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| # | Description | Details | Decisions |
|---|---|---|---|
| How to differentiatie GET queries with different parameters. If we dont have named parameters how best to know what is meant | Alternatives
| Team meeting Flavio,Tony,Toine,Bruno,Niamh, Rishi 8 Oct 2020: Use hierarchical resource urls including the concept of 'dataspaces' and 'anchors'. 'Fragments' will be replaced by 'Nodes' e.g. GET /dataspaces/{dataspace_id}/anchors → returns Anchor-points GET /dataspaces/{dataspace_id}/anchors/{anchor-id}/nodes?xpath="..." → returns Node(s) GET /dataspaces/{dataspace_id}/anchors/{anchor-id}/nodes?schema_node_identifier="..." → returns Node(s) GET /dataspaces/{dataspace_id}/nodes&xpath="..." → returns Node(s) GET /dataspaces/{dataspace_id}/modules → returns Modules | |
| Advance queries v Simple Queries (gets) for data fragments. Do we want/need differentiatie on UTL? |
Note . The xpath could be a full unambiguous xpath returning one object or it could be partial path using wildcards etc allowing for more advanced queries return 0 or more fragments (developed over many iterations) | Team meeting Flavio,Tony,Toine,Bruno,Niamh, Rishi 8 Oct 2020: Advanced queries will implemented as advanced xpath' (and or schema node identifiers) no need for separate URLs | |
| We have no modules sets! | model files just arbitrarily group a few modules, is there a need to persist this grouping (We do have the concept of a dataspace as well) | Team meeting Flavio,Tony,Toine,Bruno,Niamh, Rishi 8 Oct 2020: The way modules are delivered i.e. grouped in files is not relevant for the CPS application. What needs to be stored for each 'anchor' is the namespace and revision of the model that describes the 'root' of that instance | |
| Treat operations with xpath and schema_node_identifier as 'queries' using POST? | xpath and schema node identifiers aren't suitable for URLs. The suggestion is to create query URLs instead and pass this data in as part of the request body | Team meeting Niamh, Toine and Rishi 10 Oct 2020 Agreed format, GET nodes resource with query details request body, applied for #11-#13 in the table below |
API definitions
Note 1. This list of URL operations is not meant to be complete or final. It is mainly a starting point to establish a pattern and naming convention for the Configuration Persistence Service.
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