我使用一个 Cloud Function 来调整图像大小,第二个用于将新的图像 URL 上传到 Cloud Firestore。
但是有些东西不起作用,因为第二个函数永远不会运行。我需要可以更新 url 的 uid 和 postId。
如何调用第二个函数来更新 Firestore 中的 img url?
代码
const { functions, tmpdir, dirname, join, sharp, fse, gcs } = require('../../admin');
const runtimeOpts = {
timeoutSeconds: 120,
memory: '1GB',
};
exports.resizeImages = functions
.runWith(runtimeOpts)
.storage.object()
.onFinalize(async (object, context) => {
const bucket = gcs.bucket(object.bucket);
const filePath = object.name;
const fileName = filePath.split('/').pop();
const bucketDir = dirname(filePath);
const workingDir = join(tmpdir(), 'resize');
const tmpFilePath = join(workingDir, 'source.png');
if (fileName.includes('@s_') || !object.contentType.includes('image')) {
return false;
}
await fse.ensureDir(workingDir);
await bucket.file(filePath).download({ destination: tmpFilePath });
// creates 3 new images with these sizes..
const sizes = [1920, 720, 100];
var newUrl = null;
const uploadPromises = sizes.map(async size => {
const ext = fileName.split('.').pop();
const imgName = fileName.replace(`.${ext}`, '');
const newImgName = `${imgName}@s_${size}.${ext}`;
var imgPath = join(workingDir, newImgName);
newUrl = imgPath;
await sharp(tmpFilePath)
.resize({ width: size })
.toFile(imgPath);
return bucket.upload(imgPath, {
destination: join(bucketDir, newImgName),
});
});
隔江千里
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