(Objective-C) SQS Send Message

Note: This example requires a patch to work properly. It requires Chilkat v9.5.0.61, which can be obtained upon request to support@chilkatsoft.com

Delivers a message to the specified queue. With Amazon SQS, you now have the ability to send large payload messages that are up to 256KB (262,144 bytes) in size.

See SQS SendMessage or detailed information.

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#import <CkoRest.h>
#import <CkoAuthAws.h>
#import <NSString.h>
#import <CkoXml.h>

// Note: This example requires a patch to work properly.  
// It requires Chilkat v9.5.0.61, which can be obtained upon request to support@chilkatsoft.com

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoRest *rest = [[CkoRest alloc] init];

// Connect to the Amazon AWS REST server.
// such as https://sqs.us-west-2.amazonaws.com/
BOOL bTls = YES;
int port = 443;
BOOL bAutoReconnect = YES;
BOOL success = [rest Connect: @"sqs.us-west-2.amazonaws.com" port: [NSNumber numberWithInt: port] tls: bTls autoReconnect: bAutoReconnect];

// Provide AWS credentials for the REST call.
CkoAuthAws *authAws = [[CkoAuthAws alloc] init];
authAws.AccessKey = @"AWS_ACCESS_KEY";
authAws.SecretKey = @"AWS_SECRET_KEY";
// the region should match our URL above..
authAws.Region = @"us-west-2";
authAws.ServiceName = @"sqs";

[rest SetAuthAws: authAws];

[rest AddQueryParam: @"Action" value: @"SendMessage"];
[rest AddQueryParam: @"MessageBody" value: @"This is the message body which can be up to 256K in size."];
[rest AddQueryParam: @"MessageAttribute.1.Name" value: @"test_attribute_name_1"];
[rest AddQueryParam: @"MessageAttribute.1.Value.StringValue" value: @"test_attribute_value_1"];
[rest AddQueryParam: @"MessageAttribute.1.Value.DataType" value: @"String"];
[rest AddQueryParam: @"MessageAttribute.2.Name" value: @"test_attribute_name_2"];
[rest AddQueryParam: @"MessageAttribute.2.Value.StringValue" value: @"test_attribute_value_2"];
[rest AddQueryParam: @"MessageAttribute.2.Value.DataType" value: @"String"];

// Use the actual path part of your SQS queue URL here:
NSString *responseXml = [rest FullRequestFormUrlEncoded: @"POST" uriPath: @"/123456789123/chilkatTest"];
if (rest.LastMethodSuccess != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

CkoXml *xml = [[CkoXml alloc] init];

// A successful response will have a status code equal to 200.
if ([rest.ResponseStatusCode intValue] != 200) {
    NSLog(@"%@%@",@"request header = ",rest.LastRequestHeader);
    NSLog(@"%@%d",@"response status code = ",[rest.ResponseStatusCode intValue]);
    NSLog(@"%@%@",@"response status text = ",rest.ResponseStatusText);
    NSLog(@"%@%@",@"response header: ",rest.ResponseHeader);
    [xml LoadXml: responseXml];
    NSLog(@"%@",[xml GetXml]);
    return;
}

// Examine the successful XML response.
[xml LoadXml: responseXml];
NSLog(@"%@",[xml GetXml]);
NSLog(@"%@",@"----");

// A successful response looks like this:
// <?xml version="1.0" encoding="utf-8" ?>
// <SendMessageResponse>
//     <SendMessageResult>
//         <MD5OfMessageBody>
//             fafb00f5732ab283681e124bf8747ed1
//         </MD5OfMessageBody>
//         <MD5OfMessageAttributes>
// 	    3ae8f24a165a8cedc005670c81a27295
//         </MD5OfMessageAttributes>
//         <MessageId>
//             5fea7756-0ea4-451a-a703-a558b933e274
//         </MessageId>
//     </SendMessageResult>
//     <ResponseMetadata>
//         <RequestId>
//             27daac76-34dd-47df-bd01-1f6e873584a0
//         </RequestId>
//     </ResponseMetadata>
// </SendMessageResponse>

// Get some values from the response XML:
NSLog(@"%@%@",@"Body: ",[xml ChilkatPath: @"SendMessageResult|MD5OfMessageBody|*"]);
NSLog(@"%@%@",@"MessageId: ",[xml ChilkatPath: @"SendMessageResult|MessageId|*"]);
NSLog(@"%@%@",@"RequestId: ",[xml ChilkatPath: @"ResponseMetadata|RequestId|*"]);