val aggregation = Aggregation.newAggregation(Aggregation.sample(1))
        val commit = mongoOperations.aggregate(aggregation, "commit", Commit::class.java).uniqueMappedResult
        commit?.message
            ?.let { return ResponseEntity<String>(commit.message, HttpStatus.OK) }
            ?: throw ResponseStatusException(HttpStatus.NOT_FOUND, "Unable to find commit")

Commit::class.java