Zig

Update a Google Contact

See more Google APIs Examples

Demonstrates how to update a Google Contact. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // 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

    const json_token = try chilkat.JsonObject.init();
    defer json_token.deinit();
    json_token.loadFile("qa_data/tokens/googleContacts.json") catch {
        std.debug.print("Failed to load googleContacts.json\n", .{});
        return;
    };

    const g_auth = try chilkat.AuthGoogle.init();
    defer g_auth.deinit();
    g_auth.setAccessToken(try json_token.stringOf(alloc, "access_token"));

    const rest = try chilkat.Rest.init();
    defer rest.deinit();

    // Connect using TLS.
    const b_auto_reconnect = true;
    try rest.connect("www.google.com", 443, true, b_auto_reconnect);

    // Provide the authentication credentials (i.e. the access token)
    rest.setAuthGoogle(g_auth) catch {};

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

    // To update a contact, we'll first get the contact information,
    // then we'll make changes to the XML and then PUT the update.

    // To retrieve the contact, send the following:
    //     GET /m8/feeds/contacts/default/full/{contactId}
    //     GData-Version: 3.0

    rest.addHeader("GData-Version", "3.0") catch {};

    const sb_path = try chilkat.StringBuilder.init();
    defer sb_path.deinit();
    sb_path.append("/m8/feeds/contacts/default/full/{contactId}") catch {};
    // Get the contact having contactId = "5b6d64980b1ed462"
    _ = sb_path.replace("{contactId}", "5b6d64980b1ed462");

    const sb_response_body = try chilkat.StringBuilder.init();
    defer sb_response_body.deinit();
    rest.fullRequestNoBodySb("GET", try sb_path.getAsString(alloc), sb_response_body) catch {
        std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
        return;
    };

    // A successful response will have a status code equal to 200.
    if (rest.getResponseStatusCode() != 200) {
        std.debug.print("response status code = {d}\n", .{rest.getResponseStatusCode()});
        std.debug.print("response status text = {s}\n", .{try rest.getResponseStatusText(alloc)});
        std.debug.print("response header: {s}\n", .{try rest.getResponseHeader(alloc)});
        std.debug.print("response body: {s}\n", .{try sb_response_body.getAsString(alloc)});
        return;
    }

    // If the 200 response was received, then the contacts XML is contained
    // in the response body.
    const xml = try chilkat.Xml.init();
    defer xml.deinit();
    xml.loadSb(sb_response_body, false) catch {};

    // Get the etag:
    const last_known_etag = try xml.getAttrValue(alloc, "gd:etag");
    std.debug.print("lastKnownEtag = {s}\n", .{last_known_etag});

    // Update the XML.
    // We're going to add or update with the following information:

    //       <gd:name>
    //         <gd:givenName>Joe</gd:givenName>
    //         <gd:familyName>Sample</gd:familyName>
    //         <gd:fullName>Joe Sample</gd:fullName>
    //       </gd:name>
    //       <content type="text">RIP Joe Sample, a great musician...</content>
    //       <gd:extendedProperty name="pet" value="hamster"/>

    xml.updateChildContent("gd:name|gd:givenName", "Joe");
    xml.updateChildContent("gd:name|gd:familyName", "Sample");
    xml.updateChildContent("gd:name|gd:fullName", "Joe Sample");
    xml.updateChildContent("content", "RIP Joe Sample, a great musician...");
    xml.updateAttrAt("content", true, "type", "text") catch {};
    xml.updateAttrAt("gd:extendedProperty", true, "name", "pet") catch {};
    xml.updateAttrAt("gd:extendedProperty", true, "value", "hamster") catch {};

    // Send the following:

    //     PUT /m8/feeds/contacts/default/full/{contactId}
    //     If-Match: {lastKnownEtag}
    //     GData-Version: 3.0
    //     Content-Type: application/atom+xml

    rest.clearAllHeaders() catch {};
    rest.addHeader("If-Match", last_known_etag) catch {};
    rest.addHeader("GData-Version", "3.0") catch {};
    rest.addHeader("Content-Type", "application/atom+xml") catch {};

    const sb_request_body = try chilkat.StringBuilder.init();
    defer sb_request_body.deinit();
    xml.getXmlSb(sb_request_body) catch {};

    // The sbPath already contains the correct path..
    rest.fullRequestSb("PUT", try sb_path.getAsString(alloc), sb_request_body, sb_response_body) catch {
        std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
        return;
    };

    // A successful response will have a status code equal to 200.
    if (rest.getResponseStatusCode() != 200) {
        std.debug.print("response status code = {d}\n", .{rest.getResponseStatusCode()});
        std.debug.print("response status text = {s}\n", .{try rest.getResponseStatusText(alloc)});
        std.debug.print("response header: {s}\n", .{try rest.getResponseHeader(alloc)});
        std.debug.print("response body: {s}\n", .{try sb_response_body.getAsString(alloc)});
        return;
    }

    // If the 200 response was received, then the updated contact XML is contained
    // in the response body.
    xml.loadSb(sb_response_body, false) catch {};

    std.debug.print("Response Body:\n", .{});
    std.debug.print("{s}\n", .{try xml.getXml(alloc)});
    std.debug.print("Success.\n", .{});
}