moehandi

curl -H "Content-Type:application/json" "Authorization:key=SERVER_KEY" 
 -X POST https://iid.googleapis.com/iid/v1:batchRemove  
 -d '{ 
      "to": "/topics/sakit_perut", 
      "registration_tokens":[
                            "DeviceTokenFromUser"
      ] 
 }'

moehandi

package main

import (
	"fmt"
	"reflect"
)

type Foo struct {
	FirstName string `tag_name:"tag 1"`
	LastName  string `tag_name:"tag 2"`

moehandi

package main

import (
	"bytes"
	"fmt"
	"io"
	"log"
	"mime/multipart"
	"net/http"
	"os"

moehandi

package main

import (
        "fmt"
        "net/http"

        "github.com/gorilla/mux"
)

// AnotherHandlerLatest is the newest version of AnotherHandler

moehandi

class EncodingResponseInterceptor implements Interceptor {
        @Override
        public okhttp3.Response intercept(Chain chain) throws IOException {
            Request request = chain.request();

            okhttp3.Response response = chain.proceed(request);

            BufferedSource source = response.body().source();
            source.request(Long.MAX_VALUE); // Buffer the entire body.
            Buffer buffer = source.buffer();

moehandi

package main

import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"encoding/base64"
	"fmt"
	"io"
)

moehandi

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

moehandi

var crypto = require('crypto');

// the Base64 encoded Google Play license key / Base64-encoded RSA public key from the Google Play Dev Console
var publicKey = "ABCEDF1234....";

/** sample
 {
   "orderId":"12999763169054705758.1371079406387615",
   "packageName":"com.example.app",
   "productId":"exampleSku",

moehandi

$ redis-cli
> config set stop-writes-on-bgsave-error no

moehandi

Update all expired keys from Ubuntu key server in one command:

sudo apt-key list | \
 grep "expired: " | \
 sed -ne 's|pub .*/\([^ ]*\) .*|\1|gp' | \
 xargs -n1 sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys

Command explanation: