Model Interpreters/Transformations ============================ Plugins --------------------- `Plugins `_ are custom extension points to a webgme-deployment that are intended to be used for e.g. querying, interpreting and building models. The framework and API are designed to enable both server- and browser-side execution of the same code. At the point where a plugin is executed it will have access to the context it was invoked and various webgme APIs, e.g. :code:`Core`, :code:`Project`, :code:`BlobClient` etc. Plugins are the typical starting point when adding interpretation to models and in this tutorial we will focus on how to create and write plugins. Add-ons ---------------------- Add-ons are extensions that run on the server and are triggered by changes made in the model. Registered add-ons are started when there is user-activity in a certain branch of a project and are kept running as long as (configurable) changes are being made. Add-ons have access to the same APIs as plugins (except the project API). Webhooks --------------------- Webhooks are similar to add-ons but more loosely coupled. They can be triggered by different events on the webgme storage and the implementation requires a server accepting the post-requests sent out at the events. For more detailed documentation see the `webgme-wiki pages `_. iCore ---------------------- `iCore `_ is a visualizer for webgme that enables editing and execution of code using the same APIs as a plugin directly in the webgme GUI. This is a good way to get familiar with the different APIs without the need to host your own deployment. For larger projects/deployments and more advanced interpreters it's not recommended to rely on the iCore and it should be treated as an educational feature. To get a quick start to this tutorial it is possible to complete the majority of the steps by creating the meta-model and using the iCore for implementing the code generator on `webgme.org `_. Since the iCore does not have access to the server, it is however not possible to execute any simulation tool with this approach.