feat(); SPL Tokens; new substream #124
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| // DO NOT EDIT - the file is generated by build script | |||
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| [toolchain] | |||
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Not really a fan of local toolchains for each project. Would be best to have these settings configured globally for all projects by default if possible
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| #[rustfmt::skip] | |||
| #[path = "../target/pb/messari.common.v1.rs"] | |||
| pub(in crate::pb) mod common_v1; | |||
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proto files aren't being used so we could remove them from the substream for now?
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| use substreams::{log, store}; | |||
| use substreams::pb; | |||
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| protobuf: | ||
| files: | ||
| - test.proto |
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| // DO NOT EDIT - the file is generated by build script | |||
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| [toolchain] | |||
| use substreams::store::{StoreGet, StoreGetProto, StoreNew, StoreSet, StoreSetProto}; | ||
| use substreams_solana::pb::sol as solana; | ||
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| #[substreams::handlers::map] |
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Perhaps you could move this to a modules folder like the other substreams are now doing?
| type: wasm/rust-v1 | ||
| file: "../target/wasm32-unknown-unknown/release/spl_balance.wasm" | ||
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| modules: |
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Think these modules are back to front?
| output.set( | ||
| 0, | ||
| format!( | ||
| "address:{}", |
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Maybe use a storekey struct or a small fn that you can reuse between modules
| /// A C representation of Rust's `std::option::Option` | ||
| #[repr(C)] | ||
| #[derive(Copy, PartialEq, PartialOrd, Eq, Ord, Debug, Hash)] | ||
| pub enum COption<T> { |
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This whole file can be removed and you can switch back to using std::Option instead
| /// Instructions supported by the token program. | ||
| #[repr(C)] | ||
| #[derive(Clone, Debug, PartialEq)] | ||
| pub enum TokenInstruction<'a> { |
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Shrink this enum down to having just three fields:
- InitializeMint
- InitializeMint2
- NonMintInstruction
You will also be able to remove all C api code and a bunch of the map code
| /// Specifies the authority type for SetAuthority instructions | ||
| #[repr(u8)] | ||
| #[derive(Clone, Debug, PartialEq)] | ||
| pub enum AuthorityType { |
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You can remove this also
| name: "".to_string(), | ||
| symbol: "".to_string(), | ||
| decimals: decimal.into(), | ||
| freeze_authority: "".to_string(), |
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You could have this all on one line using .map() and then .unwrap_or_default(). This would then make it simple enough to doing the instantiation back inside the main module code rather than this fn here.
| ) -> proto::TokenAccount { | ||
| let mut token = proto::TokenAccount { | ||
| address: bs58::encode(&token_address).into_string(), | ||
| name: "".to_string(), |
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Think all protos inherit the default trait automatically so you might be able to get away with ..default at the bottom rather than manually spefying these fields during the instantiation
| return token; | ||
| } | ||
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| // pull the TokenAccount using the key provided |
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What are your plans for this code block?
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| #[rustfmt::skip] | |||
| #[path = "../target/pb/messari.sol_token.v1.rs"] | |||
| pub(in crate::pb) mod sol_token_v1; | |||
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Just noting this here for the future but what we should do here is filter out all protos which are from substream-helpers in the build.rs script and not build bindings for them. Then we can just import the bindings from the substreams-helper crate instead which will avoid the unnecessary duplication of code here
| version = "0.1.0" | ||
| description = "Messari's standardized substream for solana SPL tokens" | ||
| edition = "2021" | ||
| repository = "https://github.com/messari/substreams" |
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Not really that important but it would be nice to have all these links be consistant. (If you use the CLI to create the substream projects it will do this for you :) )
2 participants
New substream to get SPL token balances on solana.
Deliverables:
sol_token.prototo get the balances of all spl tokens on solanaModel off: https://github.com/streamingfast/substreams-playground/tree/master/modules/sol-spl-tokens