#List of common verbs update
#List of common verbs code

If, for instance, calling PUT on a resource increments a counter within the resource, the call is no longer idempotent.

#List of common verbs update

In other words, if you create or update a resource using PUT and then make that same call again, the resource is still there and still has the same state as it did with the first call. PUT is not a safe operation, in that it modifies (or creates) state on the server, but it is idempotent. It is not necessary to return a link via a Location header in the creation case since the client already set the resource ID. A body in the response is optional-providing one consumes more bandwidth. If using PUT for create, return HTTP status 201 on successful creation. On successful update, return 200 (or 204 if not returning any content in the body) from a PUT. Consequently, this method of creation should be used sparingly, if at all.Р”Р„lternatively, use POST to create new resources and provide the client-defined ID in the body representation-presumably to a URI that doesn't include the ID of the resource (see POST below). Many feel this is convoluted and confusing. Again, the request body contains a resource representation. In other words, if the PUT is to a URI that contains the value of a non-existent resource ID. However, PUT can also be used to create a resource in the case where the resource ID is chosen by the client instead of by the server. PUT is most-often utilized for **update** capabilities, PUT-ing to a known resource URI with the request body containing the newly-updated representation of the original resource. Additionally, GET (and HEAD) is idempotent, which means that making multiple identical requests ends up having the same result as a single request.Р”Вo not expose unsafe operations via GET-it should never modify any resources on the server. That is, they can be called without risk of data modification or corruption-calling it once has the same effect as calling it 10 times, or none at all. Therefore, when used this way, they are considered safe. In an error case, it most often returns a 404 (NOT FOUND) or 400 (BAD REQUEST).Р”Р„ccording to the design of the HTTP specification, GET (along with HEAD) requests are used only to read data and not change it.

#List of common verbs code

In the РІР‚СљhappyРІР‚Сњ (or non-error) path, GET returns a representation in XML or JSON and an HTTP response code of 200 (OK). The HTTP GET method is used to **read** (or retrieve) a representation of a resource. 404 (Not Found), if ID not found or invalid. 404 (Not Found), if ID not found or invalid.Р”В¤05 (Method Not Allowed), unless you want to modify the collection itself.Р”В¤05 (Method Not Allowed), unless you want to delete the whole collection-not often desirable.Р”Сћ00 (OK). 404 (Not Found), if ID not found or invalid.Р”В¤05 (Method Not Allowed), unless you want to update/replace every resource in the entire collection.Р”Сћ00 (OK) or 204 (No Content). Use pagination, sorting and filtering to navigate big lists.Р”Сћ00 (OK), single customer. Of those less-frequent methods, OPTIONS and HEAD are used more often than others.Р”В«elow is a table summarizing recommended return values of the primary HTTP methods in combination with the resource URIs: HTTP VerbР”Сћ01 (Created), 'Location' header with link to /customers/ containing new ID.Р”В¤04 (Not Found), 409 (Conflict) if resource already exists.Р”Сћ00 (OK), list of customers. There are a number of other verbs, too, but are utilized less frequently. These correspond to create, read, update, and delete (or CRUD) operations, respectively. The primary or most-commonly-used HTTP verbs (or methods, as they are properly called) are POST, GET, PUT, PATCH, and DELETE. The HTTP verbs comprise a major portion of our РІР‚Сљuniform interfaceРІР‚Сњ constraint and provide us the action counterpart to the noun-based resource.