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1

I want to create a smart contract that users can send a number to and receive an amount of ether.

function airdrop(uint val) public payable 
 require(airdrop == true);
 if (val == 0x31)
 msg.sender.transfer(1 ether); 
 airdrop = false;
 

If users send a 1 they get the ether. How can I do this?

solidity contract-development dapp-development contract-debugging accounts

share|improve this question

edited 8 hours ago

shane

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PhashPhash

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add a comment | 

1

I want to create a smart contract that users can send a number to and receive an amount of ether.

function airdrop(uint val) public payable 
 require(airdrop == true);
 if (val == 0x31)
 msg.sender.transfer(1 ether); 
 airdrop = false;
 

If users send a 1 they get the ether. How can I do this?

solidity contract-development dapp-development contract-debugging accounts

share|improve this question

edited 8 hours ago

shane

3,48944 gold badges1111 silver badges3232 bronze badges

asked 8 hours ago

PhashPhash

10633 bronze badges

New contributor

Phash is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

I want to create a smart contract that users can send a number to and receive an amount of ether.

function airdrop(uint val) public payable 
 require(airdrop == true);
 if (val == 0x31)
 msg.sender.transfer(1 ether); 
 airdrop = false;
 

If users send a 1 they get the ether. How can I do this?

solidity contract-development dapp-development contract-debugging accounts

share|improve this question

edited 8 hours ago

shane

3,48944 gold badges1111 silver badges3232 bronze badges

asked 8 hours ago

PhashPhash

10633 bronze badges

New contributor

Phash is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

function airdrop(uint val) public payable 
 require(airdrop == true);
 if (val == 0x31)
 msg.sender.transfer(1 ether); 
 airdrop = false;
 

share|improve this question

edited 8 hours ago

shane

3,48944 gold badges1111 silver badges3232 bronze badges

asked 8 hours ago

PhashPhash

10633 bronze badges

New contributor

Phash is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 8 hours ago

shane

3,48944 gold badges1111 silver badges3232 bronze badges

asked 8 hours ago

PhashPhash

10633 bronze badges

New contributor

Phash is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 8 hours ago

shane

3,48944 gold badges1111 silver badges3232 bronze badges

edited 8 hours ago

shane

3,48944 gold badges1111 silver badges3232 bronze badges

asked 8 hours ago

PhashPhash

10633 bronze badges

New contributor

Phash is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 8 hours ago

PhashPhash

10633 bronze badges

1 Answer
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1

You can simply check val as a uint. Your code would look as follows:

function airdrop(uint val) public payable 
 require(airdrop == true);
 if (val == 1)
 msg.sender.transfer(1 ether); 
 airdrop = false;
 
 

share|improve this answer

answered 8 hours ago

shaneshane

3,48944 gold badges1111 silver badges3232 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  and how can I send the value? I need it as hex - is it just calling the contract with data = 0x31?
  
  – Phash
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Send the value in ETH? You can simply do msg.sender.transfer(val ether);
  
  – shane
  8 hours ago
  

  
  
  
  

add a comment | 

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1

You can simply check val as a uint. Your code would look as follows:

function airdrop(uint val) public payable 
 require(airdrop == true);
 if (val == 1)
 msg.sender.transfer(1 ether); 
 airdrop = false;
 
 

share|improve this answer

answered 8 hours ago

shaneshane

3,48944 gold badges1111 silver badges3232 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  and how can I send the value? I need it as hex - is it just calling the contract with data = 0x31?
  
  – Phash
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Send the value in ETH? You can simply do msg.sender.transfer(val ether);
  
  – shane
  8 hours ago
  

  
  
  
  

add a comment | 

1

You can simply check val as a uint. Your code would look as follows:

function airdrop(uint val) public payable 
 require(airdrop == true);
 if (val == 1)
 msg.sender.transfer(1 ether); 
 airdrop = false;
 
 

share|improve this answer

answered 8 hours ago

shaneshane

3,48944 gold badges1111 silver badges3232 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  and how can I send the value? I need it as hex - is it just calling the contract with data = 0x31?
  
  – Phash
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Send the value in ETH? You can simply do msg.sender.transfer(val ether);
  
  – shane
  8 hours ago
  

  
  
  
  

add a comment | 

You can simply check val as a uint. Your code would look as follows:

function airdrop(uint val) public payable 
 require(airdrop == true);
 if (val == 1)
 msg.sender.transfer(1 ether); 
 airdrop = false;
 
 

share|improve this answer

answered 8 hours ago

shaneshane

3,48944 gold badges1111 silver badges3232 bronze badges

function airdrop(uint val) public payable 
 require(airdrop == true);
 if (val == 1)
 msg.sender.transfer(1 ether); 
 airdrop = false;
 
 

share|improve this answer

answered 8 hours ago

shaneshane

3,48944 gold badges1111 silver badges3232 bronze badges

answered 8 hours ago

shaneshane

3,48944 gold badges1111 silver badges3232 bronze badges

answered 8 hours ago

shaneshane

3,48944 gold badges1111 silver badges3232 bronze badges