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Send PNG image via express API
0
I'm kinda confused on why I need to encode my binary data representing a PNG image to a base64 string so I can send it/display it via a REST API?
This is my code that works :
import png from 'fast-png';
api.get('/img', (req, res) => {
...
let pngImage = png.encode({
data: pixelData,
width: columns,
height: rows,
alpha: false,
components: samplesPerPixel
});
let base64 = Buffer.from(pngImage, 'binary').toString('base64');
result = new Buffer(base64, 'base64');
res.contentType('image/png');
res.send(result);
}
Code that doesn't work :
import png from 'fast-png';
api.get('/img', (req, res) => {
...
let pngImage = png.encode({
data: pixelData,
width: columns,
height: rows,
alpha: false,
components: samplesPerPixel
});
res.contentType('image/png');
res.send(pngImage.buffer, 'binary');
}
If someone could explain why it doesn't work in this case?
Thanks
node.js express png
asked Nov 20 '18 at 15:23
HRK44HRK44
432213
add a comment |
0
I'm kinda confused on why I need to encode my binary data representing a PNG image to a base64 string so I can send it/display it via a REST API?
This is my code that works :
import png from 'fast-png';
api.get('/img', (req, res) => {
...
let pngImage = png.encode({
data: pixelData,
width: columns,
height: rows,
alpha: false,
components: samplesPerPixel
});
let base64 = Buffer.from(pngImage, 'binary').toString('base64');
result = new Buffer(base64, 'base64');
res.contentType('image/png');
res.send(result);
}
Code that doesn't work :
import png from 'fast-png';
api.get('/img', (req, res) => {
...
let pngImage = png.encode({
data: pixelData,
width: columns,
height: rows,
alpha: false,
components: samplesPerPixel
});
res.contentType('image/png');
res.send(pngImage.buffer, 'binary');
}
If someone could explain why it doesn't work in this case?
Thanks
node.js express png
asked Nov 20 '18 at 15:23
HRK44HRK44
432213
add a comment |
0
0
0
1
I'm kinda confused on why I need to encode my binary data representing a PNG image to a base64 string so I can send it/display it via a REST API?
This is my code that works :
import png from 'fast-png';
api.get('/img', (req, res) => {
...
let pngImage = png.encode({
data: pixelData,
width: columns,
height: rows,
alpha: false,
components: samplesPerPixel
});
let base64 = Buffer.from(pngImage, 'binary').toString('base64');
result = new Buffer(base64, 'base64');
res.contentType('image/png');
res.send(result);
}
Code that doesn't work :
import png from 'fast-png';
api.get('/img', (req, res) => {
...
let pngImage = png.encode({
data: pixelData,
width: columns,
height: rows,
alpha: false,
components: samplesPerPixel
});
res.contentType('image/png');
res.send(pngImage.buffer, 'binary');
}
If someone could explain why it doesn't work in this case?
Thanks
node.js express png
asked Nov 20 '18 at 15:23
HRK44HRK44
432213
I'm kinda confused on why I need to encode my binary data representing a PNG image to a base64 string so I can send it/display it via a REST API?
This is my code that works :
import png from 'fast-png';
api.get('/img', (req, res) => {
...
let pngImage = png.encode({
data: pixelData,
width: columns,
height: rows,
alpha: false,
components: samplesPerPixel
});
let base64 = Buffer.from(pngImage, 'binary').toString('base64');
result = new Buffer(base64, 'base64');
res.contentType('image/png');
res.send(result);
}
Code that doesn't work :
import png from 'fast-png';
api.get('/img', (req, res) => {
...
let pngImage = png.encode({
data: pixelData,
width: columns,
height: rows,
alpha: false,
components: samplesPerPixel
});
res.contentType('image/png');
res.send(pngImage.buffer, 'binary');
}
If someone could explain why it doesn't work in this case?
Thanks
node.js express png
node.js express png
asked Nov 20 '18 at 15:23
HRK44HRK44
432213
asked Nov 20 '18 at 15:23
HRK44HRK44
432213
asked Nov 20 '18 at 15:23
HRK44HRK44
432213
asked Nov 20 '18 at 15:23
HRK44HRK44
432213
asked Nov 20 '18 at 15:23
HRK44HRK44
432213
432213
add a comment |
add a comment |
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