saswata-dutta

// https://www.michaelpollmeier.com/2014/06/29/simple-dependency-injection-scala

// define
trait MyService {
  def foo = 42
}

// instantiate
object MyService extends MyService

saswata-dutta

#!/usr/bin/env bash

# set -xv

user=$1
pass=$2

# get token
pass_md5="$(echo -n "$pass" | md5)"
pass_sha512="$(echo -n "${pass}"'ewor88493GVHBMe@' | sha512sum | cut -f1 -d' ')"

saswata-dutta

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Get all gists from the user santisbon.
user:santisbon

Find all gists with a .yml extension.
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Find all gists with HTML files. language:html

saswata-dutta

#!/usr/bin/env python3

import pandas as pd
import requests
import json
import sys


base_url='https://dev.virtualearth.net'
api='REST/v1/Routes/Truck'

saswata-dutta

from datetime import datetime
import time

def as_epoch(row):
    dt = datetime.strptime(row['gps_timestamp'], '%Y-%m-%d %H:%M:%S%z')
    return int(time.mktime(dt.timetuple()))

df['epoch'] = df.apply (lambda row: as_epoch(row), axis=1)
df = df.drop('gps_timestamp', axis=1)
df = df.sort_values('epoch')

saswata-dutta

#!/usr/bin/env bash

index="$1"
pattern="$2"
size="$3"

query="http://ek-elasticsearch.rivigo.com/${index}/_doc/_search?q=stackTrace:${pattern}&_source=stackTrace&scroll=10m&size=${size}&filter_path=hits.hits._source.stackTrace"

curl -s -XGET "${query}" | jq ".hits.hits[]._source.stackTrace" -r

saswata-dutta

// cat payload.json | openssl sha256 -hmac 'secret'
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;

val payload = scala.io.Source.fromFile("payload.json").mkString
val secret = "secret"
val sha256_HMAC = Mac.getInstance("HmacSHA256")
val secret_key = new SecretKeySpec(secret.getBytes("UTF-8"), "HmacSHA256");
sha256_HMAC.init(secret_key)

saswata-dutta

/**
 * D Holbrook
 *
 * Code Club: PO1
 *
 * (*) Define a binary tree data structure and related fundamental operations.
 *
 * Use whichever language features are the best fit (this will depend on the language you have selected).  The following operations should be supported:
 *
 *    Constructors

saswata-dutta

# Enter your code here. Read input from STDIN. Print output to STDOUT
from collections import defaultdict
from copy import deepcopy

def get_adj_list_and_zero_degree(no_of_nodes, all_edges):
    all_node_nos = {i for i in range(no_of_nodes)}
    adj_mat = defaultdict(list)
    in_nodes = set()
    for e in all_edges:
        adj_mat[e[0]].append(e[1])

saswata-dutta

#!/usr/bin/env python

import boto3

rds = boto3.client('rds', region_name='ap-south-1')
dbs = rds.describe_db_instances()

def get_tags_for_db(db):
    instance_arn = db['DBInstanceArn']
    instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)