PostgresDB Go Library

This library simplifies interaction with a Postgres database as key-value storage. It streamlines tasks such as storing, retrieving, and deleting data, as well as executing batch insertions and deletions.

Installation

Ensure you have Go installed on your system. If not, download it from the official Go website.

To install the library, run the following command in your terminal:

go get -u github.com/kwilteam/postgresKVdb

Usage

Begin by initializing the interface with the NewPostgresDB(name, dir string) function, which returns a new PostgresDB instance.

Here's how to get started:

package main

import (
    "fmt"
    "log"

    "github.com/tesfayh/postgresKVdb"
)

func main() {
    // Initialize the PostgresDB instance
    db, err := postgresKVdb.NewPostgresDB("inde-xer:indexer123@localhost:5433", "indexer")
    if err != nil {
        log.Fatalf("Failed to create a new instance of PostgresDB: %v", err)
    }

    // Define test data
    key := []byte("test_key")
    value := []byte("test_value")

    // Call the Set method
    err = db.Set(key, value)
    if err != nil {
        log.Fatalf("Failed to set  %v", err)
    }

    // Check if the value is set correctly
    result, err := db.Get(key)
    if err != nil {
        log.Fatalf("Failed to get  %v", err)
    }

    fmt.Printf("The value of the key is: %s\n", result)
}

Configuration

To configure the library for your Postgres setup, modify the connection parameters in the NewPostgresDB function call according to your database configuration.

Here's an example:

// Initialize the PostgresDB instance with custom connection parameters
db, err := postgresKVdb.NewPostgresDB("<username>:<password>@<host>:<port>", "<database_name>")

The connection parameters are as follows:

• <username>: Your PostgreSQL username
• <password>: Your PostgreSQL password
• <host>: The hostname or IP address of your PostgreSQL server
• <port>: The port number on which your PostgreSQL server is running
• <database_name>: The name of the PostgreSQL database you want to connect to

Error Handling

Errors within the library are handled using Go's built-in error handling mechanism. It's recommended to handle errors returned by library functions gracefully in your code.

Here's an example of error handling:

// Example error handling
result, err := db.Get(key)
if err != nil {
    log.Fatalf("Failed to get  %v", err)
}

Contributing

We welcome contributions from the community! If you encounter any bugs, have feature requests, or want to contribute code changes, please follow the guidelines outlined in our Contribution Guidelines.