async def get_block(self, header_hash) -> Optional[FullBlock]:
try:
response = await self.fetch("get_block",
{"header_hash": header_hash.hex()})
except aiohttp.client_exceptions.ClientResponseError as e:
if e.message == "Not Found":
return None
raise
return FullBlock.from_json(response)
def test_json(self):
bt = BlockTools()
test_constants: Dict[str, Any] = {
"DIFFICULTY_STARTING": 5,
"DISCRIMINANT_SIZE_BITS": 16,
"BLOCK_TIME_TARGET": 10,
"MIN_BLOCK_TIME": 2,
"DIFFICULTY_FACTOR": 3,
"DIFFICULTY_EPOCH": 12, # The number of blocks per epoch
"DIFFICULTY_WARP_FACTOR":
4, # DELAY divides EPOCH in order to warp efficiently.
"DIFFICULTY_DELAY": 3, # EPOCH / WARP_FACTOR
}
block = bt.create_genesis_block(test_constants, bytes([0] * 32), b"0")
str_block = block.to_json()
assert FullBlock.from_json(str_block) == block