Send fund from one contract to another ethereum
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Transactions are sent from and received by user-created Ethereum accounts. A sender must sign transactions and spend Ether, Ethereum's native cryptocurrency, as. Smart contracts can be used to exchange money, property, shares, data, or anything of real value while remaining decentralized and transparent. The contract. In other words, most Ethereum contracts out there today are ERCcompliant. to find out a user's balance and transfer funds from one user to another. GOLD WEEKLY FUNDAMENTAL ANALYSIS FOREX
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You should get an error. Which means it needs to be signed with our Private Key that is stored in the Keystore. In order to decrypt the key, we must provide a password, or in other words, unlock the account.
Execute the following command to unlock your account for the next 60s, and execute the sendTransaction command once again. But this way is safer as your password is only in a buffer and not stored in any log or visible on the screen. This time the command succeeded, and a Transaction hash receipt was returned!
You don't need to know anything about solidity or smart contracts in order to follow up with this tutorial as this is beginner friendly, and I try my best to explain every line of code as I write them. Writing a smart contract In order to get started, you have to jump over to this website known as Remix Ethereum. The below is a screenshot of the interface of a website you might get some annoying pop-ups so just hit the decline or accept button to get in.
Once we are here, head over to the left sidebar and locate the file icon. Click on it and it should pull up a makeshift file manager. Locate the contract folder and click on it. Just right above the contract folder you should see a file icon at the very top just beside the folder icon.
Click on it and it should generate a fresh file which you can name anything. But in this case, I'm going to name it sendEther. Write the below on the first line of your solidity file. SPDX allows the expression of components, licenses, copyrights, security references and other metadata relating to software. You can read more about this here. Next, let's define the version of Solidity we are going to use by writing the below. Ps: Solidity is a strongly typed compiled language so the semi colons are necessary.
Let's write a smart contract by using the Contract keyword like below. It's kind of conventional to capitalize the contract identifier. It can be any name you want, doesn't matter. This smart contract is going to be needing two state variables named amount for holding the amount to be sent and the owner address. Write the below inside your already defined contract body.
It actually means unsigned integer no negatives say ,nah we don't do that here Some other Solidity datatypes include bool, struct, mapping, string, address… address payable owner; Since we are sending ether from our Ethereum address we need to add the "payable" keyword right before our identifier. Now, let's write the constructor just below our state variables. Let's say for example you want instantiate say a name variable during deployment, you do that in the constructor.
Then we cast the msg. This might be confusing tho, I will clear the air once we get to the deployment stage so you can see it for yourself. Your file right now should contain the below. Any address sent in to this function should be able to receive funds payable. Also, since the function allows one to be able to send ether to another account we need to add the payable keyword to it. Now, add the below statement into the function body.
That means an outsider with a different Ethereum address can't send funds by calling this function.
Send fund from one contract to another ethereum native american cryptocurrencySolidity Tutorial: Sending Ether FROM a smart contract to another contract / address
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