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beefy : yield : Add stargate support #308

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merged 1 commit into from
Oct 28, 2024

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@prevostc prevostc commented Oct 28, 2024

Title:

  • Pattern for PR title "protocol_name : protocol_category : other comments". Example - "uniswap: dex : tvl by user"

Checklist before requesting a review

  1. index.ts file

    • Contains function

       ```export const getUserTVLByBlock = async (blocks: BlockData) => {
           const { blockNumber, blockTimestamp } = blocks
               //    Retrieve data using block number and timestamp
               // YOUR LOGIC HERE
           
           return csvRows
      
       };
       ``` 
      
    • getUserTVLByBlock function takes input with this schema

        ``` 
            interface BlockData {
                blockNumber: number;
                blockTimestamp: number;
            }
        ```
      
    • getUserTVLByBlock function returns output in this schema

            ```
            const csvRows: OutputDataSchemaRow[] = [];
      
            type OutputDataSchemaRow = {
                block_number: number;  //block_number which was given as input
                timestamp: number;     // block timestamp which was given an input, epoch format
                user_address: string;   // wallet address, all lowercase
                token_address: string;  // token address all lowercase
                token_balance: bigint;  // token balance, raw amount. Please dont divide by decimals
                token_symbol: string; //token symbol should be empty string if it is not available
                usd_price: number; //assign 0 if not available
            };
            ```
      
    • contains function

        ```
            const readBlocksFromCSV = async (filePath: string): Promise<BlockData[]> => {
            const blocks: BlockData[] = [];
      
            await new Promise<void>((resolve, reject) => {
                fs.createReadStream(filePath)
                .pipe(csv()) // Specify the separator as '\t' for TSV files
                .on('data', (row) => {
                    const blockNumber = parseInt(row.number, 10);
                    const blockTimestamp = parseInt(row.timestamp, 10);
                    if (!isNaN(blockNumber) && blockTimestamp) {
                    blocks.push({ blockNumber: blockNumber, blockTimestamp });
                    }
                })
                .on('end', () => {
                    resolve();
                })
                .on('error', (err) => {
                    reject(err);
                });
            });
      
            return blocks;
            };
      
        ```
      
    • has this code

        ```
        readBlocksFromCSV('hourly_blocks.csv').then(async (blocks: any[]) => {
        console.log(blocks);
        const allCsvRows: any[] = []; 
      
        for (const block of blocks) {
            try {
                const result = await getUserTVLByBlock(block);
                allCsvRows.push(...result);
            } catch (error) {
                console.error(`An error occurred for block ${block}:`, error);
            }
        }
        await new Promise((resolve, reject) => {
            const ws = fs.createWriteStream(`outputData.csv`, { flags: 'w' });
            write(allCsvRows, { headers: true })
                .pipe(ws)
                .on("finish", () => {
                console.log(`CSV file has been written.`);
                resolve;
                });
        });
      
        }).catch((err) => {
        console.error('Error reading CSV file:', err);
        });
        ```
      
    • Your code is handling Pagination to make sure all data for a given block is returned

  2. Output data

    • Created a folder test on the same level as src and put sample outputData.csv with 15-20 records generated by your code
    • Data is returned for underlying tokens only. Not for special tokens (lp/veTokens etc)
    • Follows the exact sequence mentioned in OutputDataSchemaRow . This is needed as we want same column ordering in output csv
    • Value of each field is :
      • block_number is same as input block number. This signifies TVL is as of this block_number.
      • timestamp is same as input timestamp. This signifies TVL is as of this timestamp. It is in epoch format.
      • user_address is in lowercase
      • token_address is in lowercase
      • token_balance is in raw amount. Please dont divide by decimals.
      • token_symbol value if present, empty string if value is not available.
      • usd_price if value is available, 0 if value is not available.

@prevostc prevostc changed the title Add stargate support beefy : yield : Add stargate support Oct 28, 2024
@0xroll 0xroll merged commit 062790f into delta-hq:main Oct 28, 2024
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2 participants