Cairo supports short strings up to 31 characters <https://www.cairo-lang.org/docs/how_cairo_works/consts.html#short-string-literals>. If you want to work with more than that, there's a library you can use <https://github.com/topology-gg/caistring>. Essentialy, it creates a `Str` type as a struct that has a length and a pointer to an array of short strings.


`struct Str:`


 `member arr_len : felt`


 `member arr : felt*`


`end`


﻿  



ㅤ
_This answer was originally posted on [Triality](https://triality.org/question/573)_

What is the proper way to declare a string in Cairo?


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/573)_

Declaring Strings in Cairo

I'm trying to run the contract example from https://pkg.go.dev/github.com/dontpanicdao/caigo#section-readme
```
cd examples/contract
go mod tidy
go run main.go
```
and i get 
```
./main.go:28:34: undefined: contracts.CounterCompiled
```

So i tried to compile the counter.cairo file and got
```
counter.cairo:17:5: Unknown identifier '__main__.counter.write'.
    counter.write(0);
    ^***********^
```
the code looks fine [https://github.com/coburn24/caigo/blob/main/contracts/src/counter.cairo](https://github.com/coburn24/caigo/blob/main/contracts/src/counter.cairo)
not sure why im getting this error
`cairo-compile v0.10.3`


caigo error: undefined: contracts.CounterCompiled

What is the cause of this issue and how do you solve it?


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/581)_

Cairo Error calling function: Expected 'function_name' to be a struct. Found: 'function'.

What are multi-calls in Account Abstraction? What will it bring to the UX?

How large can addresses be in Cairo?


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/670)_

How large can addresses be in Cairo?

![img](https://sun9-13.userapi.com/impg/9YrwMdCKAVbgBRKmMdGysFrP3qhbHWBiTNgp3A/64s3EVNAEpE.jpg?size=1158x874&quality=96&sign=f55c859f079b65212bc744b47e7bb7af&type=album)
Is there a plan to get better visibility when a transaction got received but not placed into a block?
For the moment we only know that it is RECEIVED but have no clue if it’s been discarded because of missing constructor params or if it’s just late:

```python
{
	transaction_hash: '0x3d26af3d7a8f17ea28c2a71a250fd8c5dcd162b779051fd36a3bfcd9f130fab',
	actual_fee: undefined,
	status: 'RECEIVED',
	status_data: undefined,
	messages_sent: [],
	events: [],
	l1_origin_message: undefined
}
```

upd: I noticed we are notified when we make an error, but:

1. we don’t know what’s happening between `RECEIVED` and `REJECTED | ACCEPTED_ON_L2`, it’d be nice to be able to monitor a bit more preceisely where’s the transaction in the pipeline

2. the error message is often cryptic and not human readable, ex:

```python
Error: REJECTED: TRANSACTION_FAILED
Error at pc=0:1073:
An ASSERT_EQ instruction failed: 9:6 != 9:5.
```

Is there a way / tool to be able to debug this kind of failed transactions?

A plan to get better visibility when a transaction got received but not placed into a block?

Hi ! Is there something going on the testnet? The block time remains the same, but I have to wait several dozen minutes for my transactions to be accepted

And so, most of the time, the gas price changes a lot between the moment I send the transaction, and its execution, thus I'm getting the `Actual fee exceeded max fee` error quite often

_This question was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

Is there something going on the testnet StarkNet?

1. Can anyone explain how to get Goerli ETH tokens?

2. Also want to know how to bridge tokens from the Goerli ETH testnet and move them to Goerli2 (StarkNet)?


---

> thank's for your answers, summing up how to transfer funds and how to use Faucet on Ethereum:


1. For receiving ETH on Goerli Test Net, I used [Goerli PoW Faucet](https://goerli-faucet.pk910.de/).
As an alternative, [https://goerlifaucet.com/](https://goerlifaucet.com/) can be used, but it is required to authorize.

2. I installed ArgentX using the links below and transferred funds using the [HashStack service for StarkNet](https://goerli2-bridge.hashstack.finance)

![https://www.bbntimes.com/images/Ethereum_Faucet.jpeg](https://www.bbntimes.com/images/Ethereum_Faucet.jpeg)

Popular tags

Declaring Strings in Cairo

1 answers

Your answer

Related

You may find useful