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Retrieve EnvironmentVariableValue in JavaScript

Posted in Power Platform, and Dynamics 365

In my private project (Key Box), I stored a JSON configuration in an Environment Variable. To retrieve its value, I had could use two queries. The first query to retrieve the GUID of the Environment Variable Definition and the second query to retrieve the Environment Variable Value. But there is a better way: the RetrieveEnvironmentVariableValue WebApi function.

Below is the async function I wrapped around it to make it easy reusable.

Retrieve EnvironmentVariableValue JavaScript

async function getEnvironmentVariableValue (schemaName) {
      DefinitionSchemaName: schemaName,
      getMetadata: function () {
        return {
          boundParameter: null,
          parameterTypes: { 
            DefinitionSchemaName: { 
              typeName: "Edm.String", 
              structuralProperty: 1, 
            } ,
          operationType: 1,
          operationName: "RetrieveEnvironmentVariableValue",
    .then(function success(response) {
      if (response.ok) {
        return response.json();
    .then(function (responseBody) {
      return responseBody["Value"];
    .catch(function (error) {

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