What is Girder? Girder is a free and open source web-based data management platform developed by as part of the.

Uksun, K., Leon, R.T., Galambos, T.V. “Seismic Design of Steel Joist Girder Structures“, Third Quarter. Click here for a free download. May 2017, pp 30-33. Dec 8, 2015 - available for free download at the NSBA and FHWA websites. Figure 18 A slab-on-girder bridge with a possible grillage mesh.

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What does that mean? Girder is both a standalone application and a platform for building new web services. It’s meant to enable quick and easy construction of web applications that have some or all of the following requirements: • Data organization and dissemination Many web applications need to manage data that are dynamically provided by users of the system, or exposed through external data services. Girder makes construction and organization of dynamic data hierarchies simple. One of the most powerful aspects of Girder is that it can transparently store, serve, and proxy data from heterogeneous backend storage engines through a single RESTful web API, including local filesystems, MongoDB databases, Amazon S3-compliant key-value stores, and Hadoop Distributed Filesystems (HDFS). • User management & authentication Girder also includes everything needed for pluggable user management and authentication out of the box and adheres to best practices in web security. The system can be configured to securely store credentials itself, or defer to third-party authentication services such as OAuth or LDAP.

• Authorization management Girder supports a simple access control scheme that allows both user-based and role-based access control on resources managed in the system. The project has undergone rigorous security audits and has extensive automated testing to exercise authorization behavior and ensure correctness. For an overview of the concepts present in Girder, we recommend checking out the. Girder is published under the Apache 2.0 License.

Its source code can be found at. The architecture Girder’s server-side architecture is focused around the construction of RESTful web APIs to afford minimal coupling between the backend services and the frontend clients. This decoupling allows multiple clients all to use the same server-side interface. While Girder does contain its own single-page javascript web application, the system can be used by any HTTP-capable client, either inside or outside of the web browser environment.

Girder can even be run without its front-end application present at all, only serving the web API routes. The web API is mostly used to interact with resources that are represented by models in the system. Models internally interact with a Mongo database to store and retrieve persistent records. The models contain methods for creating, changing, retrieving, and deleting those records.