Link NFT Collection to Opensea - solidity

Hi super basic question as I am new to NFT dev (currently learning solidity). Looking to make a super basic NFT project with website, art, and link to Opensea in secondary market (no roadmap, just a learning experience for me and probably giving NFTs for free). I understand that you can make a candy machine that allows users to mint on website, but I'd like them to be able to view and trade their nfts on a secondary marketplace like Opensea. How would I go about doing this? Thanks.

After minting nfts, they can be view and trade on Opensea and do not need additional actions.

As stated before, you don't need to do anything to actually have them in Opensea, except to deploy your SC.
I think this could be very useful to you https://buildspace.so/p/mint-nft-collection if you are just beginning and new. It's a well explained tutorial, and you can see there how this would work for you to see it in opensea.
Hope that helps.

Related

How to create a crypto hot wallet that can be integrated into a website to allow deposit and withdraws

I would like guides and directions of where to start, resources I can use to understand the topic better. The deposit and withdraw system would be very similar to crypto exchanges where the user will have their own addresses to deposit different cryptos and can withdraw them.
Have you tried the BSV library. Albeit for safer non custodial wallets. But this does not mean to say you cannot integrate that with cloud apps.
It's done superbly by Handcash already.
There's excellent support docs and tutorials using live main and test net addresses at Satolearn and BSV Academy.

How can I add a burn function to a BSC smart contract?

University is out for summer and I am attempting to develop a smart contract on binance smart chain.
I have followed a youtube tutorial and made a very basic token which allows buys and sells, however I would like to add a burn function i.e a tax is placed on every transaction, and I would like x% to be added to liquidity on pancakeswap, x% to be burned and x% to be redistributed to holders of my token.
The internet seems to be pretty scarce on information on how to implement this, so if anyone would mind giving me a hand it would be great!
I am creating the token on remix.ethereum.org

What happens when you 'create' an item on the OpenSea app?

Very noobie here. I'm sorry,
Does anybody know what happens on OpenSea when you actually CREATE an item?
I know it doesn't mint one but what it does? (As it signs a transaction tho).
I've been trying for weeks to understand the "gasless" proxy thing they have but I don't know how they actually transfer an NFT to your Wallet, even if it's not minted.
I also managed to deploy and mint a Creature with the example contract (open sea creatures, https://github.com/ProjectOpenSea/opensea-creatures) but how can I let Users mint their own item on this factory contract?

Wechat : does an SDK / API exists?

I'm online on wechat (an instant messenger, not to be confused with weechat, that is an IRC client) and following a lot of groups for work. I'm searching for an SDK, an API set, to be able to automitize info collecting from groups and or individuals.
But i'm not aware of any way to do it.
Please, this is NOT an 'opinion' question, I'm litterally asking you if you know a way to receive data from weechat, because I cannot find it.
I see the area on weechat website where a company can ask for accces to API, but, really I cannot find other tools.
Edit 1: Chinese DOC, I think: https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&id=open1419318183&token=&lang=zh_CN
Edit 2: Chinese DOC more similar to a JS api :http://work.weixin.qq.com/api/doc#10029/%E5%A4%96%E9%83%A8%E8%81%94%E7%B3%BB%E4%BA%BA%E9%80%89%E4%BA%BA%E6%8E%A5%E5%8F%A3
Obviously, use google translator !
As from my OP, there are some docs, official docs, but the real problem is that to create even a simply Mini Program, we need to subscribe (paid) and also paying at one point a chinese-only page asks by country and the list simply does not include Italy, so I simply cannot subscribe.

Bitcoin Api (only found 1)

I need to use a bitcoin api, and only have found CoinBox. The problem is that coinbox is limited to only a few sites and isnt open to everyone so I cant use it. Are there any good alternatives to coinbox.me? Thanks.
There are actually quite a few apis. First there is coinbase which is my favorite since they pay the transaction fees for transactions over 0.001 BTC and all internal transactions are absolutely free (and instant). You can see their api. (https://coinbase.com/docs/api/overview). What they lack is that it is hard to grab the TX id's and any other specific information. There is also blockchain.info which is the most feature full, but the downside is that you have to pay all of the fees and it can get to be very expensive. You can see the api. (https://blockchain.info/api). There are a lot more but the problem is that they are very buggy. I hope this helps!
It is not necessary to use web wallets to create addresses. You can install your own bitcoin server/daemon and act like your own bank.
This is the place to start if you want to know how to do it (https://en.bitcoin.it/wiki/Main_Page).
Bitcoin can be queried using JSON RPC methods. So if you are running a bitcoin daemon locally you can just query them. The documentation for the same is located at
Running Bitcoin - https://en.bitcoin.it/wiki/Running_Bitcoin
API Reference - https://en.bitcoin.it/wiki/API_reference_(JSON-RPC)
API Call List - https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_calls_list
Hope this helps.