This “Primer” is intended to give developers an introduction to the use of the NGSI-LD API. The goal is to give developers, especially those who build applications and services using the NGSI-LD API, a getting started guide explaining the API with typical examples. Examples for creating, updating and deleting information, as well as formulating synchronous or asynchronous requests (subscription / notification) are provided. The emphasis is on typical usage rather than the completeness of all features.

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