Mock Service Worker (MSW) - 用于浏览器和node的无缝REST/GraphQL API模拟库

Features

• Adds support for declaring runtime request handlers (#128, #187):
  • .use() to prepend any request handlers. Any prepended request handlers take priority over existing ones, if their predicate match.
    • Usage example of .use() for setupServer
    • Usage example of .use() for setupWorker
  • .restoreHandlers() to mark any used one-time request handlers as unused, allowing them to affect network again.
    • Usage example of .restoreHandlers() for setupServer
    • Usage example of .restoreHandlers() for setupWorker
  • .resetHandlers() to remove any request handlers added on runtime. Optionally accepts a list of next request handlers that replace the initial handlers passed to setupServer/setupWorker call.
    • Usage example of .resetHandlers() for setupServer
    • Usage example of .resetHandlers() for setupWorker
• Adds support for one-time request handlers using res.once(). Such handles will respond with a given mocked response only once upon request match:

rest.get('/books', (req, res, ctx) => {
  return res.once(ctx.json([1, 2, 3]))
})

Bug fixes

• Fixes an issue that resulted into the following TypeScript error when installing msw (#185, #186 ):

TS7016: Could not find a declaration file for module 'cookie'

• Fixes an outdated GitHub repository link in the mockServiceWorker.js file.

Bug fixes

• Fixes an issue that resulted into responses to axios requests not being mocked properly (#180, #181).

Internal

• Lists node-request-interceptor as an external dependency of the msw/node bundle.

Features

• Custom request handlers have reworked lifecycle and accept new methods:
  • parse(), to retrieve additional information about the request before the predicate.
  • getPublicRequest(), to modify the original request with public information (i.e. adding req.params or req.variables).

Bug Fixes

• Fixes an issue that resulted into GraphQL mutations not being logged properly (#161, #176)

Features

• GraphQL requests are now being printed into browser’s console using a proper format (operation name / response status) (#161, #174)
• Each custom request handler can have its own log function that controls what and how gets printed into browser’s console for introspection:

// my-handler.js
export const myHandler = () => {
  return {
    log(req, res, handler) {
      console.log('%s %s', req.method, req.url.href)
    }
  }
}

The information available in the log function:

• req, intercepted request instance;
• res, resolved mocked response object;
• handler, exact request handler that captured this request.

Bug fixes

• Fixes an issue that resulted into a request body with the Content-Type: application/json to be unparsed in req.body reference of the request handler (#171, #172).

Bug fixes

• Fixes an issue that resulted into a relative request's URL being printed as absolute in the browser's console (#164, #167).
• Fixes an issue that resulted into a request JSON body not being parsed inside a request handler (#159, #168).