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UHN-Backend-Server

University Health Network API Endpoint Backend Server

Setup

  1. Install Node.js through online browser
  2. Install MongoDB through online browser, specifically the MongoDB Community Server
  3. Create a ".env" file with SECRET defined as one of the environment variables
  4. In ".env", define DATABASE_URL with format: "postgresql://<username>:<password>@<host>:5432/UHN-metrics"

Run

Starting the MongoDB Server

  1. Open command prompt from start on local PC (assuming windows setup)
  2. Type "cd ..." and replace "..." with the bin folder directory within where mongoDB is installed
  3. Run "mongo.exe"

Starting Redis

  1. Download Redis using wget (Windows: wsl, Mac/Linux: terminal). Use version 5.0.6
$ wget http://download.redis.io/releases/redis-5.0.6.tar.gz
  1. Unzip tar file
$ tar xzf redis-5.0.6.tar.gz
  1. Make project
$ cd redis-5.0.6
$ make
  1. Run Redis server, leave process opened
$ src/redis-server

Starting the Express server

Make sure you are in project directory and run, it will automatically detect any changes and refresh when necessary

$ npm start

Starting PostgreSQL Metrics Database

  1. Download and install Postgres 12 (Older versions cannot use Postgres 12 databases). Remember superuser password.

  2. Make sure your system environment variables contain the PATH to the "bin" folder in PostgresQL's install location, or else "pg_ctl" command may not be found.

  3. Start server with pg_ctl -D "PathToPostgresInstall" start

    (Default windows path: "C:/Program Files/PostgreSQL/12/data")

    Stop server with pg_ctl -D "PathToPostgresInstall" stop

  4. Once server has started, enter postgres CLI with superuser account 'postgres' psql postgres postgres. Enter your superuser password when prompted.

  5. Create database called "UHN-metrics" CREATE DATABASE "UHN-metrics";

  6. Create user named metric with password pwctcuhn CREATE ROLE metric WITH LOGIN PASSWORD 'pwctcuhn';

  7. Logout from postgres server and enter following command in the root directory to initalize database psql --username=metric UHN-metrics < data.sql

To fill database with example data, uncomment bottom statements in data.sql and run command from step 7.

For help with DATABASE_URL fields, go to root directory, connect to postgres with psql --username=metric UHN-metrics and enter \conninfo

Run tests

Make sure you are in project directory and run

$ npm test

Migrations

  1. Remove email field: db.users.update({}, {$unset: {email: true}}, {multi: true, safe: true})