How to swap SOL <-> token / vise versa but on-chain (in a smart contract)? On Raydium or SolDex

External question — Solana Stack Exchange Author: barugaggi Original post: https://solana.stackexchange.com/questions/10018 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. I'm aware of this question How to interact with router for swap transaction? but mine is different. How to swap a token for SOL or vise versa from within a Solana program/smart contract ? That is, on-chain. How to interract with a router of either Raydium or SolDex? I haven't found any example of this.

External answer — Solana Stack Exchange Author: Stendhal Original post: https://solana.stackexchange.com/a/12347 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. Here you'll find demo implementation of Raydium routing engine. To interact directly with the routing program, you'll just need to make up your functions and plug your rpc + private key in the config files. More details in the README.md. The new bi-directional routing engine - available on the beta - should get open-sourced very soon. Link to Raydium SDK: https://github.com/raydium-io/raydium-sdk

External answer — Solana Stack Exchange Author: 0xp3p3x0 Original post: https://solana.stackexchange.com/a/23176 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. https://github.com/0xcrust/raydium-swap plz read this,It might help you.