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Merge pull request #40 from DefiantLabs/patch/retry-block-timestamp-r…
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…equests-if-failed

Retry block time requests if they fail
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pharr117 authored Jan 9, 2024
2 parents 93bbf9f + cedca87 commit 043eda3
Showing 1 changed file with 16 additions and 4 deletions.
20 changes: 16 additions & 4 deletions app.py
Original file line number Diff line number Diff line change
Expand Up @@ -196,7 +196,7 @@ def get_block_time_rpc(rpc_url, height, allow_retry=False):
print(e)
# Attempt to retry the request if the error message indicates that the block height is too low
# Pulls the block height from the error message and adds 20 to it
if allow_retry and response and response.status_code == 500 and response.content:
if allow_retry and response is not None and response.status_code == 500 and response.content:
try:
error_message = json.loads(response.content)
if "lowest height is " in error_message.get("error", {}).get("data", ""):
Expand Down Expand Up @@ -673,10 +673,22 @@ def fetch_data_for_network(network, network_type, repo_path):
rest_server_used = current_endpoint
break

# Calculate average block time
current_block_time = get_block_time_rpc(rpc_server_used, latest_block_height)
past_block_time = get_block_time_rpc(rpc_server_used, latest_block_height - 10000, allow_retry=True)
current_block_time = None
past_block_time = None
avg_block_time_seconds = None
for rpc_endpoint in healthy_rpc_endpoints:
# Get average block time
current_endpoint = rpc_endpoint["address"]
current_block_time = get_block_time_rpc(current_endpoint, latest_block_height)
past_block_time = get_block_time_rpc(current_endpoint, latest_block_height - 10000, allow_retry=True)

if current_block_time and past_block_time:
break
else:
print(
f"Failed to query current and past block time for rpc endpoint {current_endpoint}, trying next rpc endpoint"
)
continue

if current_block_time and past_block_time:
current_block_datetime = parse_isoformat_string(current_block_time)
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