Http Error Codes 400 401
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referer DNT X-Forwarded-For Status codes 301 Moved Permanently 302 Found 303 See Other 403 Forbidden 404 Not Found 451 Unavailable For Legal Reasons v t e This is a list of Hypertext Transfer Protocol http status code 400 (HTTP) response status codes. It includes codes from IETF internet standards, other IETF
Http Code 403
RFCs, other specifications, and some additional commonly used codes. The first digit of the status code specifies one of five classes http status codes cheat sheet of response; an HTTP client must recognise these five classes at a minimum. The phrases used are the standard wordings, but any human-readable alternative can be provided. Unless otherwise stated, the status code
Http Response Example
is part of the HTTP/1.1 standard (RFC 7231).[1] The Internet Assigned Numbers Authority (IANA) maintains the official registry of HTTP status codes.[2] Microsoft IIS sometimes uses additional decimal sub-codes to provide more specific information,[3] but not all of those are here (note that these sub-codes only appear in the response payload and in documentation; not in the place of an actual HTTP status code). Contents 1 1xx Informational http code 302 2 2xx Success 3 3xx Redirection 4 4xx Client Error 5 5xx Server Error 6 Unofficial codes 6.1 Internet Information Services 6.2 nginx 6.3 Cloudflare 7 See also 8 Notes 9 References 10 External links 1xx Informational[edit] Request received, continuing process. This class of status code indicates a provisional response, consisting only of the Status-Line and optional headers, and is terminated by an empty line. Since HTTP/1.0 did not define any 1xx status codes, servers must not[note 1] send a 1xx response to an HTTP/1.0 client except under experimental conditions.[4] 100 Continue The server has received the request headers and the client should proceed to send the request body (in the case of a request for which a body needs to be sent; for example, a POST request). Sending a large request body to a server after a request has been rejected for inappropriate headers would be inefficient. To have a server check the request's headers, a client must send Expect: 100-continue as a header in its initial request and receive a 100 Continue status code in response before sending the body. The response 417 Expectation Failed indicates the request should not be continued.[2] 101 Switching Protocols The requester has asked t
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Http 404
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Http 422
for developers. Learn more → 10 How To Troubleshoot Common HTTP Error Codes Posted Oct 24, 2014 82.9k views FAQ Apache Nginx http 502 Introduction When accessing a web server or application, every HTTP request that is received by a server is responded to with an HTTP status code. HTTP status codes are three-digit codes, and are grouped into five different classes. https://en.wikipedia.org/wiki/List_of_HTTP_status_codes The class of a status code can be quickly identified by its first digit: 1xx: Informational 2xx: Success 3xx: Redirection 4xx: Client Error 5xx: Server Error This guide focuses on identifying and troubleshooting the most commonly encountered HTTP error codes, i.e. 4xx and 5xx status codes, from a system administrator's perspective. There are many situations that could cause a web server to respond to a request with a particular error code--we will cover common potential https://www.digitalocean.com/community/tutorials/how-to-troubleshoot-common-http-error-codes causes and solutions. Client and Server Error Overview Client errors, or HTTP status codes from 400 to 499, are the result of HTTP requests sent by a user client (i.e. a web browser or other HTTP client). Even though these types of errors are client-related, it is often useful to know which error code a user is encountering to determine if the potential issue can be fixed by server configuration. Server errors, or HTTP status codes from 500 to 599, are returned by a web server when it is aware that an error has occurred or is otherwise not able to process the request. General Troubleshooting Tips When using a web browser to test a web server, refresh the browser after making server changes Check server logs for more details about how the server is handling the requests. For example, web servers such as Apache or Nginx produce two files called access.log and error.log that can be scanned for relevant information Keep in mind that HTTP status code definitions are part of a standard that is implemented by the application that is serving requests. This means that the actual status code that is returned depends on how the server software handles a particular error--this guide should generally point you in the right direction Now that you have a high-level understanding of HTTP status
DocumentationBest PracticesAPI OverviewUpcoming changes to TweetsObject: UsersObject: TweetsObject: EntitiesObject: Entities in ObjectsObject: PlacesTwitter IDsConnecting to Twitter API using TLSUsing cursors to navigate collectionsError Codes & ResponsesTwitter LibrariesAPI StatusPlaybooksEventsCase StudiesManage My AppsTerms of UseError Codes & ResponsesHTTP Status https://dev.twitter.com/overview/api/response-codes CodesThe Twitter API attempts to return appropriate HTTP status codes for every request.CodeTextDescription200OKSuccess!304Not ModifiedThere was no new data to return.400Bad RequestThe request was invalid or cannot be otherwise served. An accompanying error message will explain further. In API v1.1, requests without authentication are considered invalid and will http status yield this response.401UnauthorizedAuthentication credentials were missing or incorrect.Also returned in other circumstances, for example all calls to API v1 endpoints now return 401 (use API v1.1 instead).403ForbiddenThe request is understood, but it has been refused or access is not allowed. An accompanying error message will explain why. This http status code code is used when requests are being denied due to update limits. Other reasons for this status being returned are listed alongside the response codes in the table below.404Not FoundThe URI requested is invalid or the resource requested, such as a user, does not exists. Also returned when the requested format is not supported by the requested method.406Not AcceptableReturned by the Search API when an invalid format is specified in the request.410GoneThis resource is gone. Used to indicate that an API endpoint has been turned off. For example: "The Twitter REST API v1 will soon stop functioning. Please migrate to API v1.1."420Enhance Your CalmReturned by the version 1 Search and Trends APIs when you are being rate limited.422Unprocessable EntityReturned when an image uploaded to POST account / update_profile_banner is unable to be processed.429Too Many RequestsReturned in API v1.1 when a reque