Simple HTTP Post

Question

I am trying to convert a http form with input fields into a basic file that I can throw into my microcontroller code. I am missing something basic, because the server is not accepting the value. Here is the code after I tried to convert it to name value pairs from input fields

<html>
<body>
    <form action="website"
        enctype="multipart/form-data" method="post">
        <utcdatatime="2013-06-16T23:20:40"&leftsource="1"&rightsource="1"&automatictransfer="1"&eventstatus="1"&preferred="1">
    </form>
</body>
</html>

Here is the input field version:

<html>
<body>
    <form action="website"
        enctype="multipart/form-data" method="post">

                    <input type="text" name="utcdatatime" size="20" value="2013-06-16T23:20:40" />

                    <input type="text" name="leftsource" size="2" value="1" />

                    <input type="text" name="rightsource" size="2" value="4" />

                    <input type="text" name="automatictransfer" size="2" value="4" />

                    <input type="text" name="eventstatus" size="2" value="2" />

                    <input type="text" name="preferred" size="2" value="1" />
                    <input type="submit" value="Send" />
    </form>
</body>
</html>

I was able to get a basic post, but this code is pretty heavy for an arduino to build up and then send, I also can't get the / on the second line to work in the Arduino but I think I'll figure that out

POST /post_url.php HTTP/1.1
Accept: text/html, application/xhtml+xml, */*
Accept-Language: en-US
User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)
Content-Type: multipart/form-data; boundary=---------------------------7dd35a2aab1494
Accept-Encoding: gzip, deflate
Content-Length: 1018
DNT: 1
Host: website
Pragma: no-cache

-----------------------------7dd35a2aab1494
Content-Disposition: form-data; name="customerkey"

3432-1GH4-88RG-7B2A
-----------------------------7dd35a2aab1494
Content-Disposition: form-data; name="responsetype"

simple
-----------------------------7dd35a2aab1494
Content-Disposition: form-data; name="filetype"

sandc_microat
-----------------------------7dd35a2aab1494
Content-Disposition: form-data; name="gatewayid"

0011223355AA
-----------------------------7dd35a2aab1494
Content-Disposition: form-data; name="leftsource"

1
-----------------------------7dd35a2aab1494
Content-Disposition: form-data; name="rightsource"

4
-----------------------------7dd35a2aab1494
Content-Disposition: form-data; name="automatictransfer"

4
-----------------------------7dd35a2aab1494
Content-Disposition: form-data; name="eventstatus"

2
-----------------------------7dd35a2aab1494
Content-Disposition: form-data; name="automatictransfer"

1
-----------------------------7dd35a2aab1494--

========================== POST END=================================

Terry Kernan · Accepted Answer · 2013-06-25 20:29:16Z

2

why can't you use the input version? You could always use 'hidden' fields instead of 'text' fields:

<input type="hidden" name="rightsource" value="4" /> <!-- size attr not required -->

Also unless you are posting (uploading) files, I'm pretty sure you don't need the enctype, this will insert mime data into the post, you could just remove it.

this js fiddle should show an example of a post to suit your requirements, this creates a post request on the arduino system and sends it to website/post_url.php:

http://jsfiddle.net/terrykernan/8z2VF/

edited Jun 25, 2013 at 20:29

answered Jun 24, 2013 at 23:46

Terry Kernan

8167 silver badges12 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

napkinsterror Over a year ago

I am trying to convert it to a POST so I can have a microcontroller (Arduino) compile and POST this itself.

Terry Kernan Over a year ago

if you do a simple post without the enctype, does the arduino pick that up?

napkinsterror Over a year ago

The enctype is set. I don't understand what you mean the arduino pick it up? I am having the arduino make this post to a server.

Terry Kernan Over a year ago

ah in that case I think I know what you are trying to do, my answer has been updated

Collectives™ on Stack Overflow

Simple HTTP Post

1 Answer 1

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related