Add new GraphQL query to export and return protocol templates (field format)

[syncpark]

Issue

in Web UI

Currently, in Web UI, a GraphQL query for each protocol must be pre-written to retrieve the relevant raw events from Giganto.
This is because even if a similar query is used, the field format is different for each protocols.
Therefore, there is a problem that UI modification work is required every time protocols are added or changed.

in REconverge

REconverge receives raw events from Giganto in CSV format, the field format must be defined manually in the training configuration.
Many mistakes occurs in this work.

And there is Template to define field format1 in Web UI, but not yet used.

Proposal

The problems pointed out above can be solved by creating GraphQL query to return field format.

• request param: specify protocol name or null(all)
• result: Vector of (field format)

Required functions:

• export templates to file
• return templates as GraphQL response

Benefit

Web UI can query dynamically on the run with the returned field format.
The work required to modify the UI each time whenever protocols are added or modified is greatly reduced.

In REconverge, engineer does not require to write field format for each protocols to read raw events from Giganto.
Errors caused by manual work are also reduced.