pisces

A service for fetching, merging and transforming data for discovery.

pisces is part of Project Electron, an initiative to build sustainable, open and user-centered infrastructure for the archival management of digital records at the Rockefeller Archive Center.

Setup

Install git and clone the repository

$ git clone https://github.com/RockefellerArchiveCenter/pisces.git

Install Docker and run docker-compose from the root directory

$ cd pisces
$ docker-compose up

Once the application starts successfully, you should be able to access the application in your browser at http://localhost:8007

When you're done, shut down docker-compose

$ docker-compose down

Or, if you want to remove all data

$ docker-compose down -v

Development

This repository contains a configuration file for git pre-commit hooks which help ensure that code is linted before it is checked into version control. It is strongly recommended that you install these hooks locally by installing pre-commit and running pre-commit install.

Configuring

Pisces configurations are stored in /pisces/config.py. This file is excluded from version control, and you will need to update this file with values for your local instance.

The first time the container is started, the example config file (/pisces/config.py.example) will be copied to create the config file if it doesn't already exist.

Services

pisces has three main sets of services, all of which are exposed via HTTP endpoints (see Routes section below):

• Fetch data from data sources
• Merge data from different sources into a unified SourceData object
• Transform source data into target data

Routes

Method	URL	Parameters	Response	Behavior
GET, PUT, POST, DELETE	/fetches/		200	Returns data about FetchRun routines
POST	/fetch/archivesspace/updates	object_type (required) - target object type, one of resources, objects, subjects, agents	200	Fetches updated data from ArchivesSpace
POST	/fetch/archivesspace/deletes	object_type (required) - target object type, one of resources, objects, subjects, agents	200	Fetches deleted data from ArchivesSpace
POST	/fetch/cartographer/updates	object_type (required) - target object type, one of arrangement_map	200	Fetches updated data from Cartographer
POST	/fetch/cartographer/deletes	object_type (required) - target object type, one of arrangement_map	200	Fetches deleted data from Cartographer
POST	/transform/		200	Transforms data
POST	/merge/		200	Merges data
GET	/status		200	Return the status of the service
GET	/schema.json		200	Returns the OpenAPI schema for this service

Routes

This service depends on JSON schemas defined for your archival data. Rockefeller Archive Center's schemas can be used as a basis for your schemas. An easy way to incorporate your own schemas is to fork Rockefeller Archive Center's repository, clone it into this directory under the rac-schema folder, and edit the requirements.in to use this local repository.

For example:

git clone https://github.com/ulsdevteam/rac_schemas rac-schemas
sed 's/rac-schemas/.\/rac-schemas/' -i requirements.in

License

This code is released under an MIT License.