Ich versuche fetch API zu verwenden, um Dateien auf einen node.js Server hochzuladen (Ich benutze Github Pollyfill, wenn es etwas damit zu tun hat: https://github.com/github/fetch).Fetch API und Multer Fehler beim Hochladen von Datei
const data = new FormData();
data.append('file', file);
return fetch(this.concatToUrl(url), {
method: 'post',
headers: Object.assign({}, this.getHeaders(), {'Content-Type': 'multipart/form-data'}),
body: data,
});
Auf der Serverseite Ich habe diese Erklärung der Route:
wird die Anfrage so gemacht
app.post('/media', upload.single('file'), mediaRoutes.postMedia);
Und versucht, die Datei wie folgt zu erhalten:
exports.postMedia = function(req, res) {
console.log('req.file', req.file, req.files, req.body);
return res.sendStatus(200);
}
Aber req.file
wird nicht gefüllt.
Auch ich erhalte diesen Fehler von express Seite:
Error: Multipart: Boundary not found
[2] at new Multipart (/Users/jmanzano/Development/web/test/node_modules/busboy/lib/types/multipart.js:58:11)
[2] at Multipart (/Users/jmanzano/Development/web/test/node_modules/busboy/lib/types/multipart.js:26:12)
[2] at Busboy.parseHeaders (/Users/jmanzano/Development/web/test/node_modules/busboy/lib/main.js:64:22)
[2] at new Busboy (/Users/jmanzano/Development/web/test/node_modules/busboy/lib/main.js:21:10)
[2] at multerMiddleware (/Users/jmanzano/Development/web/test/node_modules/multer/lib/make-middleware.js:32:16)
[2] at Layer.handle [as handle_request] (/Users/jmanzano/Development/web/test/node_modules/express/lib/router/layer.js:95:5)
[2] at next (/Users/jmanzano/Development/web/test/node_modules/express/lib/router/route.js:131:13)
[2] at Route.dispatch (/Users/jmanzano/Development/web/test/node_modules/express/lib/router/route.js:112:3)
[2] at Layer.handle [as handle_request] (/Users/jmanzano/Development/web/test/node_modules/express/lib/router/layer.js:95:5)
[2] at /Users/jmanzano/Development/web/test/node_modules/express/lib/router/index.js:277:22
[2] at Function.process_params (/Users/jmanzano/Development/web/test/node_modules/express/lib/router/index.js:330:12)
[2] at next (/Users/jmanzano/Development/web/test/node_modules/express/lib/router/index.js:271:10)
[2] at cors (/Users/jmanzano/Development/web/test/node_modules/cors/lib/index.js:178:7)
[2] at /Users/jmanzano/Development/web/test/node_modules/cors/lib/index.js:228:17
[2] at originCallback (/Users/jmanzano/Development/web/test/node_modules/cors/lib/index.js:217:15)
[2] at /Users/jmanzano/Development/web/test/node_modules/cors/lib/index.js:222:13
[2] at optionsCallback (/Users/jmanzano/Development/web/test/node_modules/cors/lib/index.js:203:9)
[2] at /Users/jmanzano/Development/web/test/node_modules/cors/lib/index.js:208:7
[2] at Layer.handle [as handle_request] (/Users/jmanzano/Development/web/test/node_modules/express/lib/router/layer.js:95:5)
[2] at trim_prefix (/Users/jmanzano/Development/web/test/node_modules/express/lib/router/index.js:312:13)
[2] at /Users/jmanzano/Development/web/test/node_modules/express/lib/router/index.js:280:7
[2] at Function.process_params (/Users/jmanzano/Development/web/test/node_modules/express/lib/router/index.js:330:12)
Und dies ist die Konfiguration über Middle:
app.use(bodyParser.urlencoded({extended: true}));
app.use(bodyParser.json());
app.use(expressValidator());
app.use(logger('dev'));
app.use(cookieParser());
app.use(methodOverride());
app.use(passport.initialize());
app.use(passport.session());
app.set('JWTSuperSecret', jwtConfig.secret);
if (process.env.NODE_ENV !== 'production') {
app.use(cors());
}
Auch dies korrekt mit POSTMAN arbeitet. Also, ich denke, ich mache etwas falsch mit der Anfrage.
Danke!
Das Problem mit diesem Ansatz ist, dass ich mehr benutzerdefinierte Header festlegen muss (z. B. JWT-Authentifizierung zulassen). Wie kann ich das erreichen? –
Nur Prowess-Eigenschaft 'content-type' aus der Kopfzeilenliste. Siehe Aktualisierung. –