88 lines
2.5 KiB
Go
88 lines
2.5 KiB
Go
// VulcanizeDB
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// Copyright © 2022 Vulcanize
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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 <http://www.gnu.org/licenses/>.
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package postgres
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import (
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"fmt"
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"strings"
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"time"
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)
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// DriverType to explicitly type the kind of sql driver we are using
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type DriverType string
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const (
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PGX DriverType = "PGX"
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SQLX DriverType = "SQLX"
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Unknown DriverType = "Unknown"
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)
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// DefaultConfig are default parameters for connecting to a Postgres sql
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var DefaultConfig = Config{
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Hostname: "localhost",
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Port: 8076,
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DatabaseName: "vulcanize_testing",
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Username: "vdbm",
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Password: "password",
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Driver: "PGX",
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}
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// ResolveDriverType resolves a DriverType from a provided string
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func ResolveDriverType(str string) (DriverType, error) {
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switch strings.ToLower(str) {
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case "pgx", "pgxpool":
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return PGX, nil
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case "sqlx":
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return SQLX, nil
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default:
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return Unknown, fmt.Errorf("unrecognized driver type string: %s", str)
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}
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}
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// Config holds params for a Postgres db
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type Config struct {
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// conn string params
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Hostname string
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Port int
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DatabaseName string
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Username string
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Password string
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// conn settings
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MaxConns int
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MaxIdle int
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MinConns int
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MaxConnIdleTime time.Duration
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MaxConnLifetime time.Duration
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ConnTimeout time.Duration
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// driver type
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Driver DriverType
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}
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// DbConnectionString constructs and returns the connection string from the config
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func (c Config) DbConnectionString() string {
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if len(c.Username) > 0 && len(c.Password) > 0 {
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return fmt.Sprintf("postgresql://%s:%s@%s:%d/%s?sslmode=disable",
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c.Username, c.Password, c.Hostname, c.Port, c.DatabaseName)
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}
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if len(c.Username) > 0 && len(c.Password) == 0 {
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return fmt.Sprintf("postgresql://%s@%s:%d/%s?sslmode=disable",
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c.Username, c.Hostname, c.Port, c.DatabaseName)
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}
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return fmt.Sprintf("postgresql://%s:%d/%s?sslmode=disable", c.Hostname, c.Port, c.DatabaseName)
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}
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