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lambda-lgtm
- 12. ・node-imagemagick
・GraphicsMagick
・詳しくは Blog で
var fs = require('fs');
var gm = require('gm');
var aws = require('aws-sdk');
var s3 = new aws.S3({apiVersion: '2006-03-01'});
exports.handler = function(event, context) {
var bucket = event.Records[0].s3.bucket.name;
var key = event.Records[0].s3.object.key;
s3.getObject({
Bucket: bucket,
Key: key
}, function(err, data) {
if (err) {
context.done('get failed', err);
} else {
var contentType = data.ContentType;
var extension = contentType.split('/').pop();
gm(data.Body)
.options({ imageMagick: true })
.resize(480, 269)
.fill("#81BD27")
.drawText(200, 250, 'LGTM')
.font('/usr/share/fonts/dejavu/DejaVuSans.ttf')
.fontSize(40)
.toBuffer(extension, function(err, stdout) {
if (err) {
context.done('resize and drawtext failed', err);
} else {
s3.putObject({
Bucket: 'lambda-image-lgtm',
Key: key,
Body: new Buffer(stdout, 'binary'),
ContentType: contentType
}, function(err, res) {
if (err) {
context.done('put failed', err);
} else {
context.done();
}
});
}
});
}
});
};
