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Content type in call to web service

Please correct me if I'm wrong in defining contet type:
Content-Type: application/json; charset=utf-8
{"my_id":"975","my_a_id":"Test66","param":"4","amount":"66"}
and
Content-Type: application/x-www-form-urlencoded
my_id=123&my_a_id=Test66&param=4&amount=66
What other content types might be?
What content type supports RESTLet NetSuite services?
I have POST to web service:
POST https://some.netsuite.uri?deploy=1 HTTP/1.1
Authorization: NLAuth nlauth_account=3624292_SB3, nlauth_email=xduh31#gmail.com, nlauth_signature=Pass987654, nlauth_role=3
Accept: application/json
Content-Type: application/json; charset=utf-8
Host: rest.eu1.netsuite.com
Cookie: JSESSIONID=**************************************; lastUser=1234567_SB9_1282_3; NS_ROUTING_VERSION=LAGGING; NS_VER=2017.1.0
Content-Length: 69
Expect: 100-continue
{"my_id":"975","my_a_id":"Test66","param":"4","amount":"66"}
Is it good that in URL I have something like x-www-form-urlencoded - ?deploy=1
https://some.netsuite.uri?deploy=1
and data is json style:
{"my_id":"975","my_a_id":"Test66","param":"4","amount":"66"}
UPD
I got answer that I suppose should return JSON data:
HTTP/1.1 200 OK
Date: Sat, 03 Jun 2017 06:21:46 GMT
Server: Apache
Cache-Control: No-Cache
Pragma: No-Cache
Content-Length: 41
Expires: 0
Edge-Control: no-store
X-N-OperationId: 486c2d20-099d-446b-9788-4816db59a1fd
Set-Cookie: .......................; path=/
NS_RTIMER_COMPOSITE: 1688996695:706172746E6572733030312E70726F642E6475622E6E65746C65646765722E636F6D:80
P3P: CP="CAO PSAa OUR BUS PUR"
Vary: User-Agent
Content-Type: application/json; charset=utf-8
org.mozilla.javascript.Undefined#54b896b0
But this answer not looks like JSON?

One problem might be your URL. Have you tried changing
https://some.netsuite.uri&deploy=1
to
https://some.netsuite.uri?deploy=1
Edit:
Also, your Accept header says you are looking for an application/json response, is that what the server is returning?

You can find supported content types in NS Help Center:
RESTlets support JSON and plain text content types for input and
output. For each RESTlet, output content type is the same as input
content type.
You must set the content type in the HTTP Content-Type header. You can
use the following values to specify the input/output content type for
a RESTlet:
application/json
text/plain
If you specify a content type other than JSON or text, a 415 error is
returned with the following message:
Invalid content type. You can only use application/json or text/plain
with RESTlets.
Documentation
Besides that the issue in the url mentioned by shazmodan, the script Id is missing. Below is an example of a valid restlet url:
https://rest.netsuite.com/app/site/hosting/restlet.nl?deploy=1&script=1
You can pass additional parameters in the url:
https://rest.netsuite.com/app/site/hosting/restlet.nl?deploy=1&script=1&my_id=123&my_a_id=Test66&param=4&amount=66
or in the request body if you are using POST and PUT methods but it needs to be a valid JSON. But the Content Type must always be application/json or text/plain.

ASP.NET reading content from inner octet/stream

I have HTTP request from some device with body:
--18113960011
Content-Disposition: form-data; name="message"; filename="data"
Content-Type: application/octet-stream
�o��\��Հ��vx�+�#:�țdV+
Iy#o*,cޙ��k
--18113960011--
And I accept this request in ASP.NET Web API controller. How I can read this inner data
�o��\��Հ��vx�+�#:�țdV+
Iy#o*,cޙ��k
as array of bytes using native way (no using substring extracting)?

How to decode an encoded POST data

From a payment provider I get the data as a POST and encoded with
Content-Type: application/x-www-form-urlencoded; charset=utf-8
the issue is that I need to retrieve the data from the
HttpContext.Current.Request.Form
and a simple System.Web.HttpUtility.UrlDecode(context.Request.Form[0])
returns:
"\" transactionRef\"\r\n\r\nd68cafc5d6c8472a893eb0763efca625\r\n------WebKitFormBoundaryKVsW8jF9QdwY35ca\r\nContent-Disposition: form-data; name=\"transactionNumber\"\r\n\r\n10526728\r\n------WebKitFormBoundaryKVsW8jF9QdwY35ca\r\nContent-Disposition: form-data; name=\"orderRef\"\r\n\r\nc7853c2513fd45758b80b95a2dbaf9fa\r\n------WebKitFormBoundaryKVsW8jF9QdwY35ca\r\nContent-Disposition: form-data; name=\"orderId\"\r\n\r\n50043628\r\n------WebKitFormBoundaryKVsW8jF9QdwY35ca\r\nContent-Disposition: form-data; name=\"accountNumber\"\r\n\r\n50250954\r\n------WebKitFormBoundaryKVsW8jF9QdwY35ca\r\nContent-Disposition: form-data; name=\"zzzz\"\r\n\r\nmust be here to get http post to work"
How can I decode the data so I can retrieve each parameter correctly? for example, extract the transactionRef or orderRef?
I did it in a very weird way and I just wonder if there's something easier/failproof that we can use:

Photo Upload On Facebook

I want to Upload Photo to Facebook Page using HttpWebRequest
and I don't want to use Facebook Graph API ..
via live http header i get the url and data which is need to be posted
user=XXXXXXXXXXXXX&_a=1&_dyn=XXXXXXXXXXXX&_req=s&fb_dtsg=AQAszPoc&ttstamp=26581651151228011199&__rev=1141676">https://upload.facebook.com/ajax/composerx/attachment/media/saveunpublished?target_id=XXXXXXXXXXXXXX1&_user=XXXXXXXXXXXXX&_a=1&_dyn=XXXXXXXXXXXX&_req=s&fb_dtsg=AQAszPoc&ttstamp=26581651151228011199&__rev=1141676
DATA which will be used for sending with url
-----------------------------3300296215819
Content-Disposition: form-data; name="fb_dtsg"
AQAszPoc
-----------------------------3300296215819
Content-Disposition: form-data; name="source"
8
-----------------------------3300296215819
Content-Disposition: form-data; name="profile_id"
xxxxxxxxxxx
-----------------------------3300296215819
Content-Disposition: form-data; name="grid_id"
u_6_0
-----------------------------3300296215819
Content-Disposition: form-data; name="qn"
a9f0f5a0f2104b0ef0656f692cda9893
-----------------------------3300296215819
Content-Disposition: form-data; name="0"; filename="1794679_698919370150942_1311355907_n.jpg"
Content-Type: image/jpeg
YOUR DATA OR IMAGE
-----------------------------85332783618735
Content-Disposition: form-data; name="upload_id"
1025
-----------------------------85332783618735--
I m not sure how to get this value
Content-Disposition: form-data; name="qn"
a9f0f5a0f2104b0ef0656f692cda9893
can someone helpe me out
everytime when i tried to upload i got error
for (;;);{"__ar":1,"error":1357032,"errorSummary":"Sorry, we got confused","errorDescription":"Please try refreshing the page or closing and re-opening your browser window.","payload":null,"bootloadable":{},"ixData":[]}
reason why i don't want to use FaceBook Graph API is that whenever we post/upload it display message " 33 minutes ago via Graph API Explore"
please help me out
Thanks

multipart/form-data + Sockets = Server not Responding

I'm using my own HTTP wrapper using sockets. So far everything works except multipart/form-data POST. When I send the data to server, it simply doesn't respond, so I'm guessing I'm missing something in my POST like I would need "\r\n\r\n" for regular requests.
This is my request:
POST /getproxies/get.php HTTP/1.1
Host: myhost.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:12.0) Gecko/20100101 Firefox/12.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Cookie: sid=UtozR43zQQAtVA2Np0KP_ZLnO0IYwwU1S_Tt4Z3N80wctL;
Connection: Close
Content-Type: multipart/form-data; boundary=---------------------------4664151417711
Content-Length: 411
---------------------------4664151417711
Content-Disposition: form-data; name="proxy_count"
20 proxies
---------------------------4664151417711
Content-Disposition: form-data; name="u"
13
---------------------------4664151417711
Content-Disposition: form-data; name="opt_1"
---------------------------4664151417711
Content-Disposition: form-data; name="opt_2"
GET
---------------------------4664151417711--
When I send the data, the connection is open, like it would be waiting on the server, but server doesn't respond. Any ideas what am I missing here? Thanks

Your boundary isn't matching the one declared on the boundary= part.
Content-Type: multipart/form-data; boundary=AaB03x
--AaB03x
Content-Disposition: form-data; name="submit-name"
Larry
--AaB03x
Content-Disposition: form-data; name="files"; filename="file1.txt"
Content-Type: text/plain
... contents of file1.txt ...
--AaB03x--

RFC 2046 - Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types:
The Content-Type field for multipart entities requires one parameter,
"boundary". The boundary delimiter line is then defined as a line
consisting entirely of two hyphen characters ("-", decimal value 45)
followed by the boundary parameter value from the Content-Type header
field, optional linear whitespace, and a terminating CRLF.
So I guess this should work:
Content-Type: multipart/form-data; boundary=54472172614771
Content-Length: 47
--54472172614771
Your data
--54472172614771--
Please note the boundary specified in the boundary parameter of the Content-Type header should match the boundary you use in the payload. Also note the boundaries also count towards the Content-Length.