HTTP

HTTP 202 Accepted vs 407 Proxy Authentication Required

HTTP 202 (Accepted) is a 2xx Success response, while 407 (Proxy Authentication Required) is a 4xx Client Error response. 202 indicates that the request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon. In contrast, 407 means that the client must first authenticate itself with the proxy.

Description

The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon.

When You See It

For async operations like batch jobs, email sending, or background tasks that take time to complete.

How to Fix

Poll the provided status URL or wait for a callback/webhook.

Description

The client must first authenticate itself with the proxy.

When You See It

When accessing the internet through a corporate proxy that requires authentication.

How to Fix

Configure proxy credentials in your HTTP client or browser settings.

Key Differences

1.

202 is a 2xx Success response, while 407 is a 4xx Client Error response.

2.

HTTP 202: The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon.

3.

HTTP 407: The client must first authenticate itself with the proxy.

4.

You encounter 202 when for async operations like batch jobs, email sending, or background tasks that take time to complete.

5.

You encounter 407 when when accessing the internet through a corporate proxy that requires authentication.

When to Use Which

For 202 (Accepted): Poll the provided status URL or wait for a callback/webhook. For 407 (Proxy Authentication Required): Configure proxy credentials in your HTTP client or browser settings.

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