Implement Subscription Service for Auto-Swap

[Abeeujah]

Overview

This service processes subscription events emitted when a user opts into the auto-swap feature. It records the user's preferences for swapping tokens automatically.

Payload

The service should handle incoming payloads with the following structure:

• wallet_address : The user's wallet address.
• to_token : The stable token they want to swap to.
• from_token (array of token_addresses): Tokens they want to swap from.
• percentage (array of numbers): Corresponding percentages for each from_token.

Functionality

1. Create Subscription:

   • Store the user's subscription in the swap_subscription table with:
     • wallet_address
     • to_token

2. Populate Token-Specific Data:

   • For each from_token, store the token and its swap percentage in the swap_subscription_from_token table.

Acceptance Criteria

• Subscriptions are saved correctly for each user in the database.
• from_token and percentage arrays align properly (e.g., 50% for STRK, 50% for another token).

Examples

Input Payload:

{
  "wallet_address": "0xUserAddress",
  "to_token": "USDT",
  "from_token": ["STRK", "DAI"],
  "percentage": [50, 50]
}

Database Updates:

• swap_subscription:
  • wallet_address: 0xUserAddress
  • to_token: USDT
• swap_subscription_from_token:
  • from_token: STRK, percentage: 50
  • from_token: BROTHER, percentage: 50

Dependencies

• Subscription event from the smart contract.
• Database tables: swap_subscription, swap_subscription_from_token.

[0xdevcollins]

I'd like to take this issue.

My Background I am a Full Stack Blockchain Developer with proficiency in Solidity/Rust, Next.js, TypeScript, React, and Node.js. I've demonstrated my ability to adjust to a variety of requirements, perform well under pressure, and reliably produce user-centric blockchain solutions with 46 significant contributions spread over 12 OnlyDust projects.

[GideonBature]

Can I take care of this issue?

my name is Gideon Bature, a Software Engineer with experience working on Rust projects. If assigned this task, will send my first PR within 48 hours.

Thank you!

[OWK50GA]

Is this issue still available? I'm a Rust developer, and I will like this

[mimisavage]

Can I be assigned to this?

[CEOliam]

Is it okay if I take this?

[Michaelkingsdev]

I'd love to work on this!

[Benjtalkshow]

Can I tackle this one?

[vestor-dev]

Can I start working on this? @Abeeujah please kindly assign

[Gerson2102]

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Hey! I'm Gerson. 👋

Member of Dojo Coding. I have contributed before to other projects like:

• kakarot-rpc
• kakarot-ssj
• ef-tests
• Raito
• Starknet-Phone
• Madara
• stark-cairo-nodes

Can I work on this issue?

Check my OnlyDust profile, I've contributed to many projects: Profile

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Plan to Solve the Issue:

1. Study the codebase to understand the current structure and functionality.
2. Understand the problem that needs to be solved by thoroughly reading the issue details.
3. Leverage all provided resources within the issue to get a better grasp of the task at hand.
4. If I encounter roadblocks, I will ask questions ASAP in the Telegram group to move forward effectively.
5. I will open a PR and wait for ur feedback

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