Questions tagged [blockfrost]
Anything referencing to Blockfrost API.
92
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Can we calculate transaction hash from the data?
Can we Calculate the transaction has from the data that we receive from blockfrost.
I would like to compare the transaction hash (already present) with the has calculated from the data from Blockfrost
...
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How to find the last time an asset was transferred from one wallet to another
Sounds easy enough to do with something like Blockfrost but the best method I could find involved many API calls to different endpoints. It doesn't sound like something that should be too hard so ...
- 1
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I want to develop my project related to Cardano
I want to develop a personal project related to Cardano. I have read some documents, but they require using project_id from Blockfrost. However, I don’t want to go that route. So, I’m wondering where ...
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Blockfrost API error with pycardano
I get blockfrost.utils.ApiError: {'status_code': 400, 'error': 'Bad Request', 'message': 'Invalid address for this network or malformed address format.'}
when using pycardano and this code
# Create a ...
- 101
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44
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blockfrost.io API, reference inputs and redeemer tx_index
AIUI, when using the blockfrost.io API, the tx_index field in a redeemer contains the index of the enclosing transaction's input that it consumes (is that true ?).
However, with reference inputs, it ...
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How to using Mesh for making transaction from specific address of seed and send ADA to another address
I was trying to make 1000 ADA addresses from one seed. I have used MESH and make payment addresses.
and deposit successfully on those addresses, now I need to send ADA from one of these generated ...
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39
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Validating ecdsa signature in aiken
Im trying to let my validator validate my ecdsa signature yet I get a weird JSON error:
Uncaught (in promise) SyntaxError: Unexpected non-whitespace character after JSON at position 4
My Validator for ...
- 1
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47
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Blockfrost policy/metadata api issues
I am trying to get the metadata for the policy ID
but every Blockfrost gives error saying "invalid path"
I am able to get data related to assest using:
"https://cardano-preprod....
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2
answers
77
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Could someone explain mangled addresses to me?
I am developing a dApp where a user can send a few ada (3) to an address that I am listening to on my backend server, and I send a few tokens back depending on what NFTs they have in the wallet. When ...
- 27
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How to monitor Cardano Minswap transactions using Blockfrost?
I was trying to monitor the swap actions
like who swapped which A to B Token, as real-time from Minswap platform.
I was using Blockfrost webhook for this, but I fetched lots of transactions including ...
- 13
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37
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Fetch rich cardano addresses?
I am building some dapps on Cardano network.
What I want to do is to
fetch cardano addresses whose balances are more than 1M ada.
Can anybody help me with this?
Thanks.
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Transaction submit error MissingVKeyWitnessesUTXOW
I am @emurgo/cardano-serialization-lib-nodejs to submit transaction in cardano.
I am getting following error.
Transaction 5c98317bc6caf027b91e807ed1cdd78571b8f9a791202b5feff5b32fa5f71f1f rejected,
...
- 51
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94
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TypeError: a bytes-like object is required, not 'Transaction'
I am trying to use the https://github.com/Python-Cardano/pycardano/blob/main/examples/native_token.py with minor changes, like pointing to mainnet (have tried preview as well). I have updated the ...
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Whats the python script to check if an cardano address has a script flag?
I have a script to fetch asset name, address from a policy id with blockfrost API, now I need to see if the asset is in a smart contract script. I have no coding skills but followed a tutorial to get ...
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Need to Retrieve Info from (NFT)Assets in Policy ID to see if they are in a Plutus Contract (smart contract) or Not using Blockfrost API
I have a python script that retrieves the NFT asset name, and addresses of a specific policy ID using blockfrost API. Now I need to amend the script to add to the csv whether or not the specific asset ...
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