This is a simple ARM Template for a Logic App

template.json

{
    "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "workflows_PoC_CI_CD_name": {
            "type": "String"
        },
        "connections_outlook_externalid": {
            "type": "String"
        },
        "secret": {
            "type": "securestring",
            "metadata": {
                "description": "The secret stored in the Azure Key Vault"
            }
        }
    },
    "variables": {
    },
    "resources": [
        {
            "type": "Microsoft.Logic/workflows",
            "apiVersion": "2017-07-01",
            "name": "[parameters('workflows_PoC_CI_CD_name')]",
            "location": "westeurope",
            "properties": {
                "state": "Enabled",
                "definition": {
                    "$schema": "https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#",
                    "contentVersion": "1.0.0.0",
                    "parameters": {
                        "$connections": {
                            "defaultValue": {
                            },
                            "type": "Object"
                        }
                    },
                    "triggers": {
                        "manual": {
                            "type": "Request",
                            "kind": "Http",
                            "inputs": {
                                "schema": {
                                }
                            }
                        }
                    },
                    "actions": {
                        "Initialize_variable_Secret": {
                            "runAfter": {
                            },
                            "type": "InitializeVariable",
                            "inputs": {
                                "variables": [
                                    {
                                        "name": "Secret",
                                        "type": "string",
                                        "value": "[parameters('secret')]"
                                    }
                                ]
                            }
                        },
                        "Send_an_email_(V2)": {
                            "runAfter": {
                                "Initialize_variable_Secret": [
                                    "Succeeded"
                                ]
                            },
                            "type": "ApiConnection",
                            "inputs": {
                                "body": {
                                    "Body": "<p>this is the @{variables('Secret')}</p>",
                                    "Subject": "Test",
                                    "To": "delucagiuliano@gmail.com"
                                },
                                "host": {
                                    "connection": {
                                        "name": "@parameters('$connections')['outlook']['connectionId']"
                                    }
                                },
                                "method": "post",
                                "path": "/v2/Mail"
                            }
                        }
                    },
                    "outputs": {
                    }
                },
                "parameters": {
                    "$connections": {
                        "value": {
                            "outlook": {
                                "connectionId": "[parameters('connections_outlook_externalid')]",
                                "connectionName": "outlook",
                                "id": "/subscriptions/3d0b8544-e3c0-42f5-bffd-7577fc2dc70e/providers/Microsoft.Web/locations/westeurope/managedApis/outlook"
                            }
                        }
                    }
                }
            }
        }
    ]
}