Open City Project

Installation

Just run the following command:

docker-compose up

API

There is a basic api using express in api folder

There is an API spec for swagger in the api-def folder. Go to http://editor.swagger.io/ and paste it in to the editor. From there you can generate a server and a client

Test pages

Create a user first: http://localhost/create-user.html Then use that user's email to create POIs: http://localhost/create-poi.html

Details

There are 2 main api endpoints which will readily be used:

User - /v1/user

User POST example:

curl -X POST \
    -H "Content-Type: application/json" \
    -H "Cache-Control: no-cache" \
    -H "Postman-Token: 9a550192-c030-1789-ed0e-32be9e67cc07" \
    -d '{"name" : "wesley", "email": "wesley@example1.com"}' \
    "http://localhost/v1/users"

POI - /v1/poi

POI POST example:

curl -X POST \
    -H "Content-Type: application/json" \
    -H "Authorization: Basic YWRtaW5AbyBjcC5jb206YWRtaW4=" \
    -H "Cache-Control: no-cache" \
    -H "Postman-Token: 463f4a4b-f8ef-61e2-306d-909e952f593d"
    -d '{"name":"Cathedral Square","gps_lat":"10","gps_long":"10","distanceInMetres":100,"start_date":"2017-03-06T11:00:00.000Z","end_date":"2017-03-06T12:00:00.000Z","is_all_day":true,"poi_url":"","description":"It'"'"'s a historic site","categories":"6","tags":"","is_every_day":true,"days_of_week":"1,2,3"}' \
    "http://localhost/v1/poi"

Database

Database Entity Relationship diagram

Also useful resource for auditing:

• http://stackoverflow.com/questions/1523446/is-it-possible-to-get-a-history-of-queries-made-in-postgres

Docker Compose

Of note, the database is held by docker, you may want to setup a replication to somewhere else

docker-compose up # -d for daemon, --build if you make a change
# Remove database data
docker-compose down
docker volume rm ocpdocker_db-data

# Inspect
docker volume ls
docker volume inspect ocpdocker_db-data
docker ps
docker-compose ps
docker images
docker-compose rm -f

## Clear all
# Delete all containers
docker rm $(docker ps -a -q)
# Delete all images
docker rmi $(docker images -q)
# Delete all volumes
docker volume rm $(docker volume ls -q)

# Shell Access
docker-machine ssh default
docker exec -it my-app-container bash

NodeJS Express

Just a note here that

• req.query = querystring
• req.params = rest params in /user/:id
• req.body = post options
• req.get(headerName) = for headers

Use req.method to distinguish post, get etc

Conventions

Postgres

Based on: http://stackoverflow.com/questions/338156/table-naming-dilemma-singular-vs-plural-names http://stackoverflow.com/questions/2878248/postgresql-naming-conventions

1. Table names, column names are lowercase, with underscores
2. Always use singlar names (user instead of users)
3. ALL SQL is capitalised (SELECT, INSERT etc)

Required columns: when_updated and when_added - uses a trigger to update

When no clear unique id is clear for a table, use a uuid, preferably

CREATE EXTENSION "uuid-ossp";
SELECT uuid_generate_v1mc()
-- or -worse because disk frag, but actually random
CREATE EXTENSION pgcrypto;
SELECT gen_random_uuid()