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Added fix per boundary issue #4

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Added fix per boundary issue #4

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22 changes: 19 additions & 3 deletions backend/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -32,9 +32,25 @@ const upload = multer({
const app = require('express')();
const http = require('http').Server(app);

app.post('/upload', upload.single('photo'), (req, res, next) => {
res.json(req.file)
})
// HACK - react-native generates FormData with an invalid boundary that might contain '/'
// we need to wrap the boundary value with quotes to fix it
// TODO - remove this when react-native releases the fix
const re = /^multipart\/form-data.\s?boundary=['"]?(.*?)['"]?$/i;
app.post(
'/upload',
// <https://github.com/facebook/react-native/issues/7564#issuecomment-266323928>
(req, res, next) => {
const contentType = req.headers['content-type'];
const match = re.exec(contentType);
if (match && match.length === 2)
req.headers['content-type'] = 'multipart/form-data; boundary="' + match[1] + '"';
next();
},
upload.single('photo'),
(req, res, next) => {
res.json(req.file)
}
)

let port = process.env.PORT || 3000;
http.listen(port, () => {
Expand Down