smapshot api

• Project description
• Initial setup
• Develop with Docker Compose (recommended)
  • Requirements
  • Setup
  • Run the application
  • Run the automated tests
  • Useful commands
• Develop locally
  • Setup
  • Run the application
  • Run the automated tests
• Development guide

Project description

Smapshot is a crowdsourcing platform to geolocalize historical images in 3 dimension. Production version is available at https://smapshot.heig-vd.ch

This project contains the code of the smapshot API available live at https://smapshot.heig-vd.ch/api/v1/ The online documentation is available at https://smapshot.heig-vd.ch/api/v1/docs/

Initial setup

Fetch (or ask for) a database dump

• As root on the production server:
  • cp /data/backups/smapshot-backend/smapshot_database_daily/{datetime of the previous day}/smapshot_database_daily.tar /tmp/
• As username on your local machine, run the following steps:
  • scp {username}@{servername-or-ip}:/tmp/smapshot_database_daily.tar /home/{username}/Download/
  • cd /home/{username}/Download/
  • tar -xvf smapshot_database_daily.tar
  • cd ./smapshot_database_daily/databases/
  • gzip -d PostgreSQL.sql.gz
  • rm /home/{username}/Download/smapshot_database_daily.tar

Set your environment

• Copy the .env.sample file to .env and adapt it to your local environment.

  • Especially set up Facebook and Google OAuth credentials.
  • Set up the DUMP_FILE variable to reference the previousely fetched PostgreSQL database dump, e.g. /home/{username}/Downloads/smapshot_database_daily/databases/PostgreSQL.sql.

  If you are developing with Docker Compose, you do not need to configure the database connection, as the database is created and configured for you.

• You can download sample images from the Switch drive. Unzip the contents of the data.zip file into the public/data directory in this repository.

• A super admin demo account is created in the database during the intialization. It can be used to login in the API using the following information:

  • first_name: Frank
  • last_name: Dulin
  • email: super_admin@smapshot.ch
  • username: super_admin
  • password: super_admin

Develop with Docker Compose (recommended)

Requirements

• Docker 18.09+.
• Docker Compose 1.24+.

Setup

Create and migrate the database:

npm run compose:migrate

Run the application

Command	Description
npm run compose:app	Start the application and install dependencies the first time.

Visit http://localhost:1337/docs/ once the application has started.

Run the automated tests

Command	Description
npm run compose:test	Run the test suite.
npm run compose:test:coverage	Also generate a test coverage report (slower) in the coverage directory.
npm run compose:test:debug	Run the test suite with verbose logs to help debug issues.

Useful commands

Command	Description
docker compose up --build app	Run the application in the foreground (this is what npm run compose does).
docker compose up --build --detach app	Run the application in the background.
docker compose stop	Stop all containers.
docker compose down	Stop and remove all containers (but keep the data).
docker compose down --volumes	Stop and permanently delete all containers and data.
docker compose exec app <command>	Execute a command inside the running app container (e.g. docker compose exec app npm install my-new-package).
docker compose ps	List running containers.

Running the application with docker compose up will also automatically re-generate the API documentation and re-run the linter on code changes.

Develop locally

You will need:

• A PostgreSQL 13+ server with the PostGIS extension.
• Node.js 18.x.
• Python 3+ and the pip package installer.

Setup

• Install Node.js dependencies:

  • Run npm ci on a fresh clone.
  • Or, run npm install to install new dependencies.

• Intall required Python tools:

  pip3 install opencv-python numpy scipy pymap3d

• Install the submodule

  git submodule update --init --recursive
  

• Create an empty database:

  psql
  > CREATE DATABASE smapshot;

• If you are using PostGIS 3+, you must also manually create the postgis and postgis_raster extensions before migrating the database:

  \connect smapshot
  CREATE EXTENSION postgis;
  CREATE EXTENSION postgis_raster;
  

• Migrate the database (assuming you have the correct database configuration in your .env file):

  npm run migrate

Run the application

• Run npm start to start the server once.
• Or, run npm run dev to start it with live reload. It will also keep the API documentation up to date and lint the code when it changes.

Then visit http://localhost:1337.

Run the automated tests

Create a separate test database, called smapshot-test by default. You can override the test database settings (e.g. DB_NAME, DB_HOST) in a .env.test file similar to your .env file.

Command	Description
npm test	Run the test suite.
npm run test:coverage	Also generate a test coverage report (slower) in the coverage directory.
npm run test:debug	Run the test suite with verbose logs to help debug issues.
npm run test:watch	Automatically run the tests when code changes.

Development guide

Read the development guide for more information.