Make an HTTP request.
Syntax
cy.request(url) cy.request(url, body) cy.request(method, url) cy.request(method, url, body) cy.request(options)
Usage
Correct Usage
cy.request('http://dev.local/seed')
Arguments
url (String)
The URL to make the request to.
If you provide a non fully qualified domain name (FQDN), Cypress will make its best guess as to which host you want cy.request()
to use in the url.
-
If you make a
cy.request()
after visiting a page, Cypress assumes the url used for thecy.visit()
is the host.cy.visit('http://localhost:8080/app') cy.request('users/1.json') // url is http://localhost:8080/users/1.json
-
If you make a
cy.request()
prior to visiting a page, Cypress uses the host configured as thebaseUrl
property inside ofcypress.json
.// cypress.json { "baseUrl": "http://localhost:1234" }
cy.request('seed/admin') // url is http://localhost:1234/seed/admin
-
If Cypress cannot determine the host it will throw an error.
body (String, Object)
A request body
to be sent in the request. Cypress sets the Accepts
request header and serializes the response body by its Content-Type
.
method (String)
Make a request using a specific method. If no method is defined, Cypress uses the GET
method by default.
Supported methods include:
GET
POST
PUT
DELETE
PATCH
HEAD
OPTIONS
TRACE
COPY
LOCK
MKCOL
MOVE
PURGE
PROPFIND
PROPPATCH
UNLOCK
REPORT
MKACTIVITY
CHECKOUT
MERGE
M-SEARCH
NOTIFY
SUBSCRIBE
UNSUBSCRIBE
SEARCH
CONNECT
options (Object)
Pass in an options object to change the default behavior of cy.request()
.
Option | Default | Description |
---|---|---|
log | true | Displays the command in the Command log |
url | null | The URL to make the request to |
method | GET | The HTTP method to use in the request |
auth | null | Adds Authorization headers. Accepts these options. |
body | null | Body to send along with the request |
failOnStatusCode | true | Whether to fail on response codes other than 2xx and 3xx
|
followRedirect | true | Whether to automatically follow redirects |
form | false | Whether to convert the body values to url encoded content and set the x-www-form-urlencoded header |
gzip | true | Whether to accept the gzip encoding |
headers | null | Additional headers to send; Accepts object literal |
qs | null | Query parameters to append to the url of the request |
retryOnStatusCodeFailure | false | Whether Cypress should automatically retry status code errors under the hood. Cypress will retry a request up to 4 times if this is set to true. |
retryOnNetworkFailure | true | Whether Cypress should automatically retry transient network errors under the hood. Cypress will retry a request up to 4 times if this is set to true. |
timeout | responseTimeout | Time to wait for cy.request() to resolve before timing out
|
You can also set options for cy.request()
‘s baseUrl
and responseTimeout
globally in configuration.
Yields
cy.request()
yields the response
as an object literal containing properties such as:
status
body
headers
duration
Examples
URL
Make a GET
request
cy.request()
is great for talking to an external endpoint before your tests to seed a database.
beforeEach(function () { cy.request('http://localhost:8080/db/seed') })
Issue a simple HTTP request
Sometimes it’s quicker to test the contents of a page rather than cy.visit()
and wait for the entire page and all of its resources to load.
cy.request('/admin').its('body').should('include', '<h1>Admin</h1>')
Method and URL
Send a DELETE
request
cy.request('DELETE', 'http://localhost:8888/users/827')
Alias the request using .as()
cy.request('https://jsonplaceholder.cypress.io/comments').as('comments') cy.get('@comments').should((response) => { expect(response.body).to.have.length(500) expect(response).to.have.property('headers') expect(response).to.have.property('duration') })
Method, URL, and Body
Send a POST
request with a JSON body
cy .request('POST', 'http://localhost:8888/users/admin', { name: 'Jane' }) .then((response) => { // response.body is automatically serialized into JSON expect(response.body).to.have.property('name', 'Jane') // true })
Options
Request a page while disabling auto redirect
To test the redirection behavior of a login without a session, cy.request
can be used to check the status
and redirectedToUrl
property.
The redirectedToUrl
property is a special Cypress property that normalizes the URL the browser would normally follow during a redirect.
cy.request({ url: '/dashboard', followRedirect: false // turn off following redirects }) .then((resp) => { // redirect status code is 302 expect(resp.status).to.eq(302) expect(resp.redirectedToUrl).to.eq('http://localhost:8082/unauthorized') })
HTML form submissions using form option
Oftentimes, once you have a proper e2e test around logging in, there’s no reason to continue to cy.visit()
the login and wait for the entire page to load all associated resources before running any other commands. Doing so can slow down our entire test suite.
Using cy.request()
, we can bypass all of this because it automatically gets and sets cookies just as if the requests had come from the browser.
cy.request({ method: 'POST', url: '/login_with_form', // baseUrl is prepended to url form: true, // indicates the body should be form urlencoded and sets Content-Type: application/x-www-form-urlencoded headers body: { username: 'jane.lane', password: 'password123' } }) // just to prove we have a session cy.getCookie('cypress-session-cookie').should('exist')
Using cy.request()
for HTML Forms
Check out our example recipe using
cy.request()
for HTML web forms
Request Polling
Call cy.request()
over and over again
This is useful when you’re polling a server for a response that may take awhile to complete.
All we’re really doing here is creating a recursive function. Nothing more complicated than that.
// just a regular ol' function folks function req () { cy .request(...) .then((resp) => { // if we got what we wanted if (resp.status === 200 && resp.body.ok === true) // break out of the recursive loop return // else recurse req() }) } cy // do the thing causing the side effect .get('button').click() // now start the requests .then(req)
Notes
Debugging
Request is not displayed in the Network Tab of Developer Tools
Cypress does not actually make an XHR request from the browser. We are actually making the HTTP request from the Cypress Test Runner (in Node). So, you won’t see the request inside of your Developer Tools.
CORS
CORS is bypassed
Normally when the browser detects a cross-origin HTTP request, it will send an OPTIONS
preflight check to ensure the server allows cross-origin requests, but cy.request()
bypasses CORS entirely.
// we can make requests to any external server, no problem. cy.request('https://www.google.com/webhp?#q=cypress.io+cors') .its('body').should('include', 'Testing, the way it should be') // true
Cookies
Cookies are automatically sent and received
Before sending the HTTP request, we automatically attach cookies that would have otherwise been attached had the request come from the browser. Additionally, if a response has a Set-Cookie
header, these are automatically set back on the browser cookies.
In other words, cy.request()
transparently performs all of the underlying functions as if it came from the browser.
cy.request()
cannot be used to debug cy.server()
and cy.route()
cy.request()
sends requests to actual endpoints, bypassing those defined using cy.route()
The intention of cy.request()
is to be used for checking endpoints on an actual, running server without having to start the front end application.
Rules
Requirements
cy.request()
requires being chained off ofcy
.cy.request()
requires that the server send a response.cy.request()
requires that the response status code be2xx
or3xx
whenfailOnStatusCode
istrue
.
Assertions
cy.request()
will only run assertions you've chained once, and will not retry.
Timeouts
cy.request()
can time out waiting for the server to respond.
Command Log
Request comments endpoint and test response
cy.request('https://jsonplaceholder.typicode.com/comments').then((response) => { expect(response.status).to.eq(200) expect(response.body).to.have.length(500) expect(response).to.have.property('headers') expect(response).to.have.property('duration') })
The commands above will display in the Command Log as:
When clicking on request
within the command log, the console outputs the following:
History
Version | Changes |
---|---|
3.3.0 | Added support for options retryOnStatusCodeFailure and retryOnNetworkFailure . |
3.2.0 | Added support for any valid HTTP method argument including TRACE , COPY , LOCK , MKCOL , MOVE , PURGE , PROPFIND , PROPPATCH , UNLOCK , REPORT , MKACTIVITY , CHECKOUT , MERGE , M-SEARCH , NOTIFY , SUBSCRIBE , UNSUBSCRIBE , SEARCH , and CONNECT . |