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LinkSmart Historical Datastore (HDS) is a modular service for time-series data storage. This service is designed to store time-series data on low power devices and single-board computers and to accept data from constrained devices. HDS uses Sensor Measurement Lists (SenML) as the data format for storage and retrieval. Metadata related to the data is also stored in HDS using registry API.

HDS offers two APIs:

• Registry API : Submission, retrieval and updation of meta-data for sensor measurements (over HTTP and gRPC).
• Data API : Submission,retrieval and deletion of sensor measurements (HTTP and gRPC). It is also possible to publish measurements via MQTT or gRPC. Also it is possible to subscribe to the incoming measurements using gRPC.

Getting Started

• Deployment
• Configuration
• Visualization - Grafana Plugin
• Tutorial

API Description

• OpenAPI Documentation
• API Overview

Other Tools

• Data Exporter

Developer Documentation

• Component Diagram