Function checkReadLocation

lib/api/apiUtils/object/checkReadLocation.js:11–25

* checkReadLocation - verify that a bucket's default read location exists * for a specified read data locator * @param {Config} config - Config object * @param {string} locationName - location constraint * @param {string} objectKey - object key * @param {string} bucketName - bucket name * @ret

(config, locationName, objectKey, bucketName)

 * if location exists; otherwise, null
 */
function checkReadLocation(config, locationName, objectKey, bucketName) {
    const readLocation = config.getLocationConstraint(locationName);
    if (readLocation) {
        const bucketMatch = readLocation.details &&
            readLocation.details.bucketMatch;
        const backendKey = bucketMatch ? objectKey :
            `${bucketName}/${objectKey}`;
        return {
            location: locationName,
            key: backendKey,
            locationType: readLocation.type,
        };
    }
    return null;
}

module.exports = checkReadLocation;