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Top Questions

0 votes
2 answers
1k views
How to swap wETH for ETH on Polygon network?
0 votes
1 answer
999 views
This transaction is expected to fail. Trying to execute it is expected to be expensive but fail, and is not recommended
3 votes
3 answers
351 views
NFT royalties with solidity smart contracts
1 vote
1 answer
282 views
What should I write in token decimal while importing NFT in Metamask
3 votes
2 answers
132 views
Bulk Distribution of NFTs to Wallets with Varying Quotas
2 votes
2 answers
139 views
How to deploy a bytecode-only contract without an ABI
1 vote
1 answer
95 views
Can an ERC-20 have more than 18 decimals?
3 votes
2 answers
87 views
What is the most gas efficient way to get the value of a bit in an unsigned integer?
1 vote
1 answer
103 views
If a function returns two or more values and I wish to use one of the two in another function, how do I do that?
1 vote
2 answers
138 views
Can't reproduce the reentrancy bug
0 votes
0 answers
221 views
How to set a max supply of an ERC-721 token?
1 vote
3 answers
131 views
How can I put price on my nft with my token
1 vote
2 answers
60 views
Deploying a simple contract to ETH Mainnet (from remix) costing $500? Am I doing this wrong?
1 vote
2 answers
98 views
Hardhat how to impersonate an account for a local fork without using etherjs
2 votes
1 answer
95 views
Same ERC20 token on both BSC & Ethereum networks
0 votes
1 answer
198 views
We send the balance of the smart contrat using payable function to another smart contrat on gnosis safe
0 votes
2 answers
115 views
Different IDs for bulk NFT mint in ERC-1155
1 vote
1 answer
86 views
Burn ERC721 without externally exposed burn function
0 votes
1 answer
139 views
How to access the price nft asset is being sold for in your NFT contract?
1 vote
2 answers
79 views
Message call to another contract with argument not working
0 votes
0 answers
163 views
Web3.js package throws a lot of errors when importing in React app
0 votes
1 answer
158 views
Approve BUSD token in pancakeswap
1 vote
2 answers
123 views
How to use calldata return values in Solidity and when are they useful?
0 votes
1 answer
122 views
Fail with error 'TransferHelper: TRANSFER_FROM_FAILED' even approved in contract
1 vote
1 answer
91 views
Swap for tokens with Bot Protection Enabled (BpEnabled)
1 vote
2 answers
91 views
Is it possible to make a static call to a non-static function from within a smart contract without changing blockchain state?
1 vote
1 answer
114 views
How to query my Polygon NFTs created on Opensea?
0 votes
0 answers
146 views
I get "There was a problem processing your request" when buying or accepting an offer on OpenSea
0 votes
3 answers
40 views
Consensus and Trust
1 vote
2 answers
50 views
Error publishing source code
0 votes
2 answers
64 views
Using ECDSA to verify a signature inside smart contract
2 votes
1 answer
82 views
+100
Sending a transaction despite ContractLogicError
0 votes
1 answer
135 views
Undefined output when using getPair and getReserves in web3 / node.js
1 vote
1 answer
104 views
How are Uniswap fees distributed equally factoring in both proportion and duration pooled?
0 votes
0 answers
133 views
How to fix PancakeLibrary: INSUFFICIENT_INPUT_AMOUNT?
1 vote
1 answer
103 views
Polygon Mumbai test net MATIC tokens
1 vote
1 answer
80 views
How to call an external contract function using custom Struct from typescript
1 vote
1 answer
102 views
TypeError: Member "toString" not found or not visible after argument-dependent lookup in uint256
0 votes
1 answer
126 views
How to approve() a ERC721 token to an unknown address which buys the token at some later point?
1 vote
2 answers
76 views
Expected Identifier but got '='
0 votes
0 answers
124 views
How to disconnect Metamask Wallet from website using web3?
0 votes
1 answer
124 views
ERC-1155 interface with MetaMask mobile
0 votes
2 answers
75 views
Cannot approve or sell token swapExactTokensForTokens: transaction fails (not a honeypot)
1 vote
2 answers
123 views
raise ValueError("Explorer API not set for this network") ValueError: Explorer API not set for this network
1 vote
1 answer
94 views
how to hardhat test against a mainnet fork?
1 vote
1 answer
91 views
Using Gnosis Safe to deploy a smart contract
1 vote
3 answers
69 views
Is there an easy to use command line tool to create send transactions in Ethereum and forks of ethereum?
2 votes
2 answers
53 views
Why is my NFT showing as a placeholder image instead of the actual NFT image?

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