Google Developers Blog: A new Objective-C library for a new generation of APIs

A new Objective-C library for a new generation of APIs

Wednesday, August 31, 2011

Greg

Tom

By Greg Robbins and Tom Van Lenten, Software EngineersOAuth 2Google APIs Client Library for Objective-CGoogle APIs Discovery Service#import "GTLBooks.h"

GTLServiceBooks *service = [[GTLServiceBooks alloc] init];

GTLQueryBooks *query =
[GTLQueryBooks queryForVolumesListWithQ:@"Mark Twain"];
query.filter = kGTLBooksFilterFreeEbooks;

[service executeQuery:query
completionHandler:^(GTLServiceTicket *ticket,
id object, NSError *error) {
// callback
if (error == nil) {
GTLBooksVolumes *results = object;
for (GTLBooksVolume *volume in results) {
NSLog(@"%@", volume.volumeInfo.title);
}
}
}];
partial response and partial update protocolsour open-source project sitediscussion groupSince Google I/O 2010, we've been developing APIs that can provide descriptions of themselves via metadata. This new technique makes it easier to create and maintain client libraries that support more languages, work with more APIs, and are easier to use than ever before. This post announces one of several recent major milestones for our client libraries.Greg Robbins writes code to connect Mac and iOS apps to Internet services. He chases dogs in the morning, and bugs in the afternoon.

Tom Van Lenten is a Software Engineer on the Google Chrome team. He is also hooked on the Google Toolbox for Mac open source projects.Posted by Scott Knaster, Editor