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PrestaShop Update product using API

zohaibk

Perfect — updating a product via PrestaShop Webservice API is a bit stricter than creating one, so I’ll walk you through the safe + correct way 👇
(If you skip steps, PrestaShop throws a 500 😅)

Core Rule (Don’t Skip This)

👉 UPDATE = GET → MODIFY → PUT
You cannot send partial XML like other APIs.

1️⃣ Know the Product ID

Example:

Product ID = 123

Update endpoint:

/api/products/123

2️⃣ Get Existing Product XML

This is mandatory.

CURL

curl -X GET "https://yourstore.com/api/products/123" \
-u API_KEY:

This returns full product XML.

3️⃣ Modify Only What You Need

Common updates:

⚠️ Do NOT remove nodes
⚠️ Keep <id>123</id> inside <product>

4️⃣ Sample XML – Update Product

<?xml version="1.0" encoding="UTF-8"?>
<prestashop>
  <product>
    <id>123</id>

    <price>1199</price>
    <active>1</active>

    <name>
      <language id="1">Updated Product Name</language>
    </name>

    <link_rewrite>
      <language id="1">updated-product-name</language>
    </link_rewrite>
  </product>
</prestashop>

5️⃣ PUT Request (Update Product)

curl -X PUT "https://yourstore.com/api/products/123" \
-u API_KEY: \
-H "Content-Type: application/xml" \
-d @product-update.xml

✅ Success → 200 OK

6️⃣ PHP Example – Update Product

$apiKey = 'YOUR_API_KEY';
$productId = 123;
$url = "https://yourstore.com/api/products/$productId";

// Step 1: Get product
$ch = curl_init($url);
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_USERPWD => $apiKey . ':'
]);
$xml = curl_exec($ch);
curl_close($ch);

// Step 2: Modify XML
$xmlObj = simplexml_load_string($xml);
$xmlObj->product->price = 1199;
$xmlObj->product->name->language[0] = 'Updated Product Name';

// Step 3: PUT update
$ch = curl_init($url);
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'PUT',
    CURLOPT_USERPWD => $apiKey . ':',
    CURLOPT_HTTPHEADER => ['Content-Type: application/xml'],
    CURLOPT_POSTFIELDS => $xmlObj->asXML()
]);

$response = curl_exec($ch);
curl_close($ch);

echo $response;

7️⃣ Updating Stock (Separate API ❗)

Price ≠ quantity.

Get stock ID

/api/stock_availables?filter[id_product]=123

Update stock quantity

<prestashop>
  <stock_available>
    <id>STOCK_ID</id>
    <quantity>50</quantity>
  </stock_available>
</prestashop>

PUT to:

/api/stock_availables/STOCK_ID

8️⃣ Common Errors & Fixes

Error Cause Fix
500 Missing XML fields Use GET → PUT flow
401 Auth issue Check API key
403 Permission Enable PUT for products
406 Wrong lang ID Use correct language ID
Update succeeds but not visible Cache Clear PS cache

9️⃣ Best Practices (Battle-tested)

✔ Always GET before PUT
✔ Keep product <id>
✔ Use XML for updates
✔ Don’t touch manufacturer_name
✔ Stock updated separately
✔ Clear cache after bulk updates

 

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