Nonce Override in python ccxt

so I keep recieveing this message when trying to place trades using ccxt: "Timestamp for this request is not valid." I've read the ccxt manual and it says to override the nonce I should use: class...

How to transfer Ethereum from one wallet to another wallet by using web3?

I am in the process of developing a custom ETH wallet, I am able to generate the public/private keys by using vanity eth. After receiving the amount in this wallet, I need to send ETH to another...

String request using volley

I am trying to get data of Crypto coins from https://min-api.cryptocompare.com/data/all/coinlist. Coins.java public class coins extends AppCompatActivity { List<coinlist> coinList; ListView...

Sending signed transactions to Ropsten

It's easy to use web3js to call functions that don't require signing (e.g. functions that do not update the state of a contract). However, it's not clear how to call functions that require...

BlockCypher Send Transaction

I am trying to implement the BlockCypher Ethereum API following the docs here: https://www.blockcypher.com/dev/ethereum/#transaction-api I am using the Test Network /beth/test, rather than...

binance eth-btc order 400 bad request

I have been having a weird error when trying to process an order with my web application I built in ASP.NET/C#. The interesting thing is the other calls work, like getting your account balance. So...

python pandas concat : ValueError: Shape of passed values is (4, 9), indices imply (4, 5)

I am logging into various network devices and trying to concat the output. Below is the script i am running and its working fine perfectly. I am facing the issue when i am trying to Concat the...

hapi-swagger Joi string example

I'm having an issue with adding proper examples to hapi-swagger with Joi. When I add .example('') to either the response schema or validate { payload: {} } it's adding an additional obj with a...

geth account new could not decrypt key with given passphrase

I want to synchronize with the network test network. I create a new user with the following command: sudo geth --datadir/data/ethereum/test --keystore /data/ethereum/test/keystore account...

Getting HTML table via pandas read_html won't work

What works I managed to get data from a hmtl table via pd.read_html like so: In[1]: import numpy as np import pandas as pd from tabulate import tabulate URL =...

web3j - Get transaction details (amount, gas price, gas limit) from signed transaction

I have a frontend in javascript and a backend in Java. I let the user sign a raw transaction with his private key in the frontend with web3js. Afterwards the signed transaction is returned to the...

Changing multiple keys on a JSON FILe using Python

I am trying to update a new key into my JSON file if the conditions are met. The following is my python code attempting to make multiple updates in a JSON file. #!/usr/bin/env python # Usage:...

Arbitrage Trading of ETH/BTC using ccxt crypto API throws error while creating buy order

I am working on an app that does ETH/BTC arbitrage trading of crypto-currency using ccxt crypto API for PHP, and i keep receiving this Network Error exception thrown from the API call usually...

Nested JSON call giving: Uncaught SyntaxError: Missing } in template expression

I hope this isn't a duplicate, I've found similar questions but none that show exactly my issue. I'm working in Nomics API, which is a cryptocurrency API. Here's the API request I'm making:...

pip install web3 not installing

any advice would be greatly appreciated. I have installed visual studio like it tells me in the error and I have also attempted to pip install this in a venv environment however its still not...

How can I get more information on Python unexpected SIGABRT?

I'm using: MacOS Catalina, version 10.15 (19A603). python 3.7.4 pip3 Running and Debugging the following Python code within venv: import jose print(jose) from jose import jwt token =...

filtering a json set of data when dateformat is a string

Suppose you have a json response string like this one, and you want to filter by date. You want to display records ONLY after a certain date. [{btc=0, datetime=2018-01-30 12:16:11, eur=410.00,...

Generating ethereum address from ECDSA Public Key

I am using node-webcrypto-p11 and generating keys via following code keys = crypto.subtle.generateKey({name: "ECDSA", namedCurve: "K-256"}, false, ["sign", "verify"]); what is the eth...

How to use my own public/private key to encrypt string C# Asp.net core

I have spent several hours trying to have a valid Encrypt/Decrypt function that uses Asymmetric encryption, and the best option seems to be RSA. But The thing is that I want to be able to provide...

Failed to install gcc on Python-3.7-alpine docker container

I am trying to set up a Python docker container, when I run the command "docker-compose up" to build the Dockerfile it throws me this error message below. The docker file was successfully built...

cannot install web3 in python virtual_enviroment

I am using $pip install web3 inside a python_virtual_env, but I get the error below. Defaulting to user installation because normal site-packages is not writeable Collecting web3 Using...

ImportError: Couldn't import Django after running " heroku python manage.py migrate" in CMD

I have a following error after running " heroku python manage.py migrate " in CMD. C:\Users\ky2001\Desktop\my_app>heroku run python manage.py migrate Running python3 manage.py migrate on ⬢...

Unable to install web3. I get an error saying version does not satisfy requirement rusty-rlp

I am trying to install some packages for Python. When installing web3, I get an error saying there is no version that satisfies rusty-rlp. Other packages get installed fine. I am using pip...

Using Uniswap SDK gives me this error: resolver or addr is not configured for ENS name

I am trying to swap ETH for DAI tokens using the UniSwap SDK and javascript, but am getting the following error on running the script. (node:10096) UnhandledPromiseRejectionWarning: Error:...

When I use the same seed phrase for both Ethereum and RSK, why is my address capitalised differently?

If I import the same private key in ETH and RSK networks, the account is the same but the capitalization is different. Why is this? Is this OK?

Metamask reporting wrong balance in Ganache account?

I'm a little mystified why when I run Ganache and link to an account using the proviate key, Metamask reports an account balance of 200606 ETH when the account has only 100 ETH in it according to...

BROWNIE - installation issue

I am trying to install Brownie and get the following error " PS C:\Python39> pip install eth-brownie Collecting eth-brownie Using cached eth_brownie-1.14.6-py3-none-any.whl (207 kB) ...

Hardhat compile error "Expected a value of type HttpNetworkConfig"

I'm attempting to follow the NFT tutorial here. I have set up the accounts on Alchemy and Metamask created the .sol file. I have a .env file in root that looks like this: API_URL =...

PIP failed to build package cytoolz

I'm trying to install eth-brownie using 'pipx install eth-brownie' but I get an error saying pip failed to build package: cytoolz Some possibly relevant errors from pip install: ...

Why am I getting "Error processing transaction request: intrinsic gas too low" error when trying to add tUSDT to a particular account?

I am trying to send test USDT to a particular account in Java using the following code: final Web3j web3 = createWeb3If(ethNetworkUrl); final Credentials credentials =...