Cloudflare Workers Cardano SDK

[GENERAL] Name and surname of main applicant

[GENERAL] Are you delivering this project as an individual or as an entity (whether formally incorporated or not)

[GENERAL] Please specify how many months you expect your project to last (from 2-12 months)

[GENERAL] Please indicate if your proposal has been auto-translated into English from another language

[GENERAL] Summarize your solution to the problem (200-character limit including spaces)

Develop a framework based on Hono and a modified Cardano Multilplatform Lib (to run inside Cloudflare Edge environment). Add a set of examples (starter kits) based on this framework

[GENERAL] Does your project have any dependencies on other organizations, technical or otherwise?

[GENERAL] If YES, please describe what the dependency is and why you believe it is essential for your project’s delivery. If NO, please write “No dependencies.”

No dependencies

[GENERAL] Will your project’s output/s be fully open source?

[GENERAL] Please provide here more information on the open source status of your project outputs

MIT License (as well as other open source XRAY/Network products, see GitHub repositories)

[SOLUTION] Please describe your proposed solution

We will build a framework (TypeScript) to work in the Cloudflare Edge environment, namely Cloudflare Workers. This is a Node.js environment with instant deployment of instances across the globe, which allows us to use serverless code. The project will be completely open source.

The framework will utilize technologies and libraries such as:

• Cloudflare Workers, serverless code instantly across the globe
• Cloudflare KV, global, low-latency, key-value data storage
• Cloudflare D1, serverless SQL databases
• Hono, router for any JavaScript runtime
• Zod OpenAPI Hono, OpenAPI schemas for Hono
• Drizzle ORM, TypeScript ORM for Cloudflare D1
• @dcSpark/cardano-multiplatform-lib, serialization & deserialization of core cardano data structures
• @emurgo/message-signing-lib, CIP-0008 message signing

[IMPACT] Please define the positive impact your project will have on the wider Cardano community

The Cardano ecosystem should be developer friendly, and the first steps in development should be very simple and straightforward. This framework will allow you to deploy frontend/backend applications literally instantly, without tedious server configuration. 

Combined with XRAY/Graph (data provider) and CardanoWeb3js (Lucid analog developed by XRAY/Network) it will become a universal solution for creating various applications and APIs.

[CAPABILITY & FEASIBILITY] What is your capability to deliver your project with high levels of trust and accountability? How do you intend to validate if your approach is feasible?

We've done quite a bit of product development and understand how and what goes on in Cardano.

• CardanoWeb3js (Cardano JS SDK)
• RayWallet (lightweight wallet)
• RayStake (+ first Cardano ISPO)
• XRAY/Graph Nftcdn (metadata explorer, image CDN, IPFS proxy)
• XRAY/Graph Output (Cloudflare Workers load balancer)
• XRAY/Graph Turbo TX Send (Cloudflare Workers multiple node tx submission)
• Koios Tiny (dockered Koios)
• cardano-koios-client
• cardano-nftcdn-client
• And so on, many projects are in the pipeline 

[PROJECT MILESTONES] What are the key milestones you need to achieve in order to complete your project successfully?

Time required: 2 months

Key results: Running CML and MSL in Cloudflare Edge, developing a project skeleton

Time required: 1 month

Key results: Fully working framework, examples of working applications

Time required: 1 month

Key results: Documentation, proposal closing

[RESOURCES] Who is in the project team and what are their roles?

Nick Tabolich - Core Developer

Participated in the development of XRAY/Network for over two years, has experience with Cardano blockchain for all tasks. Possesses the necessary management skills to organize work and hire developers

[BUDGET & COSTS] Please provide a cost breakdown of the proposed work and resources

Milestone 1:

$50/hr x 2 months x 80 hr/month = $8,000

Milestone 2:

$50/hr x 1 month x 80 hr/month = $4,000

Final Milestone:

$50/hr x 1 month x 80 hr/month = $4,000

TOTAL ($) = $16,000

TOTAL ($0.45/ADA) = ~35,000 ADA

[VALUE FOR MONEY] How does the cost of the project represent value for money for the Cardano ecosystem?

Blockchain developer hourly rates are charged at an international industry standard of ~$50 an hour. Reference: https://survey.stackoverflow.co/2023/#work-salary