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Support streamed response from HttpNodeInstance

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SteveSandersonMS
2016-06-07 16:49:40 +01:00
parent 3440aa4344
commit 967edd2b2a
4 changed files with 52 additions and 20 deletions
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7
samples/misc/NodeServicesExamples/Controllers/ResizeImage.cs
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@@ -1,4 +1,5 @@
using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
@@ -36,10 +37,10 @@ namespace NodeServicesExamples.Controllers
return NotFound();
}
// Invoke Node and convert the base64 result back to bytes
// Invoke Node and pipe the result to the response
var mimeType = GetContentType(imagePath);
var resizedImage = await _nodeServices.Invoke<ResizeImageResult>("./Node/resizeImage", fileInfo.PhysicalPath, mimeType, maxWidth, maxHeight);
return File(Convert.FromBase64String(resizedImage.Base64), mimeType);
var imageStream = await _nodeServices.Invoke<Stream>("./Node/resizeImage", fileInfo.PhysicalPath, mimeType, maxWidth, maxHeight);
return File(imageStream, mimeType);
}
private string GetContentType(string path)

6
samples/misc/NodeServicesExamples/Node/resizeImage.js
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@@ -1,9 +1,7 @@
var sharp = require('sharp');
module.exports = function(cb, physicalPath, mimeType, maxWidth, maxHeight) {
module.exports = function(result, physicalPath, mimeType, maxWidth, maxHeight) {
sharp(physicalPath)
.resize(maxWidth > 0 ? maxWidth : null, maxHeight > 0 ? maxHeight : null)
.toBuffer(function (err, buffer) {
cb(err, { base64: buffer && buffer.toString('base64') });
});
.pipe(result.stream);
}