Page 732 - Nodejs 교과서 개정2판

௿ۄ਋٘ ಔ࣌झо प೯ೡ JOEFY KTܳ ੘ࢿ೤פ׮

gcp-upload/index.js

const storage = require('@google-cloud/storage')();
const sharp = require('sharp');
➊
exports.resizeAndUpload = (data, context) => {
➋

const { bucket, name } = data;
const ext = name.split('.')[Key.split('.').length - 1];
const requiredFormat = ext === 'jpg' ? 'jpeg' : ext; // sharp에서는 jpg 대신 jpeg를 사용합니다
console.log('name', name, 'ext', ext);
➌
const file = storage.bucket(bucket).file(name);
const readStream = file.createReadStream();

const newFile = storage.bucket(bucket).file(`thumb/${name}`);
const writeStream = newFile.createWriteStream();
➍

sharp(readStream)
.resize(200, 200, { fit: 'inside' })
.toFormat(requiredFormat)
.pipe(writeStream);
➎
return new Promise((resolve, reject) => {
writeStream.on('finish', () => {
resolve(`thumb/${name}`);
});
writeStream.on('error', reject);
});
};

➊ resizeAndUpload ೣࣻо ௿ۄ਋٘ ಔ࣌झܳ ഐ୹ೡ ٸ प೯غח ೣࣻੑפ׮ ݒѐ߸ࣻ۽ data৬ contextо
઱য૘פ׮ dataীח ഐ୹ ؘ੉ఠী ؀ೠ ੿ࠁо ׸ѹ ੓Ҋ contextীח प೯غח ೣࣻ ജ҃ী ؀ೠ ੿ࠁо
׸ѹ ੓णפ׮ ૒੽ DPOTPMF MPHೞৈ যځೠ ੿ࠁٜ੉ ٜয ੓ח૑ ഛੋ೧ࠁח Ѫ੉ જणפ׮

➋ data ё୓۽ࠗఠ bucket ߡఉݺ name ౵ੌݺ ਸ ߉ই৬ ഛ੢੗ܳ ୶୹೤פ׮

➌ storage.buckeU ݫࢲ٘۽ ߡఉਸ ࢸ੿ೠ ٍ file ݫࢲ٘۽ ౵ੌਸ ૑੿೤פ׮ ૑੿ೠ ౵ੌਸ ੍Ѣա ॳח
झ౟ܿਸ ࢤࢿೡ ࣻ ੓णפ׮

➍ TIBSQ ೣࣻী ౵ੌ ߡಌܳ ֍Ҋ resize ݫࢲ٘۽ ௼ӝܳ ૑੿೤פ׮ ୐ ߣ૩৬ ف ߣ૩ ੋࣻח о۽৬ ࣁ۽

ց࠺ܳ ੄޷೤פ׮ അ੤ 200 200ਵ۽ ઱যઉ ੓णפ׮ ೞ૑݅ о۽ QY ࣁ۽ QY۽ ܻࢎ੉૚غח