json-multi-schema-resolver.html

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	<p>Node to determine the JSON Schema corresponding to a given message, based on a configurable list of schemas.</p>
	<ul>
		<li>The node will try to determine the URL of the JSON Schema to use for a given JSON payload received in <code>msg.payload</code></li>
		<li>To do so, the node uses the configuration file which URL is given as a <code>mappingsUrl</code> property.</li>
		<li>The URL of the corresponding JSON Schema is returned in <code>msg.schemaUrl</code>.</li>
		<li>The original JSON data is kept unaltered in <code>msg.payload</code></li>
		<li>Errors are returned on <code>msg.error</code></li>
	</ul>
	<p>Example of configuration file containing the mappings of schemas: </p>
	<pre>
[
	{
		"query": "type",
		"cases": {
			"AeroAllergenObserved": "https://smart-data-models.github.io/data-models/specs/Environment/AeroAllergenObserved/schema.json",
			...
			"Vehicle": "https://smart-data-models.github.io/data-models/specs/Transportation/Vehicle/Vehicle/schema.json",
			"WasteContainer": "https://smart-data-models.github.io/data-models/specs/WasteManagement/WasteContainer/schema.json",
		}
	},
	{
		"query": "...",
		"cases": {
			...
		}
	}
]
	</pre>
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