emdash

The goal of emdash is to provide a deployer dashboard for an e-mission deployment.

Tab	Example
Dashboard
Tables (and interactive visualisation)
Map

Installation

You can install emdash from GitHub:

install.packages("remotes")
remotes::install_github("asiripanich/emdash")

Alternatively, with Docker CLI:

docker pull amarins/emdash
docker run -d -p 80:80 --name emdash amarins/emdash

After that, open your favourite browser and type localhost or http://0.0.0.0:80 in the URL bar to see the dashboard.

How to use the dashboard

Run locally

To use the dashboard you must config the port of your e-mission mongoDB in the emdash::run_app(mongo_url = 'mongodb://localhost:27017') command. As you can see, the default is 27017. The easiest way to use this dashboard with your e-mission deployment is to create a SSH tunnel to the e-mission mongo on your e-mission server.

ssh -L {my-local-port}:localhost:{remote-server-port} username@your-server-ip-address-or-domain-name
ssh -L 27017:localhost:27017 ec2-user@123.12.12.1

Here is how you launch a e-mission dashboard with emdash.

library(emdash)
emdash::run_app(mongo_url = 'mongodb://localhost:27017')

Loading test data

This repository contains a test mongodump with entries from the e-mission unit test real data.

• 2016-07-22
• 2016-07-25
• 2016-07-27
• 2016-08-04
• 2016-08-05
• 2016-08-09
• 2016-08-10
• 2016-08-11

It includes background sensed data (background/*), analysis results (analysis/*) and the mode and purpose confirm objects from the master branch (manual/mode_confirm and manual/purpose_confirm).

To load the data into a local mongodb,

$ unzip test-data/2016_jul_aug_test_trips.zip
$ mongorestore

If you would like to load additional data, you can do so through the e-mission server.

For convenience, you may use this docker_start_test_mongodb.sh for starting up a Docker container that will run the test database.

Use with Docker

We provide a Dockerfile to run this dashboard. In the future we may include this as part of an e-mission docker-compose file which will be hosted on the e-mission-docker github repo.

Be warned that the emdash Docker image is quite large, around 2.8 GB, and take a while to build. You can use pull from the emdash docker repository and skip the wait!

How to customise the dashboard

First you need to know R and Shiny. I tried to modularise each component as much as possible so that the dashboard is easy to be customised. Any advices to improve the dashboard are welcomed. :)

Customise query functions

See R/utils_query_database.R.

The functions in this script are for querying data from the e-mission mongoDB database.

Customise data

See R/utils_tidy_data.R.

The functions in this script are for cleansing and transforming data queried using the functions in R/utils_query_database.R.

Citation

Use emdash in your work? Consider citing the package:

@software{siripanich_amarin_2021_4456315,
  author       = {Siripanich, Amarin and 
                  Rashidi, Taha Hossein and 
                  Shankari, K and 
                  Allen, Michael and 
                  Yip, Arthur},
  title        = {asiripanich/emdash: v1.5.0},
  month        = Jul,
  year         = 2021,
  publisher    = {Zenodo},
  version      = {v1.5.0},
  doi          = {10.5281/zenodo.5166881},
  url          = {https://doi.org/10.5281/zenodo.5166881}
}