In a previous article, I showed you how to create a Price Rule with the Postman, Price rule is a necessary condition to create a discount code. You can define the parameters for a discount with the Price Rule resource, but you’ll need to create associated discount codes for customers to use. This is a reason today I will show you how to create, update and delete a discount code with Postman In Shopify. 

Create A Discount Code Using Postman In Shopify

Step 1: Generate API credentials from the Shopify admin

• Log in to your Shopify admin
• Go to Apps – Manage private apps

• Click Create a new private app
• In the App details section, enter a name for your app, and an emergency developer email
• In the Admin API section, select the areas of your store that you want the app to access

• Click Save

The Admin API section displays the app’s API key and password when you save the app’s details. 

Step 2: Create a discount code using Postman in Shopify

Before creating a discount code using Postman, you need to create a Price Rule. Remember that Price Rule ID to use in this step. 

• Log in to your Postman and create a new workspace
• Create a new POST with this URL:

https://{username}:{password}@{shop}.myshopify.com/admin/api/{api-version}/{resource}.json
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Code language: JavaScript (javascript)

1. {username} – The API key that you generated.
2. {password} – The API password that you generated.
3. {shop} – The name of your development store.
4. {api-version} – The supported API version that you want to use.
5. {resource} – A resource endpoint from the REST Admin API.

Or you can copy this example in the Shopify Admin, remember change {resource} to {price_rules/price rule ID/discount_codes}:

https://33a72f01e02987636e1c1a9a4e95c840:[email protected]/admin/api/2021-10/price_rules/1001616998463/discount_codes.json
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Code language: JavaScript (javascript)

• Paste the URL above.

In the body section, enter this code, then click Send.

{
    "discount_code": {
        "code": "SUMMERSALE10OFF"
    }
}
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Code language: JSON / JSON with Comments (json)

Response:

The API will return all information about the created discount code.

{
    "discount_code": {
        "id": 12231414743103,
        "price_rule_id": 1001616998463,
        "code": "SUMMERSALE10OFF",
        "usage_count": 0,
        "created_at": "2021-12-16T16:44:57+09:00",
        "updated_at": "2021-12-16T16:44:57+09:00"
    }
}
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Code language: JSON / JSON with Comments (json)

Step 3: Verify The Result

In the Shopify Admin, Choose Discounts 

As you can see the discount code has been created successfully.

Update An Existing Discount Code Using Postman In Shopify

Step1: Update An Existing Discount Code Using Postman In Shopify

• Create a new PUT with this URL:

https://{username}:{password}@{shop}.myshopify.com/admin/api/{api-version}/{resource}.json
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Code language: JavaScript (javascript)

Or you can copy this example in the Shopify Admin, remember change {resource} to {price_rules/price rule ID/discount_codes/discount code ID}:

https://33a72f01e02987636e1c1a9a4e95c840:[email protected]/admin/api/2021-10/price_rules/1001616998463/discount_codes/12231414743103.json


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Code language: JavaScript (javascript)

• Paste the URL above.

In the body section, enter this code, then click Send.

{
    "discount_code": {
        "Id":12231414743103,
        "code": "WINTERSALE10OFF"
    }
}

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Code language: JSON / JSON with Comments (json)

Response:

The API will return all information about the updated discount code.

{
    "discount_code": {
        "id": 12231414743103,
        "price_rule_id": 1001616998463,
        "code": "WINTERSALE10OFF",
        "usage_count": 0,
        "created_at": "2021-12-16T16:44:57+09:00",
        "updated_at": "2021-12-16T16:46:26+09:00"
    }
}

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Code language: JSON / JSON with Comments (json)

Step 2: Verify the Updated Discount Code

In Admin, choose Discounts 

As you can see the discount code has been updated. 

Delete A Discount Code Using Postman In Shopify

Step 1: Delete A Discount Code Using Postman In Shopify

• Create a new DELETE with this URL:

https://{username}:{password}@{shop}.myshopify.com/admin/api/{api-version}/{resource}.json
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Code language: JavaScript (javascript)

Or you can copy this example in the Shopify Admin, remember change {resource} to {price_rules/price rule ID/discount_codes/discount code ID}:

https://33a72f01e02987636e1c1a9a4e95c840:[email protected]/admin/api/2021-10/price_rules/1001616998463/discount_codes/12231414743103.json
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Code language: JavaScript (javascript)

• Paste the URL above.

Then Click SEND

Response:

An empty array

Step 2: Verify the Result

In Admin, choose Discounts 

As you can see the discount code has been deleted. 

I have shown you all steps to create, update and delete a discount code with Shopify API using Postman. If you have any questions please leave a comment below or refer to our Devdocs. 

If you still do not understand the tutorial’s content, you can watch the video below for a more overview.

Hopefully, you can do it!