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JSON over HTTP

syed ahmad

Hi,

I am using AJAX JSON over HTTP to send using CGI.
It is working. Does Keil web server CGX supports JSON RPC.

Currently I have to Post JSON using CGX using

$.ajax({ type: "POST", url: "xmlHttp.cgx", data: post_data, contentType: "text/xml", datatype : "text", success: function(data) {

}, error: function (xhr, ajaxOptions, thrownError) {

} });

contentType is xml. If I set JSON/application then I do not get cgi_process_data call.

Parents
  • 0 in reply to Franc Urbanc

    I notice that you have the function

    void cgi_process_data (
    U8  code,     /* Type of data in received data buffer. */
    U8* dat,      /* Pointer to the data string from the POST method. */
    U16 len );    /* Number of bytes in the data string. */

    code = 0 means a POST with form data operation.
    code = 4 means a POST with some other data.

    So if code is 4, then the user has to call

    U8 *http_get_content_type (void);


    to check for example if the received data was 'application/json' or whatever the embedded device might want to process.

    Can the web server only handle one single page request at a time - or how is the global state of http_get_content_type() handled? How long is it valid? Until cgi_process_data() returns?

    Another thing - why does the Keil HTTP documentation specifically discuss Silverlight? Silverlight is one in a million different sources of M2M-communicated data. I feel the manual would do better mentioning lifetime of data than mentioning a MS-specific tool.

Reply
  • 0 in reply to Franc Urbanc

    I notice that you have the function

    void cgi_process_data (
    U8  code,     /* Type of data in received data buffer. */
    U8* dat,      /* Pointer to the data string from the POST method. */
    U16 len );    /* Number of bytes in the data string. */

    code = 0 means a POST with form data operation.
    code = 4 means a POST with some other data.

    So if code is 4, then the user has to call

    U8 *http_get_content_type (void);


    to check for example if the received data was 'application/json' or whatever the embedded device might want to process.

    Can the web server only handle one single page request at a time - or how is the global state of http_get_content_type() handled? How long is it valid? Until cgi_process_data() returns?

    Another thing - why does the Keil HTTP documentation specifically discuss Silverlight? Silverlight is one in a million different sources of M2M-communicated data. I feel the manual would do better mentioning lifetime of data than mentioning a MS-specific tool.

Children