SharePoint Document Issues

Fix SharePoint REST API Not Returning Images or Attachments

Partner Editor Sep 27, 2026 869 views

Question details

The SharePoint REST API response is omitting attachment files and image field data when retrieving list items.

How to Fix SharePoint REST API Not Returning Images or Attachments

Product: SharePoint
Device & OS: not provided
Scenario: A developer or user is querying a SharePoint list via REST API to retrieve list items along with their associated images and file attachments.
Observed behavior: The API response successfully includes standard list columns, but the attachment metadata and modern image fields are completely missing or inaccessible.

Before you start

Ensure you have the correct SharePoint site URL and verify that your account or application has sufficient 'Read' permissions for both the target list and its attachments.

Solution 1Recommended

Explicitly Expand AttachmentFiles in the API Request

By default, the SharePoint REST API does not return attachment data to optimize payload size. You must explicitly request this data using the $expand parameter.

To retrieve attachment metadata alongside your list items, you need to modify your REST API query. The OData $expand command forces SharePoint to include the related attachment files array in the JSON response.

Locate your REST API endpoint

Identify the exact REST API URL you are using to fetch the list items, which usually looks like `/_api/web/lists/getbytitle('ListName')/items`.

Append the $expand parameter

Add `?$expand=AttachmentFiles` to the end of your endpoint URL. If you already have query parameters, use an ampersand, like `?$select=Title&$expand=AttachmentFiles`.

Execute and verify the response

Run your API call again. The JSON response should now include an `AttachmentFiles` array containing the metadata and ServerRelativeUrl for each attachment.

Explicitly Expand AttachmentFiles in the API Request

Combine with $select: For better performance, use `$select=AttachmentFiles` alongside `$expand=AttachmentFiles` to only retrieve the specific attachment properties you need.

Solution 2

Parse Structured JSON for Modern Image Fields

Modern SharePoint Image fields do not return a direct image URL as a simple string; instead, they return a structured JSON object that requires parsing.

Solution 3

Verify Permissions and Internal Field Names

Differences in permissions or a mismatch in internal field names between test and production environments can cause fields to be silently dropped from the API response.

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Frequently Asked Questions

Why does the SharePoint REST API return an empty array or omit attachments entirely?

This happens because the SharePoint REST API intentionally omits attachment metadata to improve query performance. You must explicitly request attachments by appending the `?$expand=AttachmentFiles` query parameter to your REST endpoint URL.

How do I get the direct image URL from a SharePoint modern image column via API?

Modern image columns return an escaped JSON string instead of a plain URL link. To retrieve the URL, you must access the field value in the API response and parse the JSON string in your code to extract the `serverRelativeUrl` property.

Can permission issues cause certain fields to disappear from the REST API response?

Yes. If the account or application making the API request lacks sufficient permissions for specific list items, attachments, or the referenced files, SharePoint may silently omit those specific fields from the JSON payload rather than returning a clear error.

How can I check the true internal field name for my SharePoint list column?

Navigate to your SharePoint List Settings in the web browser and click on the column name you want to query. Inspect the page URL in your browser's address bar; the exact text immediately following `Field=` is the internal field name you must use in your REST API calls.

Document & File Issues