v0.20.4

Bug fixes

• Fixes an issue that produces a "Must provide source" error during GraphQL parsing of POST requests with body, but without the query property (#234, #328, #329).
• Fixes an issue that resulted into http module being patched in React Native environment, where it's not present (#203, #331).

Dependencies

• Updates to [email protected] (#331)

v0.20.3

Bug fixes

• Fixes an issue that resulted into the first matching request handler being treated as the only relevant request handler, even if it doesn't return any mocked response (#234, #258, #265).

v0.20.2

Features

• Adds graphql.link request handler that allows to mock GraphQL operations on per-endpoint basis (#315, #319).

import { setupWorker, graphql } from 'msw'

const github = graphql.link('https://api.github.com/graphql')
const stripe = graphql.link('https://api.stripe.com/graphql')

const worker = setupWorker(
  github.query('GetUser', resolver),
  stripe.mutation('Payment', resolver),
)

worker.start()

Bug fixes

• Fixes a TypeScript issue that resulted into the following error (#321, #322):

ERROR in node_modules/msw/lib/types/context/cookie.d.ts:1:8 - error TS1192:
Module '"/node_modules/@types/cookie/index"' has no default export.

v0.20.1

Bug fixes

• Fixes an issue with the node-fetch dependency that wasn't listed as a save dependency (#308)
• Fixes an issue that resulted into the React Native build module at /native not being published to NPM (#309)

v0.20.0

Breaking changes

• composeMocks function has been removed (#236, #239). Please use setupWorker instead.

-import { composeMocks, rest } from 'msw'
-composeMocks(rest.get(...))

+import { setupWorker, rest } from 'msw'
+setupWorker(rest.get(...))

Features

• Adds React Native support (#203, #269).

import { setupServer } from 'msw/native'
import { rest } from 'msw'

const server = setupServer(
  rest.get('/user', (req, res, ctx) => {
    return res(ctx.json({ firstName: 'John' })
  })
)

The setupServer API for React Native is the exact mirror of the same API for NodeJS. Read more in the documentation: https://mswjs.io/docs/api/setup-server

• Adds support for binary response types (#221, #224, Binary response type recipe).
• Adds an option to warn/error/execute arbitrary logic on unmatched request (#191, setupWorker docs, setupServer docs).

const server = setupServer(
  rest.get('/books', (req, res, ctx) => res())
)

server.listen({
  onUnhandledRequest: 'error'
})

fetch('/user') // ERROR! Unhandled request.

• Adds a req.cookies property to access a request’s cookies (#199, #261, Accessing request cookies recipe).
• Adds support for network error emulation (#253, res.networkError API):

rest.post('/login', (req, res, ctx) => {
  return res.networkError('Custom error message')
})

Bug fixes

• Fixes an issue that resulted into a "global is not defined" error being thrown in a browser (#255).
• Fixes an issue that resulted into the worker listeners being established multiple times after repetitive calls to worker.start() or Hot Reload (#244).
• Fixes an issue that failed response patching in NodeJS (#264, #266).
• Fixes an issue that resulted into the XMLHttpRequest.prototype.addEventListener events being ignored (#267).
• Fixes an issue that resulted into timeout in POST requests with a body in NodeJS (#277).
• Fixes an invalidly typed req.body in case of GraphQL request (#297, #302).
• Updates library's dependencies (#306).

v0.19.5

Features

• Adds a warning when using redundant query parameters in a request handler URL (#231, #233).
• Throws an exception when running setupWorker in a NodeJS environment (#219).
• Throws an exception when running setupServer in a browser environment (#214, #219).
• Adds a custom error message when calling worker.start() and the worker script doesn’t exist (#237, #242).
• Exports GraphQL type annotations for GraphQLMockedRequest, GraphQLMockedContext, GraphQLRequestPayload, GraphQLResponseResolver types (#213, #241).

Bug fixes

• Sets the default realistic response time of ctx.delay() to 5ms when run in Node environment (including jsdom) (#205).
• Fixes an issue that resulted into the response Promise to never resolve when using jest.useFakeTimers() in your tests (#243).
• Fixes a bug that resulted into a request handler URL with query parameters to produce a false negative match with the identical actual request URL. Query parameters and hashes in a request handler URL no longer affect the matching process.

v0.19.4

Internal

• Updates the repository's homepage and README.

v0.19.3

Bug fixes

• Fixes an issue that resulted into GraphQL requests issued using a GET method not being intercepted (#210, #212).

v0.19.2

Bug fixes

• Fixes an issue that resulted into TypeError [ERR_INVALID_URL]: Invalid URL: undefined//undefined exception when using third-party request issuing libraries in Node (#209, #211).

v0.19.1

Features

• Calling ctx.delay() without any arguments now simulates a random realistic server response time in a range between 100-400ms (#192, #198). Responses in Node are instantaneous.

Bug fixes

• Fixes an issue that resulted into Uncaught (in promise) SyntaxError: Unexpected end of input exception when processing a request. Internally, a request’s body is now always retrieved as text, parsing it as JSON is delegated to the client side (based on the Content-Type header) (#200, #201).