grpc/examples/objective-c/helloworld/main.m

/*
 *
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#import <UIKit/UIKit.h>
#import "AppDelegate.h"

#import <GRPCClient/GRPCCall+Tests.h>
#import <HelloWorld/Helloworld.pbrpc.h>

static NSString * const kHostAddress = @"localhost:50051";

int main(int argc, char * argv[]) {
  @autoreleasepool {
    [GRPCCall useInsecureConnectionsForHost:kHostAddress];

    HLWGreeter *client = [[HLWGreeter alloc] initWithHost:kHostAddress];

    HLWHelloRequest *request = [HLWHelloRequest message];
    request.name = @"Objective-C";

    [client sayHelloWithRequest:request handler:^(HLWHelloReply *response, NSError *error) {
      NSLog(@"%@", response.message);
    }];
    
    return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
  }
}