chief-wizard

/** Required Node.js modules */
const Express = require('express');
const Joi = require('joi')
const joiMiddleware = require('express-joi-validation').createValidator({})
const Prisma = require('prisma/prisma-client');
/** Instantiate Prisma client */
const prisma = new Prisma.PrismaClient();
 
/** Supplier validation schema for Joi */
const supplierSchema = Joi.object({

peterc

defaultdb=> SELECT * FROM pg_available_extensions;
             name             | default_version | installed_version |                                                       comment                                                       
------------------------------+-----------------+-------------------+---------------------------------------------------------------------------------------------------------------------
 aiven_extras                 | 1.0.2           |                   | aiven_extras
 plpgsql                      | 1.0             | 1.0               | PL/pgSQL procedural language
 btree_gist                   | 1.5             |                   | support for indexing common datatypes in GiST
 tcn                          | 1.0             |                   | Triggered change notifications
 seg                          | 1.3             |                   | data type for representing line segments or floating-point intervals
 pgrowlocks                   | 1.2             |            

felipemoraes

Useful materials:

• Machine Learning cheatsheet: https://stanford.edu/~shervine/teaching/cs-229.html
• Pattern Recognition and Machine Learning Book

magnetikonline

CloudFormation API Gateway integration to Lambda function

Template that will create the following:

• API Gateway:
  • Deployed as a REGIONAL endpoint.
  • Single root method, accepting POST requests only, with Lambda proxy integration to a target function.
• In-line Python Lambda function echoing back requesting users IP address to API Gateway requests:
  • IAM role for Lambda allowing CloudWatch logs access.
  • Permissions for Lambda that allow API Gateway endpoint to successfully invoke function.

NigelEarle

Knex Setup Guide

Create your project directory

Create and initialize your a directory for your Express application.

$ mkdir node-knex-demo
$ cd node-knex-demo
$ npm init

mGalarnyk

Machine Learning Week 1 Quiz 2 (Linear Regression with One Variable) Stanford Coursera

Github repo for the Course: Stanford Machine Learning (Coursera)

Question 1

Consider the problem of predicting how well a student does in her second year of college/university, given how well she did in her first year.

Specifically, let x be equal to the number of "A" grades (including A-. A and A+ grades) that a student receives in their first year of college (freshmen year). We would like to predict the value of y, which we define as the number of "A" grades they get in their second year (sophomore year).

jgdoncel

DROP FUNCTION IF EXISTS fn_remove_accents;
DELIMITER |
CREATE FUNCTION fn_remove_accents( textvalue VARCHAR(10000) ) RETURNS VARCHAR(10000)

BEGIN

    SET @textvalue = textvalue COLLATE utf8_general_ci;;

    -- ACCENTS
    SET @withaccents = 'ŠšŽžÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÑÒÓÔÕÖØÙÚÛÜÝŸÞàáâãäåæçèéêëìíîïñòóôõöøùúûüýÿþƒ';

bradvogel

/**
 * This script will automatically sync all updates from one database to another. It is meant to be run while
 * syncing the database using mongodump and mongorestore.
 *
 * Example:
 *  node livesync.js mongodb://<user>:<pass>@dbhost.com:10645/app-production \
 *		mongodb://<user>:<pass>@dbhost.com:10499/local?authSource=app-production \
 *		app-production \
 *		mongodb://<user>:<pass>@newdbhost.com/app-prod
 */

reggi

How to setup AWS lambda function to talk to the internet and VPC

I'm going to walk you through the steps for setting up a AWS Lambda to talk to the internet and a VPC. Let's dive in.

So it might be really unintuitive at first but lambda functions have three states.

1. No VPC, where it can talk openly to the web, but can't talk to any of your AWS services.
2. VPC, the default setting where the lambda function can talk to your AWS services but can't talk to the web.
3. VPC with NAT, The best of both worlds, AWS services and web.

eladnava

#!/bin/sh

# Make sure to:
# 1) Name this file `backup.sh` and place it in /home/ubuntu
# 2) Run sudo apt-get install awscli to install the AWSCLI
# 3) Run aws configure (enter s3-authorized IAM user and specify region)
# 4) Fill in DB host + name
# 5) Create S3 bucket for the backups and fill it in below (set a lifecycle rule to expire files older than X days in the bucket)
# 6) Run chmod +x backup.sh
# 7) Test it out via ./backup.sh