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import * as express from 'express'
import { query, validationResult } from 'express-validator'
import { logger } from '../../helpers/logger'
function areValidationErrors (req: express.Request, res: express.Response) {
const errors = validationResult(req)
if (!errors.isEmpty()) {
logger.warn('Incorrect request parameters', { path: req.originalUrl, err: errors.mapped() })
res.fail({
message: 'Incorrect request parameters: ' + Object.keys(errors.mapped()).join(', '),
instance: req.originalUrl,
data: {
'invalid-params': errors.mapped()
}
})
return true
}
return false
}
function checkSort (sortableColumns: string[], tags: string[] = []) {
return [
query('sort').optional().isIn(sortableColumns).withMessage('Should have correct sortable column'),
(req: express.Request, res: express.Response, next: express.NextFunction) => {
logger.debug('Checking sort parameters', { parameters: req.query, tags })
if (areValidationErrors(req, res)) return
return next()
}
]
}
function createSortableColumns (sortableColumns: string[]) {
const sortableColumnDesc = sortableColumns.map(sortableColumn => '-' + sortableColumn)
return sortableColumns.concat(sortableColumnDesc)
}
// ---------------------------------------------------------------------------
export {
areValidationErrors,
checkSort,
createSortableColumns
}
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