（客服云）iOS访客端获取机器人欢迎语

注意：
0、代码中有两个拼接的url显示不全，我在评论有补充。
1、此文档只支持获取单机器人的欢迎语，多机器人会获取第一个机器人的欢迎语。
2、此文档暂不支持获取多媒体和图文消息类型的机器人欢迎语。
3、老版机器人与新版机器人集成方法不同，集成前需区分好。




 
一、先到客服系统配置机器人欢迎语
1、老版机器人设置方案：
管理员模式--智能机器人--机器人设置--自动回复--欢迎语，开启开关并添加欢迎语


2、新版（企业版）机器人设置方案：
（1）管理员模式--智能机器人--机器人设置--基础设置，点击“机器人管理”跳转到机器人管理页面
（2）机器人设置--自动回复--欢迎语，开启开关并添加欢迎语


 
二、iOS端获取、解析机器人欢迎语
在HDMessageViewController.m类的 -(void)viewDidLoad 方法最后调用robotWelcome或者newRobotWelcome 方法即可。其余客户端插入消息的逻辑自行处理

//获取老版机器人欢迎语

- (void)robotWelcome

{
// kDefaultTenantId：租户id
// kDefaultCustomerName：IM服务号 
NSString *urlStr = [NSString stringWithFormat:@"https://kefu.easemob.com/v1/Tenants/%@/robots/visitor/greetings/app", kDefaultTenantId];
NSString *newStr = [urlStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *url = [NSURL URLWithString:newStr];
NSURLRequest *requst = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:10];
//异步链接(形式1,较少用)
[NSURLConnection sendAsynchronousRequest:requst queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {

// 解析
NSString *result  =[[ NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
//同样的可以替换字符
NSLog(@"result-----%@", result);
NSString *str = [result stringByReplacingOccurrencesOfString:@""" withString:@"\""];
NSString *str1 = [str stringByReplacingOccurrencesOfString:@"\"{" withString:@"{"];
NSString *str2 = [str1 stringByReplacingOccurrencesOfString:@"}\"" withString:@"}"];
// JSON字符串转字典
NSDictionary *dic = [self dictionaryWithJsonString:str2];
// 取消息的ext
NSLog(@"dic---%@",dic);

NSString *robotText = nil;
NSDictionary *dicExt = [NSDictionary dictionary];
if ([[dic objectForKey:@"greetingText"] isKindOfClass:[NSString class]]) {


            robotText = [dic objectForKey:@"greetingText"];

        } else {

             dicExt = [[dic objectForKey:@"greetingText"] objectForKey:@"ext"];

        }

//构建消息

        EMTextMessageBody *bdy = [[EMTextMessageBody alloc] initWithText:robotText];
NSString *from = [[HDClient sharedClient] currentUsername];

        HDMessage *message = [[HDMessage alloc] initWithConversationID:kDefaultCustomerName from:from to:kDefaultCustomerName body:bdy];

        message.ext = dicExt;

        message.direction = 1;                

	    message.status = HDMessageStatusSuccessed;
// 消息添加到UI
[self addMessageToDataSource:message progress:nil];
// 消息插入到会话

        HDError *pError;
[self.conversation addMessage:message error:&pError];

    }];

}

//获取新版(企业版)机器人欢迎语

- (void)newRobotWelcome

{
[[HDClient sharedClient] accessToken];
// 以下信息换成自己的
// kDefaultTenantId：租户id
// kDefaultOrgName：appkey中#的前半部分
// kDefaultAppName：appkey中#的后半部分
// kDefaultCustomerName：IM服务号
NSString *imToken = [HDClient sharedClient].accessToken;
NSString *urlStr = [NSString stringWithFormat:@"https://kefu.easemob.com/v1/webimplugin/tenants/robots/welcome?channelType=easemob&originType=app&tenantId=%@&orgName=%@&appName=%@&userName=%@&token=%@",kDefaultTenantId, kDefaultOrgName, kDefaultAppName, kDefaultCustomerName, imToken];
NSString *newStr = [urlStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(@"newStr---%@", newStr);
NSURL *url = [NSURL URLWithString:newStr];
NSURLRequest *requst = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:10];
//异步链接(形式1,较少用)
[NSURLConnection sendAsynchronousRequest:requst queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
// 解析
NSString *result = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
//同样的可以替换字符

        NSString *str = [result stringByReplacingOccurrencesOfString:@"&" withString:@"&"];

NSString *str1 = [str stringByReplacingOccurrencesOfString:@""" withString:@"\""];

NSString *str2 = [str1 stringByReplacingOccurrencesOfString:@"\"{" withString:@"{"];

NSString *str3 = [str2 stringByReplacingOccurrencesOfString:@"}\"" withString:@"}"];

// JSON字符串转字典
NSDictionary *dic = [self dictionaryWithJsonString:str3];
// 取消息的ext
NSString *robotText = nil;
NSDictionary *dicExt = [NSDictionary dictionary];
if ([[[dic objectForKey:@"entity"] objectForKey:@"greetingText"] isKindOfClass:[NSString class]]) {
robotText = [[dic objectForKey:@"entity"] objectForKey:@"greetingText"];
} else {
dicExt = [[[dic objectForKey:@"entity"] objectForKey:@"greetingText"] objectForKey:@"ext"];
}
//构建消息
NSLog(@"dicExt---%@",dicExt);
EMTextMessageBody *bdy = [[EMTextMessageBody alloc] initWithText:robotText];
NSString *from = [[HDClient sharedClient] currentUsername];

HDMessage *message = [[HDMessage alloc] initWithConversationID:kDefaultCustomerName from:from to:kDefaultCustomerName body:bdy];
message.ext = dicExt;
message.direction = 1;
message.status = HDMessageStatusSuccessed;
// 消息添加到UI
[self addMessageToDataSource:message progress:nil];
// 消息插入到会话
HDError *pError;
[self.conversation addMessage:message error:&pError];
}];
}

// JSON字符串转化为字典

- (NSDictionary *)dictionaryWithJsonString:(NSString *)jsonString

{
if (jsonString == nil) {
return nil;

    }
NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSError *err;
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData

                                                        options:NSJSONReadingMutableContainers

                                                          error:&err];
if(err)

    {
NSLog(@"json解析失败：%@",err);
return nil;

    }
return dic;

}