![]() |
VOOZH | about |
In this article we show how to use the CData API Server to write SAPUI5 apps that leverage the capabilities of the Webflow API, without writing to a back-end database. The API Server is a lightweight Web application that runs on your server and produces OData feeds of Webflow data. OData is the standard for real-time data access over the Web and has built-in support in SAPUI5 and OpenUI5.
If you have not already done so, download the CData API Server. Once you have installed the API Server, follow the steps below to begin producing secure Webflow OData services:
To work with Webflow data from SAPUI5, we start by creating and configuring a Webflow connection. Follow the steps below to configure the API Server to connect to Webflow data:
Webflow uses OAuth 2.0 authentication to ensure secure access to sites, CMS collections, e-commerce data, and other resources. This authentication method allows you to securely connect to your Webflow workspace and manage resources with proper authorization.
To set up OAuth authentication:
The Webflow API Profile requires the following OAuth scopes:
Next, create a user to access your Webflow data through the API Server. You can add and configure users on the Users page. Follow the steps below to configure and create a user:
Having created a user, you are ready to create API endpoints for the Webflow tables:
Having configured a connection to Webflow data, created a user, and added resources to the API Server, you now have an easily accessible REST API based on the OData protocol for those resources. From the API page in API Server, you can view and copy the API Endpoints for the API:
π API EndpointsIn this article the user views and interacts with Webflow data through an SAPUI5 table control. Table columns will be automatically detected from the metadata retrieved from the API Server's API endpoint. We define the following table in a separate View.view.xml file:
<mvc:View
controllerName="sap.ui.table.sample.OData2.Controller"
xmlns="sap.ui.table"
xmlns:mvc="sap.ui.core.mvc"
xmlns:u="sap.ui.unified"
xmlns:c="sap.ui.core"
xmlns:m="sap.m">
<m:Page
showHeader="false"
enableScrolling="false"
class="sapUiContentPadding">
<m:content>
<Table
id="table"
selectionMode="MultiToggle"
visibleRowCount="10"
enableSelectAll="false"
rows="{/Sites}"
threshold="15"
enableBusyIndicator="true"
columns="{
path: 'meta>/dataServices/schema/[${namespace}===\'CData\']/entityType/[${name}===\'Sites\']/property',
factory: '.columnFactory'
}">
<toolbar>
<m:Toolbar>
<m:Title text="Webflow Sites"></m:Title>
</m:Toolbar>
</toolbar>
<noData>
<m:BusyIndicator class="sapUiMediumMargin"/>
</noData>
</Table>
</m:content>
</m:Page>
</mvc:View>
In SAPUI5, you do not need to write any OData queries; an ODataModel instance handles the application's data access commands. The API Server then translates the queries into Webflow API calls.
The controller processes user input and represents information to the user through a view. Define the controller in a new file, Controller.controller.js. Instantiate the model in the onInit function -- you will need to replace the placeholder values for the URL to the API Server, a user allowed to access the OData endpoint of the API Server, and the authtoken for the user.
sap.ui.define([
"sap/ui/core/mvc/Controller",
"sap/ui/model/odata/v2/ODataModel",
"sap/ui/model/json/JSONModel",
"sap/ui/table/Column",
"sap/m/Text",
], function(Controller, ODataModel, JSONModel, Column, Text ) {
"use strict";
return Controller.extend("sap.ui.table.sample.OData2.Controller", {
onInit : function () {
var oView = this.getView();
var oDataModel = new ODataModel("http://myserver/api.rsc/",{user: "MyUser", password: "MyAuthToken"});
oDataModel.getMetaModel().loaded().then(function(){
oView.setModel(oDataModel.getMetaModel(), "meta");
});
oView.setModel(oDataModel);
var oTable = oView.byId("table");
var oBinding = oTable.getBinding("rows");
var oBusyIndicator = oTable.getNoData();
oBinding.attachDataRequested(function(){
oTable.setNoData(oBusyIndicator);
});
oBinding.attachDataReceived(function(){
oTable.setNoData(null); //use default again ("no data" in case no data is available)
});
},
onExit : function () {
},
columnFactory : function(sId, oContext) {
var oModel = this.getView().getModel();
var sName = oContext.getProperty("name");
var sType = oContext.getProperty("type");
var iLen = oContext.getProperty("maxLength");
iLen = iLen ? parseInt(iLen, 10) : 10;
return new Column(sId, {
sortProperty: sName,
filterProperty: sName,
width: (iLen > 9 ? (iLen > 50 ? 15 : 10) : 5) + "rem",
label: new sap.m.Label({text: "{/#Sites/" + sName + "/@name}"}),
hAlign: sType && sType.indexOf("Decimal") >= 0 ? "End" : "Begin",
template: new Text({text: {path: sName}})
});
}
});
});
Create a component that contains the resources of your application. Define the following in Component.js:
sap.ui.define([
'sap/ui/core/UIComponent'
], function(UIComponent) {
"use strict";
return UIComponent.extend("sap.ui.table.sample.OData2.Component", {
metadata : {
rootView : "sap.ui.table.sample.OData2.View",
dependencies : {
libs : [
"sap.ui.table",
"sap.ui.unified",
"sap.m"
]
},
config : {
sample : {
stretch : true,
files : [
"View.view.xml",
"Controller.controller.js"
]
}
}
}
});
});
To complete the MVC application, simply add the bootstrap and initialization code. Add these directly to index.html:
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="x-ua-compatible" content="ie=edge">
<meta charset="utf-8">
<title>Webflow Sites</title>
<script id="sap-ui-bootstrap"
src="https://openui5.hana.ondemand.com/resources/sap-ui-core.js"
data-sap-ui-libs="sap.m"
data-sap-ui-theme="sap_bluecrystal"
data-sap-ui-xx-bindingSyntax="complex"
data-sap-ui-preload="async"
data-sap-ui-compatVersion="edge"
data-sap-ui-resourceroots='{"sap.ui.table.sample.OData2": "./", "sap.ui.demo.mock": "mockdata"}'>
</script>
<!-- application launch configuration -->
<script>
sap.ui.getCore().attachInit(function() {
new sap.m.App ({
pages: [
new sap.m.Page({
title: "Webflow Sites",
enableScrolling : false,
content: [ new sap.ui.core.ComponentContainer({
height : "100%", name : "sap.ui.table.sample.OData2"
})]
})
]
}).placeAt("content");
});
</script>
</head>
<!-- UI Content -->
<body class="sapUiBody" id="content" role="application">
</body>
</html>
The resulting SAPUI5 table control reflects any changes to a table in the remote Webflow data. You can now browse and search current Webflow data.
π A table in SAPUI5 that reflects changes to the data in real time. (Salesforce is shown.)Learn more or sign up for a free trial:
CData API Server