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OpenAgricultureFoundation / openag_brain

ROS package for controlling an OpenAg food computer
GNU General Public License v3.0
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Query endpoint to get ID of currently running recipe #7

Closed gordonbrander closed 8 years ago

gordonbrander commented 8 years ago

We'll need an API endpoint that allows us to query ID of currently running recipe on Raspberry Pi. I don't see a design document for this endpoint in https://github.com/OpenAgInitiative/openag-brain/tree/master/openag/brain/core/_design. Am I missing something?

LeonChambers commented 8 years ago

The latest view in environmental_data_point could be used to do this. When a recipe is started, it creates a data point of type RECIPE_START saying which recipe was started. The RecipeHandler module does this here to check if a recipe is already running when it is initialized.

gordonbrander commented 8 years ago

Thanks!

gordonbrander commented 8 years ago

To construct the query, I need to know the environment ID:

/environmental_data_point/_design/openag/_view/latest?key=[ENVIRONMENT_ID, "EnvironmentalVariable.RECIPE_START", "measured"]

Do we plan to have a design document for this in the environment database?

LeonChambers commented 8 years ago

No, you would just query the environment database to see what environments there are and send the ID of the one in which you want the start the recipe. In the food computers, there will probably only ever be 1 environment though.