Added Power BI semantic model refresh

README.md

@@ -50,11 +50,12 @@ The notebook contains samples on how to send messages to [Azure Event Hubs](http
 - Send events using a SAS Token
 - Send events using a Managed Identity
 
-### [Power BI](./power-bi.ipynb)
+### Power BI
 
-The notebook shows how DAX queries can be executed from Azure SQL DB using the `executeQueries` REST endpoint provided by Power BI datasets
-
-- Execute DAX queries in Power BI
+- [Execute DAX queries in Power BI](./power-bi.ipynb)
+  The notebook shows how DAX queries can be executed from Azure SQL DB using the `executeQueries` REST endpoint provided by Power BI semantic models
+- [Refresh a semantic model](./power-bi-semantic-model-refresh.ipynb)
+  The notebook shows how a semantic model can be refreshed from Azure SQL DB & SQL Server using the `refreshes` REST endpoint provided by Power BI semantic models
 
 ### [Azure Cognitive Services](./azure-cognitive-services.ipynb)
 

power-bi-semantic-model-refresh.ipynb

@@ -0,0 +1,147 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "c81e9b8a",
+   "metadata": {},
+   "source": [
+    "# Refresh Power BI Semantic Model via REST endpoint\n",
+    "\n",
+    "Power BI allows the refresh of a published model via the refreshes endpoint.\n",
+    "\n",
+    "[Datasets - Refresh Dataset In Group](https://learn.microsoft.com/en-us/rest/api/power-bi/datasets/refresh-dataset-in-group?wt.mc_id=MVP_449122&source=post_page-----1e52165e36ab---------------------------------------)\n",
+    "\n",
+    "Authetication can be done via SPN (Microsoft Entra Application)."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "016f5c1e",
+   "metadata": {},
+   "source": [
+    "# Prerequisites\n",
+    "\n",
+    "To trigger the refresh, we first need to collect the following information:\n",
+    "- The tenant ID that hosts the semantic model\n",
+    "- The client ID of the SPN object\n",
+    "- The secret of the SPN object\n",
+    "- The semantic model ID\n",
+    "- The workspace ID"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "f0addc61",
+   "metadata": {},
+   "source": [
+    "# Get Oauth2 Token for the SPN\n",
+    "\n",
+    "We can request for a token for our SPN leveraging **sp_invoke_external_rest_endpoint** and we save it an @access_token variable."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "7eeee18b",
+   "metadata": {
+    "vscode": {
+     "languageId": "sql"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "\n",
+    "DECLARE @tenant_id NVARCHAR(100) = N'<redacted>'\n",
+    "    ,@client_id NVARCHAR(100) = N'<redacted>'\n",
+    "    ,@client_secret NVARCHAR(200) = N'<redacted>'\n",
+    "    ,@workspace_id NVARCHAR(100) = N'<redacted>'\n",
+    "    ,@dataset_id NVARCHAR(100) = N'<redacted>'\n",
+    "\n",
+    "DECLARE @scope NVARCHAR(200) = \n",
+    "  N'https://analysis.windows.net/powerbi/api/.default';\n",
+    "\n",
+    "DECLARE @response NVARCHAR(MAX);\n",
+    "\n",
+    "DECLARE @url NVARCHAR(400) = \n",
+    "  N'https://login.microsoftonline.com/' \n",
+    "    + @tenant_id \n",
+    "    + N'/oauth2/v2.0/token';\n",
+    "\n",
+    "DECLARE @headers NVARCHAR(MAX) = \n",
+    "  N'{\"Content-Type\":\"application/x-www-form-urlencoded\"}';\n",
+    "\n",
+    "DECLARE @body NVARCHAR(MAX) =\n",
+    "  N'client_id=' + @client_id \n",
+    "  + N'&scope=' + @scope \n",
+    "  + N'&client_secret=' + @client_secret \n",
+    "  + N'&grant_type=client_credentials';\n",
+    "  \n",
+    "EXEC sp_invoke_external_rest_endpoint\n",
+    "  @method = 'POST'\n",
+    "  ,@url = @url\n",
+    "  ,@headers = @headers\n",
+    "  ,@payload = @body\n",
+    "  ,@credential = NULL\n",
+    "  ,@response = @response OUTPUT;\n",
+    "  \n",
+    "DECLARE @access_token NVARCHAR(MAX) = \n",
+    "  JSON_VALUE(@response, N'$.result.access_token');"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "ae9bc94d",
+   "metadata": {},
+   "source": [
+    "# Refresh the semantic model\n",
+    "\n",
+    "Once you have the token stored in the @access_token variable, you can use it to call the Power BI Refresh API."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "0dcaf0b0",
+   "metadata": {
+    "vscode": {
+     "languageId": "sql"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "DECLARE @refreshUrl NVARCHAR(400) =\n",
+    "  N'https://api.powerbi.com/v1.0/myorg/groups/' \n",
+    "    + @workspace_id \n",
+    "    + N'/datasets/' \n",
+    "    + @dataset_id \n",
+    "    + N'/refreshes';\n",
+    "\n",
+    "DECLARE @refreshHeaders NVARCHAR(MAX) =\n",
+    "    N'{\"Authorization\":\"Bearer ' \n",
+    "      + @access_token \n",
+    "      + N'\",\"Content-Type\":\"application/json\"}';\n",
+    "\n",
+    "DECLARE @refreshBody NVARCHAR(MAX) = N'{\"notifyOption\": \"NoNotification\"}';\n",
+    "\n",
+    "DECLARE @refreshResponse NVARCHAR(MAX);\n",
+    "\n",
+    "EXEC sp_invoke_external_rest_endpoint\n",
+    "    @method = 'POST'\n",
+    "    ,@url = @refreshUrl\n",
+    "    ,@headers = @refreshHeaders\n",
+    "    ,@payload = @refreshBody\n",
+    "    ,@credential = NULL\n",
+    "    ,@response = @refreshResponse OUTPUT;    \n",
+    "\n",
+    "SELECT @refreshResponse;"
+   ]
+  }
+ ],
+ "metadata": {
+  "language_info": {
+   "name": "python"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}