Quick start

Create a local cluster on a single host

The local cluster setup on a single host is intended for development and learning. For production deployment, performance benchmarking, or deploying a true multi-node on multi-host setup, see Deploy YugabyteDB.

Install YugabyteDB

Installing YugabyteDB involves completing prerequisites and downloading the YugabyteDB package.

Prerequisites

Before installing YugabyteDB, ensure that you have the following available:

  1. One of the supported operating systems.

  2. Python 3. To check the version, execute the following command:

    python --version

    Python 3.7.3

    By default, CentOS 8 does not have an unversioned system-wide python command. To fix this, set python3 as the alternative for python by running sudo alternatives --set python /usr/bin/python3.

    Starting from Ubuntu 20.04, python is no longer available. To fix this, run sudo apt install python-is-python3.

  3. wget or curl.

    The instructions use the wget command to download files. If you prefer to use curl, you can replace wget with curl -O.

    To install wget:

    • On CentOS, run yum install wget
    • On Ubuntu, run apt install wget

    To install curl:

    • On CentOS, run yum install curl
    • On Ubuntu, run apt install curl

ulimits

Because each tablet maps to its own file, you can create a very large number of files in the current shell by experimenting with several hundred tables and several tablets per table. You need to configure ulimit values.

Download

YugabyteDB supports both x86 and ARM (aarch64) CPU architectures. Download packages ending in x86_64.tar.gz to run on x86, and packages ending in aarch64.tar.gz to run on ARM.

The following instructions are for downloading the Preview release of YugabyteDB, which is recommended for development and testing only. For other versions, see Releases.

Download YugabyteDB as follows:

  1. Download the YugabyteDB package using one of the following wget commands:

    wget https://downloads.yugabyte.com/releases/2.19.3.0/yugabyte-2.19.3.0-b140-linux-x86_64.tar.gz

    Or:

    wget https://downloads.yugabyte.com/releases/2.19.3.0/yugabyte-2.19.3.0-b140-el8-aarch64.tar.gz

  2. Extract the package and then change directories to the YugabyteDB home.

    tar xvfz yugabyte-2.19.3.0-b140-linux-x86_64.tar.gz && cd yugabyte-2.19.3.0/

    Or:

    tar xvfz yugabyte-2.19.3.0-b140-el8-aarch64.tar.gz && cd yugabyte-2.19.3.0/

Configure

To configure YugabyteDB, run the following shell script:

./bin/post_install.sh

Create a local cluster

Use the yugabyted utility to create and manage universes.

To create a single-node local cluster with a replication factor (RF) of 1, run the following command:

./bin/yugabyted start

Expect an output similar to the following:

+----------------------------------------------------------------------------------------------------------+
|                                                yugabyted                                                 |
+----------------------------------------------------------------------------------------------------------+
| Status              : Running.                                                                           |
| Replication Factor  : 1                                                                                  |
| YugabyteDB UI       : http://127.0.0.1:15433                                                             |
| JDBC                : jdbc:postgresql://127.0.0.1:5433/yugabyte?user=yugabyte&password=yugabyte          |
| YSQL                : bin/ysqlsh   -U yugabyte -d yugabyte                                               |
| YCQL                : bin/ycqlsh   -u cassandra                                                          |
| Data Dir            : /Users/myuser/var/data                                                             |
| Log Dir             : /Users/myuser/var/logs                                                             |
| Universe UUID       : 41e54e9f-6f2f-4a46-befe-e0cd65d3056a                                               |
+----------------------------------------------------------------------------------------------------------+

After the cluster has been created, clients can connect to the YSQL and YCQL APIs at http://localhost:5433 and http://localhost:9042 respectively. You can also check ~/var/data to see the data directory and ~/var/logs to see the logs directory.

Execute the following command to check the cluster status at any time:

./bin/yugabyted status

Connect to the database

Using the YugabyteDB SQL shell, ysqlsh, you can connect to your cluster and interact with it using distributed SQL. ysqlsh is installed with YugabyteDB and is located in the bin directory of the YugabyteDB home directory.

(If you have previously installed YugabyteDB version 2.8 or later and created a cluster on the same computer, you may need to upgrade the YSQL system catalog to run the latest features.)

To open the YSQL shell, run ysqlsh:

./bin/ysqlsh

ysqlsh (11.2-YB-2.19.3.0-b0)
Type "help" for help.

yugabyte=#

To load sample data and explore an example using ysqlsh, follow the instructions in Install the Retail Analytics sample database.

Monitor your cluster

When you start a cluster using yugabyted, you can monitor the cluster using the YugabyteDB UI, available at http://127.0.0.1:15433.

YugabyteDB UI Cluster Overview

The YugabyteDB UI provides cluster status, node information, performance metrics, and more.

Build an application

Applications connect to and interact with YugabyteDB using API client libraries (also known as client drivers). This section shows how to connect applications to your cluster using your favorite programming language.

Choose your language

Choose the language you want to use to build your application.

The Java application connects to a YugabyteDB cluster using the topology-aware Yugabyte JDBC driver and performs basic SQL operations. Use the application as a template to get started with YugabyteDB in Java.

The application requires the following:

To build and run the application, do the following:

  1. Clone the sample application to your computer:

    git clone https://github.com/YugabyteDB-Samples/yugabyte-simple-java-app.git && cd yugabyte-simple-java-app

  2. Provide connection parameters.

    (You can skip this step and use the defaults if your cluster is running locally and listening on 127.0.0.1:5433.)

    The application needs to establish a connection to the YugabyteDB cluster. To do this:

    • Open the app.properties file located in the application src/main/resources/ folder.

    • Set the following configuration parameters:

      • host - the host name of your YugabyteDB cluster. For local clusters, use the default (127.0.0.1). For YugabyteDB Managed, select your cluster on the Clusters page, and click Settings. The host is displayed under Connection Parameters.
      • port - the port number for the driver to use (the default YugabyteDB YSQL port is 5433).
      • database - the name of the database you are connecting to (the default is yugabyte).
      • dbUser and dbPassword - the username and password for the YugabyteDB database. For local clusters, use the defaults (yugabyte). For YugabyteDB Managed, use the credentials in the credentials file you downloaded.

    • YugabyteDB Managed requires SSL connections, so you need to set the following additional parameters:

      • sslMode - the SSL mode to use; use verify-full.
      • sslRootCert - the full path to the YugabyteDB Managed cluster CA certificate.

    • Save the file.

  3. Build the application.

    $ mvn clean package

  4. Start the application.

    $ java -cp target/yugabyte-simple-java-app-1.0-SNAPSHOT.jar SampleApp

If you are running the application on a free or single node cluster, the driver displays a warning that the load balance failed and will fall back to a regular connection.

You should see output similar to the following:

>>>> Successfully connected to YugabyteDB!
>>>> Successfully created DemoAccount table.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 10000
name = John, age = 28, country = Canada, balance = 9000

>>>> Transferred 800 between accounts.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 9200
name = John, age = 28, country = Canada, balance = 9800

You have successfully executed a basic Java application that works with YugabyteDB.

Explore the application logic

The Go application connects to a YugabyteDB cluster using the Go PostgreSQL driver and performs basic SQL operations. Use the application as a template to get started with YugabyteDB in Go.

The application requires the following:

  • Go (tested with version 1.17.6).

To build and run the application, do the following:

  1. Clone the sample application to your computer:

    git clone https://github.com/YugabyteDB-Samples/yugabyte-simple-go-app.git && cd yugabyte-simple-go-app

  2. Provide connection parameters.

    (You can skip this step and use the defaults if your cluster is running locally and listening on 127.0.0.1:5433.)

    The application needs to establish a connection to the YugabyteDB cluster. To do this:

    • Open the sample-app.go file.

    • Set the following configuration parameter constants:

      • host - the host name of your YugabyteDB cluster. For local clusters, use the default (127.0.0.1). For YugabyteDB Managed, select your cluster on the Clusters page, and click Settings. The host is displayed under Connection Parameters.
      • port - the port number for the driver to use (the default YugabyteDB YSQL port is 5433).
      • dbName - the name of the database you are connecting to (the default is yugabyte).
      • dbUser and dbPassword - the username and password for the YugabyteDB database. For local clusters, use the defaults (yugabyte). For YugabyteDB Managed, use the credentials in the credentials file you downloaded.

    • YugabyteDB Managed requires SSL connections, so you need to set the following additional parameters:

      • sslMode - the SSL mode to use; use verify-full.
      • sslRootCert - the full path to the YugabyteDB Managed cluster CA certificate.

    • Save the file.

  3. Initialize the GO111MODULE variable.

    $ export GO111MODULE=auto

  4. Import the Go PostgreSQL driver.

    $ go get github.com/lib/pq

  5. Start the application.

    $ go run sample-app.go

You should see output similar to the following:

>>>> Successfully connected to YugabyteDB!
>>>> Successfully created table DemoAccount.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 10000
name = John, age = 28, country = Canada, balance = 9000
>>>> Transferred 800 between accounts.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 9200
name = John, age = 28, country = Canada, balance = 9800

You have successfully executed a basic Go application that works with YugabyteDB.

Explore the application logic

The Python application connects to a YugabyteDB cluster using the Python psycopg2 PostgreSQL database adapter and performs basic SQL operations. Use the application as a template to get started with YugabyteDB in Python.

The application requires the following:

  • Python 3.6 or later (Python 3.9.7 or later if running macOS on Apple silicon).

To build and run the application, do the following:

  1. Clone the sample application to your computer:

    git clone https://github.com/YugabyteDB-Samples/yugabyte-simple-python-app.git && cd yugabyte-simple-python-app

  2. Provide connection parameters.

    (You can skip this step and use the defaults if your cluster is running locally and listening on 127.0.0.1:5433.)

    The application needs to establish a connection to the YugabyteDB cluster. To do this:

    • Open the sample-app.py file.

    • Set the following configuration parameter constants:

      • host - the host name of your YugabyteDB cluster. For local clusters, use the default (127.0.0.1). For YugabyteDB Managed, select your cluster on the Clusters page, and click Settings. The host is displayed under Connection Parameters.
      • port - the port number for the driver to use (the default YugabyteDB YSQL port is 5433).
      • dbName - the name of the database you are connecting to (the default is yugabyte).
      • dbUser and dbPassword - the username and password for the YugabyteDB database. For local clusters, use the defaults (yugabyte). For YugabyteDB Managed, use the credentials in the credentials file you downloaded.

    • YugabyteDB Managed requires SSL connections, so you need to set the following additional parameters:

      • sslMode - the SSL mode to use; use verify-full.
      • sslRootCert - the full path to the YugabyteDB Managed cluster CA certificate.

    • Save the file.

  3. Install psycopg2 PostgreSQL database adapter.

    $ pip3 install psycopg2-binary

  4. Start the application.

    $ python3 sample-app.py

You should see output similar to the following:

>>>> Successfully connected to YugabyteDB!
>>>> Successfully created table DemoAccount.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 10000
name = John, age = 28, country = Canada, balance = 9000
>>>> Transferred 800 between accounts.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 9200
name = John, age = 28, country = Canada, balance = 9800

You have successfully executed a basic Python application that works with YugabyteDB.

Explore the application logic

The Node.js application connects to a YugabyteDB cluster using the node-postgres driver and performs basic SQL operations. Use the application as a template to get started with YugabyteDB in Node.js.

The application requires the following:

To build and run the application, do the following:

  1. Clone the sample application to your computer:

    git clone https://github.com/YugabyteDB-Samples/yugabyte-simple-node-app.git && cd yugabyte-simple-node-app

  2. Provide connection parameters.

    (You can skip this step and use the defaults if your cluster is running locally and listening on 127.0.0.1:5433.)

    The application needs to establish a connection to the YugabyteDB cluster. To do this:

    • Open the sample-app.js file.

    • Set the following configuration parameter constants:

      • host - the host name of your YugabyteDB cluster. For local clusters, use the default (127.0.0.1). For YugabyteDB Managed, select your cluster on the Clusters page, and click Settings. The host is displayed under Connection Parameters.
      • port - the port number for the driver to use (the default YugabyteDB YSQL port is 5433).
      • database - the name of the database you are connecting to (the default is yugabyte).
      • user and password - the username and password for the YugabyteDB database. For local clusters, use the defaults (yugabyte). For YugabyteDB Managed, use the credentials in the credentials file you downloaded.

    • YugabyteDB Managed requires SSL connections, so you need to set the following additional parameters:

      • ssl - To enable verify-ca SSL mode, the rejectUnauthorized property is set to true to require root certificate chain validation; replace path_to_your_root_certificate with the full path to the YugabyteDB Managed cluster CA certificate.

    • Save the file.

  3. Install the node-postgres module.

    npm install pg

  4. Install the async utility:

    npm install --save async

  5. Start the application.

    $ node sample-app.js

You should see output similar to the following:

>>>> Successfully connected to YugabyteDB!
>>>> Successfully created table DemoAccount.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 10000
name = John, age = 28, country = Canada, balance = 9000
>>>> Transferred 800 between accounts.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 9200
name = John, age = 28, country = Canada, balance = 9800

You have successfully executed a basic Node.js application that works with YugabyteDB.

Explore the application logic

The C application connects to a YugabyteDB cluster using the libpq driver and performs basic SQL operations. Use the application as a template to get started with YugabyteDB in C.

The application requires the following:

  • 32-bit (x86) or 64-bit (x64) architecture machine. (Use Rosetta to build and run on Apple silicon.)
  • gcc 4.1.2 or later, or clang 3.4 or later installed.
  • OpenSSL 1.1.1 or later (used by libpq to establish secure SSL connections).
  • libpq. Homebrew users on macOS can install using brew install libpq. You can download the PostgreSQL binaries and source from PostgreSQL Downloads.

To build and run the application, do the following:

  1. Clone the sample application to your computer:

    git clone https://github.com/YugabyteDB-Samples/yugabyte-simple-c-app.git && cd yugabyte-simple-c-app

  2. Provide connection parameters.

    (You can skip this step and use the defaults if your cluster is running locally and listening on 127.0.0.1:5433.)

    The application needs to establish a connection to the YugabyteDB cluster. To do this:

    • Open the sample-app.c file.

    • Set the following configuration-related macros:

      • HOST - the host name of your YugabyteDB cluster. For local clusters, use the default (127.0.0.1). For YugabyteDB Managed, select your cluster on the Clusters page, and click Settings. The host is displayed under Connection Parameters.
      • PORT - the port number for the driver to use (the default YugabyteDB YSQL port is 5433).
      • DB_NAME - the name of the database you are connecting to (the default is yugabyte).
      • USER and PASSWORD - the username and password for the YugabyteDB database. For local clusters, use the defaults (yugabyte). For YugabyteDB Managed, use the credentials in the credentials file you downloaded.

    • YugabyteDB Managed requires SSL connections, so you need to set the following additional parameters:

      • SSL_MODE - the SSL mode to use; use verify-full.
      • SSL_ROOT_CERT - the full path to the YugabyteDB Managed cluster CA certificate.

    • Save the file.

  3. Build the application with gcc or clang.

    gcc sample-app.c -o sample-app -I<path-to-libpq>/libpq/include -L<path-to-libpq>/libpq/lib -lpq

  4. Replace <path-to-libpq> with the path to the libpq installation; for example, /usr/local/opt.

  5. Start the application.

    $ ./sample-app

You should see output similar to the following:

>>>> Successfully connected to YugabyteDB!
>>>> Successfully created table DemoAccount.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 10000
name = John, age = 28, country = Canada, balance = 9000
>>>> Transferred 800 between accounts.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 9200
name = John, age = 28, country = Canada, balance = 9800

You have successfully executed a basic C application that works with YugabyteDB.

Explore the application logic

The C++ application connects to a YugabyteDB cluster using the libpqxx driver and performs basic SQL operations. Use the application as a template to get started with YugabyteDB in C++.

The application requires the following:

  • 32-bit (x86) or 64-bit (x64) architecture machine. (Use Rosetta to build and run on Apple silicon.)
  • gcc 4.1.2 or later, or clang 3.4 or later installed.
  • OpenSSL 1.1.1 or later (used by libpq and libpqxx to establish secure SSL connections).
  • libpq. Homebrew users on macOS can install using brew install libpq. You can download the PostgreSQL binaries and source from PostgreSQL Downloads.
  • libpqxx. Homebrew users on macOS can install using brew install libpqxx. To build the driver yourself, refer to Building libpqxx.

To build and run the application, do the following:

  1. Clone the sample application to your computer:

    git clone https://github.com/YugabyteDB-Samples/yugabyte-simple-cpp-app.git && cd yugabyte-simple-cpp-app

  2. Provide connection parameters.

    (You can skip this step and use the defaults if your cluster is running locally and listening on 127.0.0.1:5433.)

    The application needs to establish a connection to the YugabyteDB cluster. To do this:

    • Open the sample-app.cpp file.

    • Set the following configuration-related constants:

      • HOST - the host name of your YugabyteDB cluster. For local clusters, use the default (127.0.0.1). For YugabyteDB Managed, select your cluster on the Clusters page, and click Settings. The host is displayed under Connection Parameters.
      • PORT - the port number for the driver to use (the default YugabyteDB YSQL port is 5433).
      • DB_NAME - the name of the database you are connecting to (the default is yugabyte).
      • USER and PASSWORD - the username and password for the YugabyteDB database. For local clusters, use the defaults (yugabyte). For YugabyteDB Managed, use the credentials in the credentials file you downloaded.

    • YugabyteDB Managed requires SSL connections, so you need to set the following additional parameters:

      • SSL_MODE - the SSL mode to use; use verify-full.
      • SSL_ROOT_CERT - the full path to the YugabyteDB Managed cluster CA certificate.

    • Save the file.

  3. Build the application with gcc or clang.

    g++ -std=c++17 sample-app.cpp -o sample-app -lpqxx -lpq \
-I<path-to-libpq>/libpq/include -I<path-to-libpqxx>/libpqxx/include \
-L<path-to-libpq>/libpq/lib -L<path-to-libpqxx>/libpqxx/lib

  4. Replace <path-to-libpq> with the path to the libpq installation, and <path-to-libpqxx> with the path to the libpqxx installation; for example, /usr/local/opt.

  5. Start the application.

    $ ./sample-app

You should see output similar to the following:

>>>> Successfully connected to YugabyteDB!
>>>> Successfully created table DemoAccount.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 10000
name = John, age = 28, country = Canada, balance = 9000
>>>> Transferred 800 between accounts.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 9200
name = John, age = 28, country = Canada, balance = 9800

You have successfully executed a basic C++ application that works with YugabyteDB.

Explore the application logic

The C# application connects to a YugabyteDB cluster using the Npgsql driver and performs basic SQL operations. Use the application as a template to get started with YugabyteDB in C#.

The application requires the following:

To build and run the application, do the following:

  1. Clone the sample application to your computer:

    git clone https://github.com/YugabyteDB-Samples/yugabyte-simple-csharp-app.git && cd yugabyte-simple-csharp-app

    The yugabyte-simple-csharp-app.csproj file includes the following package reference to include the driver:

    <PackageReference Include="npgsql" Version="6.0.3" />

  2. Provide connection parameters.

    (You can skip this step and use the defaults if your cluster is running locally and listening on 127.0.0.1:5433.)

    The application needs to establish a connection to the YugabyteDB cluster. To do this:

    • Open the sample-app.cs file.

    • Set the following configuration-related parameters:

      • urlBuilder.Host - the host name of your YugabyteDB cluster. For local clusters, use the default (127.0.0.1). For YugabyteDB Managed, select your cluster on the Clusters page, and click Settings. The host is displayed under Connection Parameters.
      • urlBuilder.Port - the port number for the driver to use (the default YugabyteDB YSQL port is 5433).
      • urlBuilder.Database - the name of the database you are connecting to (the default is yugabyte).
      • urlBuilder.Username and urlBuilder.Password - the username and password for the YugabyteDB database. For local clusters, use the defaults (yugabyte). For YugabyteDB Managed, use the credentials in the credentials file you downloaded.

    • YugabyteDB Managed requires SSL connections, so you need to set the following additional parameters:

      • urlBuilder.SslMode - the SSL mode to use; use SslMode.VerifyFull.
      • urlBuilder.RootCertificate - the full path to the YugabyteDB Managed cluster CA certificate.

    • Save the file.

  3. Build and run the application.

    dotnet run

You should see output similar to the following:

>>>> Successfully connected to YugabyteDB!
>>>> Successfully created table DemoAccount.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 10000
name = John, age = 28, country = Canada, balance = 9000
>>>> Transferred 800 between accounts.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 9200
name = John, age = 28, country = Canada, balance = 9800

You have successfully executed a basic C# application that works with YugabyteDB.

Explore the application logic

The Ruby application connects to a YugabyteDB cluster using the Ruby Pg driver and performs basic SQL operations. Use the application as a template to get started with YugabyteDB in Ruby.

The application requires the following:

  • Ruby 3.1 or later.

  • OpenSSL 1.1.1 or later (used by libpq and pg to establish secure SSL connections).

  • libpq. Homebrew users on macOS can install using brew install libpq. You can download the PostgreSQL binaries and source from PostgreSQL Downloads.

  • Ruby pg. To install Ruby pg, run the following command:

    gem install pg -- --with-pg-include=<path-to-libpq>/libpq/include --with-pg-lib=<path-to-libpq>/libpq/lib

    Replace <path-to-libpq> with the path to the libpq installation; for example, /usr/local/opt.

To build and run the application, do the following:

  1. Clone the sample application to your computer:

    git clone https://github.com/YugabyteDB-Samples/yugabyte-simple-ruby-app.git && cd yugabyte-simple-ruby-app

  2. Provide connection parameters.

    (You can skip this step and use the defaults if your cluster is running locally and listening on 127.0.0.1:5433.)

    The application needs to establish a connection to the YugabyteDB cluster. To do this:

    • Open the sample-app.rb file.

    • Set the following configuration-related parameters:

      • host - the host name of your YugabyteDB cluster. For local clusters, use the default (127.0.0.1). For YugabyteDB Managed, select your cluster on the Clusters page, and click Settings. The host is displayed under Connection Parameters.
      • port - the port number for the driver to use (the default YugabyteDB YSQL port is 5433).
      • dbname - the name of the database you are connecting to (the default is yugabyte).
      • user and password - the username and password for the YugabyteDB database. For local clusters, use the defaults (yugabyte). For YugabyteDB Managed, use the credentials in the credentials file you downloaded.

    • YugabyteDB Managed requires SSL connections, so you need to set the following additional parameters:

      • sslmode - the SSL mode to use; use verify-full.
      • sslrootcert - the full path to the YugabyteDB Managed cluster CA certificate.

    • Save the file.

  3. Make the application file executable.

    chmod +x sample-app.rb

  4. Run the application.

    $ ./sample-app.rb

You should see output similar to the following:

>>>> Successfully connected to YugabyteDB!
>>>> Successfully created table DemoAccount.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 10000
name = John, age = 28, country = Canada, balance = 9000
>>>> Transferred 800 between accounts.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 9200
name = John, age = 28, country = Canada, balance = 9800

You have successfully executed a basic Ruby application that works with YugabyteDB.

Explore the application logic

The Rust application connects to a YugabyteDB cluster using the Rust-Postgres driver and performs basic SQL operations. Use the application as a template to get started with YugabyteDB in Rust.

The application requires the following:

  • Rust development environment. The sample application was created for Rust 1.58 but should work for earlier and later versions.

To build and run the application, do the following:

  1. Clone the sample application to your computer:

    git clone https://github.com/YugabyteDB-Samples/yugabyte-simple-rust-app.git && cd yugabyte-simple-rust-app

  2. Provide connection parameters.

    (You can skip this step and use the defaults if your cluster is running locally and listening on 127.0.0.1:5433.)

    The application needs to establish a connection to the YugabyteDB cluster. To do this:

    • Open the sample-app.rs file in the src directory.

    • Set the following configuration-related constants:

      • HOST - the host name of your YugabyteDB cluster. For local clusters, use the default (127.0.0.1). For YugabyteDB Managed, select your cluster on the Clusters page, and click Settings. The host is displayed under Connection Parameters.
      • PORT - the port number for the driver to use (the default YugabyteDB YSQL port is 5433).
      • DB_NAME - the name of the database you are connecting to (the default is yugabyte).
      • USER and PASSWORD - the username and password for the YugabyteDB database. For local clusters, use the defaults (yugabyte). For YugabyteDB Managed, use the credentials in the credentials file you downloaded.

    • YugabyteDB Managed requires SSL connections, so you need to set the following additional parameters:

      • SSL_MODE - the SSL mode to use; use SslMode::Require.
      • SSL_ROOT_CERT - the full path to the YugabyteDB Managed cluster CA certificate.

    • Save the file.

  3. Build and run the application.

    $ cargo run

The driver is included in the dependencies list of the Cargo.toml file and installed automatically the first time you run the application.

You should see output similar to the following:

>>>> Successfully connected to YugabyteDB!
>>>> Successfully created table DemoAccount.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 10000
name = John, age = 28, country = Canada, balance = 9000
>>>> Transferred 800 between accounts.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 9200
name = John, age = 28, country = Canada, balance = 9800

You have successfully executed a basic Rust application that works with YugabyteDB.

Explore the application logic

The PHP application connects to a YugabyteDB cluster using the php-pgsql driver and performs basic SQL operations. Use the application as a template to get started with YugabyteDB in PHP.

The application requires the following:

  • PHP runtime. The sample application was created using PHP 8.1 but should work with earlier and later versions. Homebrew users on macOS can install PHP using brew install php.
  • php-pgsql driver.
    • On macOS, Homebrew automatically installs the driver with brew install php.
    • Ubuntu users can install the driver using the sudo apt-get install php-pgsql command.
    • CentOS users can install the driver using the sudo yum install php-pgsql command.

To build and run the application, do the following:

  1. Clone the sample application to your computer:

    git clone https://github.com/YugabyteDB-Samples/yugabyte-simple-php-app.git && cd yugabyte-simple-php-app

  2. Provide connection parameters.

    (You can skip this step and use the defaults if your cluster is running locally and listening on 127.0.0.1:5433.)

    The application needs to establish a connection to the YugabyteDB cluster. To do this:

    • Open the sample-app.php file.

    • Set the following configuration-related constants:

      • HOST - the host name of your YugabyteDB cluster. For local clusters, use the default (127.0.0.1). For YugabyteDB Managed, select your cluster on the Clusters page, and click Settings. The host is displayed under Connection Parameters.
      • PORT - the port number for the driver to use (the default YugabyteDB YSQL port is 5433).
      • DB_NAME - the name of the database to connect to (the default is yugabyte).
      • USER and PASSWORD - the username and password for the YugabyteDB database. For local clusters, use the defaults (yugabyte). For YugabyteDB Managed, use the credentials in the credentials file you downloaded.

    • YugabyteDB Managed requires SSL connections, so you need to set the following additional parameters:

      • SSL_MODE - the SSL mode to use; use verify-full.
      • SSL_ROOT_CERT - the full path to the YugabyteDB Managed cluster CA certificate.

    • Save the file.

  3. Run the application.

    $ php sample-app.php

You should see output similar to the following:

>>>> Successfully connected to YugabyteDB!
>>>> Successfully created table DemoAccount.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 10000
name = John, age = 28, country = Canada, balance = 9000
>>>> Transferred 800 between accounts.
>>>> Selecting accounts:
name = Jessica, age = 28, country = USA, balance = 9200
name = John, age = 28, country = Canada, balance = 9800

You have successfully executed a basic PHP application that works with YugabyteDB.

Explore the application logic

Next step

Explore YugabyteDB