Home Backend Development Golang Using Google Bigtable in Go: A Complete Guide

Using Google Bigtable in Go: A Complete Guide

Jun 18, 2023 pm 05:15 PM
go language guide google bigtable

With the development of cloud computing and big data technology, Google Bigtable has become the preferred solution for many enterprises to store data. As a distributed NoSQL database service, Google Bigtable provides scalability, high availability, high performance and other features, and is favored by more and more enterprises. This article will introduce how to use Google Bigtable in Go language.

1. Install Golang SDK and Google Cloud SDK

Before using Google Bigtable, you need to install Golang SDK and Google Cloud SDK. You can download and install the latest version of Golang SDK from the Golang official website. At the same time, you also need to install the Google Cloud SDK in order to use various services provided by Google Cloud.

2. Create a Google Cloud account and start the Bigtable service

Before using Google Bigtable, you need to create a Google Cloud account and start the Bigtable service. You can choose different service packages according to your own needs. Specific package information can be found on the Google Cloud official website.

3. Create a new table

Google Bigtable uses tables to manage data, so you need to create a new table first. You can use the Bigtable Admin API provided by Google Cloud to create a new table, or you can use the command line tool gcloud to create a new table. Here we use gcloud to create new tables. The specific command is as follows:

gcloud bigtable instances create [INSTANCE_ID] 
     --cluster=[CLUSTER_ID] 
     --cluster-zone=[CLUSTER_ZONE] 
     --description=[DESCRIPTION] 
     --instance-type=[TYPE]
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Among them, [INSTANCE_ID] is the unique identifier of the new instance, [CLUSTER_ID] is a single node in the instance, [CLUSTER_ZONE] is the geographical location of the node, and [DESCRIPTION] is the instance. A short description, [TYPE] is the instance type.

4. Create a new column family

In Bigtable, a column family (Column Family) is a logical group of columns used to store data with similar attributes. New column families can be created using the command line tool cbt. The specific command is as follows:

cbt createfamily [TABLE_ID] [FAMILY_ID]
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Where [TABLE_ID] is the unique identifier of the table, [FAMILY_ID] is the unique identifier of the new column family.

5. Insert data

When using Bigtable to store data, you need to use the row key (Row Key) and column name (Column Name) to identify the data. Data can be inserted using the command line tool cbt.

cbt set [TABLE_ID] 
     [ROW_KEY] 
     [COLUMN_FAMILY]:[COLUMN_QUALIFIER]=[VALUE]
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Where [TABLE_ID] is the unique identifier of the table, [ROW_KEY] is the row key, [COLUMN_FAMILY] is the column family, [COLUMN_QUALIFIER] is the column name, and [VALUE] is the value.

6. Query data

You can use the command line tool cbt to query data.

cbt read [TABLE_ID] 
     [ROW_KEY] 
     [COLUMN_FAMILY]:[COLUMN_QUALIFIER]
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Where [TABLE_ID] is the unique identifier of the table, [ROW_KEY] is the row key, [COLUMN_FAMILY] is the column family, and [COLUMN_QUALIFIER] is the column name.

7. Using Google Bigtable in Go language

To use Google Bigtable in Go language, you need to use the Bigtable API provided by Google Cloud. You can use the following command to install Bigtable API:

go get -u cloud.google.com/go/bigtable
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After the installation is complete, you can use Bigtable API to read and write data. Below is a sample program for inserting data and querying the data:

package main

import (
    "context"
    "log"

    "cloud.google.com/go/bigtable"
)

func main() {
    ctx := context.Background()

    adminClient, err := bigtable.NewAdminClient(ctx, "project-id", "instance-id")
    if err != nil {
        log.Fatalf("Failed to create admin client: %v", err)
    }
    defer adminClient.Close()

    err = adminClient.CreateTable(ctx, "table-id")
    if err != nil {
        log.Fatalf("Failed to create table: %v", err)
    }

    err = adminClient.CreateColumnFamily(ctx, "table-id", "column-family")
    if err != nil {
        log.Fatalf("Failed to create column family: %v", err)
    }

    client, err := bigtable.NewClient(ctx, "project-id", "instance-id")
    if err != nil {
        log.Fatalf("Failed to create client: %v", err)
    }
    defer client.Close()

    table := client.Open("table-id")

    mut := bigtable.NewMutation()
    mut.Set("column-family", "column1", bigtable.Now(), []byte("value1"))
    mut.Set("column-family", "column2", bigtable.Now(), []byte("value2"))

    err = table.Apply(ctx, "row-key", mut)
    if err != nil {
        log.Fatalf("Failed to apply mutation: %v", err)
    }

    row, err := table.ReadRow(ctx, "row-key")
    if err != nil {
        log.Fatalf("Failed to read row: %v", err)
    }

    log.Printf("Row: %v
", row)
}
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In the above sample code, we first connect to Google Cloud, create a new table and a new column family, and then insert the data and query the data .

Please note that Google Bigtable is not suitable for all scenarios, and you need to choose whether to use it based on the actual situation. In addition, attention should be paid to data security and privacy protection.

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