Blog

The latest news, views and advice from our developer community

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Releases

API Summary in Preservica 6.3

In this post I'll give you a summary of what APIs we have in Preservica 6.3, and what new features you might be interested in. If you've been using Preservica for a while and just want to know what changed, you can look for the relevant paragraph at the end of each section, and for more details, you can look at the release notes from the three versions (6.2.1, 6.2.2 and 6.3). If you're new to the Preservica APIs then you can use the whole article as a reference.

Richard Smith
May 19th 2021
Getting Started

Using OPEX and PAX for Ingesting Content

Preservica has developed the concept of an OPEX (Open Preservation Exchange) package, a collection of files and folders with optional metadata, as a way to organise content into an easy to understand format for transfer into or out of a digital preservation system. Although we have created it, we hope suppliers of digital content to be preserved, and other digital preservation systems, will use it due to its simplicity.

Richard Smith
January 28th 2021
Preservica Users

Leveraging the Preservica API for Data Exports

The journey to become a trusted digital repository is a significant endeavour for any organization. As part of LAC’s (Library and Archives Canada) efforts in this regard, over the past two years we have been testing and integrating our workflows with Preservica to support LAC’s management of digital holdings.

Maxime Champagne
November 9th 2020
Preservica Users

Texas State Library and Archives Commission - Preservica APIs in practice

Brian Thomas, Electronic Records Specialist at Texas State Library and Archives Commission (TSLAC), considers why they started using Preservica APIs, the most common ways these are used and the steps they use to work out new processes.

Brian Thomas
October 14th 2020
Releases

API Versioning in Preservica 6.2

This article explains how we plan to use API versioning to enable you to move between Preservica versions smoothly, while still allowing us to make changes and additions to our APIs, and allowing more flexible clients to receive those updates with no effort.

Richard Smith
September 23rd 2020
Getting Started

Using the PAR API to create Custom Migrations

Since the release of v6, Preservation Actions within Preservica have been defined and controlled using a PAR (Preservation Action Registries) data model. To facilitate this, Preservica’s registry also exposes a PAR API to allow a full range of CRUD operations on this data. This API also makes it possible to write new migration actions using Preservica’s existing toolset, for example, to introduce re-scaling to your image/video migrations, or to get different output formats altogether. In this article, we will introduce the key concepts in this data model, explain how Preservica uses and interpret them, and introduce the API calls required to create your own custom actions. We will do this by a worked example, using ImageMagick to create a custom “re-size migration” for images.

Jack O'Sullivan
August 11th 2020
Getting Started

Using Python with the Preservica Entity APIs (Part 3)

In this article we will be looking at API calls which create and update entities within the repository, some calls to add and update descriptive metadata and we will also look at the use of external identifiers which are useful if you want to synchronise external metadata sources to Preservica.

James Carr
June 11th 2020
Getting Started

Using Python with the Preservica Entity APIs (Part 2)

In my previous article on using the Preservica Entity API with Python we looked at creating the authentication token used by all the web service calls and then showed how we could use the token to request basic information about the intellectual assets held in the Preservica repository.

James Carr
May 27th 2020
Getting Started

Using Python with the Preservica Entity APIs (Part 1)

The Preservica Entity API provides a set of Restful web services to allow users to interact with the Preservica repository. The services allow both the reading and writing of metadata attached to both digital assets and their parent aggregations or collections. The API also allows read access to the digital content within the assets.

James Carr
May 13th 2020