Custom Validation

[STDigitalIN]

Sometime async custom validation is return before async request completes.

niv.extend('existsS3', async ({ value, args }) => {
let bucket = args[0];
let prefix = args[1];
let s3Client = new S3Client({
region: process.env.AWS_REGION,
});

try {
    await s3Client.send(
        new HeadObjectCommand({
            Bucket: bucket,
            Key: path.join(prefix, value),
        })
    );
    return true;
} catch (error) {
    console.log('errrrr');

    return false;
}

});

const v = new niv.Validator(metadata, {
tracks: 'required|array|between:1,100',
'tracks..title': 'required|string|maxLength:150',
'tracks..mediaUrl': required|string|wavFile|existsS3:${sourceBucket},${sourcePrefix},
});
const matched = await v.check();

matched returns true before existsS3 rule completes its execution .