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pipeline_user.go
59 lines (50 loc) · 1.75 KB
/
pipeline_user.go
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// Copyright 2017 The Nakama Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package server
import (
"strconv"
"strings"
"github.com/satori/go.uuid"
"github.com/uber-go/zap"
)
func (p *pipeline) usersFetch(logger zap.Logger, session *session, envelope *Envelope) {
userIds := envelope.GetUsersFetch().UserIds
if len(userIds) == 0 {
session.Send(ErrorMessageBadInput(envelope.CollationId, "List must contain at least one user ID"))
return
}
statements := make([]string, 0)
params := make([]interface{}, 0)
counter := 1
for _, uid := range userIds {
userID, err := uuid.FromBytes(uid)
if err == nil {
statement := "$" + strconv.Itoa(counter)
counter += 1
statements = append(statements, statement)
params = append(params, userID.Bytes())
}
}
if len(statements) == 0 {
session.Send(ErrorMessageBadInput(envelope.CollationId, "No valid user IDs received"))
return
}
query := "WHERE users.id IN (" + strings.Join(statements, ", ") + ")"
users, err := p.querySocialGraph(logger, query, params)
if err != nil {
session.Send(ErrorMessageRuntimeException(envelope.CollationId, "Could not retrieve users"))
return
}
session.Send(&Envelope{CollationId: envelope.CollationId, Payload: &Envelope_Users{Users: &TUsers{Users: users}}})
}