Questions tagged [content-type]

The Content-Type entity-header field indicates the media type of the entity-body sent to the recipient or, in the case of the HEAD method, the media type that would have been sent had the request been a GET.

The Content-Type entity-header field indicates the media type (or MIME type) of the entity-body sent to the recipient or, in the case of the HEAD method, the media type that would have been sent had the request been a GET.

Content-Type   = "Content-Type" ":" media-type

An example of the field for HTML documents is:

Content-Type: text/html; charset=ISO-8859-4

For a PNG file, it would be:

Content-Type: image/png


HTTP Specification : Section 14 : Header Field Definitions

Wikipedia articles:

  1. MIME
  2. Internet media type
2349 questions
39 answers

Which JSON content type do I use?

There are many "standards" for the JSON content type: application/json application/x-javascript text/javascript text/x-javascript text/x-json Which one do I use, and where? I assume security and browser support issues are a factor. Related: What…
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Proper MIME media type for PDF files

When working with PDFs, I've run across the MIME types application/pdf and application/x-pdf among others. Is there a difference between these two types, and if so what is it? Is one preferred over the other? I'm working on a web app which must…
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How to set the Content-Type header for an HttpClient request?

I'm trying to set the Content-Type header of an HttpClient object as required by an API I am calling. I tried setting the Content-Type like below: using (var httpClient = new HttpClient()) { httpClient.BaseAddress = new…
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HTML Input="file" Accept Attribute File Type (CSV)

I have a file upload object on my page: with the following excel files on my desktop: file1.xlsx file1.xls file.csv I want the file upload to ONLY show .xlsx, .xls, & .csv files. Using the accept attribute,…
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What MIME type should I use for CSV?

I've seen application/csv used and also text/csv. Is there a difference? Does it matter which as long as the request matches something that's available? Are they interchangeable?
Steve Dunn
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4 answers

What are all the possible values for HTTP "Content-Type" header?

I have to validate the Content-Type header value before passing it to an HTTP request. Is there a specific list for all the possible values of Content-Type? Otherwise, is there a way to validate the content type before using it in an HTTP request?
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6 answers

Setting mime type for excel document

MS Excel has the following observed MIME types: application/…
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17 answers

Jquery - How to make $.post() use contentType=application/json?

I've noticed that when using $.post() in jquery that the default contentType is application/x-www-form-urlencoded - when my mvc code needs to have contentType=application/json (See this question for why I must use application/json: ASPNET…
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Difference between application/x-javascript and text/javascript content types

What is the difference between these headers? Content-Type: application/javascript Content-Type: application/x-javascript Content-Type: text/javascript Which one is best and why? Please do not say they are identical - if they were identical there…
Obmerk Kronen
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What are the differences between application/json and application/x-www-form-urlencoded?

What is the difference between request.ContentType = "application/json; charset=utf-8"; and webRequest.ContentType = "application/x-www-form-urlencoded";
Prithvi Raj Nandiwal
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Do I need a content-type header for HTTP GET requests?

As far as I understood there are two places where to set the content type: The client sets a content type for the body he is sending to the server (e.g. for post) The server sets a content type for the response. Does this mean I don't have to or…
Martin Flucka
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Where's my JSON data in my incoming Django request?

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__',…
7 answers

Create request with POST, which response codes 200 or 201 and content

Suppose I write a REST service whose intent is to add a new data item to a system. I plan to POST to http://myhost/serviceX/someResources Suppose that works, what response code should I use? And what content might I return. I'm looking at the…
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Mail multipart/alternative vs multipart/mixed

When creating email messages you are supposed to set the Content-Type to multipart/alternative when sending HTML and TEXT or multipart/mixed when sending TEXT and attachments. So what do you do if you want to send HTML, Text, and attachments? Use…
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Content-Type header [application/x-www-form-urlencoded] is not supported on Elasticsearch

I used to have ElasticSearch 5.2, and just upgraded to 6.0. I am trying to create an index template following guide here, but got error Content-Type header [application/x-www-form-urlencoded] is not supported My query is curl -X PUT…
Barry Leishman
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