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What are callbacks?

A callback is just a way to store some things to do at a later time.

A callback function is called at the completion of a given task.

The callback takes two arguments, resolve and reject , which are both functions. All your asynchronous code goes inside that callback. If everything is successful, the promise is fulfilled by calling resolve() . In case of an error, reject() is called with an Error object.


A promise is an object which can be returned synchronously from an asynchronous function. It will be in one of 3 possible states:
Fulfilled: onFulfilled() will be called (e.g., resolve() was called)
Rejected: onRejected() will be called (e.g., reject() was called)
Pending: not yet fulfilled or rejected

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Configuring IIS 7.5 to send XML/JSON responses gzipped
-------------------------------------------------------------------------------


call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/serverRuntime /frequentHitThreshold:"1"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/urlCompression /doDynamicCompression:"True"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"dynamicTypes.[mimeType='application/json']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/json',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"dynamicTypes.[mimeType='application/json; charset=utf-8']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/json; charset=utf-8',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"dynamicTypes.[mimeType='application/javascript']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/javascript',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"dynamicTypes.[mimeType='application/x-javascript']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/x-javascript',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"dynamicTypes.[mimeType='application/x-javascript; charset=utf-8']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/x-javascript; charset=utf-8',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"dynamicTypes.[mimeType='*/*']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='*/*',enabled='False']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"staticTypes.[mimeType='application/javascript']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"staticTypes.[mimeType='application/javascript',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"staticTypes.[mimeType='application/x-javascript']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"staticTypes.[mimeType='application/x-javascript',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"staticTypes.[mimeType='application/x-javascript; charset=utf-8']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"staticTypes.[mimeType='application/x-javascript; charset=utf-8',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"staticTypes.[mimeType='*/*']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"staticTypes.[mimeType='*/*',enabled='False']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /noCompressionForHttp10:"False" /noCompressionForProxies:"False" /minFileSizeForComp:"2700"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/json',enabled='True']" /commit:apphost
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/atom%u002bxml',enabled='True']" /commit:apphost
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/atom%u002bxml;charset=utf-8',enabled='True']" /commit:apphost

------------------------------------

IIS setting

configuration => system.webServer/httpCompression 

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In Request Header :

User-Agent: Fiddler
Content-Type: application/xml
Accet-Encoding: gzip,deflate
Host: 192.168.0.11:82
Content-Length: 577

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