What is Crema-SDK-V2?

CLMM means concentrated liquidity market maker, it's crema sdk for new swap protocal. Crema is a open-source concentrated liquidity market maker on the Solana BlockChain . The new version of crema increases the capital efficiency of decentralized exchanges.

This repository contains the typescript sdk(@cremafinance/crema-sdk-v2), which help you interact with a deployed program.

How to use Crema-SDK-V2?

Installation

npm add @cremafinance/crema-sdk-v2

Test

You can use npm test to test crema instructions in ./test/instructions.

Use case:

We will show you the pseudocode example, specific method of application you can read ./integration/jupiter/example or ./tests/instructions/xx.test.ts

Pseudocode Example

    // swap quote structa
    // import type { SwapQuote, SwapQuoteParam } from "@cremafinance/crema-sdk-v2/quote/public/swap";
    type SwapQuote = {
        estimatedAmountIn: u64;
        estimatedAmountOut: u64;
        estimatedEndSqrtPrice: BN;
        estimatedFeeAmount: u64;
        isExceed: boolean;
        aToB: boolean;
        byAmountIn: boolean;
        amount: BN;
    };

    const ix = sdk.ctx.program.instruction.swapWithPartner(
        aToB,           // weather change token_a for token_b
        byAmountIn,     // weather amount of fixed input
        amount,         // the amount of token
        amountLimit,    // calculate by simulate swap quote result and slippage
        sqrtPriceLimit, // max or min sqrt price limit(depend on aToB)
        {
          accounts: {
            clmmConfig,
            clmmpool,
            tokenA,
            tokenB,
            accountA,
            accountB,
            tokenAVault,
            tokenBVault,
            tickArrayMap, // get this account by getTickArrayMapPDA(...).publicKey
            owner,
            partner,      // partner of integration
            partnerAtaA,  // partner's associated token account of token_a
            partnerAtaB,  // partner's associated token account of token_b
            tokenProgram: TOKEN_PROGRAM_ID,
          },
          // Get tick arrays address by createTickArrayRange first, then get theirs account data by fetcher,getTickData().
          remainingAccounts,
        }
      );

Structure

|____integration
| |____jupiter
|____src
| |____cli
| |____errors
| |____idls
| | |____clmmpool.json
| | |____clmmpool.ts
| |____impl
| |____math
| |____network
| |____quotes
| | |____public
| |____types
| |____utils
| |____clmmpool-client.ts
| |____context.ts
| |____index.ts
| |____ix.ts
|____test
| |____instructions
| |____utils
|____package.json
|____README.md

Folder Details

• intergation: the sdk interface of the dex intergation, such as jupiter.
• src: the main content of crema sdk v2.
  • cli: The cli to develop complete applications.
  • error: The error type in crema program.
  • idls: Definition Language–IDL–specification.
  • impl: The functions implemented for frontbank.
  • math: All math arithmetic funcitions.
  • network: All functions about get some information from solana newwork.
  • quotes: Some functions about increase/decrease liquidity.
  • types: All type definition about program.
  • utils: All helpful utils.
  • context: The functions of clmmpool context.
  • ix.ts: All instruction definition interfaces.
• test: the test case of crema instruction.
  • instructions: Some test case of crema instructions.
  • utils: Some utils function used to test.
• package.json
• README.md

Community

You can join these groups and chats to discuss and ask clmm-sdk-v2 related questions:

• Discard
• Twitter Channel
• Medium
• Telegram Community

License

Crema-SDK-V2 is under the Apache 2.0 license. See the LICENSE file for details.