Rust

Retrieve a Single Contact

See more Google APIs Examples

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

// 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 json_token = chilkat::JsonObject::new();
if json_token.load_file("qa_data/tokens/googleContacts.json").is_err() {
    println!("Failed to load googleContacts.json");
    return;
}

let g_auth = chilkat::AuthGoogle::new();
g_auth.set_access_token(&json_token.string_of("access_token").unwrap_or_default());

let rest = chilkat::Rest::new();

// Connect using TLS.
let b_auto_reconnect = true;
let _ = rest.connect("www.google.com", 443, true, b_auto_reconnect).is_ok();

// Provide the authentication credentials (i.e. the access token)
let _ = rest.set_auth_google(&g_auth);

// ----------------------------------------------
// 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

let _ = rest.add_header("GData-Version", "3.0");

let sb_path = chilkat::StringBuilder::new();
let _ = sb_path.append("/m8/feeds/contacts/default/full/{contactId}");
// Get the contact having contactId = "7b1c7b6409e718a0"
let num_replacements = sb_path.replace("{contactId}", "7b1c7b6409e718a0");

let sb_response_body = chilkat::StringBuilder::new();
if rest.full_request_no_body_sb("GET", &sb_path.get_as_string().unwrap_or_default(), &sb_response_body).is_err() {
    println!("{}", rest.last_error_text());
    return;
}

// A successful response will have a status code equal to 200.
if rest.response_status_code() != 200 {
    println!("response status code = {}", rest.response_status_code());
    println!("response status text = {}", rest.response_status_text());
    println!("response header: {}", rest.response_header());
    println!("response body: {}", sb_response_body.get_as_string().unwrap_or_default());
    return;
}

// If the 200 response was received, then the contacts XML is contained
// in the response body.
let xml = chilkat::Xml::new();
let _ = xml.load_sb(&sb_response_body, false);

// See below for a sample response body.
let _ = xml.save_xml("qa_output/google_contact.xml");

// Now let's parse the XML...
println!("title: {}", xml.get_child_content("title").unwrap_or_default());

if let Ok(email_address) = xml.chilkat_path("gd:email|(address)") {
    println!("email address: {}", email_address);
}

// 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>