This project implements a crowdfunding platform that allows users to create fundraising campaigns and to participate as donors in them. The smart contract leverages the Moonbeam technology, the project uses Chainlink Price Feed contract for price conversions and OpenZeppelin Defender to automate the execution of our smart contract.
The project was inspired by the inequity and difficulties faced by marginalized communities in accessing financing and resources for their social projects. The lack of opportunities limited their ability to generate positive impact and improve their living conditions. This reality sparked the desire to build a crowdfunding platform that could eliminate barriers and connect social entrepreneurs with committed donors globally. The inspiration came from the belief in the power of collective support and solidarity to create significant change in the most vulnerable communities. The project was developed with the purpose of providing equal opportunities and promoting collaboration to drive socially positive and sustainable projects.
Our project is a crowdfunding platform that connects social entrepreneurs with committed donors. We facilitate fundraising for social projects, allowing people to present their ideas and obtain the necessary financial support to make them a reality. Our platform provides a transparent, secure, and efficient form of financing, and aims to promote active community participation in decision-making. By bringing project creators and donors together, we drive the generation of innovative and sustainable solutions for social challenges, thereby improving the quality of life in communities and generating a positive impact on society.
The project was built by defining the project's vision, mission, and values, establishing the objectives and goals we wanted to achieve. Then, we conducted thorough research on crowdfunding and the challenges it faced, identifying opportunities for improvement.
Based on this research, we designed the crowdfunding platform, focusing on the Moonbeam blockchain to ensure transparency and security in transactions. We carry out the technical implementation of the platform, ensuring that it met the required standards of quality and functionality.
Our project is based on the implementation of a crowdfunding platform that addresses the main issues associated with traditional crowdfunding. We believe in the importance of providing access to funding for social projects and fostering community participation in decision-making.
In our approach, we strive to overcome geographical barriers that limit project reach by allowing initiatives to reach a global audience. We want to provide social projects with the opportunity to obtain funds internationally and maximize their fundraising potential.
Transparency is a fundamental value for us. Through the use of Moonbeam technology, we aim to provide a high level of transparency and traceability in the fundraising process. We want donors to easily verify how funds are being utilized and if campaign objectives are being met.
Furthermore, we believe in active community participation. We want to give donors a voice and a vote in decisions related to funded projects. We aim to foster community connection and involvement to build a platform that reflects the needs and desires of its users.
Protection against scams and fraudulent projects is a priority for us. We will implement robust security and verification measures to ensure the authenticity of projects presented on our platform. We want to give donors the confidence that their contributions will be used appropriately and for the intended purposes.
In summary, we are committed to overcoming the challenges associated with traditional crowdfunding and providing a more accessible, transparent, and participatory platform. We are excited to drive efficient fundraising and support social projects that seek to generate a positive impact on society.
Main problems of traditional crowdfunding:
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Geographical barriers: Traditional crowdfunding often limits itself to a specific region or country, making it difficult for projects to reach a global audience and limiting their fundraising potential.
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Lack of transparency: Traditional funding processes may lack transparency regarding how raised funds are utilized. Donors may have difficulties in tracking and verifying the use of funds by project creators.
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Limited community participation: In many cases, donors in traditional crowdfunding have no voice or vote in decisions related to funded projects. Community participation is limited, which can result in a lack of connection and involvement.
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Insufficient protection against scams: Risks of scams and fraudulent projects exist in traditional crowdfunding. Donors can become victims of scammers who present false or deceptive projects and disappear once they have collected the funds.
SolidFund would address the following points:
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Access to funding: It would provide social projects with an opportunity to obtain funds to carry out their initiatives. Many social projects lack the necessary financial resources, and this platform would offer them a way to access the necessary support.
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Transparency: By utilizing Moonbeam technology, the platform could provide a level of transparency and traceability in the fundraising process. Participants would be able to easily verify how funds are being utilized and if campaign goals are being achieved.
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Goal validation: The platform would allow campaign goals to be validated by participants and validators. This would ensure that funded projects have clear objectives and that funds are effectively used to achieve those goals.
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Community participation: By enabling users to vote for campaigns they believe should be funded, the platform would encourage community participation in decision-making and project selection. This creates a sense of community and empowerment among participants.
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Fund security: The platform could guarantee the security of funds raised. Participants can have confidence that their contributions are protected and will be used appropriately.
In summary, the crowdfunding platform would address issues related to access to funding, transparency, goal validation, community participation, and fund security in the realm of social projects.
The Solid Fund smart contract enables users to create fundraising campaigns for social projects with specified goals and durations. Participants can pledge funds to these campaigns, either in Glimmer (GLMR) or a specified ERC20 stable token (while the smart contracts are deployed on Moonbase Alpha "DEV" is the token used). The progress of each campaign is tracked, and when a campaign meets its goals, the creator can claim the funds and provide proof of achieving the campaign's objective. Validators can review the proof and validate or invalidate the goal accordingly.
During the construction of the project, we faced several significant challenges. Some of the notable challenges included
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Fund security: Ensuring the security of donor funds and the authenticity of the presented projects was a major challenge. We had to implement rigorous verification and tracking measures to protect donors from scams and ensure that the funds were appropriately allocated to the funded projects.
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Project selection and evaluation: Ensuring the quality and impact of the projects presented on the platform was a significant challenge. We had to research organizations in the field of social projects to strengthen our selection and evaluation processes, ensuring that we supported only viable projects with a positive impact on society.
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Automation: we have a method that updates all the campaigns' status. We need to execute it daily so that we need a way to automate it. We realized that ChainLink Automation isn't compatible with Moonbean/Moonbase so we had to look for another tool. Alberto Viera, who is working on this hackathon, suggested us to use OpenZepplin Defender and we made it.
- Transparency and trust: We have established high standards of transparency in fund management and communication with donors.
- Technological innovation: We have incorporated advanced technologies into our platform, to enhance security, transparency, and efficiency in the funding process.
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Leandro Palazzolo - lea.palazzolo@gmail.com - https://github.com/leapalazzolo
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Matias Guagliardo - matias.guagliardo@gmail.com - https://github.com/Mattteus1
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Gustavo Matta - linkzelda2016o@gmail.com - https://github.com/BetX19
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Robert Medina - csoperativo@gmail.com - https://github.com/shaggyt85
3rt Quarter 2023:
- Launch of the crowdfunding platform and its promotion at a national and international level.
- Implementation of security and verification measures to ensure the authenticity of projects and protect donors from scams.
- Establishment of transparent processes for fund management and monitoring the achievement of funded project objectives.
- Development of an effective communication strategy to engage the community and promote active participation in decision-making.
- Evaluation and analysis of the initial results of the platform, identifying areas for improvement and growth opportunities.
- Organization of events and activities to raise awareness about the project and garner support from donors and sponsors.
4th Quarter 2023:
- Geographic expansion of the platform, aiming to reach a global audience and overcome traditional geographical barriers.
- Implementation of feedback and evaluation mechanisms by donors and beneficiaries of funded projects.
- Continuous improvement of the platform, based on user feedback and suggestions.
- Exploration of new integrations and technologies to expand functionalities and enhance user experience.
- Establishment of strategic partnerships with financial institutions and government entities to strengthen access to funding and additional resources.
- Evaluation of the social impact generated by projects funded through the platform and dissemination of the results.
1st Quarter 2024:
- Analysis and improvement of the crowdfunding platform based on the results obtained and user feedback.
- Implementation of analysis and tracking tools to measure the social impact of funded projects.
- Collaboration with organizations and experts in the field of social projects to strengthen the selection and evaluation of projects presented on the platform.
- Development of training and mentoring programs for project creators, providing them with resources and knowledge to optimize their campaigns.
- Research and evaluation of new financing opportunities, such as partnerships with impact investors, grant programs, and specific funds.
- Expansion of communication channels and promotion of the project, including participation in events and the creation of relevant content to raise awareness and attract new donors.
Users can create fundraising campaigns by specifying the number of goals, start and end dates.
The creator of a campaign can cancel it if it hasn't started yet.
Once a campaign is created, the creator can add multiple goals with corresponding funding targets.
Users can pledge funds to ongoing campaigns by contributing Glimmer (GLMR) or a specified ERC20 stable token (while the smart contracts are deployed on Moonbase Alpha "DEV" is the token used).
Users can retract their pledge if the campaign is in an invalid or finished state.
The contract automatically updates the status of campaigns based on the start and end dates, goal validations, and funding achievements by using OpenZepplin Defender.
Campaign creators can claim funds when they meet the goals by providing proof of achievement.
Campaign creators can attach proof of goal achievement for validation by validators.
Validators can review the attached proof and validate or invalidate the goal accordingly.
Users with the voter role can vote for campaigns they believe should be funded.
The smart contract includes the following actors/roles:
The contract deployer who has the ability to pause and unpause the contract and grant/revoke voter and validator roles. This role can execute every method.
Users with this role can vote for campaigns they believe should be funded.
Users with this role can review and validate or invalidate the attached proof for campaign goals.
The user who creates a campaign. They have additional permissions related to campaign management.
The user who donates to a campaign.
We're using OpenZeppelin Defender (Relayer and Autotask) to automate the execution of the method "updateCampaigns".
The Solid Fund smart contract relies on the following external contracts and libraries:
Provides basic access control and ownership functionality.
Allows pausing and unpausing the contract.
Enables managing role-based access control.
AggregatorV3Interface: Provides the interface for accessing price feed data.
An interface for interacting with ERC20 tokens.
The user interacts with the contract by using a front-end. Optionally, they can use the verified contract directly. The campaign's goals are obtained from an aggregator that is a service that gets some products from validated markets. We're using OpenZeppelin Defender with an autotask executed by a relayer (the autotask code is here)
- Solidity: Smart Contract
- Hardhat: Deploy and verification of the contracts
- ChainLink: data feed
- OpenZeppelin: contracts and Defender (Autotask and Relayer)
- React: front-end
- Third-web: web framework
- NodeJs: mock APIs
- Python: aggregator API
- GitHub Actions: CI pipeline
- Docker and Docker Compose: local development
The Solid Fund smart contract allows users to create crowdfunding campaigns, pledge Glimmer (GLMR) or ERC-20 tokens to campaigns, vote for campaigns, add campaign goals, and claim goals based on the campaign's success. The contract includes role-based access control and pause functionality to ensure secure and controlled operations. All the metadata related to the campaign is saved in a different service called "metadata API".
Finally, the solution uses ChainLink data price feeds to convert the Glimmer (GLMR) or the specified ERC20 token price to USD when the creator wants to claim a goal and also OpenZeppelin Defender to automate the execution of the contract so that the campaigns' status are updated.
create(uint256 _goals, uint256 _startAt, uint256 _endAt): Creates a new crowdfunding campaign with the specified goals, start time, and end time.cancel(uint256 _id): Cancels a campaign that has been created but not yet started.addGoals(uint256 _id, NewGoal[] calldata _goals): Adds campaign goals to a created campaign.getCampaigns(): Retrieves an array of all campaigns.getGoals(uint256 _id): Retrieves an array of goals for a specific campaign.claimGoal(uint256 _id, uint256 _goalId): Allows the campaign owner to claim a specific goal if the required funds or tokens have been raised.attachProof(uint256 _id, uint256 _goal_id, string calldata _goal_proof): Allows the campaign owner to attach proof of achieving a goal.
pledge(uint256 _id, uint256 _amount): Allows users to pledge Glimmer (GLMR) or ERC-20 tokens to a started campaign.unpledge(uint256 _id): Allows users to unpledge their Glimmer (GLMR) or ERC-20 tokens from a campaign that is either finished or invalid.
validateProof(uint256 _id, uint256 _goal_id, GoalStatus _status): Allows a validator to validate or invalidate the proof attached to a goal.
voteCampaign(uint256 _id): Allows voters to vote for a campaign.
pause(): Pauses stakings and withdrawals in the contract.unpause(): Unpauses stakings and withdrawals in the contract.
grantVoterRole(address _address): Grants the voter role to the specified address.revokeVoterRole(address _address): Revokes the voter role from the specified address.grantValidatorRole(address _address): Grants the validator role to the specified address.revokeValidatorRole(address _address): Revokes the validator role from the specified address.
VOTER_ROLE: Role assigned to addresses that are allowed to vote for campaigns.VALIDATOR_ROLE: Role assigned to addresses that are allowed to validate proofs.
The Solid Fund smart contract has the following dependencies:
- Chainlink Contracts: Provides the AggregatorV3Interface for price feed data.
- OpenZeppelin Contracts: Provides base contracts for Ownable, Pausable, and AccessControl functionalities.
The solution isn't placed in Moonbeam mainnet yet.
Currenly we're using Moonbase Alpha testnet:
- MockERC20 deployed to 0xF2e43E5e222E5f0B4584315637C569f66938835F
- Solid Fund deployed to 0xb390F2d000d6d5b6fAd0717Fad290B64DE8e613c
Solid Fund
npx hardhat verify --network moonbase --contract contracts/Crowdfund.sol:CrowdFund 0xb390F2d000d6d5b6fAd0717Fad290B64DE8e613c 0xF2e43E5e222E5f0B4584315637C569f66938835F 6048000 1 0x537879A0beA294c1ce04161Ae827919e92C23e92
MockERC20
npx hardhat verify --network moonbase --contract contracts/MockERC20.sol:MockERC20 0xF2e43E5e222E5f0B4584315637C569f66938835F
- Docker
- Docker compose
To run the project locally you should use Docker compose. Once installed, build and run the containers using the command:
docker-compose up
or
docker-compose up --build
if you want to rebuild the projects.
To watch the containers use the command
docker ps
This service collects the items and prices for verified markets. It should be available at localhost:5000/products. You can also get a specific product price using localhost:5000/products/id
It will run in the local blockchain in the container called blockchain. It should be available at 0.0.0.0:8545 (the chain id is 31337). Check the contract address in the output of the bootstrap container:
bootstrap | Crowdfund deployed to 0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512
This service will save the metadata for the campaign (name, description, etc). To create a new entry send a POST to localhost:4000/campaigns, a GET to localhost:4000/campaigns to get all the campaigns or localhost:4000/campaigns/<id> to get just one campaign. The body in the post can be any body because it's a mock API.
Thank you for considering contributing to the Solid Fund project! Contributions are highly encouraged and welcome. Here are a few ways you can contribute:
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Report issues: Help identify and report any bugs or issues you encounter while using the platform by opening an issue in the repository.
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Suggest improvements: If you have ideas for improving the project, feel free to open an issue and share your suggestions.
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Submit pull requests: If you'd like to contribute code changes or enhancements to the project, you can submit a pull request. Make sure to follow the project's guidelines and coding conventions.
Before contributing, please review the contribution guidelines for this project.
This project is licensed under the MIT License.