How to allow download of json file with ASP NET

Question

How can I enable the download of   json files from an old ASP NET site  IIS6 I am led to believe    I am getting a 404 page instead of the JSON file   Do I need to create a web config file  What goes in it

User · Answer

When adding support for mimetype  as suggested by  ProVega  then it is also best practice to remove the type before adding it - this is to prevent unexpected errors when deploying to servers where support for the type already exists  for example    lt staticContent gt       lt remove fileExtension   json    gt       lt mimeMap fileExtension   json  mimeType  application json    gt   lt  staticContent gt

User · Answer

Solution is you need to add json file extension type in MIME Types Method 1 Go to IIS  Select your application and Find MIME Types  Click on Add from Right panel File Name Extension    json MIME Type   application json  After adding  json file type in MIME Types  Restart IIS and try to access json file  Method 2 Go to web config of that application and add this lines in it   lt system webServer gt      lt staticContent gt        lt mimeMap fileExtension  quot  json quot  mimeType  quot application json quot    gt      lt  staticContent gt    lt  system webServer gt

User · Answer

Add the JSON MIME type to IIS 6  Follow the directions at MSDN s Configure MIME Types  IIS 6 0     Extension   json MIME type  application json   Don t forget to restart IIS after the change   UPDATE  There are easy ways to do this on IIS7 and newer  The op specifically asked for IIS6 help so I m leaving this answer as-is  But this answer is still getting a lot of traffic even though IIS6 is very old now  Hopefully you re using something newer  so I wanted to mention that if you have a newer IIS7 or newer version see  ProVega s answer below for a simpler solution for those newer versions

User · Answer

Navigate to C  Users username Documents IISExpress config Open applicationhost config with Visual Studio or your favorite text-editor  Search for the word mimeMap  you should find lots of  em  Add the following line to the top of the list

User · Answer

Just had this issue but had to find the config for IIS Express so I could add the mime types  For me  it was located at C  Users  lt username gt  Documents IISExpress config applicationhost config and I was able to add in the correct  mime map  there

User · Answer

If you want to manually add support to your site  you can just add the following to your web config in the system webServer section    lt staticContent gt       lt mimeMap fileExtension   json  mimeType  application json    gt   lt  staticContent gt    This will add a  local  configuration under IIS  This does not work in IIS6  but does work in IIS7 and newer

[asp.net] How to allow download of .json file with ASP.NET

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