list of common AWS error status codes and their meanings

 AWS (Amazon Web Services) utilizes HTTP status codes to indicate the success or failure of API requests. Here is a list of common AWS error status codes and their meanings:

Client-Side Errors (4xx)

1. 400 Bad Request:
• Meaning: The request was invalid or cannot be served. The exact error should be explained in the error payload.
• Possible Causes: Invalid parameters, missing required parameters, or malformed request syntax.
2. 401 Unauthorized:
• Meaning: Authentication is required and has failed or has not been provided.
• Possible Causes: Missing or invalid AWS credentials, or lack of permissions.
3. 403 Forbidden:
• Meaning: The request was valid, but the server is refusing action.
• Possible Causes: Insufficient permissions to access the resource or action.
4. 404 Not Found:
• Meaning: The requested resource could not be found.
• Possible Causes: Incorrect resource identifier (e.g., wrong bucket name in S3).
5. 405 Method Not Allowed:
• Meaning: The method specified in the request is not allowed for the resource.
• Possible Causes: Using GET on a resource that requires POST.
6. 409 Conflict:
• Meaning: The request could not be completed due to a conflict with the current state of the resource.
• Possible Causes: Resource already exists or resource is being modified concurrently.
7. 412 Precondition Failed:
• Meaning: One or more conditions given in the request header fields evaluated to false when tested on the server.
• Possible Causes: Conditional request failed, such as an ETag check.
8. 429 Too Many Requests:
• Meaning: The user has sent too many requests in a given amount of time.
• Possible Causes: Exceeding the API rate limit.

Server-Side Errors (5xx)

1. 500 Internal Server Error:
• Meaning: The server encountered an unexpected condition that prevented it from fulfilling the request.
• Possible Causes: Internal server issues, temporary issues with the AWS service.
2. 502 Bad Gateway:
• Meaning: The server, while acting as a gateway or proxy, received an invalid response from the upstream server.
• Possible Causes: Temporary issues with the AWS service or network issues.
3. 503 Service Unavailable:
• Meaning: The server is currently unable to handle the request due to temporary overloading or maintenance of the server.
• Possible Causes: Service outage, service throttling, or maintenance.
4. 504 Gateway Timeout:
• Meaning: The server, while acting as a gateway or proxy, did not receive a timely response from the upstream server.
• Possible Causes: Timeout issues, latency in upstream servers.
5. 507 Insufficient Storage:
• Meaning: The server is unable to store the representation needed to complete the request.
• Possible Causes: Insufficient storage available.

Specific AWS Error Codes

AWS also provides specific error codes in the response body for more detailed information. Here are a few common ones:

1. AccessDenied:
• Meaning: Access to the resource is denied.
• Possible Causes: Lack of permissions, policies preventing access.
2. NoSuchBucket:
• Meaning: The specified bucket does not exist.
• Possible Causes: Incorrect bucket name or bucket has been deleted.
3. InvalidAccessKeyId:
• Meaning: The AWS access key ID provided does not exist in our records.
• Possible Causes: Incorrect access key, revoked access key.
4. SignatureDoesNotMatch:
• Meaning: The request signature we calculated does not match the signature you provided.
• Possible Causes: Incorrect secret key, incorrect signing process.
5. ThrottlingException:
• Meaning: Request rate is too high.
• Possible Causes: Exceeding the API rate limit.

Understanding these status codes and error messages can help diagnose and resolve issues when interacting with AWS services.

Here is a list of some of the more common Amazon Web Services (AWS) error status codes and their meanings:

    - 200 OK - The request was successful and the resource was created or updated.

    - 400 Bad Request - The request was malformed or incomplete, and the server could not understand it.

    - 401 Unauthorized - The request was made with invalid credentials or without proper authorization, and the server rejected it.

    - 403 Forbidden - The request was made to a resource that the user does not have permission to access.

    - 404 Not Found - The requested resource could not be found, either because it does not exist or because the user does not have permission to view it.

    - 409 Conflict - The request caused a conflict with another ongoing process, and the server could not complete it.

    - 410 Gone - The resource is no longer available, either because it has been deleted or because the user does not have permission to view it.

    - 415 Unsupported Media Type - The request was made with an improper media type, and the server could not process it.

    - 416 Invalid Range - The request was made with an invalid range or duration, and the server could not process it.

    - 500 Internal Server Error - The server encountered an internal error and could not complete the request.

    - 503 Service Unavailable - The service was unavailable at the moment the request was made, and the server could not complete it.

    - 504 Gateway Timeout - The gateway or server was busy and could not immediately process the request.

    - 505 Too Many Requests - The user made too many requests in a given period of time, and the server rejected them all.

    - 507 Insufficient Storage - The request could not be completed because the user's account did not have enough free storage space.

    - 508 Resource Exhausted - The request could not be completed because the resource was exhausted or unavailable.

    - 511 Too Many Users - The system was overloaded with too many users at the moment the request was made, and the server could not complete it.

    - 512 Too Many Connections - The system was overloaded with too many connections at the moment the request was made, and the server could not complete it.

    - 513 Slow Request - The request took too long to complete, and the server returned a  slow down message.

    - 514 Too Many Queries - The user made too many queries in a given period of time, and the server rejected them all.

    - 515 Bad Query - The user made a bad or malformed query, and the server could not understand it.

    - 516 Too Many Results - The search engine returned too many results for the given query, and the server stopped processing it.

    - 517 Insufficient Memory - The request could not be completed because the user's account did not have enough free memory space.

    - 518 Resource Not Found - The resource was not found or could not be accessed, and the server returned a  not found message.

    - 519 Slow Client - The client or script took too long to complete the request, and the server returned a  slow down message.