(Swift 2) Retrieve a Single Contact

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

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // 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

    let jsonToken = CkoJsonObject()
    var success: Bool = jsonToken.LoadFile("qa_data/tokens/googleContacts.json")
    if success != true {
        print("Failed to load googleContacts.json")
        return
    }

    let gAuth = CkoAuthGoogle()
    gAuth.AccessToken = jsonToken.StringOf("access_token")

    let rest = CkoRest()

    // Connect using TLS.
    var bAutoReconnect: Bool = true
    success = rest.Connect("www.google.com", port: 443, tls: true, autoReconnect: bAutoReconnect)

    // Provide the authentication credentials (i.e. the access token)
    rest.SetAuthGoogle(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

    rest.AddHeader("GData-Version", value: "3.0")

    let sbPath = CkoStringBuilder()
    sbPath.Append("/m8/feeds/contacts/default/full/{contactId}")
    // Get the contact having contactId = "7b1c7b6409e718a0"
    var numReplacements: Int = sbPath.Replace("{contactId}", replacement: "7b1c7b6409e718a0").intValue

    let sbResponseBody = CkoStringBuilder()
    success = rest.FullRequestNoBodySb("GET", uriPath: sbPath.GetAsString(), sb: sbResponseBody)
    if success != true {
        print("\(rest.LastErrorText)")
        return
    }

    // A successful response will have a status code equal to 200.
    if rest.ResponseStatusCode.intValue != 200 {
        print("response status code = \(rest.ResponseStatusCode.intValue)")
        print("response status text = \(rest.ResponseStatusText)")
        print("response header: \(rest.ResponseHeader)")
        print("response body: \(sbResponseBody.GetAsString())")
        return
    }

    // If the 200 response was received, then the contacts XML is contained
    // in the response body.
    let xml = CkoXml()
    xml.LoadSb(sbResponseBody, autoTrim: false)

    // See below for a sample response body.
    xml.SaveXml("qa_output/google_contact.xml")

    // Now let's parse the XML...
    print("title: \(xml.GetChildContent("title"))")

    var emailAddress: String? = xml.ChilkatPath("gd:email|(address)")
    if xml.LastMethodSuccess == true {
        print("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>

}