async def list_blocks(self, request):
"""Fetches list of blocks from validator, optionally filtered by id.
Request:
query:
- head: The id of the block to use as the head of the chain
- id: Comma separated list of block ids to include in results
Response:
data: JSON array of fully expanded Block objects
head: The head used for this query (most recent if unspecified)
link: The link to this exact query, including head block
paging: Paging info and nav, like total resources and a next link
"""
paging_controls = self._get_paging_controls(request)
validator_query = client_pb2.ClientBlockListRequest(
head_id=request.url.query.get('head', None),
block_ids=self._get_filter_ids(request),
paging=self._make_paging_message(paging_controls))
response = await self._query_validator(
Message.CLIENT_BLOCK_LIST_REQUEST,
client_pb2.ClientBlockListResponse,
validator_query)
return self._wrap_paginated_response(
request=request,
response=response,
controls=paging_controls,
data=[self._expand_block(b) for b in response['blocks']])
def block_list(self, request):
"""
Fetch a list of blocks from the validator
"""
response = self._query_validator(
Message.CLIENT_BLOCK_LIST_REQUEST,
client.ClientBlockListResponse,
client.ClientBlockListRequest()
)
blocks = [RouteHandler._expand_block(b) for b in response['blocks']]
return RouteHandler._wrap_response(data=blocks)
async def _get_latest_block_id(self):
resp = await self._connection.send(
Message.CLIENT_BLOCK_LIST_REQUEST,
client_pb2.ClientBlockListRequest(paging=client_pb2.PagingControls(
count=1)).SerializeToString())
block_list_resp = client_pb2.ClientBlockListResponse()
block_list_resp.ParseFromString(resp.content)
if block_list_resp.status != client_pb2.ClientBlockListResponse.OK:
LOGGER.error('Unable to fetch latest block id')
return block_list_resp.head_id
def block_list(self, request):
"""
Fetch a list of blocks from the validator
"""
head = request.url.query.get('head', '')
response = self._query_validator(
Message.CLIENT_BLOCK_LIST_REQUEST, client.ClientBlockListResponse,
client.ClientBlockListRequest(head_id=head))
blocks = [RouteHandler._expand_block(b) for b in response['blocks']]
return RouteHandler._wrap_response(data=blocks,
metadata=RouteHandler._get_metadata(
request, response))