Celo Assessment

This API accepting a 40 character hexadecimal string as a public address, Celo network type and fiat currency as query parameters. It retrives token transfer information for Celo Punks, Moo Punks and Celo Apes nfts corresponding to the address.

Sample Request & Response

The query param migth look like this-

?address=0x45aae76094ac2579123f8f3d2d4315842e77b21c (require)
?network=main (Supported value: main/alfajores) (Optional Param)
?currency=usd (Supported value usd, brl(brazilian real) and euro) (Optional Param)

The response will look like this-

{
    "message": "Successfully fetch Information from Celo Punks, Celo Apes, Moo Punks NFT",
    "result": {
        "tokenTransactionInfo": [
            {
                "nftName": "Celo Punks",
                "tokenName": "Celo native asset",
                "tokenTransferred": "CELO",
                "amount": 25,
                "marketValue": 97.75,
                "date": "2022-01-13"
            },
            {
                "nftName": "Celo Punks",
                "tokenName": "Celo native asset",
                "tokenTransferred": "CELO",
                "amount": 11,
                "marketValue": 43.010000000000005,
                "date": "2022-01-13"
            },
            {
                "nftName": "Celo Apes",
                "tokenName": "Celo native asset",
                "tokenTransferred": "CELO",
                "amount": 9,
                "marketValue": 35.19,
                "date": "2021-11-04"
            },
            {
                "nftName": "Celo Punks",
                "tokenName": "Celo native asset",
                "tokenTransferred": "CELO",
                "amount": 12.4,
                "marketValue": 48.484,
                "date": "2022-01-13"
            },
            {
                "nftName": "Celo Punks",
                "tokenName": "Celo native asset",
                "tokenTransferred": "CELO",
                "amount": 12.625,
                "marketValue": 49.36375,
                "date": "2022-01-13"
            },
            {
                "nftName": "Moo Punks",
                "tokenName": "Celo native asset",
                "tokenTransferred": "CELO",
                "amount": 14,
                "marketValue": 54.74,
                "date": "2021-11-14"
            },
            {
                "nftName": "Celo Punks",
                "tokenName": "Celo native asset",
                "tokenTransferred": "CELO",
                "amount": 20.2,
                "marketValue": 78.982,
                "date": "2022-01-12"
            },
            {
                "nftName": "Celo Punks",
                "tokenName": "Celo native asset",
                "tokenTransferred": "CELO",
                "amount": 7.920792079207921,
                "marketValue": 30.97029702970297,
                "date": "2022-01-11"
            }
        ]
    },
    "status": 1
}

Additional Notes

• Query param network value only supports 'main' and 'alfajores'.
• Query param currency value only supports 'usd', 'brl' and 'euro'
• Query param address is require to call the api, network and currency param are optional.

Build Instructions

• Clone the git repo by running the following command in your terminal -

git clone https://github.com/mahabubAlahi/celo-assessment.git

• Run the following command to install the dependencies -

npm install

• Now checkout to the dev branch by the following command-

git checkout dev

because I intentionally added .env file in the dev branch for easier local testing. For master branch, create your own .env from .env.example file

• Run the project -

npm start

• This the GET API and the URL for sending the request-

http://localhost:[Port]/api/celo-trans-info?address={address}&network={network}&currency={currency}

Deployment

The project is deployed in Heroku Server. Here is the Deployed API Url -

https://celo-assessment.herokuapp.com/api/celo-trans-info?address={address}&network={network}&currency={currency}