(Tcl) HTTP POST JSON

Demonstrates how to send a JSON POST and get the JSON response.

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load ./chilkat.dll

# This requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code

set req [new_CkHttpRequest]

set http [new_CkHttp]

# This example duplicates the HTTP POST shown at
# http://json.org/JSONRequest.html

# Specifically, the request to be sent looks like this:

# POST /request HTTP/1.1
# Accept: application/jsonrequest
# Content-Encoding: identity
# Content-Length: 72
# Content-Type: application/jsonrequest
# Host: json.penzance.org
# 
# {"user":"doctoravatar@penzance.com","forecast":7,"t":"vlIj","zip":94089}

# First, remove default header fields that would be automatically
# sent.  (These headers are harmless, and shouldn't need to 
# be suppressed, but just in case...)
CkHttp_put_AcceptCharset $http ""
CkHttp_put_UserAgent $http ""
CkHttp_put_AcceptLanguage $http ""
# Suppress the Accept-Encoding header by disallowing 
# a gzip response:
CkHttp_put_AllowGzip $http 0

# If a Cookie needs to be added, it may be added by calling
# AddQuickHeader:
set success [CkHttp_AddQuickHeader $http "Cookie" "JSESSIONID=1234"]

set jsonText "{\"user\":\"doctoravatar@penzance.com\",\"forecast\":7,\"t\":\"vlIj\",\"zip\":94089}"

# To use SSL/TLS, simply use "https://" in the URL.

# IMPORTANT: Make sure to change the URL, JSON text,
# and other data items to your own values.  The URL used
# in this example will not actually work.

# resp is a CkHttpResponse

set resp [CkHttp_PostJson $http "http://json.penzance.org/request" $jsonText]
if {[expr [CkHttp_get_LastMethodSuccess $http] != 1]} then {
    puts [CkHttp_lastErrorText $http]
} else {
    # Display the JSON response.
    puts [CkHttpResponse_bodyStr $resp]
    delete_CkHttpResponse $resp

}


delete_CkHttpRequest $req
delete_CkHttp $http