release-notes-v18

⬆️ Install or Upgrade

Follow the Flow CLI installation guide for instructions on how to install or upgrade the CLI.

⭐ Features

Resolve Contract Imports in Scripts and Transactions

This is a new feature that allows you to send transactions and scripts that reference contracts deployed using the project deploy command. Imports are resolved by matching contract source paths to their declarations in flow.json.

For example:

Example script: get_supply.cdc

import Kibble from "../../contracts/Kibble.cdc"
pub fun main(): UFix64 {
    let supply = Kibble.totalSupply
    return supply
}

Example command:

flow scripts execute ./get_supply.cdc

Note: Please make sure you first deploy the contract using flow project deploy command and that contracts are correctly added to the flow configuration.

Build, Sign and Send Transactions

New functionality allows you to build a transaction, sign it and send signed to the network in separated steps.

Build Transaction

Build new transaction and specify who will be the proposer, signer and payer account or address. Example:

flow transactions build ./transaction.cdc --proposer alice --payer bob --authorizer bob --filter payload --save payload1.rlp

Check more about this functionality in docs.

Sign Transaction

After using build command and saving payload to a file you should sign the transaction with each account. Example:

flow transactions sign ./payload1.rlp --signer alice --filter payload --save payload2.rlp

Send Signed Transaction

When authorizer, payer and proposer sign the transaction it is ready to be sent to the network. Anyone can execute the send-signed command. Example:

flow transactions send-signed ./payload3.rlp

Version Check

Automatically checks if a new version exists and outputs a warning in case there is a newer version. Example:

⚠️  Version Warning: New version v0.18.0 of Flow CLI is available.
Follow the Flow [CLI installation guide](../install.md) for instructions on how to install or upgrade the CLI

Create Account With Multiple Keys and Weights

Account creation can be done using multiple keys (--key) and new --key-weight flag. Flag enables you to set key weight for each of the keys. Command example:

accounts create \
    --key ca8cc7...76f67 --key-weight 500 \
    --key da8123...043ce --key-weight 500
Address	 0x179b6b1cb6755e31
Balance	 0.10000000
Keys	 2
Key 0	Public Key		 ca8cc7...76f67
	Weight			 500
	Signature Algorithm	 ECDSA_P256
	Hash Algorithm		 SHA3_256
	Revoked 		 false
	Sequence Number 	 0
	Index 			 0
Key 1	Public Key		 da8123...043ce
	Weight			 500
	Signature Algorithm	 ECDSA_P256
	Hash Algorithm		 SHA3_256
	Revoked 		 false
	Sequence Number 	 0
	Index 			 1

🎉 Improvements

Account Response Improved

Account response includes two new fields in key section: Sequence Number and Index.

Transaction Result Improved

Transaction result displays more information about the transaction. New format example:

Status		✅ SEALED
ID		b6430b35ba23849a8acb4fa1a4a1d5cce3ed4589111ecbb3984de1b6bd1ba39e
Payer		a2c4941b5f3c7151
Authorizers	[a2c4941b5f3c7151]
Proposal Key:	
    Address	a2c4941b5f3c7151
    Index	0
    Sequence	9
No Payload Signatures
Envelope Signature 0:
    Address	a2c4941b5f3c7151
    Signature	5391a6fed0fe...2742048166f9d5c925a8dcb78a6d8c710921d67
    Key Index	0
Events:	 None
Arguments (1):
    - Argument 0: {"type":"String","value":"Meow"}
Code
transaction(greeting: String) {
  let guest: Address
  prepare(authorizer: AuthAccount) {
    self.guest = authorizer.address
  }
  execute {
    log(greeting.concat(",").concat(self.guest.toString()))
  }
}
Payload:
f90184f90138...8a9462751237da2742048166f9d5c925a8dcb78a6d8c710921d67

Transaction error is now shown at the top of the result.

Transaction 0dd6294a7614bc0fbeb39b44a6e9f68e821225caa4baf4104a17dc1193d4f011 sealed
Status: SEALED
Execution Error: Execution failed:
error: invalid move operation for non-resource
  --> 0dd6294a7614bc0fbeb39b44a6e9f68e821225caa4baf4104a17dc1193d4f011:15:15
   |
15 |         useRes(<-result)
   |                ^^^ unexpected `<-`
error: mismatched types
  --> 0dd6294a7614bc0fbeb39b44a6e9f68e821225caa4baf4104a17dc1193d4f011:15:15
   |
15 |         useRes(<-result)
   |                ^^^^^^^^ expected `AnyResource`, got `&AnyResource`
Events:
  None

🐞 Bug Fixes

New Transaction ID Log

While sending transaction was in progress output displayed wrong transaction ID.

Init Reset Fix

Old configuration format caused an error saying to reset the configuration using reset flag, but when ran it produced the same error again. This bug was fixed.

Emulator Config Path

When running emulator command flow emulator config flag -f was ignored. This has been fixed, so you can provide a custom path to the config while running the start emulator command.

⬆️ Install or Upgrade​

⭐ Features​

Resolve Contract Imports in Scripts and Transactions​

Build, Sign and Send Transactions​

Build Transaction​

Sign Transaction​

Send Signed Transaction​

Version Check​

Create Account With Multiple Keys and Weights​

🎉 Improvements​

Account Response Improved​

Transaction Result Improved​

🐞 Bug Fixes​

New Transaction ID Log​

Init Reset Fix​

Emulator Config Path​