mirror of
https://gitlab.dit.htwk-leipzig.de/htwk-software/htwkalender.git
synced 2025-07-16 09:38:49 +02:00
56 lines
1.6 KiB
Go
56 lines
1.6 KiB
Go
//Calendar implementation for the HTWK Leipzig timetable. Evaluation and display of the individual dates in iCal format.
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//Copyright (C) 2024 HTWKalender support@htwkalender.de
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//This program is free software: you can redistribute it and/or modify
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//it under the terms of the GNU Affero General Public License as published by
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//the Free Software Foundation, either version 3 of the License, or
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//(at your option) any later version.
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//This program is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU Affero General Public License for more details.
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//You should have received a copy of the GNU Affero General Public License
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//along with this program. If not, see <https://www.gnu.org/licenses/>.
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package grpc
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import (
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/insecure"
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"google.golang.org/grpc/keepalive"
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"log/slog"
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"sync"
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"time"
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)
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var conn *grpc.ClientConn
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var once sync.Once
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func ConnectGRPCServer(host string) *grpc.ClientConn {
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once.Do(func() {
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var err error
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conn, err = grpc.NewClient(
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host+":50051",
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grpc.WithTransportCredentials(insecure.NewCredentials()),
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grpc.WithKeepaliveParams(keepalive.ClientParameters{
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Time: 2 * time.Minute,
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Timeout: 20 * time.Second,
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PermitWithoutStream: true,
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}),
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)
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if err != nil {
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slog.Error("could not connect to grpc server", "error", err)
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}
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})
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return conn
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}
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func CloseGRPCServer(conn *grpc.ClientConn) {
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err := conn.Close()
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if err != nil {
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slog.Error("could not close connection", "error", err)
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}
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}
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