Mobile app / front-end code is here

Working Versions:

• Node v9.9.0
• NVM v0.34.0

Setup Instructions

PostgreSQL Database

PostgreSQL Cheat Sheet

Install PostgreSQL via Homebrew: brew install postgresql, download TablePlus GUI Tool

Here's list of commands to start / stop the server

# Manual start
pg_ctl -D /usr/local/var/postgres start # Start server
pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start # Start server with log file

# Manual stop
pg_ctl -D /usr/local/var/postgres stop

# Auto on log-in
brew services start postgresql
brew services stop postgresql

Once started, check if postgres is running:

export PGDATA='/usr/local/var/postgres' # Set PGDATA env variable
pg_ctl status

pg_ctl status should print out:

pg_ctl: server is running (PID: 15460)
/usr/local/Cellar/postgresql/14.4/bin/postgres "-D" "/usr/local/var/postgres"

If this is a fresh installation, need to initialize the database cluster (a collection of databases managed by a single server)

initdb /usr/local/var/postgres

Default host: 127.0.0.1 / localhost, port: 5432

To access the shell, run psql -U postgres

If you run into an error psql: error: connection to server on socket "/tmp/.s.PGSQL.5432" failed: FATAL: database "postgres" does not exist, run createdb postgres and try again

Set up schema

psql -U postgres # log into psql shell

\c ldr_app # Connect to a specific database
\i ./database/initialize_database.sql

Troubleshooting

postgis error when running initialize_database.sql

ERROR:  could not open extension control file "/usr/local/share/postgresql/extension/postgis.control": No such file or directory

Try installing postgis via Homebrew: brew install postgis and run CREATE EXTENSION postgis; manually:

psql -U postgres
CREATE EXTENSION postgis;

General Troubleshooting

yarn install

If you run into an error like below:

node-pre-gyp WARN Pre-built binaries not found for bcrypt@3.0.3 and node@20.9.0 (node-v115 ABI, unknown) (falling back to source compile with node-gyp) 
node-pre-gyp http 404 status code downloading tarball https://github.com/kelektiv/node.bcrypt.js/releases/download/v3.0.3/bcrypt_lib-v3.0.3-node-v115-darwin-x64-unknown.tar.gz 

when running yarn / yarn install, try changing to an earlier version of node using NVM:

nvm ls # Lists out (local) installed versions of node
nvm use 9.9.0 # Switch to an earlier version, v9.9.0 currently works
node -v # Re-confirm the version switch

If you see a bunch of node-pre-gyp ERR! that can be ignored.

ERROR: relation 'session' does not exist

2023-11-04 15:13:19.519 CDT [42930] ERROR:  relation "session" does not exist at character 13
2023-11-04 15:13:19.519 CDT [42930] STATEMENT:  DELETE FROM "session" WHERE expire < to_timestamp($1)
Failed to prune sessions: relation "session" does not exist

Run the SQL query below with psql or TablePlus:

CREATE TABLE sessions (
  sid character varying NOT NULL PRIMARY KEY,
  sess json NOT NULL,
  expire timestamp(6) with time zone NOT NULL
);

yarn start

If you get the below error:

node:internal/modules/cjs/loader:1327
  return process.dlopen(module, path.toNamespacedPath(filename));
                 ^

Error: The module '/Users/michaelhsu/Documents/GitHub/LDR-App-server/node_modules/bcrypt/lib/binding/bcrypt_lib.node'
was compiled against a different Node.js version using
NODE_MODULE_VERSION 59. This version of Node.js requires
NODE_MODULE_VERSION 115. Please try re-compiling or re-installing
the module (for instance, using `npm rebuild` or `npm install`).
    at Module._extensions..node (node:internal/modules/cjs/loader:1327:18)
    at Module.load (node:internal/modules/cjs/loader:1091:32)

Change your node version to v9.9.0 using nvm use 9.9.0.

TODO: Figure out create extension postgis; error