Custom On-Device Validation

Here are general Custom Offline Validation guidelines for developers. This PDF includes instructions for setting up the Custom Offline Validation script for the answer validation described.

Option 1: Scanning one barcode at a time

Here’s a PDF of the filtering script to use regex to define what scan values can be captured. If the scanned value doesn’t match the regex pattern, the app user will see an error message and the scan will not be recorded.

Editing the script:
var errMsg: This is the message given to the app user when the scanned value does not match the regex pattern.
new RegExp(“REGEX_PATTERN_HERE”): You can enter several regex patterns using this format. You must escape special characters, e.g. from [\s\S] to [\\s\\S].

Option 2: Batch scanning up to 200 barcodes in a single camera view

Here’s a PDF of the filtering script to use regular expressions (“regex”) to define what scan values can be captured. If the scanned values don’t match the regex pattern, the app will automatically remove non-conforming values from the record.

Editing the script:
var errMsg: This is the message given to the app user when the scanned value does not match the regex pattern.
new RegExp(“REGEX_PATTERN_HERE”): You can enter several regex patterns using this format. You must escape special characters, e.g. from [\s\S] to [\\s\\S].

The A/B/C Barcode Matching COV alerts the app user when two or three barcodes scanned sequentially match or don’t match.

• The primary scan (“Tap to Scan”) is matched to a standard question-answer or session question-answer.
• The primary scan is matched to the response text in an associated database.
• A standard question-answer or session question-answer is matched to the response text in an associated database.
• A standard question-answer or session question-answer is matched to another standard question-answer or session question-answer.

Note: The response text match can be an exact match or a substring match. To enable this, please review our instructions about matching barcodes. Matching can be done with barcode scans or text entries.

This PDF with instructions checks your scans for a given string using RegEx. When the string matches all or part of the scanned value, the script will check your defined array for the response to give. In the example, the response gives a bin number and color for sorting assets based on their barcode value. Additionally, it gives invalid responses for any scan that does not match the other string options. The script can be used with both record-only or validate scan services as long as the service is offline. The service will work normally outside of your defined strings. Scans not in the database of a validated scans service type are invalid; scans that do not match a defined string of the array on a record-only service are recorded as valid with no response. This PDF shows a scan response HTML example.

Validation statuses can be over-written when certain criteria are met. For example, a normally valid scan can change to an invalid scan or a normally invalid scan to a valid scan based on:

• • the answer an app-user submits to a prompt (a “Question”);
  • when it detects certain text within the scanned value;
  • when it detects certain structured text within the standard response for the scanned value.

Here is an example using a yes or no question. Note that the error message at the bottom can be changed as well.

Here is an example returning a valid response even if a check-digit is not in the scanned value but is in the associated database. To clarify, that means if the database includes the value 11111111111C and the scanned value is either 11111111111C or 11111111111, both will return a valid response.

Primary and secondary scans (i.e. question-answer scans) can be combined to simply create a scan record or to optionally be validated against an associated database. So, for example, a primary scanned value of “123456789” and a secondary scanned value of “abcdefghij” can result in a fully combined value of “123456789abcdefghij” or a partially combined value of “567abc“.

In this PDF you will see a sample script for combining up to three scanned values using regular expressions for defining what top capture and combine.

How does instant count verification work? The counter is assigned credentials by the CodeREADr account administrator. They download the CodeREADr app from Apple’s App Store or from Google Play and then sign in with their issued credentials. Once signed in, the app will automatically download the administrator-supplied inventory database including the system’s current counts.

With this COV script, a database includes the items in the kit, the quantity of each item, the number of kits to assemble, and the kit ID.

Follow this guide for instructions to Kitting Verification App Setup. It includes a script to be pasted into the “Enable on-device custom validation” field on the Advanced step when creating a Validate Scans service type.

After uploading a database of kits, your users can enter the work order number and see a list of kits they need to complete for that order. Importantly, a user can complete many kits at a time rather than finishing each one individually. This is referred to as a batch.

For example, let’s say we have 25 kits in our work order and each kit contains an apple, an orange, and a banana. If our batch quantity is 1, the user will need to scan an apple, an orange, and a banana to complete the batch. If our batch quantity is 5, the user can scan 5 apples, 5 oranges, and 5 bananas in any order. Once all the fruits have been scanned for these 5 kits, the batch is complete.

This PDF document includes HTML code to show the status and messages to the app use. Paste the HTML into the Advanced step’s “Alter Response” replacement field. The pattern for this replacement is:

^([\s\S]*?)$

We recommend disabling the response label under the “Enable custom display configuration” option using this text:

{"response_label":""}

Note: This COV kitting script is a sophisticated, kit verification tool. However, if you have a limited number of kits to verify, you could instead deploy a service with an associated database of items for each kit. The app user would select the appropriate kit to start processing. A kit could include multiples of the same item using either conditional validation overrides (no-coding) or a simple COV override (simple coding). Also, duplicate checking could be enabled with a reset. If you need help, please contact us at support@codereadr.com

You can prevent duplicates of certain assets as they are loaded onto a truck, warehouse, dock, etc. Follow these instructions for loading assets for delivery to dealers. In the script, asset IDs are scanned and added to a database along with a secondary scan. Here, the second scan is a driver ID. The driver ID is added as the response text for the asset ID in the database. [Note: This script is for online services and requires the “Custom Validation Middleware” feature. Email support to get access.]

Simultaneously, duplicate checking is turned on for specified asset prefixes. Finally, this script allows for duplicate checking reset based on the device time specified.

For unloading, the database containing the asset IDs and corresponding driver IDs can be used for a service to check that the scanned asset ID is in the database. Additionally, using A/B compare, you can check that the dealer ID for that value matches the dealer ID in the database.

Please contact support@codereadr.com with your specific requirement. For some applications, we will quote writing the script for you.