Flogo gives you the ability to make use of your own extensions. You can take an OSS / Project Flogo Contribution( Activity, trigger, or connector) and use that in Flogo Enterprise or TIBCO Cloud Integration - Flogo by uploading it as a Flogo extension.  You can also create a brand new TIBCO Cloud Integration - Flogo/Flogo Enterprise extension. The article has detailed steps covering both scenarios.

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1. Leveraging the already existing activities built by the Project Flogo community or existing OSS activities is really easy. Please follow the steps in this doc to use it:
https://tibcosoftware.github.io/tci-flogo/building-extensions/getting-started/prerequisites/

All the activities built for Project Flogo will appear in the default category in TIBCO Cloud Integration after uploading as extensions.

For Flogo OSS code issues, we have a Public Gitter channel for Flogo OSS help (https://gitter.im/project-flogo/Lobby)

project-flogo/Lobby

All things Project Flogo... Report issues, chat with users & contributors. Join channel project-flogo/developers for project contribution & dev focused conversations.

2. For writing a new TIBCO Cloud^™ Integration Flogo^® or TIBCO Flogo^™ Enterprise extension, make sure the code follows our Flogo extension requirements before uploading the extension:
https://tibcosoftware.github.io/tci-flogo/building-extensions/getting-started/prerequisites/create-new-category/understanding-of-category/extension/

You need to pay attention to the JSON document (connector.json, trigger.json, activity.json) to follow their validation rules:
https://tibcosoftware.github.io/tci-flogo/building-extensions/getting-started/prerequisites/create-new-category/understanding-of-category/extension/connection-model-runtime/#model
https://tibcosoftware.github.io/tci-flogo/building-extensions/getting-started/prerequisites/create-new-category/understanding-of-category/extension/activity-model-runtime/#model
https://tibcosoftware.github.io/tci-flogo/building-extensions/getting-started/prerequisites/create-new-category/understanding-of-category/extension/trigger-model-runtime/#model

After testing your extension code, you can upload it to TIBCO Cloud^™ Integration Flogo^® or TIBCO Flogo^™ Enterprise apps by following steps:
https://tibcosoftware.github.io/tci-flogo/building-extensions/upload/

The tci-awesome (https://tibcosoftware.github.io/tci-awesome) repository is where we have an overview of the exciting extensions that are developed by the community for your reference.

How to create a Flogo extension and use that in Flogo Enterprise or TIBCO Cloud Integration-Flogo?

https://integration.cloud.tibco.com/docs/index.html#Subsystems/flogo/flogo-all/uploading-extensions2.html

https://tibcosoftware.github.io/tci-flogo/

https://tibcosoftware.github.io/tci-awesome