTTP Requests to Web Services

Use the POST or PUT HTTP methods to upload files to a Web service. The Web service stores the files as .tmp files in a temporary directory.

Uploading a File using HTML Forms

The following HTML code creates an HTML form that uses the POST method to upload a file to a Web service. The Web service name is MyWebService. The URL mapping is /upload.

<form name="send" action="/MyWebService/upload" enctype="multipart/form-data" method="POST"> <input type="file" name="uploadedFile"> <input type="submit" value="Submit"> </form>

This HTML code creates a form with one value field and a submit button. If you assign a file on the client-side, SampleFile.txt for example, to the field labeled uploadedFile and click the submit button, the HTML form submits SampleFile.txt to the Web service.

Uploading a File using the HTTP Client VIs

Use the POST, POSTMultipart, and PUT VIs to create a web client in LabVIEW that uploads files to a Web service. The following figure shows code that uses the POSTMultipart VI to upload a file similar to the HTML form in the previous example.

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