Navigating History

In this section, we will see how to look back at historical states of nodes and edges, and run traversals and shortest-path queries on them. As with the previous exercises, we will use the HRMS example as the backdrop in which we keep building the narrative.
RecallGraph's History API supports 3 endpoints:
1.
A SHOW endpoint to rebuild previous states of nodes at specified points in time within a specified scope, with support for grouping, sorting, slicing and post-filtering.
2.
A TRAVERSE endpoint to run AQL-like traversals over historic data, with the option to post-filter on vertex and edge sets.
3.
A k SHORTEST PATHS endpoint to run weighted shortest path queries over historic versions of the graph.
We will explore these endpoints in the sections linked below:
Show
Traverse
k Shortest Paths

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