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Postman Setup

The Sezzle team has prepared a public Postman collection so merchants can quickly create customers (Sezzle users), sessions, and orders for sandbox testing.

Download and Install Postman

First, download and install the Postman application. To do this:

  1. Go to www.postman.com/downloads/
  2. Click Download the App.
  3. When the installation file has finished downloading, click the file to install the application.
  4. Follow installation prompts on the screen.

Add Sezzle Gateway Collection

When installation is complete, follow these steps to add the Sezzle Gateway collection to Postman.

  1. Click Run in Postman below to run the collection.

Run in Postman

  1. In the Web page that opens, select your operating system.
  2. Click Open Postman if prompted.
  3. In Postman, the Sezzle Gateway collection is now displayed in the Collections tab.

Edit collection variables

Next, copy your credentials from the Sandbox Dashboard into the Sezzle Gateway collection variables in Postman. These are identifying variables that will apply across the collection.

To add your credentials to Postman:

  1. In Postman, select Sezzle Gateway to open the collection tab.
  2. In the collection tab, click Variables. This tab will store your credentials that apply across the collection.
  3. To access your credentials, log in to the Sandbox Dashboard
  4. Go to Settings > API Keys - your sandbox credentials are here.
  5. In Postman, paste your credentials into both INITIAL VALUE and CURRENT VALUE columns for:
  • public_key
  • private_key