New Tool: Build a Flow SDK - Milestone 1

[nduplessis]

New Tool: Build a Flow SDK - Milestone 1

Description

This PR is for issue #20.

This version of the Ruby SDK provides gRPC communication and a number of the SDK user stories, including script execution and single sig transaction signing and sending.

Usage documentation is available at https://github.com/glucode/flow_client

Features:

Blocks:

• retrieve a block by ID
• retrieve a block by height
• retrieve the latest block

Collections:

• retrieve a collection by ID

Events:

• retrieve events by name in the block height range

Scripts:

• submit a script and parse the response
• submit a script with arguments and parse the response

Accounts:

• retrieve an account by address
• create a new account
• deploy a new contract to the account
• remove a contract from the account
• update an existing contract on the account

Transactions:

• retrieve a transaction by ID
• sign a transaction (single payer, proposer, authorizer or combination of multiple)
• submit a signed transaction
• sign a transaction with arguments and submit it

Milestones

• 1: Implement the gRPC layer of the SDK, allowing communication with the Flow blockchain
• 2: Accomplish transaction signing in a way that handles the complex algorithm / hashing / encoding for the user.
• 3: Meet and exceed Flow SDK guidelines
• 4: Complete documentation and common usage examples are available

[sideninja]

LGTM 🚀 good work. Just a flag before you start documentation I will provide some guidance on that part so it will be easier for you to accomplish that.