[Feature] Add pool share/invite link feature

[grantfox-oss]

Getting Started

1. Fork the repository: https://github.com/JointSave-org/Joint_Save
2. Clone your fork:

   git clone https://github.com/<your-username>/Joint_Save.git
   cd Joint_Save

3. Create a new branch:

   git checkout -b feat/pool-invite-link

---

Overview

There is no way to invite someone to join a pool by sharing a link, which is a prerequisite for Phase 3 social onboarding.

Requirements

Share Link Format

https://joint-save.vercel.app/join/<contract_address>

New Page: /join/[contractId]/page.tsx

• Fetch pool details from Supabase + on-chain
• Show: pool name, type, member count, deposit requirements, creator address
• CTAs: "Connect Wallet to Request Join" or "Request to Join"

Share Button in Group Detail

• "Share Invite Link" button in group-details.tsx for pool creators
• Copies link to clipboard, shows "Link copied!" toast

join_requests Supabase Table

CREATE TABLE join_requests (
  id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
  pool_id UUID REFERENCES pools(id),
  requester_address TEXT NOT NULL,
  status TEXT DEFAULT 'pending',
  created_at TIMESTAMP DEFAULT NOW()
);

Acceptance Criteria

• /join/<contractId> renders pool info correctly
• "Request to Join" saves to Supabase
• Share button copies correct URL with toast
• Invalid contract IDs handled gracefully (404 state)
• Mobile-responsive

[clintjeff2]

Hello, I have 6 years of experience working on tasks like this and handling similar challenges across backend, frontend, and smart-contract development. I have carefully read and fully understood the task requirements, and I am confident I can deliver a clean, efficient, and well-tested solution promptly. I always ensure high-quality implementation, maintainability, and adherence to best practices.

Pull request in 10 hours

[Georgebingi]

Hi I'm a full stack developer I'll like to work on this issue because It picks my interest and Ive got experience with similar projects I'll have it solved in 24 hours or less

[Clement-coder]

Hi,

I'm a full-stack software and blockchain engineer with experience delivering production-grade solutions across frontend, backend, infrastructure, analytics, and blockchain systems.

I'd like to take ownership of this issue. I've reviewed the requirements and have a clear approach for implementing a robust, scalable, and maintainable solution that satisfies all acceptance criteria. I'll ensure the implementation follows project conventions, includes comprehensive testing, and is properly documented.

I can start immediately and will provide consistent updates throughout development. Looking forward to contributing to the project.

[Clement-coder]

Hi,

I'm a full-stack software and blockchain engineer with experience delivering production-grade solutions across frontend, backend, infrastructure, analytics, and blockchain systems.

I'd like to take ownership of this issue. I've reviewed the requirements and have a clear approach for implementing a robust, scalable, and maintainable solution that satisfies all acceptance criteria. I'll ensure the implementation follows project conventions, includes comprehensive testing, and is properly documented.

I can start immediately and will provide consistent updates throughout development. Looking forward to contributing to the project.

[retkatmun]

Hi, I'm a frontend developer with experience in HTML, CSS, Tailwind CSS, Vanilla JavaScript, and Python.

I have built and deployed responsive web applications and I'm comfortable working with Git and GitHub workflows. Based on the issue description, I believe I can complete this task effectively and follow the project's coding standards.

I'm eager to contribute to the project, improve my open-source experience, and deliver a quality solution within the expected timeframe.

Thank you for considering my application.

[Swayymalcolm99]

Hi maintainer! I have experience building share and invite link features, including unique link generation, copy-to-clipboard, native share sheet integration, and link-based join flows with proper validation and expiry handling.

[grantfox-oss]

🦊 GrantFox — @Swayymalcolm99 has been assigned to this issue as part of the Official Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #17)
2. Your PR will be reviewed by the JointSave-org maintainers

Good luck! Track your progress on GrantFox.