HTX Ccxt.base.errors.NetworkError : Htx GET Https://api.hbdm.com/linear-swap-api/v1/swap_contract_info?business_type=all

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HTX ccxt.base.errors.NetworkError : htx GET https://api.hbdm.com/linear-swap-api/v1/swap_contract_info?business_type=all

In this article, we will explore the issue of ccxt.base.errors.NetworkError when trying to fetch historical prices from HTX using the fetch_OHLCV method. We will go through the error message, identify the root cause, and provide a solution to resolve the issue.

The error message is as follows:

ccxt.base.errors.NetworkError: htx GET https://api.hbdm.com/linear-swap-api/v1/swap_contract_info?business_type=all

The root cause of this issue is a certificate verification error. The error message indicates that the certificate verify failed due to an inability to get the local issuer certificate.

The certificate verification error occurs when the SSL/TLS connection between the client and the server fails to verify the server's certificate. This can happen due to various reasons such as:

  • The server's certificate is not trusted by the client.
  • The server's certificate is expired or not valid.
  • The client's certificate store is not up-to-date.

To resolve this issue, we need to update the client's certificate store or configure the client to trust the server's certificate. Here are the steps to follow:

Step 1: Update the Client's Certificate Store

Update the client's certificate store to include the server's certificate. This can be done by running the following command:

sudo apt-get update
sudo apt-get install ca-certificates

Step 2: Configure the Client to Trust the Server's Certificate

Configure the client to trust the server's certificate by adding the following code to the ~/.ccxt/config.json file:

{
  "http": {
    "verify": false
  }
}

Here is the updated code that includes the solution:

import ccxt
import pandas as pd
import datetime as dt

# Define the exchange ID
exchange_id = 'htx'  # Change this to your desired exchange

# Define the symbol, timeframe, and limit
symbol = 'BTC/USDT'
timeframe = '1m'
limit = 200

# Define the start date and convert it to a Unix timestamp in milliseconds
start_date = dt.datetime(2025, 1, 29, 0, 0, 0).strftime("%Y-%m-%d %H:%M:%S")
start_timestamp = int(dt.datetime(2025, 4, 29, 0, 0).timestamp() * 1000)

# Fetch OHLCV data
params = {}

# Fetch OHLCV data
exchange = getattr(ccxt, exchange_id)({})
exchange.config['http']['verify'] = False
ohlcv = exchange.fetch_ohlcv(symbol, timeframe, since=None, limit=limit, params=params)

# Convert the fetched data to a DataFrame
columns = ['timestamp', 'open', 'high', 'low', 'close', 'volume']
df_ccxt = pd.DataFrame(ohlcv, columns=columns)

# Convert the timestamp to a datetime object
df_ccxt['timestamp = pd.to_datetime(df_ccxt['timestamp'], unit='ms')

# Print the DataFrame for inspection
print(df_ccxt)

In this article, we explored the issue of ccxt.base.errors.NetworkError when trying to fetch historical prices from HTX using the fetch_OHLCV method. We identified the root cause as a certificate verification error and provided a solution to resolve the issue by updating the client's certificate store or configuring the client to trust the server's certificate. We also updated the code to include the solution.
HTX ccxt.base.errors.NetworkError : htx GET https://api.hbdm.com/linear-swap-api/v1/swap_contract_info?business_type=all

Q: What is the root cause of the ccxt.base.errors.NetworkError issue?

A: The root cause of this issue is a certificate verification error. The error message indicates that the certificate verify failed due to an inability to get the local issuer certificate.

Q: What is a certificate verification error?

A: A certificate verification error occurs when the SSL/TLS connection between the client and the server fails to verify the server's certificate. This can happen due to various reasons such as:

  • The server's certificate is not trusted by the client.
  • The server's certificate is expired or not valid.
  • The client's certificate store is not up-to-date.

Q: How can I resolve the certificate verification error?

A: To resolve this issue, you need to update the client's certificate store or configure the client to trust the server's certificate. Here are the steps to follow:

Step 1: Update the Client's Certificate Store

Update the client's certificate store to include the server's certificate. This can be done by running the following command:

sudo apt-get update
sudo apt-get install ca-certificates

Step 2: Configure the Client to Trust the Server's Certificate

Configure the client to trust the server's certificate by adding the following code to the ~/.ccxt/config.json file:

{
  "http": {
    "verify": false
  }
}

Q: What is the difference between updating the client's certificate store and configuring the client to trust the server's certificate?

A: Updating the client's certificate store involves adding the server's certificate to the client's certificate store, which allows the client to trust the server's certificate. Configuring the client to trust the server's certificate involves setting the verify option to false in the client's configuration file, which allows the client to bypass the certificate verification process.

Q: How can I verify that the certificate verification error has been resolved?

A: To verify that the certificate verification error has been resolved, you can try to fetch the historical prices from HTX using the fetch_OHLCV method again. If the error message is no longer displayed, it indicates that the certificate verification error has been resolved.

Q: What are some common causes of certificate verification errors?

A: Some common causes of certificate verification errors include:

  • The server's certificate is not trusted by the client.
  • The server's certificate is expired or not valid.
  • The client's certificate store is not up-to-date.
  • The client's configuration file is not properly set up.

Q: How can I prevent certificate verification errors in the future?

A: To prevent certificate verification errors in the future, you can:

  • Regularly update the client's certificate store to include the latest certificates.
  • Configure the client to trust the server's certificate by setting the verify option to false in the client's configuration file.
  • Use a reputable certificate authority to obtain the server's certificate.
  • Regularly check the server's certificate for expiration and validity.