Deploy & Run
============
The Deploy & Run module allows you to send transactions to the current environment.
To get to the Run & Deploy module - click the run icon in the icon panel.
In order to use this module you need to have a contract compiled. So, if there is a contract name in the contract select box (in the image below it's the pulldown that says **Ballot** ), then you can interact with this contract. If nothing is there - then you need to select a contract. And you do that by clicking the file in the editor panel to make it the active tab ( in the image below - on the right side of the page - in the main panel - you see the ballot.sol so it is the active contract). Once its active, then go to the compiler module and compile it. Then come back to Deploy & Run.
Run Setup
---------
The following settings allow you to directly influence the transaction
execution:
**Environment:**
- `JavaScript VM` : All the transactions will be executed in
a sandbox blockchain in the browser. This means nothing
will be persisted when you reload the page. The JsVM is its own blockchain and on each reload it will start a new blockchain, the old one will not be saved.
- `Injected Provider` : Remix will connect to an injected
web3 provider. `Metamask` is an example of a
provider that inject web3.
- `Web3 Provider` : Remix will connect to a remote node. You will need to provide the URL to the selected provider: geth, parity or any Ethereum client.
**Account:**
- Account: the list of accounts associated with the current
environment (and their associated balances). On the JsVM, you have a choice of 5 accounts. If using Injected Web3 with MetaMask, you need to change the account in MetaMask.
**Gas Limit:**
- This sets the maximum amount of gas that will be allowed for all the
transactions created in Remix.
**Value:**
- This sets the amount of ETH, WEI, GWEI etc that is sent to a contract or a payable function. ( Note: payable functions have a red button). The value is always reset to 0 after each transaction execution).
Initiate Instance
-----------------
- In the image above the select box is set to Ballot. This select box will contain the list of compiled contracts.
- `Deploy` send a transaction that deploys the selected contract. When
the transaction is mined, the newly created instance will be added
(this might take several seconds). Note that if the `constructor`
has parameters, you need to specify them.
- `At Address` this is used at access a contract that has already been deployed. It assumes that the given address is an instance of the selected contract. **Note:** There's no check at this point, so be careful when using this feature, and be sure you trust the contract at that address.
Pending Instances
-----------------
Validating a transaction takes several seconds. During this time, the GUI
shows it in a pending mode. When the transaction is mined the number of
pending transactions is updated and the transaction is added to the log
([see terminal](terminal.html)).
Using the ABI
------------
Using `Deploy` or `At Address` is a classic use case of Remix. However, it is
possible to interact with a contract by using its ABI. The ABI is
a JSON array which describe its interface.
To interact with a contract using the ABI, create a new file in Remix
with extension `*.abi` and copy the ABI content to it. Then, in the input
next to `At Address` , put the Address of the contract you want to
interact with. Click on `At Address` , a new "connection" with the
contract will popup below.
Using the Recorder
------------------
The Recorder allows to you to save a bunch of transactions in a JSON file and
rerun them later either in the same environment or in another.
You can also update the file adjust the transaction list, tweak input
parameters, change linked library, etc...
There are many use cases for the recorder, for instance:
- After having coded and tested contracts in a constrained
environment (like the JavaScript VM), you can easily
redeploy them in a more persisted environment (like a
Geth node) in order to check whether everything behaves normally
in a classic environment.
- Deploying contract does often require more than creating one
transaction. ( **note: is this point needed?** )
- Working in a dev environment often requires setting up the
state in a first place. ( **note: is this saying - After testing in on the JsVM, quickly deploying another environment in a controlled fashion. ** )
To save some transactions click on the floppy disc icon. A file called senario.json will be written and saved in the file explorer.
Below is an example of this file where 3 transactions are executed:
The first corresponds to the deployment of the lib `testLib` .
The second corresponds to the deployment of the contract `test` with the
first parameter of the constructor set to 11. That contract depends
on a library. The linkage is done using the property `linkReferences` .
In that case we use the address of the previously created library :
`created{1512830014773}` . The number is the id (timestamp) of the
transaction that led to the creation of the library.
The third record corresponds to the call to the function `set` of the
contract `test` (the property to is set to: `created{1512830015080}` ) .
Input parameters are `1` and
`0xca35b7d915458ef540ade6068dfe2f44e8fa733c`
All these transactions are created using the value of the accounts
`account{0}` .
```
{.sourceCode .none}
{
"accounts": {
"account{0}": "0xca35b7d915458ef540ade6068dfe2f44e8fa733c"
},
"linkReferences": {
"testLib": "created{1512830014773}"
},
"transactions": [
{
"timestamp": 1512830014773,
"record": {
"value": "0",
"parameters": [],
"abi": "0xbc36789e7a1e281436464229828f817d6612f7b477d66591ff96a9e064bcc98a",
"contractName": "testLib",
"bytecode": "60606040523415600e57600080fd5b60968061001c6000396000f300606060405260043610603f576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff1680636d4ce63c146044575b600080fd5b604a6060565b6040518082815260200191505060405180910390f35b6000610d809050905600a165627a7a7230582022d123b15248b8176151f8d45c2dc132063bcc9bb8d5cd652aea7efae362c8050029",
"linkReferences": {},
"type": "constructor",
"from": "account{0}"
}
},
{
"timestamp": 1512830015080,
"record": {
"value": "100",
"parameters": [
11
],
"abi": "0xc41589e7559804ea4a2080dad19d876a024ccb05117835447d72ce08c1d020ec",
"contractName": "test",
"bytecode": "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__browser/ballot.sol:testLib____________636d4ce63c6000604051602001526040518163ffffffff167c010000000000000000000000000000000000000000000000000000000002815260040160206040518083038186803b151561022e57600080fd5b6102c65a03f4151561023f57600080fd5b505050604051805190509050905600a165627a7a72305820e0b2510bb2890a0334bfe5613d96db3e72442e63b514cdeaee8fc2c6bbd19d3a0029",
"linkReferences": {
"browser/ballot.sol": {
"testLib": [
{
"length": 20,
"start": 511
}
]
}
},
"name": "",
"type": "constructor",
"from": "account{0}"
}
},
{
"timestamp": 1512830034180,
"record": {
"value": "1000000000000000000",
"parameters": [
1,
"0xca35b7d915458ef540ade6068dfe2f44e8fa733c"
],
"to": "created{1512830015080}",
"abi": "0xc41589e7559804ea4a2080dad19d876a024ccb05117835447d72ce08c1d020ec",
"name": "set",
"type": "function",
"from": "account{0}"
}
}
],
"abis": {
"0xbc36789e7a1e281436464229828f817d6612f7b477d66591ff96a9e064bcc98a": [
{
"constant": true,
"inputs": [],
"name": "get",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
}
],
"0xc41589e7559804ea4a2080dad19d876a024ccb05117835447d72ce08c1d020ec": [
{
"constant": true,
"inputs": [],
"name": "getInt",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
},
{
"constant": true,
"inputs": [],
"name": "getFromLib",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
},
{
"constant": true,
"inputs": [],
"name": "getAddress",
"outputs": [
{
"name": "",
"type": "address"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
},
{
"constant": false,
"inputs": [
{
"name": "_t",
"type": "uint256"
},
{
"name": "_add",
"type": "address"
}
],
"name": "set",
"outputs": [],
"payable": true,
"stateMutability": "payable",
"type": "function"
},
{
"inputs": [
{
"name": "_r",
"type": "uint256"
}
],
"payable": true,
"stateMutability": "payable",
"type": "constructor"
}
]
}
}
```
