Generating Random Numbers in Xano

Hey there! In this blog post, we'll dive into how you can effortlessly generate random numbers using Xano's powerful capabilities. Whether you're a seasoned developer or just starting your no-code journey, this guide will walk you through the process step by step.

The Scenario

Let's imagine you're building an application that deals with promotional codes. Whenever a new deal is created, you want to generate a unique promo code to associate with it. This code should consist of three random number segments separated by hyphens.

For instance, a promo code could look like this: `1234-5678-9012`.

Step 1: Set Up Your Data Model

Before we start generating random numbers, we need to set up our data model. In this example, we'll create a simple table called "deals" with the following columns:

• `name` (text)
• `deal_amount` (text)
• `promo_code` (text)

Step 2: Create a Basic Endpoint

Next, we'll create an endpoint that adds a new record to our "deals" table. This endpoint will accept the `name` and `deal_amount` as inputs.

1. Click the "+" button to create a new endpoint.
2. Name your endpoint (e.g., "Add Deal").
3. Select the "Add Record" function.
4. Choose the "deals" table from the dropdown.
5. In the "Fields" section, map the `name` and `deal_amount` inputs to their respective columns.
6. For the `promo_code` column, we'll leave it blank for now. We'll generate the promo code dynamically using Xano's random number function.

Step 3: Hide the Promo Code Input

Since we don't want users to provide the promo code manually, we should hide the corresponding input from the API.

1. Click the "Inputs" tab.
2. Find the `promo_code` input.
3. Toggle the eye icon to hide the input.

Step 4: Generate Random Numbers

Now for the fun part! We'll use Xano's random number function to generate three separate random numbers, which we'll then combine to create our promo code.

1. Click the "+" button in the "Data" section.
2. Navigate to the "Security" category and select the "Random Number" function.
3. Set the minimum and maximum values for your random number range. In our example, we'll use a minimum of `999` and a maximum of `9999`.
4. Click "Add" and store the random number as `value1`.
5. Repeat steps 2-4 twice more, storing the new random numbers as `value2` and `value3`.

Step 5: Combine the Random Numbers

With our three random numbers generated, we can now combine them to create the promo code.

1. In the "Add Record" function, locate the `promo_code` field.
2. Clear any existing value in the field.
3. Type `%s-%s-%s` in the field. These placeholders will be replaced with our random number values.
4. Click the "Add Filter" button and select the "sprintf" filter.
5. In the "Arguments" section, enter `value1`, `value2`, and `value3` (separated by commas).

Step 6: Test It Out!

That's it! You've successfully configured your endpoint to generate random promo codes. Let's test it out:

1. Fill in the `name` and `deal_amount` inputs with sample values.
2. Execute the endpoint.
3. Check the response to see the newly generated promo code.
4. Run the endpoint again to confirm that a new, unique promo code is generated each time.

Congratulations! You've just learned how to easily implement random number generation in Xano. This technique can be applied to various use cases, such as generating unique IDs, coupon codes, or any scenario that requires random values.

Remember, Xano's visual interface and no-code approach make it incredibly easy to build powerful backend services without writing a single line of code. So keep exploring, experimenting, and unleashing your creativity with Xano!