Add sample value provider (#17548)

samples/sample-resource-deployment/src/sampleValueProvider.ts

@@ -0,0 +1,34 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as rd from 'resource-deployment';
+
+/**
+ * This is a sample value provider used to demonstrate how values are received and can be used to generate the return value.
+ */
+export class SampleValueProvider implements rd.IValueProvider {
+	/**
+	 * This ID corresponds to the `providerId` property in the `valueProvider` properties of the package.json definitions.
+	 */
+	readonly id = 'sample-resource-deployment.sample-value-provider';
+
+	/**
+	 *
+	 * @param triggerValues This is an object whose keys correspond to the `variableName` (or `label` if no `variableName` is given) property of the trigger fields.
+	 * This will contain an entry for every trigger field defined in the `valueProvider` property on the target field - even if those values are empty/undefined.
+	 * @returns The calculated input type to return. This is expected to match the type of the target field (so string for text, boolean for checkbox, etc)
+	 */
+	public async getValue(triggerValues: { [key: string]: rd.InputValueType; }): Promise<rd.InputValueType> {
+		Object.values(triggerValues)
+		// Because this example is used by two different fields we have logic here to handle determining which one it came from.
+		// If you are making a generic provider that you don't want to have know about each field that uses it you can use
+		// Object.values(triggerValues) to get the array of values and operate on those directly.
+		if (triggerValues['AZDATA_NB_VAR_SAMPLE_VALUE_PROVIDER_MULTIPLE_PLACE'] !== undefined) {
+			return `Hello ${triggerValues['AZDATA_NB_VAR_SAMPLE_VALUE_PROVIDER_MULTIPLE_NAME']} from ${triggerValues['AZDATA_NB_VAR_SAMPLE_VALUE_PROVIDER_MULTIPLE_PLACE']}!`;
+		} else {
+			return `Hello ${triggerValues['AZDATA_NB_VAR_SAMPLE_VALUE_PROVIDER_SINGLE_NAME']}!`;
+		}
+	}
+}