SeeleJS is a generic scripting API library for the Seele blockchain.

npm install seele.js

Due to problems with the keccak library, some errors will occur during installation, but if Keccak bindings compilation fail. Pure JS implementation will be used. occurs, it doesn't matter, the package is normal. Follow-up will consider blocking this error.

If the last parameter is not bound to a callback function, the console.log is used by default.

var seelejs = require('seele.js');

var client = new seelejs();
client.getInfo(function(info) {
  if (info instanceof Error){
    console.log("Error")
    console.log(info)
    return
  }

  console.log(info)
});

client.exec("getInfo", console.log);

client.exec("getBlock", "", 1, false, console.log);

client.send("getBlock", "", 1, false, function(info) {
  if (info instanceof Error){
    console.log("Error")
    console.log(info)
    return
  }

  console.log(info)
});

You can pass options to the initialization function or use the default options.

var seelejs = require('seele.js');

function seelejs(host, port, headers, user, password, timeout){
  ...
};

Available options and default values:

• host(String) : A domain name or IP address of the server to issue the request to. Default: localhost.
• port(String) : ort Port of remote server. Default: 8037.
• headers(Object) : An object containing request headers, the format must be [{'name':'', 'vaule':''}, {'name':'', 'vaule':''}...].
• user(String) : Basic authentication i.e. 'user:password' to compute an Authorization header. Not used.
• password(String) : Basic authentication i.e. 'user:password' to compute an Authorization header. Not used.
• timeout(Number) : timeout A number specifying the socket timeout in milliseconds. This will set the timeout before the socket is connected. Default: 30000.

The Seele API is supported as direct methods. Use either camelcase or lowercase.

client.getInfo(function(info) {
  if (info instanceof Error){
    console.log("Error")
    console.log(info)
    return
  }

  console.log(info)
});

Sends the given command with optional arguments. Function callback defaults to console.log. All of the API commands are supported in lowercase or camelcase. Or uppercase. Anycase!

client.send("getBlock", "", 1, false, function(info) {
  if (info instanceof Error){
    console.log("Error")
    console.log(info)
    return
  }

  console.log(info)
});

Sends the given command with optional arguments. This function will return a Promise object, and you can use to handle the result. All of the API commands are supported in lowercase or camelcase. Or uppercase. Anycase!

var task1 = function(result){
    console.log("task1")
    errorTask(result)
    console.log(result)
    return client.sendSync("getInfo")
}

var task2 = function(result){
    console.log("task2")
    errorTask(result)
    console.log(result)
    return result.Coinbase
}

var callback = function(result){
    console.log("callback")
    errorTask(result)
    console.log(result)
}

var errorTask = function(data){
    if (data instanceof Error){
        console.log(data)
        throw data
    }

    return data
}

let promise = client.sendSync("getBlock", "", 1, false)
promise.then(task1).then(task2).then(callback).catch(promise.then(task1).then(task2).then(callback).catch(callback)

Executes the given command with optional arguments. Function callback defaults to console.log. All of the API commands are supported in lowercase or camelcase. Or uppercase. Anycase!

client.exec("getInfo");

client.exec("getInfo", function(info){
  if (info instanceof Error){
    console.log("Error")
    console.log(info)
    return
  }

  console.log(info)
});

Executes the given command with optional arguments. This function will return a Promise object, and you can use to handle the result. All of the API commands are supported in lowercase or camelcase. Or uppercase. Anycase!

let promise = client.execSync("getBlock", "", 1, false)
promise.then(function(info){
  console.log(info);
}).catch(function(err){
  console.log(err);
})

Generate transaction and sign, the rawTx must be in the example format, otherwise an error will occur.

var privatekey = "0x24ce9cadcc9207c94296db166ab7a0fa686f2a6d29f7ea54fe8c22271c40812e"
var rawTx = {
  "From":"0xa61e5b0b30e91c4ae10dda3a6ddeb9d9d35ebfe1",
  "To":"0x0000000000000000000000000000000000000000",
  "Amount":0,
  "AccountNonce":123,
  "GasPrice":1,
  "GasLimit":3000000,
  "Timestamp":0,
  "Payload":""
}

tx = generateTx(privatekey, rawTx)

Filtering transactions for a specific address based on block height, an error occurs if the block height does not exist. If the height is -1, it will filter the current block. When the flag is 1, the transaction from equal to the address is filtered in the block. When the flag is 2, the transaction to equal to the address is filtered in the block.

client.filterBlockTx(123, "0x0000000000000000000000000000000000000000", "1")
client.filterBlockTx(-1, "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21", "2")