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How to Set Up Field-Level Validation in Configuration Flows?

Learn how to add field-level validation in configuration flows to enforce required inputs and proper URL formatting before submission.

To enforce input validation at the field level within your configuration flows, follow these steps:

Steps to Enable Field Validation

  1. Navigate to Your Configuration Flow Open the specific configuration flow where validation is needed.

  2. Select the Target Step Click on the step you want to apply validation to.

  3. Open Step Settings Click on the three-dot menu (⋮) associated with the step.

  1. Click on Configure

  1. Enable Submit Validation In the configuration pane, select the Validation tab and toggle Enable Submit Validation.

Validation Script: Empty Field and URL Format Check

Paste the following JavaScript function into the validator field:

jsCopyEditasync function validator(data = [
  {
    "Channel Name": "",
    "Webhook URL": ""
  }
]) {
  try {
    if (!data || (typeof data !== "object" && !Array.isArray(data))) {
      return { general: "Invalid data format" };
    }

    if (!Array.isArray(data)) {
      return {};
    }

    const errors = data.map((item) => {
      const entryErrors = {};

      const channelName = item["Channel Name"];
      const webhookUrl = item["Webhook URL"];

      if (!channelName || channelName.trim() === "") {
        entryErrors["Channel Name"] = "Channel Name is required";
      }

      if (!webhookUrl || webhookUrl.trim() === "") {
        entryErrors["Webhook URL"] = "Webhook URL is required";
      } else {
        try {
          new URL(webhookUrl); // throws if invalid
        } catch (_) {
          entryErrors["Webhook URL"] = "Invalid URL format";
        }
      }

      return Object.keys(entryErrors).length > 0 ? entryErrors : null;
    });

    return errors.filter((err) => err !== null).length > 0 ? errors : [];
  } catch (error) {
    return { general: "Failed to validate the data" };
  }
}

After You Add the Script

  • Click Save.

  • Redeploy your configuration flow.

What This Validator Does?

  • Ensures both "Channel Name" and "Webhook URL" are not empty.

  • Validates that "Webhook URL" is in a correct URL format.

  • If either field fails, the form will block submission and show appropriate error messages.

PreviousHow to Set up a Configuration Flow?NextHow to Customize your Error Notification Flow?

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