Response 200 meaning

The 200 OK status code indicates that the request has succeeded. The payload sent in a 200 OK response depends on the request method. For the methods defined by this specification, the intended meaning of the payload can be summarized as:GET a representation of the target resource;HEAD the same representation as GET, but without the representation data;POST a representation of the status of, or results obtained from, the action;PUT, DELETE a representation of the status of the action;OPTIONS a representation of the communications options;TRACE a representation of the request message as received by the end server.Aside from responses to CONNECT, a 200 OK response always has a payload,though an origin server MAY generate a payload body of zero length.If no payload is desired, an origin server ought to send 204 (No Content) instead. For CONNECT, no payload is allowed because the successful result is a tunnel, which begins immediately after the 200 OK response header section. A 200 OK response is cacheable by default; i.e., unless otherwise indicated by the method definition or explicit cache controls (see Section 4.2.2 of [RFC7234]). Source / Quote by: The 200 OK HTTP Status Code is specified by section 6.3.1 of RFC7231.

2xx status codes indicate success, meaning that the client's request was received, understood, and accepted by the server.200 OKA 200 response indicates that the request has succeeded.Common use casesA 200 response is commonly used in the following scenarios:GET requests: Returns requested resources such as webpages, images, or API data, along with relevant headers.HEAD requests: Retrieves only headers corresponding to the requested resource, such as metadata. For example, file size or last modified date.POST requests: Confirms successful processing of submitted data, such as form submissions, often with details about the result in the response body.A 200 response should ideally include a payload but is not required. Occasionally, an origin server may return a 200 response with zero content length. However, following RFC standards, a 204 response is recommended in such cases (except for the CONNECT method).Cloudflare-specific informationBy default, 200 responses are cacheable by proxy servers and browsers. If specific cache controls are not defined, static resources with a 200 response are cached for two hours at Cloudflare's edge.201 CreatedA 201 response indicates the successful creation of one or more new resources. The server typically includes the location of the newly created resource in either the Location header or the request URI.Common use casesCreating a new resource in response to a POST request. For example, creating a new user, article, or record.Cloudlare-specific informationCloudflare forwards 201 responses without modification.For further information, refer to RFC 7231 ↗ for more details about validator headers, like ETag and Last-Modified in a 201 response.A 203 response indicates that the request was successful, but the response did not come directly from the origin server. The response was instead delivered by a proxy or intermediate server.Common use casesServers use this response to tell a client that the resource was cached by a proxy server.Cloudlare-specific informationCloudflare does not cache 203 responses. For details about how Cloudflare handles 203 responses, refer to Cloudflare HTTP headers.204 No contentA 204 response indicates that the request was successfully processed, but there is no content to return in the response.Common use casesThis response is often used by servers to indicate that a document editor's save action to the origin server was completed successfully.Cloudflare-specific information204 responses never contain payloads, as specified by the HTTP standard, and Cloudflare does not cache these responses.205 Reset contentA 205 response tells the client to return to its previous state after a request.Common use casesThis response occurs after a user submits a form or other data and they want to tell the client to refresh the page or allow a new submission.Cloudflare-specific information205 responses must not contain any payloads and Cloudflare does not cache these responses.206 Partial contentA 206 response means that the request was partially successful, often used for serving large files in smaller chunks.Common use casesThis response is often used to decrease latency when clients are processing larger files that might require split or interrupted downloads. For instance, for streaming video or serving file ranges for progressive loading.A 206 response includes either:Partial payload that contains a Content-Range header specifying

The request has been fulfilled and has resulted in one or more new resources being created.The primary resource created by the request is identified by either a Location header field in the response or, if no Location field is received, by the effective request URI.The 201 response payload typically describes and links to the resource(s) created. See Section 7.2 of RFC7231 for a discussion of the meaning and purpose of validator header fields, such as ETag and Last-Modified, in a 201 response.Source: RFC7231 Section 6.3.2201 CODE REFERENCESRails HTTP Status Symbol :createdGo HTTP Status Constant http.StatusCreatedSymfony HTTP Status Constant Response::HTTP_CREATEDPython2 HTTP Status Constant httplib.CREATEDPython3+ HTTP Status Constant http.client.CREATEDPython3.5+ HTTP Status Constant http.HTTPStatus.CREATED.NET HttpStatusCode.CreatedRust http::StatusCode::CREATEDJava java.net.HttpURLConnection.HTTP_CREATEDApache HttpComponents Core org.apache.hc.core5.http.HttpStatus.SC_CREATEDAngular @angular/common/http/HttpStatusCode.Created201 status code exampleHere’s an example of a request and response for a 201 status code:RequestPOST /api/v1/users HTTP/1.1Host: example.comContent-Type: application/json{"name": "John Doe","email": "[email protected]","password": "s3cr3t"}ResponseHTTP/1.1 201 CreatedContent-Type: application/jsonLocation: no-cache{"id": 123,"name": "John Doe","email": "[email protected]","created_at": "2023-03-17T10:30:00Z"}In this example, the client is making a POST request to create a new user in the system. The server successfully creates the user and responds with a 201 Created status code, indicating that the request was successful and a new resource has been created. The response also includes a Location header that specifies the URL of the newly created resource, along with a JSON body containing the details of the user that was created, such as its ID, name, email, and creation date.What is the difference between a 201 status code and a 200 status code?The main difference between a 201 and 200 status code is the purpose of the response.A 201 Created status code indicates that a new resource has been successfully created as a result of the client’s request. The server should include a Location header in the response to specify the URL of the newly created resource. This is often used in APIs where clients need to create new resources, such as adding a new user or creating a new file.A 200 OK status code, on the other hand, indicates that the server has successfully fulfilled the client’s request, and the response body contains the requested data. This is often used for requests that retrieve or read data, such as fetching user details or retrieving a list of products.In summary, a 201 status code is used when a new resource is created, while a 200 status code is used when the request is successful and data is returned.Additional resourcesLearn about web developmentLearn about SEOWeb development services from WebFXSEO services from WebFXMDN Web DocsW3SchoolsReturn to List of HTTP Status Codes

The first computer program to simulate human conversation was ELIZA, developed by computer scientist Joseph Weizenbaum (USA, b. DEU) at the Massachusetts Institute of Technology between 1964 and 1966. Running on an IBM 7094 mainframe, ELIZA was designed to mimic the deliberately vague questioning style of a Rogerian psychoanalyst. The details of the program were published in January 1966.Users interacted with ELIZA by typing what they wanted to say into a teletype machine. Their message would then be processed by the program, which was running on a mainframe computer elsewhere on MIT's campus. The computer's response would then be automatically typed out on the machine.Eliza first scanned through the user's input looking for keywords, if it found one, it generated a response based on a set of rules associated with the keyword (i.e. "mother", "husband" or "depressed"), this response was modified by the context in which the keyword appeared. If there was no keyword or phrase, it would pick from a list of generic statements or questions. Weizenbaum added more complexity to this basic set-up by assigning different weights to certain keywords or combinations of keywords, meaning that the range of outputs was much wider than if it simply matched keywords to outputs. He also added the ability to read what he called "minimal context", which made assumptions about the meaning of the content based on the occurrence of particular phrases ("you" followed by "are", for example, was assumed to be a statement about ELIZA, whereas "I" followed by "am" was interpreted as a statement about the user). The whole program was extremely simple, around 200 lines of code in total, but it was surprisingly effective at engaging users. When he began to test it with students and colleagues, Weizenbaum was astonished by how quickly people started to treat it