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Loading the JavaScript Library

Use the

clientLibrary

asset path and

clientLibraryIntegrity

value that is returned by the capture context response to invoke Unified Click to Pay.

You must retrieve these values from the

clientLibrary

and

clientLibraryIntegrity

fields that are returned in the JWT from

https://apitest.cybersource.com/uctp/v1/sessions

"data": {
    "clientLibrary": "[EXTRACT clientLibrary VALUE from here]",
    "clientLibraryIntegrity": "[EXTRACT clientLibraryIntegrity VALUE from here]"
  }

You can use these values to create your script tags:

<script src="[INSERT clientLibrary VALUE HERE]"
integrity=”[INSERT clientLibraryIntegrity VALUE
HERE]” crossorigin=”anonymous”></script>
<script>
var vsdk = window.VSDK
</script>

You must perform this process for each transaction, as these values are unique for each transaction. You must avoid hard-coding values for the

clientLibrary

and

clientLibraryIntegrity

fields to prevent client-side errors.

IMPORTANT

Use the

clientLibrary

and

clientLibraryIntegrity

parameter values in the capture context response to obtain the Unified Click to Pay JavaScript library URL and the integrity value. This ensures that you are always using the most up-to-date library and protects against fraud. Do not hard-code the Unified Click to Pay JavaScript library URL or integrity value.

When you load the library, the capture context from your initial server-side request is used to invoke the accept function.