Deploy to Testchain¶

Step 1: Create account on Testchain¶

The Faucet bot helps you with getting set up and creating an account with some tokens in it. With the help of this bot you will get the following data about your testnet account:

Account name;
Public and private keys to be able to create transactions.

Step 2: Import Private Key to Wallet¶

After account creation, import the private key generated by the Faucet bot.

$ remcli wallet import

Then, paste your private key.

Step 3: Create Contract Account¶

Note

To get new tokens on Testchain you should click on Faucet bot Request a new batch of tokens. This is necessary to create an contract account.

To create new account on Testchain use remcli sysytem newaccount:

Usage: remcli system newaccount [OPTIONS] creator name OwnerKey [ActiveKey]

Positionals:

`-creator`	The name of the account creating the new account (required)
`-name`	The name of the new account (required)
`-OwnerKey`	The owner public key or permission level for the new account (required)
`-ActiveKey`	The active public key or permission level for the new account

Options:

-h,--help                   Print this help message and exit
--stake TEXT                The amount of tokens delegated for resources (required)
--transfer                  Transfer voting power and right to unstake tokens to receiver
-x,--expiration             set the time in seconds before a transaction expires, defaults to 30s
-f,--force-unique           force the transaction to be unique. this will consume extra bandwidth and remove any protections against accidently issuing the same transaction multiple times
-s,--skip-sign              Specify if unlocked wallet keys should be used to sign transaction
-j,--json                   print result as json
--json-file TEXT            save result in json format into a file
-d,--dont-broadcast         don't broadcast transaction to the network (just print to stdout)
--return-packed             used in conjunction with --dont-broadcast to get the packed transaction
-r,--ref-block TEXT         set the reference block num or block id used for TAPOS (Transaction as Proof-of-Stake)
--use-old-rpc               use old RPC push_transaction, rather than new RPC send_transaction
-p,--permission TEXT ...    An account and permission level to authorize, as in '[email protected]' (defaults to '[email protected]')
--max-cpu-usage-ms UINT     set an upper limit on the milliseconds of cpu usage budget, for the execution of the transaction (defaults to 0 which means no limit)
--max-net-usage UINT        set an upper limit on the net usage budget, in bytes, for the transaction (defaults to 0 which means no limit)
--delay-sec UINT            set the delay_sec seconds, defaults to 0s

First, create a new key pair:

$ remclit create key --to-console

Then import them:

$ remclit wallet import

Note

Before creating a contract account, unlock your wallet.

Let’s create a contract account and stake 1000.0000 REM:

$ remcli -u https://testchain.remme.io/ system newaccount CREATOR namevalidatr PUBLIC_KEY --stake "1000.0000 REM" --transfer

`-u`	this is a flag that indicates the address of the node to which your transaction will be sent.

It will return something like:

executed transaction: c539757d67b1b789ae476251c73835b90d2778c02ab4ad43239b6bca518716b8  264 bytes  1846 us
#           rem <= rem::newaccount              {"creator":"remproducer2","name":"namevalidatr","owner":{"threshold":1,"keys":[{"key":"EOS6QRD67S2qR...
#           rem <= rem::delegatebw              {"from":"remproducer2","receiver":"namevalidatr","stake_quantity":"1000.0000 REM","transfer":1}
#     rem.token <= rem.token::transfer          {"from":"remproducer2","to":"rem.stake","quantity":"1000.0000 REM","memo":"stake bandwidth"}
#  remproducer2 <= rem.token::transfer          {"from":"remproducer2","to":"rem.stake","quantity":"1000.0000 REM","memo":"stake bandwidth"}
#     rem.stake <= rem.token::transfer          {"from":"remproducer2","to":"rem.stake","quantity":"1000.0000 REM","memo":"stake bandwidth"}

Warning

Name namevalidatr may already be taken on Testchain. You can choose any free name that matches these rules:

Can only contain the characters .abcdefghijklmnopqrstuvwxyz12345. a-z (lowercase), 1-5 and . (period)
Must start with a letter
Must be 12 characters

Step 3: Deploy Smart Contract to Testchain¶

Note

There is no need to run a full node to develop smart contracts; it is enough to know the address of one of the network nodes. Information about the Remprotocol Testnet services we have already indicated here.

We will use the previously created contract name_validator.

Go to your contract directory and then:

$ cd build

Let’s deploy a name_validator contract to Testchain:

$ remcli -u https://testchain.remme.io/ set contract namevalidatr name_validator

It will return something like:

Publishing contract...
executed transaction: b2123a1eae99ca2f926ae8d99c3fc7c5b815f185a48cbac9738de904ba851a00  2624 bytes  960 us
#           rem <= rem::setcode                 {"account":"namevalidatr","vmtype":0,"vmversion":0,"code":"0061736d0100000001641260000060017e017f600...
#           rem <= rem::setabi                  {"account":"namevalidatr","abi":"0e656f73696f3a3a6162692f312e3100010c76616c69646174656e616d650001087...

Now, test it:

$ remcli -u https://testchain.remme.io/ push action namevalidatr validatename '["newaccount12"]' -p namevalidatr

It will return something like:

executed transaction: 77133a37a08649131a1e7df74e0507198b6e83dd1a906f7ddf2baf88d4c4d4c9  112 bytes  340 us
#  namevalidatr <= namevalidatr::validatename   {"username":"newaccount12"}

Tip

To not write remcli -u https://testchain.remme.io/ .. each time, you can add an alias alias remclit='remcli -u https://testchain.remme.io/' to bashrc.