How to implement push message function in takeout system

With the rapid development of the Internet, the food delivery industry has also emerged rapidly. More and more users choose to order food through takeout platforms, and the push message function has become one of the essential functions of takeout platforms. This article will discuss how to implement the push message function in the takeout system from a technical implementation perspective.

1. The significance of the push message function

In the food delivery platform, the push message function is very important. Because most users use the takeout platform through mobile APPs. These mobile apps need to remind users in a timely manner through push messages.

For example, after a user places an order, the merchant may need to complete the delivery within a certain period of time. In this case, push messages can serve as a timely reminder to users. At the same time, merchants can also inform users of some promotional information and so on through push messages. These push messages can be said to be a convenient and fast marketing method in the food delivery industry.

2. Implementation of the push message function

In order for the push message function to operate normally, the following aspects need to be accomplished:

1. Obtain the user's device ID

When pushing a message, you first need to obtain the user's device ID. On Android phones, the device ID can be obtained through the following code:

String deviceId = Settings.Secure.getString(getContentResolver(),

Settings.Secure.ANDROID_ID);

On iOS, the device ID can be obtained through Apple Provided API to obtain:

NSString *deviceID = [[[UIDevice currentDevice] identifierForVendor] UUIDString];

2. Register push service

Get the user's device After the ID, you need to register the push service. On an Android phone, you can register the GCM (Google Cloud Messaging) push service through the following code:

Intent intent = new Intent("com.google.android.c2dm .intent.REGISTER");
intent.putExtra("app", PendingIntent.getBroadcast(this, 0, new Intent(), 0));
intent.putExtra("sender", "YOUR_SENDER_ID") ;
startService(intent);

On iOS, you can register the APNS (Apple Push Notification Service) push service through the following code:

• (void )application:(UIApplication )application didRegisterForRemoteNotificationsWithDeviceToken:(NSData )deviceToken {
  const unsigned *tokenBytes = [deviceToken bytes];
  NSString *hexToken = [NSString stringWithFormat:@" x x x x x x x x",

                    ntohl(tokenBytes[0]), ntohl(tokenBytes[1]), ntohl(tokenBytes[2]),
                    ntohl(tokenBytes[3]), ntohl(tokenBytes[4]), ntohl(tokenBytes[5]),
                    ntohl(tokenBytes[6]), ntohl(tokenBytes[7])];

  NSLog(@"deviceToken: %@", hexToken);
  }

  3. Send push messages

  After the push service is successfully registered, you can start sending push messages. On Android phones, you can send push messages through the following code:

  String message = " your message";
  Intent intent = new Intent("com.google.android.c2dm.intent.SEND");
  intent.putExtra("registration_id", deviceId);
  intent.putExtra(" message", message);
  startService(intent);

  On iOS, push messages can be sent through the APNS service provided by Apple:

  • ( void)pushNotificationTo:(NSString *)deviceToken {
    // Construct the pushed Payload
    NSString *payload = @"{"aps":{"alert":"You have received a new order","sound" :"default"}}";

    // Create SSL Socket
    CFReadStreamRef readStream;
    CFWriteStreamRef writeStream;
    CFStreamCreatePairWithSocketToHost(NULL, (__bridge CFStringRef)@"gateway.push.apple. com", 2195, &readStream, &writeStream);

    //Configure read and write data stream
    NSInputStream inputStream = (__bridge NSInputStream )readStream;
    NSOutputStream outputStream = (__bridge nsoutstream ) WriteStream;
    [InputStream Setproperty: NSSTREAMSCETSECURITYLEVELNEGotiatedSl Forkekey: NSSTREAMSECURITYLEV Elkey];
    [InputStream Setproperty: [NSBundle Mainbundle] ObjectForinfodilityKey:@"YOUR_CERTIFICATE_FILE_NAME"] forkey: (__ Bridge NSSTRING * ) KCFSTREMSSLCERTIFICATES] ;
    [outputStream setProperty:NSStreamSocketSecurityLevelNegotiatedSSL forKey:NSStreamSocketSecurityLevelKey];
    [outputStream setProperty:[[NSBundle mainBundle] objectForInfoDictionaryKey:@"your_certificate_file_name"] forKey:(__bridge NSString *)kCFStreamSSLCertificates];

    / / Open the input and output stream connections APNS
    [inputStream open];
    [outputStream open];

    // Record the length of the Payload
    int payloadLength = [payload length];
    NSMutableData *outputData = [[NSMutableData alloc] init];
    [outputData appendBytes:&payloadLength length:sizeof(payloadLength)];
    [outputData appendData:[payload dataUsingEncoding:NSUTF8StringEncoding]];

    / / Send Payload to the cache
    NSUInteger bufferLength = [outputData length];
    uint8_t buffer[bufferLength];
    memcpy(buffer, [outputData bytes], bufferLength);

    // Send Push request
    [outputStream write:buffer maxLength:bufferLength];
    [outputStream close];
    [inputStream close];
    }

  Before sending push messages, you need to generate relevant certificates and configure them in the Apple Developer Center. Certificates are generally divided into two types: development certificates and production certificates. Development certificates can be used during the development phase, while production certificates are required during the release phase.

  3. Precautions for the push message function

  Although the push message function is convenient and fast, you need to pay attention to the following aspects when using it:

  1. Device ID Obtain

  When obtaining the user's device ID, you need to pay attention to the user's privacy. Because the user's device ID can be used to track the user's activities. Therefore, you need to abide by the relevant privacy policies and only obtain the user's device ID when necessary.

  2. Triggering of push messages

  In the takeout platform, the triggering of push messages needs to be set according to business needs. In order not to make users feel harassed, the triggering time of push messages needs to be carefully considered. If the frequency of push messages is too high, it will easily affect the user experience.

  3. Content of push messages

  The content of push messages needs to be concise and to the point, easy for users to understand. At the same time, you also need to consider its role and not waste the user's time.

  4. Summary

  The implementation of the push message function allows the takeout platform to remind users in a timely manner, increase the user's consumption frequency, and increase the merchant's revenue. However, when using it, you also need to pay special attention to issues such as privacy protection, frequency, and content sent, in order to maximize its value.

  The above is the detailed content of How to implement push message function in takeout system. For more information, please follow other related articles on the PHP Chinese website!