Files
genai-toolbox/internal/sources/postgres/postgres.go
Kurtis Van Gent efe9e8bc97 chore: refactor sources/tools each into their own package (#42)
Moves all of the "source" and "tool" implementations into their own
packages. This layout makes it a bit more clear where the
implementations are, and seems likely to scale more cleanly as more
sources and tools are added.
2024-11-01 16:44:13 -06:00

85 lines
2.1 KiB
Go

// Copyright 2024 Google LLC
//
// 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 postgres
import (
"context"
"fmt"
"github.com/googleapis/genai-toolbox/internal/sources"
"github.com/jackc/pgx/v5/pgxpool"
)
const SourceKind string = "postgres"
// validate interface
var _ sources.SourceConfig = Config{}
type Config struct {
Name string `yaml:"name"`
Kind string `yaml:"kind"`
Host string `yaml:"host"`
Port string `yaml:"port"`
User string `yaml:"user"`
Password string `yaml:"password"`
Database string `yaml:"database"`
}
func (r Config) SourceConfigKind() string {
return SourceKind
}
func (r Config) Initialize() (sources.Source, error) {
pool, err := initPostgresConnectionPool(r.Host, r.Port, r.User, r.Password, r.Database)
if err != nil {
return nil, fmt.Errorf("Unable to create pool: %w", err)
}
err = pool.Ping(context.Background())
if err != nil {
return nil, fmt.Errorf("Unable to connect successfully: %w", err)
}
s := Source{
Name: r.Name,
Kind: SourceKind,
Pool: pool,
}
return s, nil
}
var _ sources.Source = Source{}
type Source struct {
Name string `yaml:"name"`
Kind string `yaml:"kind"`
Pool *pgxpool.Pool
}
func (s Source) SourceKind() string {
return SourceKind
}
func initPostgresConnectionPool(host, port, user, pass, dbname string) (*pgxpool.Pool, error) {
// urlExample := "postgres:dd//username:password@localhost:5432/database_name"
i := fmt.Sprintf("postgres://%s:%s@%s:%s/%s", user, pass, host, port, dbname)
pool, err := pgxpool.New(context.Background(), i)
if err != nil {
return nil, fmt.Errorf("Unable to create connection pool: %w", err)
}
return pool, nil
}