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Example code of arweave/arweave-sdk

Informations about the package arweave-sdk

Arweave PHP SDK

This package allows us to interact with the Arweave network, we can use it to read and write transactions and data to the network.

Installation

We strongly recommend using composer for installation.

composer require arweave/arweave-sdk

Or add the following to your project composer.json file.

Quick Examples

Sending data to the network

Getting data from the network

Usage

Instantiation

Start by creating a Arweave object, this is the primary SDK class your application should use, it contains the public methods for creating, sending and getting transactions.

Provide any valid Arweave node hostname or IP address

Getting a Transaction

Once we have our Arweave object we can now get transactions from the network using a valid transaction ID.

For example:

The above will return the following Transaction object:

Getting data from a Transaction

There are two methods for getting data from a transaction, we can either:

This method returns the original and decoded data from a transaction. This is the simplest method and probably the one you'll need most often.

Alternatively, if we need the encoded data or need other transaction attributes we can do the following:

ArQL

Loading a Wallet

To load a wallet you need a Key file. Arweave uses JSON Web Keys (JWK) as the key file format, a JWK is simply a JSON representation of a public/private key pair and they look something like this:

We first need to decode our JWK file to a PHP array, then we can simply pass that array into a new Wallet object.

You should treat your JWK as you would treat an API key or a password. You should never expose them or place them in any publicly accessible location and never commit them to any version control system, doing so will compromise your wallet and its contents.

This is just one suggested method of storing your JWK but there's no requirement that you store in as a JSON file, you could also store it in an environment variable, a database, a PHP file, or anywhere else. As long as it ends up as a PHP array it should work just fine.

Creating a Transaction

Transactions need to be signed for them to be accepted by the network, so this step requires a wallet.

All versions of arweave-sdk with dependencies

PHP Build Version
Package Version
Requires phpseclib/phpseclib Version ^2.0
php Version ^7.0
ext-curl Version *
ext-mbstring Version *
ext-gmp Version *
web-token/jwt-framework Version ^1.3
web-token/jwt-core Version ^1.3
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