Questions tagged [ligo]
The ligo tag has no usage guidance.
73
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2
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Taqueria/Ligo install problems
I'm trying to run through this tutorial on DApp development with Ligo (https://tezos.com/developers/tutorials/nft-ligo-marketplace/) and am running into an error.
TAQ_LIGO_IMAGE=ligolang/ligo:0.73.0 ...
- 2,635
0
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1
answer
12
views
Is there a way to extend existing signature?
I have a question regarding new module signatures. Is there a way to extend existing signature?
module type S1 = sig
type t
val v : t
end
module type S2 = sig
include S1
val v2 : t
end
...
user9011
0
votes
1
answer
11
views
Is it possible to pack a js object with specific types for its properties that can be unpacked in a smart contract
Is it possible to pack a javascript object with specific types for its properties that can be unpacked in a smart contract (for example Bytes.unpack in ligo)?
I've come to the same point as the ...
user9011
0
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0
answers
11
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After compiling a jsligo contract, the resulting michelson contract has errors and cannot be deployed
After compiling a jsligo contract, the resulting michelson contract has errors and cannot be deployed.
The error is "invalid primitive name".
Has anyone ever gotten this error ? Do you know ...
user9011
0
votes
1
answer
11
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How can I call a contract using : Tezos.transaction(`parameter, tez, contract<`parameter>)
Since declaration of entrypoint with @entry
How can I call a contract using :
Tezos.transaction(`parameter, tez, contract<`parameter>)
I mean in doc the example is :
let contract =
match (...
user9011
0
votes
1
answer
7
views
How can I assert that a contract transfer fails with a particular error message?
How can I assert that a contract transfer fails with a particular error message? Tried a couple things, including this:
match call_as pledger1 Get_refund 1tz taddr with
| Success _ -> ...
user9011
0
votes
1
answer
7
views
Does anyone have template code calling balance_of entrypoint using JSLigo?
Does anyone have template code calling balance_of entrypoint using JSLigo? I want sth similar to Tezos.get_balance() but getting FA2 token balance instead of tez.
user9011
0
votes
1
answer
7
views
Stuck trying to pass a partial object to an entrypoint in Ligo
I was hoping for a little guidance for jsligo.
I am writing a simple contract that I am trying to make into a teaching tool. However I am stuck trying to pass a partial object to an entrypoint.
type ...
user9011
0
votes
2
answers
34
views
Contract compile error in Dapp tutorial (wine collection marketplace)
I'm trying to run through this tutorial on dapp development with ligo (https://tezos.com/developers/tutorials/nft-ligo-marketplace/) and am running into an error. In the "NFT Marketplace Contract&...
0
votes
1
answer
21
views
How to compile a LigoLang jsLigo written smart contract on Windows + vsCode?
I'm beginning to learn to write Tezos smart contracts with LigoLang using jsLigo as programming language and Windows as operating system. For IDE I'm using vsCode. I've followed the Getting Started ...
- 921
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25
views
Unable to interact with other contracts because Tezos.get_contract_opt got None
I tried to interact with other contracts but failed because Tezos.get_contract_opt always returns None. Here's the demo code (ligo v0.60.0):
receiver.jsligo - A contract that the "broadcaster&...
1
vote
3
answers
38
views
How do you generate your initial storage for deployment in ligo?
I'm curious about your strategies regarding the following questions:
How do you generate your initial storage for deployment ? Where do you store your storage types ? Do you keep your storage ...
user9011
0
votes
2
answers
13
views
Merkle Tree implementation in Ligo
I am looking for an implementation of a merkle tree, in ligo. Could somebody help me please?
From Slack, to share the answers for others its posted on Stackexchange.
user9011
1
vote
1
answer
54
views
Writing SmartPy tests along with LIGO contracts
I have a set of smart contracts coded in SmartPy. They are heavily interdependent and some of them also interact with cTez contracts.
I need to write SmartPy tests to check if everything is working ...
- 675
1
vote
1
answer
37
views
Convert bytes to string in CameLIGO?
I would like to convert a bytes type to a string type.
How can this be done in pure CameLIGO?:
let data: bytes = [%bytes "hello"] in
let str: string = ???
Thank you,
Edward
- 128
1
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1
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30
views
How to test that an error is raised in ligo?
I would like to know if there is some way of testing for error raised with failwith in ligo using the testing framework?
There doesn’t seem to be any documented try-catch mechanism yet, or am I ...
0
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0
answers
27
views
"Cannot unify set with unit" error
I am trying to write a simple contract in which I am using set of records as storage.
type data = {
message : string,
did: address
};
type parameter =
| ["Published"]
| ["...
3
votes
3
answers
133
views
Smart contract availability and diversity on Tezos
I am researching about Tezos to what smart contract language there are available to use. When I look at the TezosWiki and other sources I came up to with this list:
Tezos Smart Contract Languages:
...
user8242
0
votes
2
answers
48
views
TransferOwnership in Tezos
Is there an analog of transferOwnership in Tezos?
It looks like it's possible to make custom FA2 contract and change owner. Is this correct?
Looking for an authorative answer
user8242
1
vote
1
answer
56
views
Tezos Smart Contract Language Specifications
Is there an equivalent "interface" keyword in any of the Tezos smart contract languages (i.e. smartpy, archetype, ligo) that is similar to solidity's keyword "interface".
If there ...
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votes
1
answer
163
views
How to get the owner of an FA2 token on chain
For an FA2 nft contract, how can I get the address of the owner of token_id 0 from inside another contract?
- 45
1
vote
2
answers
68
views
Can I create a smart contract from inside another smart contract in LIGO?
Through a parent contract, I want to be able to originate multiple child contracts. How can I do this in LIGO?
- 45
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1
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31
views
how to input data of type maps
This is a multiasset holding contract with code to mint and burn FA2 tokens but I am confused ion how to provide the inputs as it is getting errored token_info is the metadata section I want to put ...
1
vote
2
answers
42
views
Truffle is not working for compiling and deploying
Is anybody here still using Truffle in order to compile and deploy Tezos projects? I created a project with it over a year ago and wanted to update the environment. After dowloading the latest Ligo ...
user8242
0
votes
3
answers
47
views
Size of Big_map or Big_map is empty?
Is it possible to find the size of a Big_map, or to find out whether a Big_map is empty?
- 19
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1
answer
107
views
In List.fold, does accumulator have to be the same type as list?
I'm trying to loop through a mapping list (type_a) and update a different mapping list (type_b). Both lists are different.
For List.fold, does the accumulator have to be the same type as list? ie, if ...
- 19
0
votes
1
answer
76
views
How to write function that uses polymorphic types
I'm trying to write some functions in (came)ligo that compare several values as long as they are ints, strings, or nats. compare_equal is one of them.
This errors out with Only composed types of not ...
- 19
0
votes
1
answer
46
views
How does Tezos Checker work?
I am looking at Tezos Checker and wondering if there is a visualization of the process flow how it works? Specifically something like this for example?
user8242
1
vote
1
answer
134
views
Calling contract without knowing contract parameter type
If I wanted my contract to be able to call different types of contracts, with different parameters and parameter types, and I didn't know what those parameters were going to be ahead of time...
I have ...
- 19
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0
answers
77
views
ListValidationError on interacting with contract using Taquito
I'm trying to interact with this entrypoint using taquito
parameter pair
token_assets list($token_assets_item)
trigger_time timestamp
token_assets_item pair
amount nat
asset_id string
...
- 45
0
votes
1
answer
39
views
Ligo address being interpreted as string
I'm trying to initialise a contract that has an address option in its initial storage, but when I provide a valid address, it keeps being interpreted as a string; and compilation fails.
I have here a ...
- 128
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votes
1
answer
36
views
JSLigo Error: Invalid record field in record
I'm trying to write a smart contract with JSLigo. This contract has a storage type with a single string field and 2 functions, to update and reset this string:
type storage = {
name: string
};
...
- 69
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votes
1
answer
212
views
error when deploying my smart contract
I created a smart contract it compiles without problem but I have an error when deploying, I don't know what this error can refer to...
HttpResponse: Http error response: (500) [{"kind":&...
- 119
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1
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16
views
is it necessary to implement the permissions_descriptor?
With FA2 NFT tokens, is it necessary to implement the permissions_descriptor?
As far as I can see in tzkt, it doesn't look like it's actually being used. Are there any contracts that are actually used?...
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votes
2
answers
120
views
Tezos Contracts Compiling Error
I am just days into learning how to build a dapp on Tezos for my thesis. I tried replicating the steps from Claude's tutorial - https://hackernoon.com/build-your-first-dapp-on-tezos-rwgl3ymb
I ran ...
2
votes
1
answer
63
views
Cannot get to initialize empty list in CameLIGO
I'm trying to write a smart contract in CameLIGO that looks like this
parameters
"Hello world"
storage
[{ text = "Blob"; voters = ["tz1TKc3zQBMv7Rez77sX4JNdqMvG33LQrURk"]}...
- 21
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votes
2
answers
59
views
Do FA2 entrypoints need to be at the top level in order to comply with the spec?
Most of the example FA2 implementations I've found, as well as the deployed contracts I've investigated have the required FA2 entrypoints (transfer, balance_of, update_operators) buried in the second ...
- 131
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votes
1
answer
50
views
How to check amount sent with transaction (like msg.value>6 in ethereum)
How do I check inside a contract entrypoint, that the user sent a particular amount with the transaction? In Frontend:
const operation = await contractInstance.methods.methodName().send({amount:12});
...
- 1
0
votes
1
answer
81
views
Is there a more sensible way to convert an int to a string in Cameligo?
Is there a more sensible way to convert an int to a string in Cameligo?
Alternatively, is there a way to concatenate an int or nat with a string?
type lookup = (int, string) map
let lookup: lookup = ...
- 189
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votes
1
answer
37
views
Compile multiple Ligo contracts at one go
I would like to compile all contracts in a folder at one go.
I tried
"compile all": "docker run --rm -v \"$PWD\":\"$PWD\" -w \"$PWD\" ligolang/ligo:0.24.0 ...
- 105
0
votes
2
answers
97
views
smart contract translation tool
Any known tool or website can translate the given online contract into ligo? For example, KT18fp5rcTW7mbWDmzFwjLDUhs5MeJmagDSZ, can I review the logic of this contract in ligo somewhere, however ...
1
vote
2
answers
100
views
what is the equivalent of ligo "compile-parameter" for smartpy?
The Smartpy compiler allow to compile a contract (compiling the code and the initial storage) but I don't see any "compile-parameter" option, that would allow to convert a smartpy command to ...
- 111
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1
answer
79
views
tqtezos / minter-sdk installation issue
I am trying to run below command for minter-contract on my local machine and getting error
npm i @tqtezos/minter-contracts
no such file or directory, chmod ‘/node_modules/@tqtezos/minter-contracts/...
- 101
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votes
1
answer
94
views
Get entrypoint operation (get_entrypoint_opt) fails
I have some troubles to call a contract.
This is the scenario:
Contract B (Entrypoint method "transfer"):
(pair %transfer (bytes %args1)
(pair (string %args2)
...
1
vote
2
answers
331
views
Best Language to Use with Tezos
There are a lot of options when it comes to coding Smart Contracts on Tezos. My question is simple, which of the supported languages is the best in terms of support, east of use, documentation, and ...
2
votes
1
answer
62
views
Support for emojis in LIGO?
Is LIGO going to get native support for emojis?
When I tried compiling a contract with the classic 🚀 (rocketship emoji) inside a string, I got the error Unexpected character '\240'.
Honestly, without ...
- 275
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votes
1
answer
29
views
Does LIGO support parameterized types?
Does LIGO support parameterized types?
Consider rcons, which is like cons (::) but with the arguments flipped.
I'd like to be able to write something like:
let rcons((xs, x): T list * T): T list =
x ...
- 275
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votes
1
answer
51
views
What's an elegant way to write "take" in CameLIGO?
What's an elegant way to write the classic take function in CameLIGO?
take takes the first num elements of a list.
This is how I'm writing it currently, and it's ugly.
Here, message is a type I ...
- 275
0
votes
1
answer
95
views
Cannot get transfer entrypoint
I'm trying to call an FA1.2 transfer function from another contract. Here is my endpoint in the FA1.2 contract:
type action is
| Transfer of michelson_pair(address, "from", michelson_pair(...
- 123
0
votes
1
answer
24
views
Is SmartPy package inside All Michaelson Supported Languages?
I've discovered that Liquidity, LigoLang and Ocamel Support Tezos development, but I've only found 1 resource that states that SmartPy supports only LigoLang. I wanted to use the right language to ...
- 1