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trans.go
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trans.go
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// Copyright (c) 2020 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package main
import (
"context"
"database/sql"
drv "github.com/uber/athenadriver/go"
"log"
)
var (
ctx context.Context
db *sql.DB
)
func main() {
// 1. Set AWS Credential in Driver Config.
conf := drv.NewNoOpsConfig()
// 2. Open Connection.
dsn := conf.Stringify()
db, _ := sql.Open(drv.DriverName, dsn)
// A *DB is a pool of connections. Call Conn to reserve a connection for
// exclusive use.
tx, err := db.BeginTx(context.Background(), &sql.TxOptions{Isolation: sql.
LevelSerializable})
if err != nil {
log.Fatal(err)
}
_, execErr := tx.Exec("SELECT request_timestamp,elb_name "+
"from sampledb.elb_logs where url=? limit 1",
"https://www.example.com/jobs/878")
if execErr != nil {
_ = tx.Rollback()
log.Fatal(execErr)
}
if err := tx.Commit(); err != nil {
log.Fatal(err)
}
}