能否强制SharePoint REST API返回英文异常信息？

• Short Answer: Absolutely! You can override the site's default language for error messages by adding the Accept-Language: en-US HTTP header to your REST API requests. SharePoint respects this standard header and will return error text in your specified language every time.

How It Works #

SharePoint’s REST API adheres to HTTP standards, including the Accept-Language header. This header lets you explicitly tell the server which language you want for response content—including error messages—bypassing the site’s native language settings. This is perfect for your scenario where you need consistent English error text across multilingual sites.

Example Implementations #

1. JavaScript Fetch API #

const siteApiUrl = "https://your-sharepoint-site/_api/web/lists/getbytitle('TargetList')";

fetch(siteApiUrl, {
  method: "GET",
  headers: {
    "Accept": "application/json;odata=nometadata",
    "Accept-Language": "en-US", // Critical line for English errors
    "Authorization": "Bearer " + yourAccessToken
  }
})
.then(response => {
  if (!response.ok) {
    return response.json().then(err => { throw err; });
  }
  return response.json();
})
.catch(error => {
  console.log(error.message.value); // Will always be in English
});

2. PowerShell #

$siteUrl = "https://your-sharepoint-site/_api/web/lists/getbytitle('TargetList')"
$authHeaders = @{
    "Accept" = "application/json;odata=nometadata"
    "Accept-Language" = "en-US"
    "Authorization" = "Bearer $yourAccessToken"
}

try {
    $response = Invoke-RestMethod -Uri $siteUrl -Headers $authHeaders -Method Get
}
catch {
    $errorDetails = $_.ErrorDetails.Message | ConvertFrom-Json
    Write-Host $errorDetails.error.message.value # English error text guaranteed
}

Key Notes #

• This header works for nearly all SharePoint REST operations, not just list requests.
• If you ever need a different language, replace en-US with valid codes like de-DE or es-ES.
• Don’t forget to include valid authentication headers (like the Bearer token) alongside Accept-Language—the header won’t work without proper authorization.

内容的提问来源于stack exchange，提问作者Yaniv Amar