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Jon Cinque 2022-08-05 15:21:59 +02:00
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docs/src/token-2022/onchain.md
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@ -2,12 +2,15 @@
title: On-chain Program Guide title: On-chain Program Guide
--- ---
## Supporting Token and Token-2022 Together In Your Program
This guide is meant for on-chain program / dapp developers who want to support This guide is meant for on-chain program / dapp developers who want to support
Token and Token-2022 concurrently. Token and Token-2022 concurrently.
## Prerequisites ## Prerequisites
This guide requires the Solana CLI tool suite. This guide requires the Solana CLI tool suite, minimum version 1.10.33 in order
to support all Token-2022 features.
## Motivation ## Motivation
@ -21,6 +24,10 @@ Important note: if you do not wish to support Token-2022, there is nothing to do
Your existing on-chain program will loudly fail if an instruction includes any Your existing on-chain program will loudly fail if an instruction includes any
Token-2022 mints / accounts. Token-2022 mints / accounts.
Most likely, your program will fail with `ProgramError::IncorrectProgramId` while
trying to create a CPI instruction into the Token program, providing the Token-2022
program id.
## Structure of this Guide ## Structure of this Guide
To safely code the transition, we'll follow a test-driven development approach: To safely code the transition, we'll follow a test-driven development approach:
@ -83,7 +90,7 @@ If you're using `solana-test-validator` for your tests, you can include it using
$ solana-test-validator -c TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb $ solana-test-validator -c TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb
``` ```
Note: This step is temporary, until Token-2022 is included by default in **Note**: This step is temporary, until Token-2022 is included by default in
`program-test` and `solana-test-validator`. `program-test` and `solana-test-validator`.
The token-swap does not use `program-test`, so there's a bit more The token-swap does not use `program-test`, so there's a bit more