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feat: add invalidate endpoint #2493

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merged 3 commits into from
Apr 15, 2020
Merged

feat: add invalidate endpoint #2493

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da0f358
feat: add invalidate endpoint
EslamHiko Apr 1, 2020
d70af03
Merge branch 'master' into invalidate-endpoint
EslamHiko Apr 2, 2020
37a2705
Merge branch 'master' into invalidate-endpoint
hiroppy Apr 15, 2020
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2 changes: 1 addition & 1 deletion lib/Server.js
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Original file line number Diff line number Diff line change
Expand Up @@ -118,7 +118,7 @@ class Server {
this.setupDevMiddleware();

// set express routes
routes(this.app, this.middleware, this.options);
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Why did you change this?

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@hiroppy To pass the server, so I can call server.invalidate()

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@hiroppy hiroppy Apr 3, 2020 •
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I'm -1 on this change because if you pass this, we can't understand what variables are used by this function clearly.

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@hiroppy I tried (this.app, this.middleware, this.options, this.invalidate) and called invalidate() only but this resulted in 500 "Internal Server Error" so what about changing this into server for better reading ex:

const server = this;
routes(server);

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one thing that worked was moving

invalidate(callback) {
    if (this.middleware) {
      this.middleware.invalidate(callback);
    }
  }

to routes.js and make it only accessable via the api call, but that would require adding an option invalidateCallBack so we can pass it ex:

    this.invalidateCallBack = this.options.invalidateCallBack;
    // set express routes
    routes(this.app, this.middleware, this.options, this.invalidateCallBack);

and in routes.js

function routes(app, middleware, options, invalidateCallBack) {
  app.get('/invalidate', (_req, res) => {
    if(middleware)
      middleware.invalidate(invalidateCallBack)
    res.end();
  });
}

routes(this);

// Keep track of websocket proxies for external websocket upgrade.
this.websocketProxies = [];
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11 changes: 10 additions & 1 deletion lib/utils/routes.js
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Expand Up @@ -5,7 +5,11 @@ const { join } = require('path');

const clientBasePath = join(__dirname, '..', '..', 'client');

function routes(app, middleware, options) {
function routes(server) {
const app = server.app;
const middleware = server.middleware;
const options = server.options;

app.get('/__webpack_dev_server__/live.bundle.js', (req, res) => {
res.setHeader('Content-Type', 'application/javascript');

Expand All @@ -30,6 +34,11 @@ function routes(app, middleware, options) {
createReadStream(join(clientBasePath, 'live.html')).pipe(res);
});

app.get('/invalidate', (_req, res) => {
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@sokra sokra May 5, 2020 •
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This should better be prefixed with webpack-dev-server maybe /webpack-dev-server/invalidate. Otherwise /invalidate is unusable for the user and apps using /invalidate in their router break.

server.invalidate();
res.end();
});

app.get('/webpack-dev-server', (req, res) => {
res.setHeader('Content-Type', 'text/html');

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4 changes: 4 additions & 0 deletions test/server/utils/routes.test.js
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Expand Up @@ -64,6 +64,10 @@ describe('routes util', () => {
});
});

it('GET request to invalidate endpoint', (done) => {
req.get('/invalidate').expect(200, done);
});
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Will be great to test what we really do invalidate - get stats before do request and do get stats again

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I can't detect any changes in server.middleware

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and server.middleware.context.stats is always undefined

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Strange, should be no

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@EslamHiko EslamHiko Apr 1, 2020 •
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I've thought about an Idea maybe we can create an option invalidateCallback and we create a function that creates a file then delete after confirming that the file exists.
@evilebottnawi what do you think ?

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Bad idea, maybe we need fix something in tests, need debug


it('should handles GET request to live html', (done) => {
req.get('/webpack-dev-server/').then(({ res }) => {
expect(res.headers['content-type']).toEqual('text/html');
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