Cardano SDK for Elixir Language [Open source]

[GENERAL] Name and surname of main applicant

Piyush Thapa

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

Entity (Not Incorporated)

[GENERAL] Co-proposers and additional applicants

1. Aayush Thapa (https://github.com/aathapa)

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

10

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

No

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

With my solution we can leverage the power of Erlang OTP & Phoenix Channels to build Realtime Dapps. Also we can easily create Rest/Graphql Api for transaction. We can also auto generate Aiken Types.

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

No

[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?

Yes

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

The project will be open-sourced under MIT License

[SOLUTION] Please describe your proposed solution

My solution will allow building cardano Transaction with Elixir language. Which will bring more developer from elixir to Cardano.

Transaction built with elixir can leverage the power of Erlang virtual machine.

• Fault tolerance: Transaction built with my solution will have supervision tree, which will automatically restart into previous working state in case some error happened.

• Scalable Realtime System: My solution will allow developer to use phoenix Channels to update state for client. Phoenix Channels can handle 2 million+ concurrent connection in single machine.

https://www.phoenixframework.org/blog/the-road-to-2-million-websocket-connections

• Code Generator: On Top of current SDK we can build code generator which can read plutus blueprint file and auto generate boilerplate code for Apis & Offchain types.

• Test Coverage: SDK will provide support for both Emulator Test and Privnet Test support. You will be able to write test easily using Elixir builtin ExUnit.

https://hexdocs.pm/ex_unit/ExUnit.html

• Rich UX with LiveView: SDK can be used to support LiveView for Rich Realtime UX. LiveView allows writing Realtime web application all rendered from Backend(Elixir)

https://www.youtube.com/watch?v=MZvmYaFkNJI&ab_channel=ChrisMcCord

My Solution will bring one more way to write Cardano Offchain transaction in Backend.

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

With my SDK solution developer will be able to write offchain transaction in ELixir language and easily Generate Apis to Interact Cardano wallet Apis.

SDK will also provide Apis to generate Realtime message broadcast using phoenix Channels

SDK will open path for code generator where user can just run

mix sutra.gen.offchain /path/to/plutus.json and generate boilerplate code for Types, API endpoint even Basic UI is possible.

[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?

I have been working on cardano since 2020. And during that period made contribution to GeniusYield, Maestro Haskell SDK (https://www.gomaestro.org/) and IAGON (https://iagon.com/).

I also worked on Atlas PAB (https://atlas-app) while working at GeniusYield. (https://www.geniusyield.co/)

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

Design API Spec & Types

https://github.com/txbody-org/Sutra-cardano/milestone/1

Support Encoding / Decoding of Types to Plutus

https://github.com/txbody-org/Sutra-cardano/milestone/4

Support plug & play Providers (Maestro & Blockfrost) will be supported at the beginning. but anyone will be able to build own lib and plug into sdk.

Add Support To Plutus Blueprint

https://github.com/txbody-org/Sutra-cardano/milestone/5

Transaction Builder , Balancing & Coin Selection

https://github.com/txbody-org/Sutra-cardano/milestone/6

Testing Library (Emulator & Privnet)

https://github.com/txbody-org/Sutra-cardano/milestone/3

Prepare final Report & Video

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

• Piyush Thapa (Developer)
• Aayush Thapa (Developer)

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

We will need 10 month to finish this SDK for production ready, for 9,200 USD/Month at an average of 0.5 USD per ADA

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

Sdk will onboard Elixir developer to Cardano and also allow building Realtime Application for Cardano Dapps.

Please see "[IMPACT]" section