unwriter / datapay Goto Github PK

i'm not able to start datapay app and also there is no instruction given to run the script.
please specify which setting needed ?

Hi I am new to using this library. Managed to figure things out from youtube tutorials, but wanted to add what I thought was missing from the current documentation:

• For beginners: linking resources on how to obtain a private key and add funds if they have never used datapay or moneybutton before.
• For developers: more examples of the send callback function so devs can see what type of data they are receiving

https://github.com/unwriter/datapay/blob/master/README.md#a-sending-from-data-and-pay

The code example under A. Sending from data and pay, currently is this:

const tx = {
  safe: true,
  data: ["0x6d02", "hello world"])
  pay: { key: "5JZ4RXH4MoXpaUQMcJHo8DxhZtkf5U5VnYd9zZH8BRKZuAbxZEw" }
}
datapay.send(tx, function(err, res) {
  console.log(res)
})

It's missing some commas and unnecessary parenthesis.

It should be this:

const tx = {
  safe: true,
  data: ["0x6d02", "hello world"],
  pay: { key: "5JZ4RXH4MoXpaUQMcJHo8DxhZtkf5U5VnYd9zZH8BRKZuAbxZEw" }
}
datapay.send(tx, function(err, res) {
  console.log(res)
})

By default datapay uses all UTXOs when building a TX. When using datapay to send multiple large data transactions, users will very quickly hit either the 25 chained mempool tx limit or the 100k mempool bytes limit.

I have recently solved this problem in libitx/preserve-cli@e6598ec4 and the approach I used there comes in two parts:

1. UTXOs are sorted so that confirmed TX are listed first (by default the insight api lists the UTXO in an unpredictable order, but often unconfirmed outputs come first).
   https://github.com/libitx/preserve-cli/blob/master/lib/bitindex.js#L18-L25
2. Building the tx needs to be arranged in such a way that all the outputs are defined first, and then iterate over the sorted UTXO and one-by-one keep adding an input and re-estimate the fee until the sum of the inputs exceeds the sum of outputs plus fee.
   https://github.com/libitx/preserve-cli/blob/master/lib/commands/deploy.js#L146-L152

Datapay already has a filter option but unfortunately the bsv.Transaction.UnspentOutput objects from getUnspentUtxos don't provide very useful properties with which to filter by. For example, it's not possible to filter by confirmations.

I think bitcore-explorers will need to be replaced with a built-in bitindex client so the raw response from bitindex (which does include a confirmations property) can be sorted/filtered. This isn't a terribly hard thing to do, but it's going to break existing APIs (datapay.connect()) so I didn't just went to fire over a PR.

Opening this issue to discuss options.

I start a Full Node Bitcoin, in the testnet, but when i use my node in testnet, i recive, only errors!!!

in this moment api.bitindex.network don't respond, have another option for replace api.bitindex.network

1. If I use default pay.rpc for datapay.send, the rpc fails with error
   
   PayloadTooLargeError: request entity too large at readStream (/home/bchsv/prod-2/node_modules/raw-body/index.js:155:17) at getRawBody (/home/bchsv/prod-2/node_modules/raw-body/index.js:108:12) at read (/home/bchsv/prod-2/node_modules/body-parser/lib/read.js:77:3) at jsonParser (/home/bchsv/prod-2/node_modules/body-parser/lib/types/json.js:135:5) at Layer.handle [as handle_request] (/home/bchsv/prod-2/node_modules/express/lib/router/layer.js:95:5) at trim_prefix (/home/bchsv/prod-2/node_modules/express/lib/router/index.js:317:13) at /home/bchsv/prod-2/node_modules/express/lib/router/index.js:284:7 at Function.process_params (/home/bchsv/prod-2/node_modules/express/lib/router/index.js:335:12) at next (/home/bchsv/prod-2/node_modules/express/lib/router/index.js:275:10) at expressInit (/home/bchsv/prod-2/node_modules/express/lib/middleware/init.js:40:5)

2. if I use my own pay.rpc for datapay.send
   
   datapay fails with error returning only NodeError

3. If I use default pay.rpc for datapay.build there is no error from rpc
   
   but then I need to http send builded tx via my node rpc, and tx gets through successfully
   a80a0a2afc0ba2f76914b26ed98fd9db3e0aedbe3c399c6e3e157f126315332e

my node is available under bitcoinsv.si

if one would like to try directly with node rpc, I can give user & pass.

The datapay docs detail an example of broadcasting a transaction to the network, however, they explicitly define bitindex and implicitly suggest memo.cash.

Can users of this library get more control over how they broadcast?
As a merchant we may want to broadcast to as many networks/miners as we possibly can, as quick as we can.

What are our options here?

Thanks.

Hi,

I am trying to send image in hash format with dataPay.send example but receive an error:

code: 1,
message: 'the transaction was rejected by network rules.\n' +
'\n' +
'66: insufficient priority\n' +

I create transaction with:

const tx = this.createTx(message);
dataPay.send(tx, (err: object, res: string) => {
       if (err) {
            return reject(err);
       }
       return resolve(res);
});

private createTx(message: Buffer): TxTransaction {
        const bufferInHex = message.toString('hex');
        return {
            safe: true,
            data: [bufferInHex],
            pay: {
                key: this.privateKey,
                rpc: this.rpcApi, // 600
                fee: this.rpcFee, // https://api.mattercloud.net
            },
        };
    }

Any hint?

Thank you.

Is there any way to host a website on bitcoin SV blockchain? I saw somewhere, that there is a method to host a simple html page in bitcoin SV transaction.
How i can do that withoud 3rd party service. I mean i want to create transaction with html file in it.