Cannot create a transaction

I am trying to create a transaction on the bitcoin testnet, using bitcore:

Error Message :

SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data

Here is my code:

var transaction = new bitcore.Transaction()
.from({"address":"msxGdsTJJYu7YrmkV4sbHNK8Z21pHFZ2gX","txid":"0c0d9ad92f07e774a76194823a92bf2521aa57381ad4782becf20fdf385e1922","vout":0,"scriptPubKey":"76a914886b382436985b195d1dfcdb00c722c1f2fcd0ea88ac","amount":0.01})
.to('mjsVogqLetdUjT9raJY6WgYmy3tifJ3DJz', 20000)
.sign('0497427ad1b6177fe950758f10151ba38a6b38d44577ba45fb06423143bb55a2')
.change('mhCpGNNHQmu4P9pUZcCmgXkxbYxys5pKBw')

<Transaction: 010000000122195e38df0ff2ec2b78d41a3857aa2125bf923a829461a774e7072fd99a0d0c0000000000ffffffff02204e0000000000001976a9142fc320597ba67a66167721bc9c36d987e03c225b88ac10cd0e00000000001976a91412820fdb8340e5198b3c31de5688faa7927b0d7188ac00000000>

transaction.serialize()
010000000122195e38df0ff2ec2b78d41a3857aa2125bf923a829461a774e7072fd99a0d0c0000000000ffffffff02204e0000000000001976a9142fc320597ba67a66167721bc9c36d987e03c225b88ac10cd0e00000000001976a91412820fdb8340e5198b3c31de5688faa7927b0d7188ac00000000

>> var Insight = require('bitcore-explorers')
[object Object]
>> var client = new Insight.Insight()
[object Object]
>> client.broadcast(transaction, function(err, txId) { console.log('Id:', txId, err);})
undefined
Id: undefined SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data

When I try to broadcast this transaction using BlockCypher, the error message is :

Error validating transaction: Rejected script for input 0 referencing 0c0d9ad92f07e774a76194823a92bf2521aa57381ad4782becf20fdf385e1922 at 0.

Any help is highly appreciated!

Kang

Posted 2015-04-19T01:03:38.583

Reputation: 440

I checked your JSON and it is valid. What is the value of txId? – Scott – 2015-04-19T02:08:35.487

Are you allowed to set the change address after signing? The example they give has signing after setting the change address. https://github.com/bitpay/bitcore-explorers/blob/0307f233ab702bc796bfcd5fa4c62e6e66352751/test/insight.js#L119 Also, I looked at the deserialized transaction in https://blockchain.info/decode-tx and it's not signed.

– Nick ODell – 2015-04-19T08:36:14.390

txId is returned undefined, and an error instead. Also I tried signing later, still doesn't work. The privateKey in WIF is also pasted above. Could you guys, please try running the above code in bitcore playground, would only take seconds? – Kang – 2015-04-19T08:49:14.550

@Kang Sorry, didn't notice that link before. Shouldn't you be passing a private key to sign()? https://github.com/bitpay/bitcore/blob/f268298f253973e68cd833f69e52b0b4d96be1d1/lib/transaction/transaction.js#L889

– Nick ODell – 2015-04-19T09:29:37.447

But that is, the private key in WIF.. – Kang – 2015-04-19T10:04:56.510

@Kang usually the private key is provided as its SEC (hex) value, in things like pybitcointools. In fact, the only apps I know that use WIF are bitcoincore. Also, it's possible that a compressed WIF is not acceptable. – Wizard Of Ozzie – 2015-04-19T10:29:18.023

Both of these don't work : "privateKeyWIF":"91cwRvVzogxM7s4JJzCZZVzTfBfQv9Mjq2nSD4z12kq5q2mwzns","privateKeyHex":"0497427ad1b6177fe950758f10151ba38a6b38d44577ba45fb06423143bb55a2" – Kang – 2015-04-19T11:56:28.763

SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data suggests your JSON data needs to be an array, [ { } ] – Wizard Of Ozzie – 2015-04-21T08:54:27.670

I thought so, but even that doesn't work. Could you please try it out at bitcore playground? Just saying because I tried all permutations I could imagine. – Kang – 2015-04-24T07:46:20.677

Cannot create a transaction

Answers