# Dokumentasi Django 4.2.9.dev20231204082947

# Obyek permintaan dan tanggapan

## Ikhtisar cepat

Django menggunakan obyek permintaan dan tanggapan untuk melewatkan keadaan melalui sistem.

When a page is requested, Django creates an `HttpRequest` object that contains metadata about the request. Then Django loads the appropriate view, passing the `HttpRequest` as the first argument to the view function. Each view is responsible for returning an `HttpResponse` object.

Dokumen ini menjelaskan API untuk obyek `HttpRequest` dan `HttpResponse`, yang ditentukan dalam modul `django.http`.

## Obyek `HttpRequest`

class `HttpRequest`

### Atribut

Semua atribut harus dianggap hanya-baca, meskipun dinyatakan sebaliknya.

`HttpRequest.``scheme`

  Sebuah string mewakili skema dari permintaan (biasanya `http` atau `https`).

`HttpRequest.``body`

  The raw HTTP request body as a bytestring. This is useful for processing data in different ways than conventional HTML forms: binary images, XML payload etc. For processing conventional form data, use `HttpRequest.POST`.

  You can also read from an `HttpRequest` using a file-like interface with `HttpRequest.read()` or `HttpRequest.readline()`. Accessing the `body` attribute after reading the request with either of these I/O stream methods will produce a `RawPostDataException`.

`HttpRequest.``path`

  A string representing the full path to the requested page, not including the scheme, domain, or query string.

  Contoh: `"/music/bands/the_beatles/"`

`HttpRequest.``path_info`

  Under some web server configurations, the portion of the URL after the host name is split up into a script prefix portion and a path info portion. The `path_info` attribute always contains the path info portion of the path, no matter what web server is being used. Using this instead of `path` can make your code easier to move between test and deployment servers.

  Sebagai contoh, jika `WSGIScriptAlias` untuk aplikasi anda disetel menjadi `"/minfo"`, kemudian `path` mungkin `"/minfo/music/bands/the_beatles/"` dan `path_info` menjadi `"/music/bands/the_beatles/"`.

`HttpRequest.``method`

  Sebuah string mewakili metode HTTP digunakan dalam permintaan. Ini dijamin menjadi huruf besar. Sebagai contoh:

      if request.method == "GET":
          do_something()
      elif request.method == "POST":
          do_something_else()

`HttpRequest.``encoding`

  A string representing the current encoding used to decode form submission data (or `None`, which means the `DEFAULT_CHARSET` setting is used). You can write to this attribute to change the encoding used when accessing the form data. Any subsequent attribute accesses (such as reading from `GET` or `POST`) will use the new `encoding` value. Useful if you know the form data is not in the `DEFAULT_CHARSET` encoding.

`HttpRequest.``content_type`

  Sebuah string mewakili jenis MIME dari permintaan, diuraikan dari kepala `CONTENT_TYPE`.

`HttpRequest.``content_params`

  Sebuah dictionary dari parameter kunci/nilai disertakan dalam kepala `CONTENT_TYPE`.

`HttpRequest.``GET`

  Sebuah obyek seperti-dictionary mengandung semua parameter HTTP GET diberikan. Lihat dokumentasi `QueryDict` dibawah.

`HttpRequest.``POST`

  A dictionary-like object containing all given HTTP POST parameters, providing that the request contains form data. See the `QueryDict` documentation below. If you need to access raw or non-form data posted in the request, access this through the `HttpRequest.body` attribute instead.

  It's possible that a request can come in via POST with an empty `POST` dictionary -- if, say, a form is requested via the POST HTTP method but does not include form data. Therefore, you shouldn't use `if request.POST` to check for use of the POST method; instead, use `if request.method == "POST"` (see `HttpRequest.method`).

  `POST` tidak meneyrtakan informasi unggah-berkas. Lihat `FILES`.

`HttpRequest.``COOKIES`

  Sebuah dictionary mengandung semua kue-kue. Kunci dan nilai adalah string.

`HttpRequest.``FILES`

  A dictionary-like object containing all uploaded files. Each key in `FILES` is the `name` from the `<input type="file" name="">`. Each value in `FILES` is an `UploadedFile`.

  Lihat Mengelola berkas untuk informasi lebih.

  `FILES` will only contain data if the request method was POST and the `<form>` that posted to the request had `enctype="multipart/form-data"`. Otherwise, `FILES` will be a blank dictionary-like object.

`HttpRequest.``META`

  Sebuah dictionary mengandung semua kepala HTTP tersedia. Kepala tersedia bergantung pada klien dan peladen, tetapi disini ada beberapa contoh:

  - `CONTENT_LENGTH` -- Panjang dari badan peminta (sebagai string).
  - `CONTENT_TYPE` -- Jenis MIME dari badan peminta.
  - `HTTP_ACCEPT` -- Jenis-jenis isi diterima untuk tanggapan.
  - `HTTP_ACCEPT_ENCODING` -- Penyandian yang diterima untuk tanggapan.
  - `HTTP_ACCEPT_LANGUAGE` -- Bahasa yang diterima untuk tanggapan.
  - `HTTP_HOST` -- Kepala HTTP Host dikirim oleh klien.
  - `HTTP_REFERER` -- Halaman acuan, jika ada.
  - `HTTP_USER_AGENT` -- String agen-user klien.
  - `QUERY_STRING` -- String permintaan, sebagai tunggal (tidak diurai) string.
  - `REMOTE_ADDR` -- Alamat IP dari klien.
  - `REMOTE_HOST` -- Hostname dari klien.
  - `REMOTE_USER` -- The user authenticated by the web server, if any.
  - `REQUEST_METHOD` -- Sebuah string seperti `"GET"` atau `"POST"`.
  - `SERVER_NAME` -- Hostname dari peladen.
  - `SERVER_PORT` -- Port dari peladen (sebagai string).

  With the exception of `CONTENT_LENGTH` and `CONTENT_TYPE`, as given above, any HTTP headers in the request are converted to `META` keys by converting all characters to uppercase, replacing any hyphens with underscores and adding an `HTTP_` prefix to the name. So, for example, a header called `X-Bender` would be mapped to the `META` key `HTTP_X_BENDER`.

  Note that `runserver` strips all headers with underscores in the name, so you won't see them in `META`. This prevents header-spoofing based on ambiguity between underscores and dashes both being normalizing to underscores in WSGI environment variables. It matches the behavior of web servers like Nginx and Apache 2.4+.

  `HttpRequest.headers` is a simpler way to access all HTTP-prefixed headers, plus `CONTENT_LENGTH` and `CONTENT_TYPE`.

`HttpRequest.``headers`

  A case insensitive, dict-like object that provides access to all HTTP-prefixed headers (plus `Content-Length` and `Content-Type`) from the request.

  The name of each header is stylized with title-casing (e.g. `User-Agent`) when it's displayed. You can access headers case-insensitively:

      >>> request.headers
      {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6', ...}

      >>> "User-Agent" in request.headers
      True
      >>> "user-agent" in request.headers
      True

      >>> request.headers["User-Agent"]
      Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6)
      >>> request.headers["user-agent"]
      Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6)

      >>> request.headers.get("User-Agent")
      Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6)
      >>> request.headers.get("user-agent")
      Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6)

  For use in, for example, Django templates, headers can also be looked up using underscores in place of hyphens:

      {{ request.headers.user_agent }}

`HttpRequest.``resolver_match`

  An instance of `ResolverMatch` representing the resolved URL. This attribute is only set after URL resolving took place, which means it's available in all views but not in middleware which are executed before URL resolving takes place (you can use it in `process_view()` though).

### Atribut-atribut disetel oleh kode aplikasi

Django tidak menyetel atribut ini sendiri tetapi menggunakan mereka jika disetel oleh aplikasi anda.

`HttpRequest.``current_app`

  Etiket cetakan `url` akan menggunakan nilainya sebagai argumen `current_app` pada `reverse()`.

`HttpRequest.``urlconf`

  Ini akan digunaan sebagai akar URLconf utnuk permintaan saat ini, menimpa pengaturan `ROOT_URLCONF`. Lihat Bagaimana Django mengolah permintaan untuk rincian.

  `urlconf` dapat disetel menjadi `None` untuk merubah perubahan apapun dibuat oleh middleware sebelumnya dan mengembalikannya menggunakan `ROOT_URLCONF`.

`HttpRequest.``exception_reporter_filter`

  This will be used instead of `DEFAULT_EXCEPTION_REPORTER_FILTER` for the current request. See Penyesuaian laporan kesalahan for details.

`HttpRequest.``exception_reporter_class`

  This will be used instead of `DEFAULT_EXCEPTION_REPORTER` for the current request. See Penyesuaian laporan kesalahan for details.

### Atribut-atribut disetel oleh middleware

Beberapa middleware disertakan dalam aplikasi bantuan Django menyetel atribut pada permintaan. Jika anda tidak melihat atribut pada sebuah permintaan, pastikan kelas middleware sesuai didaftarkan dalam `MIDDLEWARE`.

`HttpRequest.``session`

  Dari `SessionMiddleware`: Dapat dibaca dan ditulis, obyek seperti dictionary yang mewakili sesi saat ini.

`HttpRequest.``site`

  Dari `CurrentSiteMiddleware`: Sebuah instance dari `Site` atau `RequestSite` seperti dikembalikan oleh `get_current_site()` mewakili situs saat ini.

`HttpRequest.``user`

  From the `AuthenticationMiddleware`: An instance of `AUTH_USER_MODEL` representing the currently logged-in user. If the user isn't currently logged in, `user` will be set to an instance of `AnonymousUser`. You can tell them apart with `is_authenticated`, like so:

      if request.user.is_authenticated:
          ...  # Do something for logged-in users.
      else:
          ...  # Do something for anonymous users.

### Cara

`HttpRequest.``get_host`()

  Mengembalikan rumah asal dari permintaan menggunakan informasi dari `HTTP_X_FORWARDED_HOST` (jika `USE_X_FORWARDED_HOST` diadakan) dan kepala `HTTP_HOST`, dalam urutan itu. Jika mereka tidak menyediakan sebuah nilai, metode menggunakan sebuah perpaduan dari `SERVER_NAME` dan `SERVER_PORT` seperti dirincikan dalam PEP 3333.

  Contoh: `"127.0.0.1:8000"`

  Raises `django.core.exceptions.DisallowedHost` if the host is not in `ALLOWED_HOSTS` or the domain name is invalid according to RFC 1034/1035.

  Catatan

  Metode `get_host()` ketika rumah dibelakang banyak proxy. Satu pemecahan adalah menggunakan middleware untuk menulis kembali kepala proxy, seperti dalam contoh berikut:

      class MultipleProxyMiddleware:
          FORWARDED_FOR_FIELDS = [
              "HTTP_X_FORWARDED_FOR",
              "HTTP_X_FORWARDED_HOST",
              "HTTP_X_FORWARDED_SERVER",
          ]

          def __init__(self, get_response):
              self.get_response = get_response

          def __call__(self, request):
              """
              Rewrites the proxy headers so that only the most
              recent proxy is used.
              """
              for field in self.FORWARDED_FOR_FIELDS:
                  if field in request.META:
                      if "," in request.META[field]:
                          parts = request.META[field].split(",")
                          request.META[field] = parts[-1].strip()
              return self.get_response(request)

  Middleware ini harus ditempatkan sebelum middleware lain apapun yang bergantung pada nilai dari `get_host()` -- untuk contoh, `CommonMiddleware` atau `CsrfViewMiddleware`.

`HttpRequest.``get_port`()

  Mengembalikan port asal dari permintaan menggunakan informasi dari `HTTP_X_FORWARDED_PORT` (jika `USE_X_FORWARDED_PORT` diadakan) dan variabel `SERVER_PORT` `META`, dalam urutan itu.

`HttpRequest.``get_full_path`()

  Mengembalikan `path`, ditambah sebuah string permintaan ditambahkan, jika dapat dipakai.

  Contoh: `"/music/bands/the_beatles/?print=true"`

`HttpRequest.``get_full_path_info`()

  Seperti `get_full_path()`, tetapi menggunakan `path_info` daripada `path`.

  Contoh: `"/minfo/music/bands/the_beatles/?print=true"`

`HttpRequest.``build_absolute_uri`(location=None)

  Mengembalikan bentuk URI mutlak dari `location`. Jika tidak ada tempat disediakan, tempat akan disetel menjadi `request.get_full_path()`.

  Jika tempat adalah sudah sebuah URI mutlak, itu tidak akan diubah. Sebaliknya URI mutlak dibangun menggunakan variabel-variabel peladen dalam permintaan ini. Sebagai contoh:

      >>> request.build_absolute_uri()
      'https://example.com/music/bands/the_beatles/?print=true'
      >>> request.build_absolute_uri('/bands/')
      'https://example.com/bands/'
      >>> request.build_absolute_uri('https://example2.com/bands/')
      'https://example2.com/bands/'

  Catatan

  Mixing HTTP and HTTPS on the same site is discouraged, therefore `build_absolute_uri()` will always generate an absolute URI with the same scheme the current request has. If you need to redirect users to HTTPS, it's best to let your web server redirect all HTTP traffic to HTTPS.

`HttpRequest.``get_signed_cookie`(key, default=RAISE_ERROR, salt='', max_age=None)

  Returns a cookie value for a signed cookie, or raises a `django.core.signing.BadSignature` exception if the signature is no longer valid. If you provide the `default` argument the exception will be suppressed and that default value will be returned instead.

  The optional `salt` argument can be used to provide extra protection against brute force attacks on your secret key. If supplied, the `max_age` argument will be checked against the signed timestamp attached to the cookie value to ensure the cookie is not older than `max_age` seconds.

  Sebagai contoh:

      >>> request.get_signed_cookie("name")
      'Tony'
      >>> request.get_signed_cookie("name", salt="name-salt")
      'Tony' # assuming cookie was set using the same salt
      >>> request.get_signed_cookie("nonexistent-cookie")
      KeyError: 'nonexistent-cookie'
      >>> request.get_signed_cookie("nonexistent-cookie", False)
      False
      >>> request.get_signed_cookie("cookie-that-was-tampered-with")
      BadSignature: ...
      >>> request.get_signed_cookie("name", max_age=60)
      SignatureExpired: Signature age 1677.3839159 > 60 seconds
      >>> request.get_signed_cookie("name", False, max_age=60)
      False

  Lihat penandatangan kriptograpi untuk informasi lebih.

`HttpRequest.``is_secure`()

  Mengembalikan `True` jika permintaan adalah aman; yaitu, jika itu telah dibuat dengan HTTPS.

`HttpRequest.``accepts`(mime_type)

  Returns `True` if the request `Accept` header matches the `mime_type` argument:

      >>> request.accepts("text/html")
      True

  Most browsers send `Accept: */*` by default, so this would return `True` for all content types. Setting an explicit `Accept` header in API requests can be useful for returning a different content type for those consumers only. See Contoh negosiasi isi of using `accepts()` to return different content to API consumers.

  If a response varies depending on the content of the `Accept` header and you are using some form of caching like Django's `cache middleware`, you should decorate the view with `vary_on_headers('Accept')` so that the responses are properly cached.

`HttpRequest.``read`(size=None)

`HttpRequest.``readline`()

`HttpRequest.``readlines`()

`HttpRequest.``__iter__`()

  Methods implementing a file-like interface for reading from an `HttpRequest` instance. This makes it possible to consume an incoming request in a streaming fashion. A common use-case would be to process a big XML payload with an iterative parser without constructing a whole XML tree in memory.

  Diberikan antarmuka standar ini, sebuah instance `HttpRequest` dapat dilewatkan langsung pada sebuah pengurai XML seperti `ElementTree`:

      import xml.etree.ElementTree as ET

      for element in ET.iterparse(request):
          process(element)

## Obyek `QueryDict`

class `QueryDict`

In an `HttpRequest` object, the `GET` and `POST` attributes are instances of `django.http.QueryDict`, a dictionary-like class customized to deal with multiple values for the same key. This is necessary because some HTML form elements, notably `<select multiple>`, pass multiple values for the same key.

The `QueryDict`s at `request.POST` and `request.GET` will be immutable when accessed in a normal request/response cycle. To get a mutable version you need to use `QueryDict.copy()`.

### Cara

`QueryDict` menerapkan semua metode dictionary standar karena itu adalah subkelas dari dictionary. Pengecualian diuraikan disini:

`QueryDict.``__init__`(query_string=None, mutable=False, encoding=None)

  Memakai obyek `QueryDict` berdasarkan pada `query_string`.

      >>> QueryDict('a=1&a=2&c=3')
      <QueryDict: {'a': ['1', '2'], 'c': ['3']}>

  Jika `query_string` tidak dilewatkan, hasil `QueryDict` akan kosong (itu tidak akan memiliki kunci atau nilai).

  Most `QueryDict`s you encounter, and in particular those at `request.POST` and `request.GET`, will be immutable. If you are instantiating one yourself, you can make it mutable by passing `mutable=True` to its `__init__()`.

  Strings for setting both keys and values will be converted from `encoding` to `str`. If `encoding` is not set, it defaults to `DEFAULT_CHARSET`.

classmethod `QueryDict.``fromkeys`(iterable, value='', mutable=False, encoding=None)

  Creates a new `QueryDict` with keys from `iterable` and each value equal to `value`. For example:

      >>> QueryDict.fromkeys(["a", "a", "b"], value="val")
      <QueryDict: {'a': ['val', 'val'], 'b': ['val']}>

`QueryDict.``__getitem__`(key)

  Returns the value for the given key. If the key has more than one value, it returns the last value. Raises `django.utils.datastructures.MultiValueDictKeyError` if the key does not exist. (This is a subclass of Python's standard `KeyError`, so you can stick to catching `KeyError`.)

`QueryDict.``__setitem__`(key, value)

  Sets the given key to `[value]` (a list whose single element is `value`). Note that this, as other dictionary functions that have side effects, can only be called on a mutable `QueryDict` (such as one that was created via `QueryDict.copy()`).

`QueryDict.``__contains__`(key)

  Mengembalikan `True` jika kunci yang diberikan disetel. Ini membuat anda melakukan, misalnya `if "foo" dalam request.GET`.

`QueryDict.``get`(key, default=None)

  Menggunakan logika sama seperti `__getitem__()`, dengan kaitan untuk mengembalikan nilai awalan jika kunci tidak ada.

`QueryDict.``setdefault`(key, default=None)

  Seperti `dict.setdefault()`, kecuai itu menggunakan `__setitem__()` secara internal.

`QueryDict.``update`(other_dict)

  Takes either a `QueryDict` or a dictionary. Like `dict.update()`, except it appends to the current dictionary items rather than replacing them. For example:

      >>> q = QueryDict("a=1", mutable=True)
      >>> q.update({"a": "2"})
      >>> q.getlist("a")
      ['1', '2']
      >>> q["a"]  # returns the last
      '2'

`QueryDict.``items`()

  Like `dict.items()`, except this uses the same last-value logic as `__getitem__()` and returns an iterator object instead of a view object. For example:

      >>> q = QueryDict("a=1&a=2&a=3")
      >>> list(q.items())
      [('a', '3')]

`QueryDict.``values`()

  Like `dict.values()`, except this uses the same last-value logic as `__getitem__()` and returns an iterator instead of a view object. For example:

      >>> q = QueryDict("a=1&a=2&a=3")
      >>> list(q.values())
      ['3']

Sebagai tambahan, `QueryDict` mempunyai metode berikut:

`QueryDict.``copy`()

  Mengembalikan salinan dari obyek menggunakan `copy.deepcopy()`. Salinan ini tidak tetap bahkan jika aslinya tidak.

`QueryDict.``getlist`(key, default=None)

  Returns a list of the data with the requested key. Returns an empty list if the key doesn't exist and `default` is `None`. It's guaranteed to return a list unless the default value provided isn't a list.

`QueryDict.``setlist`(key, list_)

  Mensetel kunci diberikan pada `list_` (unlike `__setitem__()`).

`QueryDict.``appendlist`(key, item)

  Menambahkan sebuah barang pada daftar internal terkait dengan kunci.

`QueryDict.``setlistdefault`(key, default_list=None)

  Seperti `setdefault()`, kecuali itu mengambil daftar dari nilai-nilai daripada nilai tunggal.

`QueryDict.``lists`()

  Like `items()`, except it includes all values, as a list, for each member of the dictionary. For example:

      >>> q = QueryDict("a=1&a=2&a=3")
      >>> q.lists()
      [('a', ['1', '2', '3'])]

`QueryDict.``pop`(key)

  Returns a list of values for the given key and removes them from the dictionary. Raises `KeyError` if the key does not exist. For example:

      >>> q = QueryDict("a=1&a=2&a=3", mutable=True)
      >>> q.pop("a")
      ['1', '2', '3']

`QueryDict.``popitem`()

  Removes an arbitrary member of the dictionary (since there's no concept of ordering), and returns a two value tuple containing the key and a list of all values for the key. Raises `KeyError` when called on an empty dictionary. For example:

      >>> q = QueryDict("a=1&a=2&a=3", mutable=True)
      >>> q.popitem()
      ('a', ['1', '2', '3'])

`QueryDict.``dict`()

  Returns a `dict` representation of `QueryDict`. For every (key, list) pair in `QueryDict`, `dict` will have (key, item), where item is one element of the list, using the same logic as `QueryDict.__getitem__()`:

      >>> q = QueryDict("a=1&a=3&a=5")
      >>> q.dict()
      {'a': '5'}

`QueryDict.``urlencode`(safe=None)

  Returns a string of the data in query string format. For example:

      >>> q = QueryDict("a=2&b=3&b=5")
      >>> q.urlencode()
      'a=2&b=3&b=5'

  Use the `safe` parameter to pass characters which don't require encoding. For example:

      >>> q = QueryDict(mutable=True)
      >>> q["next"] = "/a&b/"
      >>> q.urlencode(safe="/")
      'next=/a%26b/'

## Obyek `HttpResponse`

class `HttpResponse`

In contrast to `HttpRequest` objects, which are created automatically by Django, `HttpResponse` objects are your responsibility. Each view you write is responsible for instantiating, populating, and returning an `HttpResponse`.

Kelas `HttpResponse` berada di modul `django.http`

### Penggunaan

#### Melewatkan string

Typical usage is to pass the contents of the page, as a string, bytestring, or `memoryview`, to the `HttpResponse` constructor:

    >>> from django.http import HttpResponse
    >>> response = HttpResponse("Here's the text of the web page.")
    >>> response = HttpResponse("Text only, please.", content_type="text/plain")
    >>> response = HttpResponse(b"Bytestrings are also accepted.")
    >>> response = HttpResponse(memoryview(b"Memoryview as well."))

But if you want to add content incrementally, you can use `response` as a file-like object:

    >>> response = HttpResponse()
    >>> response.write("<p>Here's the text of the web page.</p>")
    >>> response.write("<p>Here's another paragraph.</p>")

#### Melewatkan perulangan

Finally, you can pass `HttpResponse` an iterator rather than strings. `HttpResponse` will consume the iterator immediately, store its content as a string, and discard it. Objects with a `close()` method such as files and generators are immediately closed.

If you need the response to be streamed from the iterator to the client, you must use the `StreamingHttpResponse` class instead.

#### Mengatur bidang kepala

To set or remove a header field in your response, use `HttpResponse.headers`:

    >>> response = HttpResponse()
    >>> response.headers["Age"] = 120
    >>> del response.headers["Age"]

You can also manipulate headers by treating your response like a dictionary:

    >>> response = HttpResponse()
    >>> response["Age"] = 120
    >>> del response["Age"]

This proxies to `HttpResponse.headers`, and is the original interface offered by `HttpResponse`.

When using this interface, unlike a dictionary, `del` doesn't raise `KeyError` if the header field doesn't exist.

You can also set headers on instantiation:

    >>> response = HttpResponse(headers={"Age": 120})

For setting the `Cache-Control` and `Vary` header fields, it is recommended to use the `patch_cache_control()` and `patch_vary_headers()` methods from `django.utils.cache`, since these fields can have multiple, comma-separated values. The "patch" methods ensure that other values, e.g. added by a middleware, are not removed.

HTTP header fields cannot contain newlines. An attempt to set a header field containing a newline character (CR or LF) will raise `BadHeaderError`

#### memberitahu peramban untuk memperlakukan tanggapan sebagai sebuah berkas lampiran

To tell the browser to treat the response as a file attachment, set the `Content-Type` and `Content-Disposition` headers. For example, this is how you might return a Microsoft Excel spreadsheet:

    >>> response = HttpResponse(
    ...     my_data,
    ...     headers={
    ...         "Content-Type": "application/vnd.ms-excel",
    ...         "Content-Disposition": 'attachment; filename="foo.xls"',
    ...     },
    ... )

There's nothing Django-specific about the `Content-Disposition` header, but it's easy to forget the syntax, so we've included it here.

### Atribut

`HttpResponse.``content`

  Sebuah bytestring mewakili isi, disandikan dari string jika dibutuhkan.

`HttpResponse.``cookies`

  A `http.cookies.SimpleCookie` object holding the cookies included in the response.

`HttpResponse.``headers`

  A case insensitive, dict-like object that provides an interface to all HTTP headers on the response, except a `Set-Cookie` header. See Mengatur bidang kepala and `HttpResponse.cookies`.

`HttpResponse.``charset`

  A string denoting the charset in which the response will be encoded. If not given at `HttpResponse` instantiation time, it will be extracted from `content_type` and if that is unsuccessful, the `DEFAULT_CHARSET` setting will be used.

`HttpResponse.``status_code`

  The HTTP status code for the response.

  Unless `reason_phrase` is explicitly set, modifying the value of `status_code` outside the constructor will also modify the value of `reason_phrase`.

`HttpResponse.``reason_phrase`

  The HTTP reason phrase for the response. It uses the HTTP standard's default reason phrases.

  Meskipun secara tegas mensetel, `reason_phrase` ditentukan oleh nilai `status_code`.

`HttpResponse.``streaming`

  Ini selalu `False`.

  Atribut ini ada sehingga middleware dapat memperlakukan aliran tanggapan berbeda dari tanggapan biasanya.

`HttpResponse.``closed`

  `True` jika tanggapan telah ditutup.

### Cara

`HttpResponse.``__init__`(content=b'', content_type=None, status=200, reason=None, charset=None, headers=None)

  Instantiates an `HttpResponse` object with the given page content, content type, and headers.

  `content` is most commonly an iterator, bytestring, `memoryview`, or string. Other types will be converted to a bytestring by encoding their string representation. Iterators should return strings or bytestrings and those will be joined together to form the content of the response.

  `content_type` is the MIME type optionally completed by a character set encoding and is used to fill the HTTP `Content-Type` header. If not specified, it is formed by `'text/html'` and the `DEFAULT_CHARSET` settings, by default: `"text/html; charset=utf-8"`.

  `status` is the HTTP status code for the response. You can use Python's `http.HTTPStatus` for meaningful aliases, such as `HTTPStatus.NO_CONTENT`.

  `reason` adalah ungkapan tanggapan HTTP. Jika tidak disediakan, ungkapan awalan akan digunakan.

  `charset` is the charset in which the response will be encoded. If not given it will be extracted from `content_type`, and if that is unsuccessful, the `DEFAULT_CHARSET` setting will be used.

  `headers` is a `dict` of HTTP headers for the response.

`HttpResponse.``__setitem__`(header, value)

  Setel nama kepala diberikan pada nilai diberikan. Kedua `header` dan `value` harus berupa string.

`HttpResponse.``__delitem__`(header)

  Hapus kepala dengan nama diberikan. Gagal diam jika kepala tidak ada. kasus-tidak-peka.

`HttpResponse.``__getitem__`(header)

  Mengembalikan nilai untk nama kepala diberikan. Kasus-tidak-peka.

`HttpResponse.``get`(header, alternate=None)

  Returns the value for the given header, or an `alternate` if the header doesn't exist.

`HttpResponse.``has_header`(header)

  Mengembalikan `True` atau `False` berdasarkan pada pemeriksaan kasus-tidak-peka untuk kepala dengan nama diberikan.

`HttpResponse.``items`()

  Acts like `dict.items()` for HTTP headers on the response.

`HttpResponse.``setdefault`(header, value)

  Setel sebuah kepala meskipun itu sudah dikirim.

`HttpResponse.``set_cookie`(key, value='', max_age=None, expires=None, path='/', domain=None, secure=False, httponly=False, samesite=None)

  Setel sebuah kue. Parameter sama seperti dalam obyek kue `Morsel` dalam pustaka standar Python.

  - `max_age` should be a `timedelta` object, an integer number of seconds, or `None` (default) if the cookie should last only as long as the client's browser session. If `expires` is not specified, it will be calculated.

    Changed in Django 4.1:

    Support for `timedelta` objects was added.

  - `expires` harus salah satu berupa string dalam bentuk `"Wdy, DD-Mon-YY HH:MM:SS GMT"` atau obyek `datetime.datetime` dalam UTC. Jika `expires` adalah obyek `datetime`, `max_age` akan dihitung.

  - Gunakan``domain`` jika anda ingi mensetel kue lintas-ranah. Sebagai contoh, `domain="example.com"` akan mensetel sebuah kue yang dapat dibaca oleh ranah www.example.com, blog.example.com, dll. Sebaliknya, sebuah kue akan hanya dapat dibaca oleh ranah yang mensetel nya.

  - Use `secure=True` if you want the cookie to be only sent to the server when a request is made with the `https` scheme.

  - Gunakan `httponly=True` jika anda ingin mencegah javaScript sisi-klien dari memiliki akses ke kue.

    HttpOnly is a flag included in a Set-Cookie HTTP response header. It's part of the RFC 6265 standard for cookies and can be a useful way to mitigate the risk of a client-side script accessing the protected cookie data.

  - Use `samesite='Strict'` or `samesite='Lax'` to tell the browser not to send this cookie when performing a cross-origin request. SameSite isn't supported by all browsers, so it's not a replacement for Django's CSRF protection, but rather a defense in depth measure.

    Use `samesite='None'` (string) to explicitly state that this cookie is sent with all same-site and cross-site requests.

  Peringatan

  RFC 6265 states that user agents should support cookies of at least 4096 bytes. For many browsers this is also the maximum size. Django will not raise an exception if there's an attempt to store a cookie of more than 4096 bytes, but many browsers will not set the cookie correctly.

`HttpResponse.``set_signed_cookie`(key, value, salt='', max_age=None, expires=None, path='/', domain=None, secure=False, httponly=False, samesite=None)

  Like `set_cookie()`, but cryptographic signing the cookie before setting it. Use in conjunction with `HttpRequest.get_signed_cookie()`. You can use the optional `salt` argument for added key strength, but you will need to remember to pass it to the corresponding `HttpRequest.get_signed_cookie()` call.

`HttpResponse.``delete_cookie`(key, path='/', domain=None, samesite=None)

  Menghapus kue dengan kunci yang diberikan. Gagal secara diam jika kunci tidak ada.

  Dikarenakan cara kue bekerja, `path` dan `domain` harus berupa nilai sama anda gunakan dalam `set_cookie()` -- sebaliknya kue mungkin tidak dihapus.

`HttpResponse.``close`()

  This method is called at the end of the request directly by the WSGI server.

`HttpResponse.``write`(content)

  Metode ini membuat sebuah instance `HttpResponse` sebuah obyek seperti-berkas.

`HttpResponse.``flush`()

  Metode ini membuat sebuah instance `HttpResponse` sebuah obyek seperti-berkas.

`HttpResponse.``tell`()

  Metode ini membuat sebuah instance `HttpResponse` sebuah obyek seperti-berkas.

`HttpResponse.``getvalue`()

  Mengembalikan nilai dari `HttpResponse.content`. Metode ini membuat sebuah instance `HttpResponse` sebuah obyek seperti-aliran.

`HttpResponse.``readable`()

  Selalu `False`. Metode ini membuat sebuah instance `HttpResponse` obyek seperti-aliran.

`HttpResponse.``seekable`()

  Selalu `False`. Metode ini membuat sebuah instance `HttpResponse` obyek seperti-aliran.

`HttpResponse.``writable`()

  Selalu `True`. Metode ini membuat sebuah instance `HttpResponse` obyek seperti-aliran.

`HttpResponse.``writelines`(lines)

  Tulis sebuah baris pada tanggapan. Pemisah baris tidak ditambahkan. Metode ini membuat sebuah contoh `HttpResponse` sebuah obyek seperti-aliran.

### Subkelas `HttpResponse`

Django menyertakan sebuah angka dari subkelas-subkelas `HttpResponse` yang menangani jenis-jenis berbeda dari tanggapan HTTP. Seperti `HttpResponse`, subkelas-subkelas ini tinggal dalam `django.http`.

class `HttpResponseRedirect`

  The first argument to the constructor is required -- the path to redirect to. This can be a fully qualified URL (e.g. `'https://www.yahoo.com/search/'`), an absolute path with no domain (e.g. `'/search/'`), or even a relative path (e.g. `'search/'`). In that last case, the client browser will reconstruct the full URL itself according to the current path. See `HttpResponse` for other optional constructor arguments. Note that this returns an HTTP status code 302.

  `url`

    Ini atribut hanya-baca mewakili tanggapan URL akan mengalihkan ke (setara pada kepala tanggapan `Location`).

class `HttpResponsePermanentRedirect`

  Seperti `HttpResponseRedirect`, tetapi itu mengembalikan pengalihan tetap (kode keadaan HTTP 301) daripada pengalihan "found" (kode keadaan 302).

class `HttpResponseNotModified`

  Pembangun tidak mengambil argumen apapun dan tidak ada isi harus ditambahkan pada tanggapan ini. Gunakan ini untuk merancang bahwa sebuah halaman belum dirubah sejak permintaan terakhir pengguna (kode keadaan 304).

class `HttpResponseBadRequest`

  Bertindak seperti `HttpResponse` tetapi menggunakan kode keadaan 400.

class `HttpResponseNotFound`

  Bertindak seperti `HttpResponse` tetapi menggunakan kode keadaan 404.

class `HttpResponseForbidden`

  Bertindak seperti `HttpResponse` tetapi menggunakan kode keadaan 403.

class `HttpResponseNotAllowed`

  Seperti `HttpResponse`, tetapi menggunakan kode keadaan 405. Argumen pertama pada pembangun adalah dibutuhkan: sebuah daftar metode-metode diizinkan (misalnya `['GET', 'POST']`).

class `HttpResponseGone`

  Bertindak seperti `HttpResponse` tetapi menggunakan kode keadaan 410.

class `HttpResponseServerError`

  Bertindak seperti `HttpResponse` tetapi menggunakan kode keadaan 500.

Catatan

If a custom subclass of `HttpResponse` implements a `render` method, Django will treat it as emulating a `SimpleTemplateResponse`, and the `render` method must itself return a valid response object.

#### Custom response classes

If you find yourself needing a response class that Django doesn't provide, you can create it with the help of `http.HTTPStatus`. For example:

    from http import HTTPStatus
    from django.http import HttpResponse

    class HttpResponseNoContent(HttpResponse):
        status_code = HTTPStatus.NO_CONTENT

## Obyek `JsonResponse`

class `JsonResponse`(data, encoder=DjangoJSONEncoder, safe=True, json_dumps_params=None, **kwargs)

  An `HttpResponse` subclass that helps to create a JSON-encoded response. It inherits most behavior from its superclass with a couple differences:

  Its default `Content-Type` header is set to application/json.

  Parameter pertama, `data`, harus berupa sebuah contoh `dict`. Jika parameter `safe` disetel menjadi `False` (lihat dibawah) itu dapat berupa obyek JSON-dapat-diserialisasi apapun.

  `encoder`, yang awalan pada `django.core.serializers.json.DjangoJSONEncoder`, akan digunakan untuk menserialkan data. Lihat JSON serialization untuk rincian lebih tentang penserial ini.

  Parameter boolean `safe` awalan pada `True`. Jika itu disetel menjadi `False`, obyek apapun dapat dilewatkan untuk serialisasi (sebaliknya hanya contoh `dict` diizinkan). Jika `safe` adalah `True` dan obyek bukan-`dict` dilewatkan sebagai argumen pertama, sebuah `TypeError` akan dimunculkan.

  Parameter `json_dumps_params` adalah sebuah dictionary dari argumen kata kunci untuk dilewatkan ke panggilan `json.dumps()` digunakan untuk membangkitkan tanggapan.

### Penggunaan

Typical usage could look like:

    >>> from django.http import JsonResponse
    >>> response = JsonResponse({"foo": "bar"})
    >>> response.content
    b'{"foo": "bar"}'

#### Menserialkan obyek bukan-dictionary

In order to serialize objects other than `dict` you must set the `safe` parameter to `False`:

    >>> response = JsonResponse([1, 2, 3], safe=False)

Tanpa melewatkan `safe=False`, sebuah `TypeError` akan dimunculkan.

Note that an API based on `dict` objects is more extensible, flexible, and makes it easier to maintain forwards compatibility. Therefore, you should avoid using non-dict objects in JSON-encoded response.

Peringatan

Before the 5th edition of ECMAScript it was possible to poison the JavaScript `Array` constructor. For this reason, Django does not allow passing non-dict objects to the `JsonResponse` constructor by default. However, most modern browsers implement ECMAScript 5 which removes this attack vector. Therefore it is possible to disable this security precaution.

#### Merubah penyandi JSON awalan

If you need to use a different JSON encoder class you can pass the `encoder` parameter to the constructor method:

    >>> response = JsonResponse(data, encoder=MyJSONEncoder)

## Obyek `StreamingHttpResponse`

class `StreamingHttpResponse`

The `StreamingHttpResponse` class is used to stream a response from Django to the browser.

Advanced usage

`StreamingHttpResponse` is somewhat advanced, in that it is important to know whether you'll be serving your application synchronously under WSGI or asynchronously under ASGI, and adjust your usage appropriately.

Please read these notes with care.

An example usage of `StreamingHttpResponse` under WSGI is streaming content when generating the response would take too long or uses too much memory. For instance, it's useful for generating large CSV files.

There are performance considerations when doing this, though. Django, under WSGI, is designed for short-lived requests. Streaming responses will tie a worker process for the entire duration of the response. This may result in poor performance.

Generally speaking, you would perform expensive tasks outside of the request-response cycle, rather than resorting to a streamed response.

When serving under ASGI, however, a `StreamingHttpResponse` need not stop other requests from being served whilst waiting for I/O. This opens up the possibility of long-lived requests for streaming content and implementing patterns such as long-polling, and server-sent events.

Even under ASGI note, `StreamingHttpResponse` should only be used in situations where it is absolutely required that the whole content isn't iterated before transferring the data to the client. Because the content can't be accessed, many middleware can't function normally. For example the `ETag` and `Content-Length` headers can't be generated for streaming responses.

The `StreamingHttpResponse` is not a subclass of `HttpResponse`, because it features a slightly different API. However, it is almost identical, with the following notable differences:

- It should be given an iterator that yields bytestrings, `memoryview`, or strings as content. When serving under WSGI, this should be a sync iterator. When serving under ASGI, then it should be an async iterator.

- You cannot access its content, except by iterating the response object itself. This should only occur when the response is returned to the client: you should not iterate the response yourself.

  Under WSGI the response will be iterated synchronously. Under ASGI the response will be iterated asynchronously. (This is why the iterator type must match the protocol you're using.)

  To avoid a crash, an incorrect iterator type will be mapped to the correct type during iteration, and a warning will be raised, but in order to do this the iterator must be fully-consumed, which defeats the purpose of using a `StreamingHttpResponse` at all.

- It has no `content` attribute. Instead, it has a `streaming_content` attribute. This can be used in middleware to wrap the response iterable, but should not be consumed.

- Anda tidak dapat menggunakan obyek seperti-berkas metode `tell()` atau `write()`. Melakukan itu akan memunculkan sebuah pengecualian.

The `HttpResponseBase` base class is common between `HttpResponse` and `StreamingHttpResponse`.

Changed in Django 4.2:

Support for asynchronous iteration was added.

### Atribut

`StreamingHttpResponse.``streaming_content`

  An iterator of the response content, bytestring encoded according to `HttpResponse.charset`.

`StreamingHttpResponse.``status_code`

  The HTTP status code for the response.

  Unless `reason_phrase` is explicitly set, modifying the value of `status_code` outside the constructor will also modify the value of `reason_phrase`.

`StreamingHttpResponse.``reason_phrase`

  The HTTP reason phrase for the response. It uses the HTTP standard's default reason phrases.

  Meskipun secara tegas mensetel, `reason_phrase` ditentukan oleh nilai `status_code`.

`StreamingHttpResponse.``streaming`

  Ini selalu `True`.

`StreamingHttpResponse.``is_async`
  New in Django 4.2.

  Boolean indicating whether `StreamingHttpResponse.streaming_content` is an asynchronous iterator or not.

  This is useful for middleware needing to wrap `StreamingHttpResponse.streaming_content`.

## Obyek `FileResponse`

class `FileResponse`(open_file, as_attachment=False, filename='', **kwargs)

  `FileResponse` is a subclass of `StreamingHttpResponse` optimized for binary files. It uses wsgi.file_wrapper if provided by the wsgi server, otherwise it streams the file out in small chunks.

  If `as_attachment=True`, the `Content-Disposition` header is set to `attachment`, which asks the browser to offer the file to the user as a download. Otherwise, a `Content-Disposition` header with a value of `inline` (the browser default) will be set only if a filename is available.

  If `open_file` doesn't have a name or if the name of `open_file` isn't appropriate, provide a custom file name using the `filename` parameter. Note that if you pass a file-like object like `io.BytesIO`, it's your task to `seek()` it before passing it to `FileResponse`.

  The `Content-Length` header is automatically set when it can be guessed from the content of `open_file`.

  The `Content-Type` header is automatically set when it can be guessed from the `filename`, or the name of `open_file`.

`FileResponse` accepts any file-like object with binary content, for example a file open in binary mode like so:

    >>> from django.http import FileResponse
    >>> response = FileResponse(open("myfile.png", "rb"))

Berkas akan ditutup otomatis, jadi jangan membuka itu dengan pengelola konteks.

Use under ASGI

Python's file API is synchronous. This means that the file must be fully consumed in order to be served under ASGI.

In order to stream a file asynchronously you need to use a third-party package that provides an asynchronous file API, such as aiofiles.

### Cara

`FileResponse.``set_headers`(open_file)

  This method is automatically called during the response initialization and set various headers (`Content-Length`, `Content-Type`, and `Content-Disposition`) depending on `open_file`.

## `HttpResponseBase` class

class `HttpResponseBase`

The `HttpResponseBase` class is common to all Django responses. It should not be used to create responses directly, but it can be useful for type-checking.