chinmay185

Problem statement:

Design the auth flow apis (signup, login, etc) for an OTP based user authentication. Assume OTP will be created and presented to users upon a successful login.

API Signature:

- URL
- Request Method
- Request Headers

chinmay185

package grep

import (
	"os"
	"path/filepath"
	"strings"
	"sync"
	"testing"
	"time"
)

chinmay185

package grep

import (
	"bufio"
	"flag"
	"io"
	"io/ioutil"
	"log"
	"os"
	"path/filepath"

chinmay185

package main

import (
	"fmt"
	"time"
)

type Command struct {
	message  string
	senderId int

chinmay185

package main

import (
	"io/ioutil"
	"os"
	"log"
	"bufio"
	"fmt"
	"strings"
	"path/filepath"

chinmay185

var Promise = require("bluebird");
var fileParts = ["http://myfiles.com/file1/part1", 
		"http://myfiles.com/file1/part2", 
		"http://myfiles.com/file1/part3"];

var fetchPart = function(partUrl) {
  // returns the promise of the part of a file
};

var filePartPromises = fileParts.map(fetchPart);

chinmay185

var Promise = require("bluebird");
var productIds = ["productId1", "productId2", "productId3"];

var getProductsFromDb = function(productId) {
  // returns a promise of product
}

var productPromises = productIds.map(getProductFromDb);

Promise.all(productPromises).then(function(products) {

chinmay185

var Promise = require("bluebird");
var apiUrls = ["url1", "url2", "url3"];

var request = function(url) {
  // request the rate limited api (returns a promise)
};
var saveResponse = function(response) {
  // save response to file/db (returns a promise)
};

chinmay185

var getUserEmail = function (username) {
  return userRepository.find(username).then(function (user) {
    return user.email;
  });
};

getUserEmail("emma").then(console.log);

chinmay185

var getUserEmail = function(username) {
  var deferred = q.defer();
  userRepository.find(username) // assume this returns a promise
    .then(function(user){
      deferred.resolve(user.email);
    });
  return deferred.promise;
};

getUserEmail("emma").then(console.log);