(Tcl) Retrieve a Single Contact

Demonstrates how to retrieve a single contact (by contactId) for the Google Contacts API.

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load ./chilkat.dll

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

# --------------------------------------------------------------------------------------------------------
# Note: The code for setting up the Chilkat REST object and making the initial connection can be done once.
# Once connected, the REST object may be re-used for many REST API calls.
# (It's a good idea to put the connection setup code in a separate function/subroutine.)
# --------------------------------------------------------------------------------------------------------

# It is assumed we previously obtained an OAuth2 access token.
# This example loads the JSON access token file 
# saved by this example: Get Google Contacts OAuth2 Access Token

set jsonToken [new_CkJsonObject]

set success [CkJsonObject_LoadFile $jsonToken "qa_data/tokens/googleContacts.json"]
if {$success != 1} then {
    puts "Failed to load googleContacts.json"
    delete_CkJsonObject $jsonToken
    exit
}

set gAuth [new_CkAuthGoogle]

CkAuthGoogle_put_AccessToken $gAuth [CkJsonObject_stringOf $jsonToken "access_token"]

set rest [new_CkRest]

# Connect using TLS.
set bAutoReconnect 1
set success [CkRest_Connect $rest "www.google.com" 443 1 $bAutoReconnect]

# Provide the authentication credentials (i.e. the access token)
CkRest_SetAuthGoogle $rest $gAuth

# ----------------------------------------------
# OK, the REST connection setup is completed..
# ----------------------------------------------

# To retrieve the contact, send the following:

# 	GET /m8/feeds/contacts/default/full/{contactId}
# 	GData-Version: 3.0

CkRest_AddHeader $rest "GData-Version" "3.0"

set sbPath [new_CkStringBuilder]

CkStringBuilder_Append $sbPath "/m8/feeds/contacts/default/full/{contactId}"
# Get the contact having contactId = "7b1c7b6409e718a0"
set numReplacements [CkStringBuilder_Replace $sbPath "{contactId}" "7b1c7b6409e718a0"]

set sbResponseBody [new_CkStringBuilder]

set success [CkRest_FullRequestNoBodySb $rest "GET" [CkStringBuilder_getAsString $sbPath] $sbResponseBody]
if {$success != 1} then {
    puts [CkRest_lastErrorText $rest]
    delete_CkJsonObject $jsonToken
    delete_CkAuthGoogle $gAuth
    delete_CkRest $rest
    delete_CkStringBuilder $sbPath
    delete_CkStringBuilder $sbResponseBody
    exit
}

# A successful response will have a status code equal to 200.
if {[CkRest_get_ResponseStatusCode $rest] != 200} then {
    puts "response status code = [CkRest_get_ResponseStatusCode $rest]"
    puts "response status text = [CkRest_responseStatusText $rest]"
    puts "response header: [CkRest_responseHeader $rest]"
    puts "response body: [CkStringBuilder_getAsString $sbResponseBody]"
    delete_CkJsonObject $jsonToken
    delete_CkAuthGoogle $gAuth
    delete_CkRest $rest
    delete_CkStringBuilder $sbPath
    delete_CkStringBuilder $sbResponseBody
    exit
}

# If the 200 response was received, then the contacts XML is contained
# in the response body.
set xml [new_CkXml]

CkXml_LoadSb $xml $sbResponseBody 0

# See below for a sample response body.
CkXml_SaveXml $xml "qa_output/google_contact.xml"

# Now let's parse the XML...
puts "title: [CkXml_getChildContent $xml title]"

set emailAddress [CkXml_chilkatPath $xml "gd:email|(address)"]
if {[CkXml_get_LastMethodSuccess $xml] == 1} then {
    puts "email address: $emailAddress"
}

# The response body XML looks something like this:

# 	<?xml version="1.0" encoding="UTF-8" ?>
# 	<entry gd:etag="&quot;R3kzezVSLit7I2A9XRFaFE8DQAU.&quot;" xmlns="http://www.w3.org/2005/Atom" xmlns:batch="http://schemas.google.com/gdata/batch" xmlns:gContact="http://schemas.google.com/contact/2008" xmlns:gd="http://schemas.google.com/g/2005">
# 	    <id>http://www.google.com/m8/feeds/contacts/support%40chilkatcloud.com/base/7b1c7b6409e718a0</id>
# 	    <updated>2016-11-18T00:41:56.783Z</updated>
# 	    <app:edited xmlns:app="http://www.w3.org/2007/app">2016-11-18T00:41:56.783Z</app:edited>
# 	    <category scheme="http://schemas.google.com/g/2005#kind" term="http://schemas.google.com/contact/2008#contact" />
# 	    <title>Chilkat Cloud</title>
# 	    <link rel="http://schemas.google.com/contacts/2008/rel#photo" type="image/*" href="https://www.googleapis.com/m8/feeds/photos/media/support%40chilkatcloud.com/7b1c7b6409e718a0" gd:etag="&quot;fgVhPls4Sit7I2BWHUlTWkQMKHUZKHkkaiw.&quot;" />
# 	    <link rel="self" type="application/atom+xml" href="https://www.googleapis.com/m8/feeds/contacts/support%40chilkatcloud.com/full/7b1c7b6409e718a0" />
# 	    <link rel="edit" type="application/atom+xml" href="https://www.googleapis.com/m8/feeds/contacts/support%40chilkatcloud.com/full/7b1c7b6409e718a0" />
# 	    <gd:name>
# 	        <gd:fullName>Chilkat Cloud</gd:fullName>
# 	        <gd:givenName>Chilkat</gd:givenName>
# 	        <gd:familyName>Cloud</gd:familyName>
# 	    </gd:name>
# 	    <gd:email rel="http://schemas.google.com/g/2005#other" address="support@chilkatcloud.com" primary="true" />
# 	    <gContact:groupMembershipInfo deleted="false" href="http://www.google.com/m8/feeds/groups/support%40chilkatcloud.com/base/6" />
# 	</entry>

delete_CkJsonObject $jsonToken
delete_CkAuthGoogle $gAuth
delete_CkRest $rest
delete_CkStringBuilder $sbPath
delete_CkStringBuilder $sbResponseBody
delete_CkXml $xml