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scan_example_test.go
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scan_example_test.go
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/*
SPDX-License-Identifier: AGPL-3.0-only
Copyright (C) 2021, Tim Möhlmann
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package pbpgx_test
import (
"context"
"fmt"
"time"
"github.com/jackc/pgx/v4"
"github.com/muhlemmer/pbpgx"
gen "github.com/muhlemmer/pbpgx/example_gen"
"google.golang.org/protobuf/encoding/protojson"
)
func ExampleScan() {
ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Second)
defer cancel()
conn, err := pgx.Connect(ctx, "user=pbpgx_tester host=db port=5432 dbname=pbpgx_tester")
if err != nil {
panic(err)
}
defer conn.Close(ctx)
rows, err := conn.Query(ctx, "select id, title, price, created from products;")
if err != nil {
panic(err)
}
result := new(gen.ProductList)
result.Products, err = pbpgx.Scan[*gen.Product](rows)
if err != nil {
panic(err)
}
out, _ := protojson.Marshal(result)
fmt.Println(string(out))
// {"products":[{"id":"1","title":"one","price":9.99,"created":"2022-01-07T13:47:07Z"},{"id":"2","title":"two","price":10.45,"created":"2022-01-07T13:47:08Z"},{"id":"3","title":"three","created":"2022-01-07T13:47:09Z"},{"id":"4","title":"four","price":100,"created":"2022-01-07T13:47:10Z"},{"id":"5","title":"five","price":0.9,"created":"2022-01-07T13:47:11Z"}]}
}