This sample application allows you to see mParticle data events and attributes displayed in an eCommerce UI as you perform them and experiment with implementing an mParticle data plan yourself. Effective cross-functional data planning is a great way to ensure data quality throughout the data lifecycle and avoid time-intensive debugging for data engineers. In this and , respectively, we covered how to create data plans using the mParticle Data Plan Builder and leverage mParticle’s Live Stream to debug data errors before they reach your downstream systems. article video However, between developing a data plan and validating incoming data lies a crucial step that falls squarely on the shoulders of engineers: Implementing data collection. Without effective tools to aid in implementation, writing data collection code can be an error-prone time sink for technical teams. In many scenarios, developers find themselves needing to translate a static data plan into
production code. This not only diverts engineering cycles away from core objectives––it increases the likelihood of data collection errors as well. It is easy to imagine how a hyphen in the data plan could inadvertently be written as an underscore in the code, for example. Once this error is discovered further along in the ETL pipeline, data engineers will be called upon to track down its origin and correct the source code. Luckily, mParticle’s Data Planning tools and templates eliminate these problems by giving developers the resources to implement data collection efficiently, accurately, and consistently across platforms. In this article, we’ll use this as our development environment to demonstrate implementing an mParticle data plan using the and the . Additionally, we’ll talk through some of the choices we made in creating the sample app itself, which we hope you'll find to be a helpful playground as you learn more about implementing data collection. eCommerce sample application Data Plan Builder Snippet tool Implement Data collection with mParticle’s Data Planning Tools Step 1: Create a data plan Before we implemented data collection, we needed a data plan to work from. Using mParticle’s (which is one of six vertical-specific templates that our Data Plan Builder provides), we instantly had a set of retail-specific identities, events, and attributes defined for us to start with. retail data plan template Step 2: Turn the data plan into JSON From there, we could use the Data Plan Builder’s built-in script to automatically translate the data plan (as defined in the tabs of the Google Sheet) into machine-readable JSON: Step 3: Automatically generate event collection code With this JSON in hand, we used the mParticle to automatically generate the data collection code that we would implement in our application. This Snippet tool’s interface immediately represents each event in the data plan as a discrete code block that can be transported directly into your source code: Snippet tool In this case we used the “Web SDK” option (which outputs JavaScript). As you can see in the example above, the interface also supports code generation for iOS (Swift and Objective-C) as well as Android (Kotlin and Java). Since the Snippet tool generates this code directly from the JSON representing the data plan, it eliminates many of the errors that commonly arise when manually translating data plans into code––for example, misspelling attribute names or using incorrect data types. Additionally, having a tool capable of generating data collection code across major platforms from the same JSON source addresses another significant challenge of implementing a data plan: Maintaining consistently across data inputs. This can be especially challenging at large enterprises with a variety of touchpoints, where it is common to have separate engineering teams handling Web, iOS, Android and OTT products. Step 4: Implement events throughout the application While the Snippet tool does the work of generating the event collection code, we still have to implement these events throughout the application using the appropriate user-based triggers to fire them. Many of our commerce events in this application are tied to users viewing or customizing products. Since we’re using a component-based architecture with React, our application has one template, , that we use to dynamically display each individual product to the user. Therefore, we only had to implement each product-related event once on this page for it to work for each product the site displays. ItemView.js For example, let’s look at how we implemented the Product Detail event, which sends three attributes, id, name, and categories, to mParticle: useEffect(() => {
     // isBrowser refers to a variable that checks whether the window object is defined
    if (isBrowser) {      
      let customAttributes = {
        id: props.pageContext.content.id,
        name: props.pageContext.content.name, 
        categories: props.pageContext.content.categories
      }
      // Log event to mParticle 
      window.mParticle.logPageView("Product", customAttributes)
      // Display event properties in UI	
      toast(
        <ToastSuccess
          eventName="Product"
          eventCategory="Screen View"
          product={customAttributes.name}
        ></ToastSuccess>,
        {
          position: toast.POSITION.TOP_RIGHT,
          className: "success-toast",
        }
      )
    }
  }) Since we wanted this event to run each time the user views a new product, we placed it inside the useEffect hook, which will automatically run each time the component renders. Inside useEffect, we initialize an object called customAttributes which we use to store the event attributes: id, name, and categories. We then pass these attributes as the second argument to logPageView, which forwards this event along to mParticle. How We Built This Data Planning Sample App What tools did we use? We bootstrapped our data planning sample app with this , which provides an out-of-the-box retail user interface built on React, Next.js, and Gatsby. Since most developers working on eCommerce products today leverage these tools or similar component-based frameworks, we felt this stack would be ideal for showcasing this process. Jamstack starter template Displaying events in the user interface As you , you will see notifications appear in the top-right corner of the as you take actions including: browse through the live deployment of this user interface Viewing different product pages Customizing the color/configuration of products Adding or removing products from your cart Selecting a username Changing your marketing consent status Purchase the items in your cart To add this feature, we used , an awesome and easily customizable React package for adding notifications to a user interface. Each time we log an event in our sample app, we make a call to toast, passing in our custom-made notification component as the first argument, and an object containing some styling information as the second: React Toastify toast(
        <ToastSuccess
          eventName="Product"
          eventCategory="Screen View"
          product={customAttributes.name}
        ></ToastSuccess>,
        {
          position: toast.POSITION.TOP_RIGHT,
          className: "success-toast",
        }
      ) Experiment With This Sample App Using Your Own mParticle Workspace We invite you to experiment with and the and explore how you can easily build and implement data plans that capture the customer events and user identities that matter to your business. this application Data Plan Builder Tools/Resources discussed in this post: Data plan template (Generic) Data plan template (Retail) Snippet tool eCommerce sample app (repository) eCommerce sample app (live) React Toastify Check out on how to protect data quality from collection to activation! more resources

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