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Swift 3/4 Examples

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(Swift 3/4) Google Contacts - Retrieve All Contacts

Demonstrates how to retrieve the full list of contacts 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.string(of: "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 contacts, we need to send the following:

    //  	GET /m8/feeds/contacts/default/full
    //  	GData-Version: 3.0

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

    let sbResponseBody = CkoStringBuilder()!
    success = rest.fullRequestNoBodySb("GET", uriPath: "/m8/feeds/contacts/default/full", 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.save("qa_output/google_contacts.xml")

    //  Now let's parse the XML...

    //  Get the the total number of results, the start index, and the items per page.
    //  We'll likely NOT get the full list, but will instead get the 1st page.
    var totalResults: Int = xml.getChildIntValue("openSearch:totalResults").intValue
    var startIndex: Int = xml.getChildIntValue("openSearch:startIndex").intValue
    var itemsPerPage: Int = xml.getChildIntValue("openSearch:itemsPerPage").intValue
    print("totalResults = \(totalResults)")
    print("startIndex = \(startIndex)")
    print("itemsPerPage = \(itemsPerPage)")

    //  We'll borrow a method from FileAccess to get the contactId from the URL string (see the code in the while loop)
    let fac = CkoFileAccess()!

    //  Iterate over each contact.
    var numEntries: Int = xml.numChildrenHavingTag("entry").intValue
    var i: Int = 0
    while i < numEntries {
        xml.i = i
        print("\(i + 1) ----")
        print("title: \(xml.getChildContent("entry[i]|title")!)")

        //  The entry "id" child contains a URL having this format:
        //  <id>http://www.google.com/m8/feeds/contacts/{userEmail}/base/{contactId}</id>
        //  Let's get the URL and parse the contactId from it..
        var idUrl: String? = xml.getChildContent("entry[i]|id")
        print("id: \(idUrl!!)")

        //  Use the parsing ability of GetFileName to get the contactId
        var contactId: String? = fac.getFileName(idUrl)
        print("contactId: \(contactId!!)")

        var fullName: String? = xml.chilkatPath("entry[i]|gd:name|gd:fullName|*")
        if xml.lastMethodSuccess == true {
            print("fullName: \(fullName!!)")
        }

        var emailAddress: String? = xml.chilkatPath("entry[i]|gd:email|(address)")
        if xml.lastMethodSuccess == true {
            print("email address: \(emailAddress!!)")
        }

        i = i + 1
    }

    //  The response body XML looks something like this:

    //  	<feed xmlns="http://www.w3.org/2005/Atom"
    //  	    xmlns:openSearch="http://a9.com/-/spec/opensearch/1.1/"
    //  	    xmlns:gContact="http://schemas.google.com/contact/2008"
    //  	    xmlns:batch="http://schemas.google.com/gdata/batch"
    //  	    xmlns:gd="http://schemas.google.com/g/2005"
    //  	    gd:etag="feedEtag">
    //  	  <id>userEmail</id>
    //  	  <updated>2008-12-10T10:04:15.446Z</updated>
    //  	  <category scheme="http://schemas.google.com/g/2005#kind" term="http://schemas.google.com/contact/2008#contact"/>
    //  	  <link rel="http://schemas.google.com/g/2005#feed" type="application/atom+xml"
    //  	      href="https://www.google.com/m8/feeds/contacts/userEmail/full"/>
    //  	  <link rel="http://schemas.google.com/g/2005#post" type="application/atom+xml"
    //  	      href="https://www.google.com/m8/feeds/contacts/userEmail/full"/>
    //  	  <link rel="http://schemas.google.com/g/2005#batch" type="application/atom+xml"
    //  	      href="https://www.google.com/m8/feeds/contacts/userEmail/full/batch"/>
    //  	  <link rel="self" type="application/atom+xml"
    //  	      href="https://www.google.com/m8/feeds/contacts/userEmail/full?max-results=25"/>
    //  	  <author>
    //  	    <name>User</name>
    //  	    <email>userEmail</email>
    //  	  </author>
    //  	  <generator version="1.0" uri="http://www.google.com/m8/feeds">
    //  	    Contacts
    //  	  </generator>
    //  	  <openSearch:totalResults>349</openSearch:totalResults>
    //  	  <openSearch:startIndex>1</openSearch:startIndex>
    //  	  <openSearch:itemsPerPage>25</openSearch:itemsPerPage>
    //  	  <entry gd:etag="contactEtag">
    //  	    <id>
    //  	      http://www.google.com/m8/feeds/contacts/userEmail/base/contactId
    //  	    </id>
    //  	    <updated>2008-12-10T04:45:03.331Z</updated>
    //  	    <app:edited xmlns:app="http://www.w3.org/2007/app">2008-12-10T04:45:03.331Z</app:edited>
    //  	    <category scheme="http://schemas.google.com/g/2005#kind"
    //  	        term="http://schemas.google.com/contact/2008#contact"/>
    //  	    <title>Fitzwilliam Darcy</title>
    //  	    <gd:name>
    //  	      <gd:fullName>Fitzwilliam Darcy</gd:fullName>
    //  	    </gd:name>
    //  	    <link rel="http://schemas.google.com/contacts/2008/rel#photo" type="image/*"
    //  	        href="https://www.google.com/m8/feeds/photos/media/userEmail/contactId"
    //  	        gd:etag="photoEtag"/>
    //  	    <link rel="self" type="application/atom+xml"
    //  	        href="https://www.google.com/m8/feeds/contacts/userEmail/full/contactId"/>
    //  	    <link rel="edit" type="application/atom+xml"
    //  	        href="https://www.google.com/m8/feeds/contacts/userEmail/full/contactId"/>
    //  	    <gd:phoneNumber rel="http://schemas.google.com/g/2005#home"
    //  	        primary="true">
    //  	      456
    //  	    </gd:phoneNumber>
    //  	    <gd:extendedProperty name="pet" value="hamster"/>
    //  	    <gContact:groupMembershipInfo deleted="false"
    //  	        href="http://www.google.com/m8/feeds/groups/userEmail/base/groupId"/>
    //          <gd:email rel="http://schemas.google.com/g/2005#other" address="darcyf@example.com" primary="true" />
    //  	  </entry>
    //  	  <!-- Other entries ... -->
    //  	</feed>
    // 

}

 

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