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formious

Formious is a node.js experiment server. It fills a niche somewhere above Google Forms, SurveyMonkey, or Qualtrics, but below a full-fledged web application. It provides an opinionated way of presenting stimuli to a participant, which requires more technical knowledge than the previously mentioned form services, but allows much greater flexibility in the construction and presentation of the form questions.

In particular, it was originally built to interface with Amazon Mechanical Turk. In addition to serving as the backend for External Questions, it also provides an alternate interface to parts of the AWS MT interface available via the API.

Installation

npm install -g formious
formious

Deployment

We'll deploy to a Digital Ocean droplet.

DIGITALOCEAN_ACCESS_TOKEN=6c4a0280d36dc219n0t4ctua11ymydigital0ceant0k3n9186729fe910b157bb
docker-machine create -d digitalocean --digitalocean-region nyc3 --digitalocean-size 1gb formious

The formious application requires a PostgreSQL database.

docker run -d --name db -p 127.0.0.1:15432:5432 \
  -v /var/docker/db:/var/lib/postgresql/data postgres:9.4
  • the -v argument stores the data on the host machine so that we don't lose all our data if we accidentally remove or update the postgres container.
  • the -p argument opens the database for access directly from the host machine, which makes backing up the data easier. E.g., if on Ubuntu, run apt-get install postgresql-client to get the appropriate tools, then run pg_dump -h localhost -p 15432 -U postgres formious to dump the database to stdout.

We'll use the handy jwilder/nginx-proxy container to back-proxy HTTP(S) requests to the formious app.

docker run -d -v /var/run/docker.sock:/tmp/docker.sock \
   -p 80:80 -p 443:443 --name nginx jwilder/nginx-proxy

This repo is automatically built as a docker container on Docker Hub at chbrown/formious.

docker run -d -e VIRTUAL_HOST=formious.com --link db:db \
  --restart always --name app chbrown/formious
  • The -e VIRTUAL_HOST=formious.com argument tells nginx-proxy to forward formious.com requests to this container. You would use a different hostname here, since I own formious.com.
  • The --link db:db exposes to the database container, named db, to the formious application, under the alias db.

To update, pull the latest image and remove the running container:

docker pull chbrown/formious && docker rm -f app

Then enter the same docker run command as before.

License

Copyright 2011–2015 Christopher Brown. MIT Licensed.

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chbrown
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