## API

| Method Name      | Request Type        | Response Type            | Description                                    |
|------------------|---------------------|--------------------------|------------------------------------------------|
| GetBlocks        | BlocksRequest       | stream Block             | Returns a stream of blocks for a given shard   |
| GetShardChunks   | ShardChunksRequest  | ShardChunksResponse      | Returns chunks of serialized block data         |

## BlocksRequest

| Field                  | Type    | Label  | Description                                         |
|------------------------|---------|--------|-----------------------------------------------------|
| shard_id               | uint32  |        | ID of the shard to get blocks from                 |
| start_block_number     | uint64  |        | Block number to start from (inclusive)             |
| stop_block_number      | uint64  | optional| Block number to stop at (inclusive)                |

## ShardChunksRequest

| Field                  | Type    | Label  | Description                                         |
|------------------------|---------|--------|-----------------------------------------------------|
| shard_id               | uint32  |        | ID of the shard to get chunks from                 |
| start_block_number     | uint64  |        | Block number to start from (inclusive)             |
| stop_block_number      | uint64  | optional| Block number to stop at (inclusive)                |

## ShardChunksResponse

| Field                  | Type        | Label  | Description                                         |
|------------------------|-------------|--------|-----------------------------------------------------|
| shard_chunks           | ShardChunk  | repeated| Array of shard chunks                               |

## Block

| Field                  | Type          | Label  | Description                                         |
|------------------------|---------------|--------|-----------------------------------------------------|
| header                  | BlockHeader   |        | Header info for the block                          |
| messages                | Message       | repeated| Array of messages in the block                     |