XRAY/Graph Price API — DEXs Prices & Volumes Tracking

[GENERAL] Name and surname of main applicant

Nick Tabolich

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

Entity (Not Incorporated)

[GENERAL] Requested funds in ada

25000

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

3

[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)

Develop an application for parsing prices and trading volumes built on Ogmios and wrapped in docker

[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

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

[SOLUTION] Please describe your proposed solution

The application will be split into two Docker containers: extractor and server. The database will be TimescaleDB for convenient time-series data aggregation. Extractor will work in conjunction with Ogmios and parse data, Server will output this data (with OpenAPI schema description).

The product is partially finished. Read more: https://github.com/xray-network/xray-graph-pricing

Orders endpoint: https://graph.xray.app/output/pricing/mainnet/api/v1/orders

We have already developed a similar XRAY/Graph Nftcdn API application and cardano-nftdcn-client for it (see our GitHub). 

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

Many developers for Cardano will have access to prices and trading volumes API of popular DEXs (with schema description in OpenAPI format).

[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: 1 month

Key results: Parsing "minswap", "minswap_stable", "wingriders", "sundaeswap", "vyfinance", "muesliswap" DEXs for orders, cancelations, batch processings

Time required: 1 month

Key results: Aggregation data, OpenAPI specs, TS client

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

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 ($) = $12,000

TOTAL ($0.45/ADA) = ~25,000 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