tobocop

@JsonSerialize(using = SingularResponseSerializer::class)
data class SingularResponse<T> constructor(
    val key: String,
    val item: T
)

class SingularResponseSerializer<T>: JsonSerializer<SingularResponse<T>>() {
    override fun serialize(value: SingularResponse<T>, gen: JsonGenerator, serializers: SerializerProvider) {
        val obj: Map<String, T> = mapOf(value.key to value.item)
        gen.writeObject(obj)

alexislucena

To keep the changes from the commit you want to undo

$ git reset --soft HEAD^

To destroy the changes from the commit you want to undo

$ git reset --hard HEAD^

You can also say

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

mschoebel

package main

import (
	"fmt"
	"github.com/gorilla/mux"
	"github.com/gorilla/securecookie"
	"net/http"
)

// cookie handling

smebberson

node_modules
*.swp