testnets | OmniFlix testnet resources | Cryptography library

by OmniFlix Shell Version: Current License: No License

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kandi X-RAY | testnets Summary

testnets is a Shell library typically used in Security, Cryptography, Ethereum, React applications. testnets has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

All resources for participation in the testnets of the OmniFlix Network will be published here.

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testnets has a low active ecosystem.

It has 64 star(s) with 1342 fork(s). There are 5 watchers for this library.

It had no major release in the last 6 months.

testnets has no issues reported. There are 719 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of testnets is current.

Quality

testnets has 0 bugs and 0 code smells.

Security

testnets has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

testnets code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

testnets does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

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testnets releases are not available. You will need to build from source code and install.

It has 19 lines of code, 0 functions and 1 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

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testnets Key Features

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testnets Examples and Code Snippets

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Community Discussions

Trending Discussions on testnets

How to locally unit-test Chainlink's Verifiable Random Function?

I have a problem with my rinkeby faucet reagarding testnets?

Hardhat node, error in browser on localhost

How to fix "Unidentified contract"? OpenSea is unable to “understand” ERC1155

How list or sell item in opensea using python

How does truffle know which contract I'm referring to?

Chainlink Commidities [Gold, Silver, Oil] Pricefeeds on Testnet Smart Contracts

Figuring out how to mint NFT with delayed release, metadata not validating on opensea

API gives 406 code with Accept application/json request : Bluehost

What does LINK_TOKEN_POINTER do

QUESTION

How to locally unit-test Chainlink's Verifiable Random Function?

Asked 2022-Mar-08 at 04:12

Context

While trying to set up a basic self-hosted unit testing environment (and CI) that tests this Chainlink VRF random number contract, I am experiencing slight difficulties in how to simulate any relevant blockchains/testnets locally.

For example, I found this repository that tests Chainlinks VRF. However, for default deployment it suggests/requires a free KOVAN_RPC_URL e.g. from Infura's site and even for "local deployment" it suggests/requires a free MAINNET_RPC_URL from e.g. Alchemy's site.

Attempt/baseline

I adopted a unit test environment from the waffle framework which is described as:

Filestructure ...

ANSWER

Answered 2021-Sep-09 at 04:35

to test locally you need to make use of mocks which can simulate having an oracle network. Because you're working locally, a Chainlink node doesn't know about your local blockchain, so you can't actually do proper VRF requests. Note you can try deploy a local Chainlink node and a local blockchain and have them talk, but it isn't fully supported yet so you may get mixed results. Anyway, as per the hardhat starter kit that you linked, you can set the defaultNetwork to be 'hardhat' in the hardhat.config.js file, then when you deploy and run the integration tests (yarn test-integration), it will use mocks to mock up the VRF node, and to test the requesting of a random number. See the test here, and the mock contracts and linktoken get deployed here

Source https://stackoverflow.com/questions/69089799

QUESTION

I have a problem with my rinkeby faucet reagarding testnets?

Asked 2022-Feb-23 at 14:09

I want to get some free testnets from Rinkeby Authenticated Faucet but every time i do the whole process and pastes my link i got this message pop up.

Kindly tell me what should i do. OR there any good alternatives through which i can get the free testnets. I'm currently started learning Block-Chain, so i don't know much.

...

ANSWER

Answered 2022-Feb-23 at 14:09

You can try this one https://www.rinkebyfaucet.com/ you can get something like 0.1 Eth

https://rinkeby-faucet.com/ gives you 0.001

Source https://stackoverflow.com/questions/71197166

QUESTION

Hardhat node, error in browser on localhost

Asked 2022-Feb-08 at 01:00

I'm trying to debug & test a smart contract I developed, however doing so on testnets takes a lot of time and I wanted to test properly on local node.

I can create the node and deploy the contract, transfer from account to another in metamask, every thing works fine, except when I go to http://127.0.0.1:8545/ in browser, I get this error:

...

ANSWER

Answered 2022-Feb-08 at 01:00

This is an expected output. It's a response to the empty request body:

Source https://stackoverflow.com/questions/70997810

QUESTION

How to fix "Unidentified contract"? OpenSea is unable to “understand” ERC1155

Asked 2022-Jan-19 at 23:00

I have deployed a ERC-1155 based contract (based on OpenZeppelin) and minted some NFTs on this contract successfully. But when I want to use these NFTs in OpenSea, it always says "Unidentified contract".

Example: https://testnets.opensea.io/assets/0xc7d3e4a5A0c3e14ba8C68ea1b8a99a9dBf3ca76F/2

API-Example: https://testnets-api.opensea.io/api/v1/asset/0xc7d3e4a5A0c3e14ba8C68ea1b8a99a9dBf3ca76F/2/?force_update=true

Following their official Tutorial repository (which does not compile any more because of outdated dependencies and other issues) I have added some (maybe) opensea-specific functions and data that might required for OpenSea in order to work properly. However, OpenSea is able to grab all required data to display an NFT, but as long as they say "Unidentified contract", this all makes no sense so far.

My question has:

has someone already managed to deploy a ERC-1155 and used it with OpenSea properly without this issue? Is there anything we have to "register" somehow contracts that are not based on ERC-721?

🔢 Code to reproduce ...

ANSWER

Answered 2021-Aug-27 at 22:07

I finally found the root cause! OpenSea expects a public property called name in order to display the proper Name of the Collection instead of a static label Unidentified contract.

I came across this while looking at their reference code (which depends on a now 3-year-old MultiToken-Contract implementation and needs all in all some downgrades of Node and other tools in order to get it build [a downgrade to Node 10 worked best for me today] ).

Source https://stackoverflow.com/questions/68891144

QUESTION

How list or sell item in opensea using python

Asked 2022-Jan-10 at 16:22

I am trying to sell my nft on opensea using python. I could create contract and mint an NFT. I can see the collection and Items in opensea. But how do I sell an item on opensea using python. I can do that on opensea web flow, but having 10k items in a collection, its very difficult to go to each item and sell.

Please help me out if anyone know how to do this using python

This is my contract address link in testnets Click here

I have observed open sea is calling approve method on sell, so I tried that as well, but could not see any updates on opnsea.

This is my collection in opensea testnets Click here

...

ANSWER

Answered 2022-Jan-10 at 05:49

I think there is no API or SDK for python. I could achieve this using opensea-js SDK.

Source https://stackoverflow.com/questions/70629799

QUESTION

How does truffle know which contract I'm referring to?

Asked 2021-Dec-19 at 11:47

After running truffle migrate, I'm able to run (in a console) contract = await MyContractName.deployed(). I haven't tested on mainnet, but I'm able to run this same code on testnets and truffle knows which contract I'm referring to.

How does it know? There must be other contracts named the same as mine, can someone elaborate how Truffle knows which contract I'm referring to?

...

ANSWER

Answered 2021-Dec-19 at 11:47

Your contract is not defined by the name you provided. It is defined by address of the smart contract which will be stored in the build/contracts/{contract-name}.json by truffle after deploying(migrating).The truffle refers this file for the address when you are querying in your console

for more information, check this out http://trufflesuite.com/docs/truffle/getting-started/interacting-with-your-contracts.html

Source https://stackoverflow.com/questions/70407873

QUESTION

Chainlink Commidities [Gold, Silver, Oil] Pricefeeds on Testnet Smart Contracts

Asked 2021-Sep-14 at 01:31

I am testing different ways to get commodity pricefeeds on top of Rinkeby testnet.

One easy working solution is to use Chainlink's GET API function and JSON parse data from "Metals-API" [a pricefeed provider for many different commodities]. That way I can get the data on chain directly.

Alternatively, we can try and use Chainlink's commodity price feeds [https://data.chain.link/ethereum/mainnet/commodities]. The problem is that those price feeds are exclusive to Ethereum Mainnet at the moment. I did a test with Infura where I had two Web3 instances working to get data from Kovan [ETH price] and Ethereum Mainnet [WTI price] at the same time and it worked! I was thinking I could pass data from those two chains into Rinkeby via a Web3 transaction. However, the issue I see with this is that an attacker could pass whatever data to the contract in theory [contract doesn't have a way of knowing what input data is real if someone makes their own Web3 script to fool the contract]. Is there another way to pass data between chains?

Three solutions I see for this are:

Adding more testnet addresses for Chainlink commodity prices to put data on testnets directly. Are there plans to expand more support for testnets along with expanding prices to track commodities beyond gold, silver and oil?
The new Cross-Chain Interoperability Protocol (CCIP). I am having trouble finding more info with examples on how to use this protocol. I sent a submission for "Learn More" on the main CCIP page. Is the protocol not open to the public yet?
Using a web scraper API to GET data from https://data.chain.link/ethereum/mainnet/commodities. Is there an API for Chainlink pricefeeds along all chains [I could not find one]?

...

ANSWER

Answered 2021-Sep-14 at 01:31

I contacted Patrick Collins and he gave me a good answer:

Data feeds are on many chains, see here: https://docs.chain.link/docs/reference-contracts/

CCIP is still being worked on. Its not even ready for beta yet.

You wouldn’t want to use testnet data feeds for production use cases ever. Testnets are supported as a staging instance, and the prices are regularly outdated (since it’s just a testnet and there is no real financial incentive to keep them up to date)"

Edit: Rinkeby OIL, XAU and XAG pricefeeds exist and can be found here https://docs.chain.link/docs/ethereum-addresses/. I made a Youtube video about this, but as the demo shows the values are not for production use https://www.youtube.com/watch?v=cSMWUlRlGZo

Source https://stackoverflow.com/questions/69078223

QUESTION

Figuring out how to mint NFT with delayed release, metadata not validating on opensea

Asked 2021-Jun-25 at 23:00

I have a smart contract working on rinkeby which is minting ERC721 tokens. The goal is to allow minting for a week and then to release the metadata and images after a week has passed.

When I deploy it, I use https://gateway.pinata.cloud/ipfs/ as the baseUri that I feed into the contract.

Next, im simulating a delayed metadata/image release:

After the tokens are minted, I run a curl POST to add the image to IPFS and get its hash.
I then manually pin the image to pinata via UI and create metadata using the pinned image uri.
The image link in the metadata resolves in my browser.
Next, I run a second curl POST to add the JSON metadata to IPFS.
I manually pin the metadata to pinata via UI: https://gateway.pinata.cloud/ipfs/Qmf43nycxRXdwdq3GqT7SKU3MvRyBvbpjzufzZR8ASkMGb
At this point, Opensea shows no image and its metadata cannot validate: https://testnets.opensea.io/assets/0x1b566f6946feeb73e178c63a2992c2365c6cd55f/0 - https://rinkeby-api.opensea.io/asset/0x1b566f6946feeb73e178c63a2992c2365c6cd55f/0/validate/

The image_url metadata property is failing in validation because ipfs links use a hash and im using the integer token value. I cant see to figure out how to bridge this gap since the hash is generated outside of the contract and it looks like the contract is what is generating this link in the metadata.

Could anyone shine a light on my dilemna? Thank you! :D

...

ANSWER

Answered 2021-Jun-25 at 23:00

I was close... all that I was missing was that I needed to run the OpenZeppelin _setTokenURI method for each minted token to accomplish this ...

Source https://stackoverflow.com/questions/68118203

QUESTION

API gives 406 code with Accept application/json request : Bluehost

Asked 2021-May-06 at 22:51

This is the result I get when I try to validate my API.

...

ANSWER

Answered 2021-May-06 at 22:51

I have confirmed that this is because Bluehost actively blocks (by returning this code) requests with Accept:application/json headers. You have to contact Bluehost and ask them to whitelist the IP addresses that you want to be able to access the metadata.

As far as I can tell, they do this because they want to push people to pay for a VPS, because they are assuming this kind of request would go to some kind of robust API that requires significant backend processing.

Source https://stackoverflow.com/questions/67394866

QUESTION

What does LINK_TOKEN_POINTER do

Asked 2021-May-01 at 03:16

I am trying to get chainlink to work on harmony one block chain, I am trying to deploy a testing contract extending chainlinkclient.sol to test out the setup but for some reason it won't deploy. I am wondering if it's because of the LINK_TOKEN_POINTER hardcoded to 0xC89bD4E1632D3A43CB03AAAd5262cbe4038Bc571. Does anyone know what that address is? Is it the same for all the ETH testnets (rinkeby, kovan, etc) and other chains as well?

I am trying to deploy the TestConsumer.sol contract onto the Harmony One chain but am getting an error. I was able to get it to work on Kovan.

I suspect it might be due to the LINK_TOKEN_POINTER. Does anyone know how I can get this to work?

...

ANSWER

Answered 2021-May-01 at 03:16

The LINK_TOKEN_POINTER is a contract that is hard-coded with pointers to the LINK token on various chains. This is so that the contract knows which LINK token to use.

For a chain like harmony, the LINK token pointer probably has not been added for that chain.

To get around this, you'll want to manually set the LINK token, like so:

Source https://stackoverflow.com/questions/67327472

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