Can't Perform POST using REST API and Basic Authentication

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New Member
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I cannot create a record by performing a POST using Shopify's REST API and Basic Authentication. For example, I tried performing a POST to the following URL:
https://{API Key}:{Password}@{MyStore}.myshopify.com/admin/products/{product-id}/metafields.json

Along with the body:
{
"metafield": {
"namespace": "global",
"key": "Test_Metafield",
"value": "Value for test metafield",
"value_type": "string",
"description": "This is the description"
}
}

When I try sending it no metafield gets created for the product. Instead, I get a status 200 with HTML as the response as shown below:

<html>
<body>
<noscript>
<a
href="https://accounts.shopify.com/oauth/authorize?client_id=xxxxxxxxxxxxxxxxx&amp;destination_uuid=xxxxxx...>
</noscript>
<script type="text/javascript" defer>
window.location = "https:\/\/accounts.shopify.com\/oauth\/authorize?client_id=xxxxxxxxxxxxxxxxxxx\u0026destination_uuid=4xxxxxxxxxxxxxxxxxxxx\u0026nonce=xxxxxxxxxxxxxxxxxxx\u0026prompt=merge\u0026redirect_uri=https%3A%2F%2Fxxxxxxx.myshopify.com%2Fadmin%2Fauth%2Fidentity%2Fcallback\u0026response_type=code\u0026scope=email%20https%3A%2F%2Fapi.shopify.com%2Fauth%2Fdestinations.readonly%20openid%20profile%20https%3A%2F%2Fapi.shopify.com%2Fauth%2Fpartners.collaborator-relationships.readonly%20https%3A%2F%2Fapi.shopify.com%2Fauth%2Fbanking.manage\u0026state=xxxxxxxxxxxxxxxxx\u0026ui_locales=en\u0026ux=shop";
</script>
</body>
</html>

I can perform GETs and PUTs in which I can retrieve metafield records as well as update existing metafields. But anytime I perform a POST (or create a new record), I get the same response as above.

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Shopify Expert
9978 110 1787

This is an accepted solution.

How are you making the request? Is this via the browser? Postman? Something else? I am guessing you're sending cookies in the request so that's being blocked for good security reasons. Remove those cookies and you may find the result differs.

★ Winning Partner of the Build a Business competition. ★ http://freakdesign.com.au
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New Member
3 0 0

Thanks Jason! I was using Postman. Once I cleared all the cookies I was able to perform the post.

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