Where s my JSON data in my incoming Django request

Question

I m trying to process incoming JSON Ajax requests with Django Python   request is ajax   is True on the request  but I have no idea where the payload is with the JSON data   request POST dir contains this       class        cmp        contains        copy        deepcopy        delattr         delitem        dict        doc        eq        ge        getattribute        getitem        gt        hash        init        iter        le        len         lt        module        ne        new        reduce        reduce ex        repr         setattr        setitem        str        weakref       assert mutable     encoding      get encoding     mutable     set encoding    appendlist    clear    copy    encoding     fromkeys    get    getlist    has key    items    iteritems    iterkeys    itervalues     keys    lists    pop    popitem    setdefault    setlist    setlistdefault    update     urlencode    values     There are apparently no keys in the request post keys   When I look at the POST in Firebug  there is JSON data being sent up in the request

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I had the same problem  I had been posting a complex JSON response  and I couldn t read my data using the request POST dictionary   My JSON POST data was     JavaScript code    Requires json2 js and jQuery  var response    data    a  1   b  2    a  2   b  2    json response   JSON stringify response      proper serialization method  read                                               http   ejohn org blog ecmascript-5-strict-mode-json-and-more    post  url  json response     In this case you need to use method provided by aurealus  Read the request body and deserialize it with the json stdlib    Django code  import json def save data request     if request method     POST       json data   json loads request body    request raw post data w  Django  lt  1 4     try        data   json data  data       except KeyError        HttpResponseServerError  Malformed data        HttpResponse  Got json data

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Method 1  Client   Send as JSON    ajax       url   example com ajax        type   POST       contentType   application json  charset utf-8       processData  false      data  JSON stringify   name   John    age   42                   Sent as a JSON object   name   John    age   42    Server    data   json loads request body      name   John    age   42    Method 2  Client   Send as x-www-form-urlencoded   Note  contentType  amp  processData have changed  JSON stringify is not needed     ajax       url   example com ajax        type   POST           data    name   John    age   42       contentType   application x-www-form-urlencoded  charset utf-8      Default     processData  true                Sent as a query string name John amp age 42   Server     data   request POST   will be  lt QueryDict   u name  u John   u age   42  gt      Changed in 1 5    https   docs djangoproject com en dev releases 1 5  non-form-data-in-http-requests     Non-form data in HTTP requests      request POST will no longer include data posted via HTTP requests with   non form-specific content-types in the header  In prior versions  data   posted with content-types other than multipart form-data or   application x-www-form-urlencoded would still end up represented in   the request POST attribute  Developers wishing to access the raw POST   data for these cases  should use the request body attribute instead    Probably related    https   groups google com forum   msg django-developers s8OZ9yNh-8c yWeY138TpFEJ https   code djangoproject com ticket 17942   Fixed in 1 7 http   homakov blogspot in 2012 06 x-www-form-urlencoded-vs-json-pros-and html

User · Answer

Something like this  It s worked  Request data from client  registerData        for field in userFields        field name        field name        endfor        var request     ajax      url      url  MainApp rq-create-account-json          method   POST      async  false     contentType   application json  charset utf-8      data  JSON stringify registerData      dataType   json       request done function  msg        alert msg       alert msg name        request fail function  jqXHR  status      alert status         Process request at the server   csrf exempt def rq create account json request      if request is ajax           if request method     POST              json data   json loads request body             print json data             return JsonResponse json data     return HttpResponse  Error

User · Answer

request raw response is now deprecated  Use request body instead to process non-conventional form data such as XML payloads  binary images  etc   Django documentation on the issue

User · Answer

Its important to remember Python 3 has a different way to represent strings - they are byte arrays   Using Django 1 9 and Python 2 7 and sending the JSON data in the main body  not a header  you would use something like   mydata   json loads request body    But for Django 1 9 and Python 3 4 you would use   mydata   json loads request body decode  utf-8      I just went through this learning curve making my first Py3 Django app

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Using Angular you should add header to request or add it to module config headers    Content-Type    application x-www-form-urlencoded     http       url  url      method  method      timeout  timeout      data  data      headers    Content-Type    application x-www-form-urlencoded

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html code   file name    view html        lt  DOCTYPE html gt       lt html gt       lt head gt       lt script src  http   ajax googleapis com ajax libs jquery 1 11 1 jquery min js  gt  lt  script gt       lt script gt        document  ready function                mySelect   change function                selected       mySelect option selected   text                 ajax                   type   POST                   dataType   json                   contentType   application json  charset utf-8                   url    view                    data                            fruit   selected                                          success  function result                            document write result                                                               lt  script gt       lt  head gt       lt body gt        lt form gt           lt br gt      Select your favorite fruit       lt select id  mySelect  gt         lt option value  apple  selected  gt Select fruit lt  option gt         lt option value  apple  gt Apple lt  option gt         lt option value  orange  gt Orange lt  option gt         lt option value  pineapple  gt Pineapple lt  option gt         lt option value  banana  gt Banana lt  option gt       lt  select gt       lt  form gt       lt  body gt       lt  html gt   Django code    Inside views py   def view request        if request method     POST           print request body         data   request body         return HttpResponse json dumps data

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The HTTP POST payload is just a flat bunch of bytes  Django  like most frameworks  decodes it into a dictionary from either URL encoded parameters  or MIME-multipart encoding  If you just dump the JSON data in the POST content  Django won t decode it  Either do the JSON decoding from the full POST content  not the dictionary   or put the JSON data into a MIME-multipart wrapper   In short  show the JavaScript code  The problem seems to be there

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If you are posting JSON to Django  I think you want request body  request raw post data on Django  lt  1 4   This will give you the raw JSON data sent via the post  From there you can process it further   Here is an example using JavaScript  jQuery  jquery-json and Django   JavaScript   var myEvent    id  calEvent id  start  calEvent start  end  calEvent end                 allDay  calEvent allDay      ajax       url    event save-json        type   POST       contentType   application json  charset utf-8       data    toJSON myEvent       dataType   text       success  function result            alert result Result               Django   def save events json request       if request is ajax            if request method     POST               print  Raw Data    s     request body        return HttpResponse  OK     Django  lt  1 4     def save events json request       if request is ajax            if request method     POST               print  Raw Data    s     request raw post data     return HttpResponse  OK

User · Answer

request raw post data has been deprecated  Use request body instead

User · Answer

on django 1 6 python 3 3  client    ajax       url    urll        type   POST       contentType   application json  charset utf-8       data  JSON stringify json object       dataType   json       success  function result            alert result Result               server  def urll request    if request is ajax        if request method     POST           print   Raw Data    request body            print   type request body     type request body     this type is bytes          print json loads request body decode  utf-8

User · Answer

request POST is just a dictionary-like object  so just index into it with dict syntax   Assuming your form field is fred  you could do something like this   if  fred  in request POST      mydata   request POST  fred     Alternately  use a form object to deal with the POST data

[python] Where's my JSON data in my incoming Django request?

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