Timeline for How to use the scale decoder to parse extrinsics?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 18, 2022 at 13:26 | comment | added | Andy | （ String two = ten.toString(2); ） The result is binary | |
| May 18, 2022 at 10:06 | comment | added | Squirrel |
replace needs to be turned into bin from the hex string encoding that it is whereas you're trying to read it as a big integer. After the 0x there's 28 - that's 2x16 + 8 which is the byte 40 (a u8 in rust speak). You need to call Convert.FromHexString(replace) to get the scale binary and then you can decode that.
|
|
| May 18, 2022 at 9:26 | comment | added | Andy | The result is still wrong. The correct result should be 1651825968. What went wrong? | |
| May 18, 2022 at 9:25 | comment | added | Andy | public static void main(String[] args) { //TODO // Correct result: 1651825968 UInt32Reader reader = new UInt32Reader(); String str = "0x280402000b919bbc3b8001"; String replace = str.replace("0x", ""); BigInteger ten = new BigInteger(replace, 16); String two = ten.toString(2); ScaleCodecReader codec = new ScaleCodecReader(two.getBytes()); codec.hasNext(); Long read = codec.read(reader); System.out.println("timestamp:"+read); } | |
| May 18, 2022 at 8:40 | comment | added | Squirrel | But that's all hard mode stuff. Desub might help you as strong typing probably isn't your friend here. Maybe the easier route might be to call sidecar rest urls for the data you need - that gives json back: paritytech.github.io/substrate-api-sidecar/dist | |
| May 18, 2022 at 8:30 | history | answered | Squirrel | CC BY-SA 4.0 |