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Upload file for React Native + Rest API

Using fetch:

const uploadResponse = await uploadPhotoAsync(uris[0], newFileName.concat(ext))
const uploadResult = await uploadResponse.text()

let formData = new FormData()
formData.append('file', { uri: localUri, name: filename, type })

const url = `${UPLOAD_PHOTO_TOANDMAP_URL}${newFileName}`
return await fetch(url, {
method: 'POST',
body: formData,
header: {
'content-type': 'multipart/form-data'
}
})
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