Rust

Contents

Install

The Rust SDK is available on crates.io and Rust SDK Github

Run the following Cargo command in your project directory: cargo add shadow-drive-sdk

Or add the following line to your Cargo.toml shadow-drive-sdk = "0.6.1"

You can find more examples on our Github

Example - Upload Multiple Files to ShdwDrive Using Rust

This Rust code example demonstrates how to upload multiple files to a ShdwDrive using the shadow_drive_rust library. It initializes a tracing subscriber, reads a keypair from a file, creates a ShdwDrive client, derives the storage account public key, reads files from a directory, creates a vector of ShadowFile structs for upload, and finally uploads the files to the ShdwDrive.

Methods

add_immutable_storage

Definition

Adds storage capacity to the specified immutable StorageAccount. This will fail if the StorageAccount is not immutable.

Parameters

  • storage_account_key - The public key of the immutable StorageAccount.

  • size - The additional amount of storage you want to add. E.g if you have an existing StorageAccount with 1MB of storage but you need 2MB total, size should equal 1MB. When specifying size, only KB, MB, and GB storage units are currently supported.

Example of add_immutable_storage

Response from add_immutable_storage

add_storage

Definition

Adds storage capacity to the specified StorageAccount.

Parameters

  • storage_account_key - The public key of the StorageAccount.

  • size - The additional amount of storage you want to add. E.g if you have an existing StorageAccount with 1MB of storage but you need 2MB total, size should equal 1MB. When specifying size, only KB, MB, and GB storage units are currently supported.

Example of add_storage

Response from add_storage

cancel_delete_storage_account

Definition

Unmarks a StorageAccount for deletion from the ShdwDrive. To prevent deletion, this method must be called before the end of the Solana epoch in which delete_storage_account is called.

Parameters

  • storage_account_key - The public key of the StorageAccount that you want to unmark for deletion.

Example of cancel_delete_storage_account

Response from cancel_delete_storage_account

claim_stake

Definition

Claims any available stake as a result of the reduce_storage command. After reducing storage amount, users must wait until the end of the epoch to successfully claim their stake.

Parameters

  • storage_account_key - The public key of the StorageAccount that you want to claim excess stake from.

Example of claim_stake

Response from claim_stake

create_storage_account

Definition

Creates a StorageAccount on the ShdwDrive. StorageAccounts can hold multiple files and are paid for using the SHDW token.

Parameters

  • name - The name of the StorageAccount. Does not need to be unique.

  • size - The amount of storage the StorageAccount should be initialized with. When specifying size, only KB, MB, and GB storage units are currently supported.

Example of create_storage_account

An example use case for this method can be found in the same github repository

Response from create_storage_account

delete_file

Definition

Marks a file for deletion from the ShdwDrive. Files marked for deletion are deleted at the end of each Solana epoch. Marking a file for deletion can be undone with cancel_delete_file, but this must be done before the end of the Solana epoch.

Parameters

  • storage_account_key - The public key of the StorageAccount that contains the file.

  • url - The ShdwDrive url of the file you want to mark for deletion.

Example of delete_file

An example use case for this method can be found in the same github repository

delete_storage_account

Definition

This function marks a StorageAccount for deletion from the ShdwDrive. If an account is marked for deletion, all files within the account will be deleted as well. Any stake remaining in the StorageAccount will be refunded to the creator. Accounts marked for deletion are deleted at the end of each Solana epoch.

Parameters

  • storage_account_key - The public key of the StorageAccount that you want to mark for deletion.

Response from delete_storage_account

  • This method returns success if it can successfully mark the account for deletion and refund any remaining stake in the account before the end of the current Solana epoch.

Example of delete_storage_account

An example use case for this method can be found in the same github repository on line 71.

edit_file

Definition

Replace an existing file on the ShdwDrive with the given updated file.

Parameters

  • storage_account_key - The public key of the StorageAccount that contains the file.

  • url - The ShdwDrive url of the file you want to replace.

  • data - The updated ShadowFile.

Example of edit_file

Response from edit_file

Examples found in repository

File: examples/end_to_end.rs, Line 53

get_object_data

Retrieve object data

get_storage_account

Definition

Returns the StorageAccount associated with the pubkey provided by a user.

Parameters

  • key - The public key of the StorageAccount.

Example of get_storage_account

Response for V1 StorageAccount from get_storage_account

Response for V2 StorageAccount from get_storage_account

get_storage_accounts

Definition

Returns all StorageAccounts associated with the public key provided by a user.

Parameters

  • owner - The public key that is the owner of all the returned StorageAccounts.

Example of get_storage_accounts

Response for V1 StorageAccount from get_storage_accounts

Response for V2 StorageAccount from get_storage_accounts

get_storage_account_size

Definition

This method is used to get the amount of storage currently used by a given storage account.

Parameters

  • storage_account_key - The public key of the StorageAccount that owns the files.

Example of get_storage_account_size

Response from get_storage_account_size

list_objects

Definition

Gets a list of all files associated with a StorageAccount. The output contains all of the file names as strings.

Parameters

  • storage_account_key - The public key of the StorageAccount that owns the files.

Example of list_objects

Response from list_objects

Note: The response is a vector containing all of the file names as strings.

make_storage_immutable

Definition

Permanently locks a StorageAccount and all contained files. After a StorageAccount has been locked, a user will no longer be able to delete/edit files, add/reduce storage amount, or delete the StorageAccount.

Parameters

  • storage_account_key - The public key of the StorageAccount that will be made immutable.

Example of make_storage_immutable

Response from make_storage_immutable

migrate

Definition

Migrates a v1 StorageAccount to v2. This requires two separate transactions to reuse the original pubkey. To minimize chance of failure, it is recommended to call this method with a commitment level of Finalized.

Parameters

  • storage_account_key - The public key of the StorageAccount to be migrated.

Example of migrate

Response from migrate

migrate_step_1

Definition

First transaction step that migrates a v1 StorageAccount to v2. Consists of copying the existing account’s data into an intermediate account, and deleting the v1 StorageAccount.

migrate_step_2

Definition

Second transaction step that migrates a v1 StorageAccount to v2. Consists of recreating the StorageAccount using the original pubkey, and deleting the intermediate account.

new

Definition

Creates a new ShadowDriveClient from the given Signer and URL.

Parameters

  • wallet - A Signer that for signs all transactions generated by the client. Typically this is a user’s keypair.

  • rpc_url - An HTTP URL of a Solana RPC provider. The underlying Solana RPC client is configured with 120s timeout and a commitment level of confirmed.

To customize RpcClient settings see new_with_rpc.

Example of new

Examples found in repository

examples/end_to_end.rs (line 19)

new_with_rpc

Definition

Creates a new ShadowDriveClient from the given Signer and RpcClient.

Parameters

  • wallet - A Signer that for signs all transactions generated by the client. Typically this is a user’s keypair.

  • rpc_client - A Solana RpcClient that handles sending transactions and reading accounts from the blockchain. Providing the RpcClient allows customization of timeout and commitment level.

Example of new_with_rpc

redeem_rent

Definition

Reclaims the Solana rent from any on-chain file accounts. Older versions of the ShdwDrive used to create accounts for uploaded files.

Parameters

  • storage_account_key - The public key of the StorageAccount that contained the deleted file.

  • file_account_key - The public key of the File account to be closed.

Example of redeem_rent

Response from redeem_rent

reduce_storage

Definition

Reduces the amount of total storage available for the given StorageAccount.

Parameters

  • storage_account_key - The public key of the StorageAccount whose storage will be reduced.

  • size - The amount of storage you want to remove. E.g if you have an existing StorageAccount with 3MB of storage but you want 2MB total, size should equal 1MB. When specifying size, only KB, MB, and GB storage units are currently supported.

Example of reduce_storage

Response from reduce_storage

refresh_stake

Definition

This method is used to update your storage account's stake amount. It is required to call this method after calling the `topUp` method in order for your stage account to update properly.

Parameters

  • storage_account_key: PublicKey - Publickey of the Storage Account

Example of refresh_stake

Response from refresh_stake

store_files

Definition

Stores files in the specified StorageAccount.

Parameters

  • storage_account_key - The public key of the StorageAccount.

  • data - Vector of ShadowFile objects representing the files that will be stored.

Example of store_files

Response from store_files

top_up

Definition

This method is used to top up a storage account's $SHDW balance to cover any necessary fees, like mutable storage fees which are collected every epoch. It is necessary to call the `refresh_stake` method after this.

Parameters

  • key: PublicKey - Publickey of the Storage Account

  • amount: u64- Amount of $SHDW to transfer to the stake account

Example of top_up

Response from top_up

Example - ShdwDrive Client: Creating and Managing Storage Accounts using Rust

Example - Cancel Storage Account Deletion using rust

Example - Claim Stake using rust

Example - Uploading and Deleting Files with rust SDK

Example - Delete Storage Account using rust

Example - Tests

Example - Creating and Migrating a Storage Account using ShadowDriveClient in Rust

Example - Redeem Rent for Storage using Rust

Example - Uploading Multiple Files to a storage account in rust

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