Questions tagged [alchemy]
Used for questions related to Alchemy, a Web3 developer platform that provides supernode infrastructure, enhanced APIs, and other building and monitoring tools for building decentralized blockchain applications.
123
questions
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11
views
Trying Uniswap V3 Swap Example - Error: Transaction reverted: function call to a non-contract address
Have been getting bellow error message:
SwapExamples
swapExactInputSingle:
Error: Transaction reverted: function call to a non-contract account
at SwapExamples.swapExactInputSingle (contracts/...
- 1
0
votes
0
answers
10
views
How to get list of all NFTs owned by a EOA in a specific collection
I want to get all the NFTs an EOA owns in a specific collection but I found that none of the SDKs like Alchemy, Infura, etc provides this feature. So how can I do that?
0
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0
answers
10
views
I am Getting this error ProviderError: Must be authenticated!
ProviderError: Must be authenticated!
at HttpProvider.request (/workspaces/Decentralized-Voting-Application-on-Ethereum-Blockchain/node_modules/hardhat/src/internal/core/providers/http.ts:88:21)
...
- 77
0
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0
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22
views
i got a ParserError: Expected '(' but got identifier while using Hardhat
I got this error in the terminal while running the npx Hardhat compile I've tried looking at the other examples of the error Stack Exchange but none have been able to provide a fix for my issue.
...
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0
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17
views
How to create `ee-jwt-secret-file` for Teku node with Alchemy
I am looking to run a Teku node, but instead of connecting it to my own execution client, I'm looking to connect to a node as a service.
Is this possible
How do I create a ee-jwt-secret-file from ...
- 9,334
0
votes
1
answer
14
views
How to set owner wallet into useState from router.query?
I'm trying to set the address of a connected wallet into useState as string so that another function can use it to run it's function.
const router = useRouter();
const { walletAddress } = ...
0
votes
1
answer
21
views
Using connected wallet to fetch all NFTs using alchemy sdk
I'm trying to pass the user's connected wallet into getNftsForOwner function but am not sure how to do it. If I type out the address into the function like this:
const NFTs = await alchemy.nft....
0
votes
1
answer
43
views
Ethers.js Batch Fetch Archive Transactions by Hash
I have a big array of emitted events that I retrieved using an archive node with Ethers queryFilter. I want to get the transaction parameters for each of those transactions.
I am using Ethers.js await ...
- 126
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0
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60
views
Derived contract must override function "supportsInterface". Two or more base classes define function with same name and parameter types
TypeError: Derived contract must override function "supportsInterface". Two or more base classes define function with same name and parameter types.
--> royalty.sol:9:1:
|
9 | contract ...
1
vote
0
answers
11
views
How to filter smart contracts via method signature
is there anyone here who is an expert on dune/ethereum etl/alchemy? the question is - i'm doing research and want to find a quick way to query all smart contracts that implement/have called a certain ...
- 11
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13
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const { walletAddress } = req.query not passing wallet address to alchemy api
Alchemy api isn't recognizing the wallet address given by req.query. Not sure why. I tested it using Moralis api and it worked fine. Is this a known issue or is there a better way to input the ...
0
votes
1
answer
46
views
CORS policy error when trying to render image from pinata ipfs
pinata.js file
const FormData = require("form-data");
export const uploadJSONToIPFS = async (JSONBody) => {
const url = `https://api.pinata.cloud/pinning/pinJSONToIPFS`;
//making ...
0
votes
1
answer
21
views
how to receive values from openzeppelin royaltyInfo function
trying to implement like this
uint[2] memory royalty = royaltyInfo(_tokenId, price);
payable(royalty[0]).transfer(royalty[1]);
but getting error
TypeError: Different number of components on the left ...
0
votes
0
answers
36
views
Wrong simulated univ3 swaps using Alchemy alchemy_simulateExecution API
we are using your API endpoint alchemy_simulateExecution , but for some reason we seem to receive wrong values here.
for example check this tx: ...
- 11
0
votes
1
answer
235
views
Problem in getting test ethers from sepolia faucet by alchemy
I am getting error
"Sorry! To be fair to all developers, we only send 1 Sepolia ETH every 24 hours. Please try again after 24 hours from your original request."
on sepolia and mumbai faucets ...
1
vote
0
answers
40
views
Unable to run concurrent contract executions on polygon mainnet (Alchemy)
I'm currently encountering a peculiar issue on the Polygon Mainnet, which doesn't seem to occur on the Testnet. When running two or more parallel node processes which have two different wallets with ...
- 11
2
votes
1
answer
64
views
Why is Alchemy eth_getLogs not finding event logs for AaveV3 Supply events?
I have created a Node project that connects to Alchemy via ethers. I am trying to capture all Supply events for AaveV3
However, when I use the getLogs function, and use the contract address as the ...
- 788
1
vote
1
answer
17
views
before all" hook for "should allow a purchase" error - Chainshot
I am completing series of tutorials on chainshot. Now I am on events 4. - Sale and I am getting an error
"before all" hook for "should allow a purchase"
and I don't have an idea ...
- 11
1
vote
2
answers
43
views
TypeError: Member "push" is not available in uint256[] memory outside of storage
// SPDX-License-Identifier: MIT
pragma solidity 0.8.4;
contract Contract {
function filternEven(uint[] memory arr) external pure returns(uint[] memory a){
for(uint i=0;i<arr....
- 13
1
vote
2
answers
36
views
getting error as deploy file not found
require('dotenv').config();
require('@nomicfoundation/hardhat-toolbox');
const API_URL = process.env.API_URL;
const PRIVATE_KEY = process.env.PRIVATE_KEY;
const API_KEY=process.env.API_KEY
console....
- 23
1
vote
1
answer
20
views
Etherjs "contract.on" method in Reactjs to read events not loading on console
I am trying to display the events that are emitted from a function in my smart contract to the front end of my dApp, and I feel like I am missing a step in the connection process with my dApp.
I've ...
- 55
1
vote
0
answers
37
views
Alchemy notify slack webhook not working properly
I'm trying to get notifications on an address piped to slack, and Alchemy apparently has a free tool for this, but I can't get the webhook to work. Copied it directly from the slack app, but the tests ...
2
votes
1
answer
146
views
How to find total value in ETH of all NFTs owned by a user
I am aware that we could find all the NFTs owned by a user using alchemy’s NFTs API. However, I was wondering if there was a way to them compute the value of that particular users portfolio.
1
vote
2
answers
738
views
Insufficient funds when trying to deploy smart contract at goerli test network with alchemy
When I run the command "npx hardhat run scripts/deploy.js --network goerli" it gives me the error Error: insufficient funds for intrinsic transaction cost.
More specifically looks like this:...
1
vote
1
answer
170
views
reason: 'execution reverted: Not enough ether to purchase NFTs.', code: 'UNPREDICTABLE_GAS_LIMIT',
I am attempting to deploy a smart contract to the Sepolia testnet. I currently have ~1 Sepolia eth in my wallet. I am using Hardhat and Alchemy and I am following this tutorial Here is my code for ...
- 67
1
vote
0
answers
41
views
How Can I get both Incoming and Outgoing transactions from "getAssetTransfers" inside one request?
I'm working with alchemy's SDK.
And as per the Alchemy SDK documentation, it says we can get all the transactions
like this:
const config = {
apiKey: "<-- ALCHEMY APP API KEY -->",
...
- 11
4
votes
1
answer
239
views
If `provider` is essential in communicating with the blockchain, how is this following code working?
Here is the smart contract code:
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
interface Bucket {
function drop(...
- 360
2
votes
1
answer
244
views
Can someone explain me providers and the different types of it?
I can make providers using ether-hardhat, alchemy, and metamask. What is the difference between these?
- 360
2
votes
1
answer
76
views
Does Alchemy support batch requests for getAssetTransfers?
I am trying to make a batch request for getAssetTransfers endpoint.
However, when I try to do this, I get this error:
jsonrpc: '2.0',
id: 1,
error: {
code: -32600,
message: '...
- 21
1
vote
1
answer
103
views
Not able to send transaction using alchemy sdk
Hey i have to build a ERC20 contract and using alchemy sdk to send transactions onchain
For eg mint or burn tokens. But i am not able to send a transaction as its showing an error of cannot estimate ...
2
votes
1
answer
49
views
Is dedicated gateway a need for marketplace projects?
I am developing an NFT marketplace. It has a section showing images of NFTs ( NFTCards with some information ) of a specific contract address. Since the number of minted NFTs by the contract is high, ...
- 374
1
vote
3
answers
100
views
Getting NFTs of an address in a specific collection
I am using Alchemy API to handle fetching NFTs and their metadata in my platform. It has valuable methods, such as retrieving all issued NFTs of a collection or all owned NFTs of an address within a ...
- 374
1
vote
1
answer
80
views
Decode eth_call transaction
How to read "data params" and "value result" from eth_call method on Alchemy explorer ?
thanks.
- 41
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votes
0
answers
40
views
Error: call revert exception (method="getTotWaves()", errorArgs=null, errorName=null, errorSignature=null, reason=null, code=CALL_EXCEPTION,)
when i click "Wave at me" button i encounter with this call revert error!.
here is the App.js
import React, { useEffect, useState } from "react";
import { ethers } from "...
0
votes
1
answer
28
views
Type Error: Member "userAddress" not found or not visible after argument-dependent lookup in struct wavePortal.Payment storage ref[] storage ref
THE CODE:
//SPDX-License-Identifier: MIT
pragma solidity >= 0.8.0 < 0.9.0;
import "hardhat/console.sol";
contract wavePortal {
struct Payment {
address userAddress;
...
0
votes
2
answers
131
views
How to check the balance of a wallet within a contract and assign balance to a variable?
I'm trying to require the number of contract NFTs in a wallet < declared uint256 variable in order to proceed with safemint function. I have the following code but I can't work out what is ...
- 1
1
vote
0
answers
98
views
Alchemy API returning "not found" on endpoints in docs
I have the following code:
import requests
url = "https://eth-mainnet.g.alchemy.com/v2/<REDACTED_API_KEY>/findContractDeployer"
payload = {"contractAddress": "...
- 9,334
0
votes
3
answers
743
views
Retrying after error: 429: Your app has exceeded its concurrent requests capacity - fetching NFTs
I was fetching NFTs from certain contract for connected wallet using alchemy-sdk, and it was working fine, NFTs were retrieved and displayed on the frontend app.
But unfortunately this solution ...
- 187
0
votes
1
answer
166
views
How to get NFT transfer value using Achemy API
We are using getAssetTransfer to get all the transfers from and to a wallet for a specific NFT contract, similar to this https://docs.alchemy.com/docs/how-to-get-the-transfer-history-of-an-nft.
We are ...
0
votes
1
answer
412
views
Alchemy provider API provider does not support signing
I am using AlchemyProvider with ether.js to deploy a smart contract using frontend data
But I am not able to sign the provider i.e AlchemyProvider.
Code
const provider = new ethers.providers....
0
votes
1
answer
224
views
passing topics to the Alchemy eth_getLogs API call
I'm trying to use the Alchemy API to find specific events thrown by a set of contracts. One of the args that can be passed to the call is a list of topics (I'm using python, but my question is ...
- 13
0
votes
1
answer
18
views
Can we sell the physical goods using ERC721?
I'm new to this. can anyopne provide any feddback to the following things:
I need to build the marketplace to sell physical goods.
Can we sell the physical goods using ERC721?
I need to update the ...
1
vote
3
answers
621
views
When I try to deploy my smart contract to the goerli network, nothing happens
I finally got to test my smart contract for the first time on the Goerli network through alchemy. It worked twice as I check on Etherscan which is now gone, but when I run the command; 'npx hardhat ...
- 11
1
vote
3
answers
653
views
Does Alchemy "getAssetTransfers" get all transactions or just all asset transfers?
I'm working with alchemy's SDK and it looks like the getAssetTransfers API endpoint will return any value transaction from an address.
However, it also looks like it can return a list of all ...
- 9,334
0
votes
1
answer
119
views
Alchemy api eth_getProof returns a wrong storage slot
I encountered a issue that eth_getProof returns wrong storage key and proof. This is a bash script which could reproduce the issue. And after some tests, I found increasing the interval between thoes ...
0
votes
0
answers
76
views
Ethers ContractFactory not working for polygon mainnet
I'm using ethers' ContractFactory to deploy a contract with Alchemy RPCs.
async deployContract(contractObject: ContractObjectDto) {
try {
const chain = contractObject.chain.toLowerCase() as ...
0
votes
1
answer
54
views
How to use airdrop filter in parameters of alchemy's getNFT api
hello ! I have a question while using the alchemy api.
As shown in the picture above, it says tha can put "Airdrop" in the parameter "includeFilters[]" of the api. I'm running an ...
- 331
1
vote
1
answer
197
views
Minting 3D files onto opensea
I am new and I am building an NFT collection on Open Sea for my personal project. I have watched a couple of videos from Alchemy, the ERC721 smart contract video outlined how to upload and host files ...
- 11
-1
votes
1
answer
630
views
List of all transactions of a *specific* ERC20 token for a given wallet address using the alchemy-sdk? [duplicate]
For example, if I want to see all of the USDC transactions related to my wallet address, how can I fetch all of those transactions?
USDC contract address: 0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48
My ...
- 373
0
votes
1
answer
45
views
Unable to find WETH contract in mainnet fork
I have created a fork of the ethereum mainnet using Alchemy. When I try to fetch the WETH contract in the fork, it says no contract deployed at the given address (...
- 1