Trait pallet_mmr_primitives::MmrApi

pub trait MmrApi<Block: BlockT, Hash: Codec>: Core<Block> {
    fn generate_proof(
        &self, 
        __runtime_api_at_param__: &BlockId<Block>, 
        leaf_index: u64
    ) -> Result<Result<(EncodableOpaqueLeaf, Proof<Hash>), Error>, ApiError> { ... }
    fn generate_proof_with_context(
        &self, 
        __runtime_api_at_param__: &BlockId<Block>, 
        context: ExecutionContext, 
        leaf_index: u64
    ) -> Result<Result<(EncodableOpaqueLeaf, Proof<Hash>), Error>, ApiError> { ... }
    fn verify_proof(
        &self, 
        __runtime_api_at_param__: &BlockId<Block>, 
        leaf: EncodableOpaqueLeaf, 
        proof: Proof<Hash>
    ) -> Result<Result<(), Error>, ApiError> { ... }
    fn verify_proof_with_context(
        &self, 
        __runtime_api_at_param__: &BlockId<Block>, 
        context: ExecutionContext, 
        leaf: EncodableOpaqueLeaf, 
        proof: Proof<Hash>
    ) -> Result<Result<(), Error>, ApiError> { ... }
    fn verify_proof_stateless(
        &self, 
        __runtime_api_at_param__: &BlockId<Block>, 
        root: Hash, 
        leaf: EncodableOpaqueLeaf, 
        proof: Proof<Hash>
    ) -> Result<Result<(), Error>, ApiError> { ... }
    fn verify_proof_stateless_with_context(
        &self, 
        __runtime_api_at_param__: &BlockId<Block>, 
        context: ExecutionContext, 
        root: Hash, 
        leaf: EncodableOpaqueLeaf, 
        proof: Proof<Hash>
    ) -> Result<Result<(), Error>, ApiError> { ... }
}

API to interact with MMR pallet.

Provided methods

fn generate_proof(
    &self,
    __runtime_api_at_param__: &BlockId<Block>,
    leaf_index: u64
) -> Result<Result<(EncodableOpaqueLeaf, Proof<Hash>), Error>, ApiError>

Generate MMR proof for a leaf under given index.

fn generate_proof_with_context(
    &self,
    __runtime_api_at_param__: &BlockId<Block>,
    context: ExecutionContext,
    leaf_index: u64
) -> Result<Result<(EncodableOpaqueLeaf, Proof<Hash>), Error>, ApiError>

Generate MMR proof for a leaf under given index.

fn verify_proof(
    &self,
    __runtime_api_at_param__: &BlockId<Block>,
    leaf: EncodableOpaqueLeaf,
    proof: Proof<Hash>
) -> Result<Result<(), Error>, ApiError>

Verify MMR proof against on-chain MMR.

Note this function will use on-chain MMR root hash and check if the proof matches the hash. See Self::verify_proof_stateless for a stateless verifier.

fn verify_proof_with_context(
    &self,
    __runtime_api_at_param__: &BlockId<Block>,
    context: ExecutionContext,
    leaf: EncodableOpaqueLeaf,
    proof: Proof<Hash>
) -> Result<Result<(), Error>, ApiError>

Verify MMR proof against on-chain MMR.

Note this function will use on-chain MMR root hash and check if the proof matches the hash. See Self::verify_proof_stateless for a stateless verifier.

fn verify_proof_stateless(
    &self,
    __runtime_api_at_param__: &BlockId<Block>,
    root: Hash,
    leaf: EncodableOpaqueLeaf,
    proof: Proof<Hash>
) -> Result<Result<(), Error>, ApiError>

Verify MMR proof against given root hash.

Note this function does not require any on-chain storage - the proof is verified against given MMR root hash.

The leaf data is expected to be encoded in it’s compact form.

fn verify_proof_stateless_with_context(
    &self,
    __runtime_api_at_param__: &BlockId<Block>,
    context: ExecutionContext,
    root: Hash,
    leaf: EncodableOpaqueLeaf,
    proof: Proof<Hash>
) -> Result<Result<(), Error>, ApiError>

Verify MMR proof against given root hash.

Note this function does not require any on-chain storage - the proof is verified against given MMR root hash.

The leaf data is expected to be encoded in it’s compact form.

Trait Implementations

impl<Block: BlockT, Hash: Codec> RuntimeApiInfo for dyn MmrApi<Block, Hash>

const ID: [u8; 8]

The identifier of the runtime api.

const VERSION: u32

The version of the runtime api.

Implementors