amino-js
Supported in Node.js and browsers.
Support is planned for Service Workers.
Demo
Documentation
https://cosmos.github.io/amino-js/
All exported functions are documented. Some Amino registered TypeScript interfaces are documented. The codec works as is, but we'll work on adding more TS definitions to improve the developer experience.
Install
Please note that the NPM package name is @tendermint/amino-js rather than @cosmos/amino-js.
Yarn
yarn add @tendermint/amino-jsNPM
npm install --save @tendermint/amino-jsUsage
Encoding decoding of basic values:
import { encodeString, decodeString } from '@tendermint/amino-js';
decodeString(encodeString('hello world'));
// [ "hello world", 12 ]Encoding/decoding of registered types:
import { marshalTx, unmarshalTx } from '@tendermint/amino-js';
const tx = {
'type': 'auth/StdTx',
'value': {
'msg': [{
'type': 'cosmos-sdk/MsgSend',
'value': {
'from_address': 'cosmos1h806c7khnvmjlywdrkdgk2vrayy2mmvf9rxk2r',
'to_address': 'cosmos1z7g5w84ynmjyg0kqpahdjqpj7yq34v3suckp0e',
'amount': [{
'denom': 'uatom',
'amount': '11657995'
}]
}
}],
'fee': {
'amount': [{
'denom': 'uatom',
'amount': '5000'
}],
'gas': '200000'
},
'signatures': [{
'pub_key': {
'type': 'tendermint/PubKeySecp256k1',
'value': 'AtQaCqFnshaZQp6rIkvAPyzThvCvXSDO+9AzbxVErqJP'
},
'signature': '1nUcIH0CLT0/nQ0mBTDrT6kMG20NY/PsH7P2gc4bpYNGLEYjBmdWevXUJouSE/9A/60QG9cYeqyTe5kFDeIPxQ=='
}],
'memo': '1122672754'
}
};
const encodedTx = marshalTx(tx);
const decodedTx = unmarshalTx(encodedTx);Register custom types
To register your own types with Amino, you'll need to add Go structs and interfaces, register them with the codec, compile the Go code with GopherJS, and then rebuild the JS lib.
To keep the compiled output small, the recommended way to do this is to add your Go structs, but strip out methods, private properties, and anything else that you don't plan to marshal to Amino.
This is all (hopefully) less complicated than it sounds.
1. Fork
See FORK.md for instructions.
2. Extend
See EXTEND.md for instructions.
Contributing
amino-js is very new! Questions, feedback, use cases, issues, and code are all very, very welcome.
Thank you for helping us help you help us all.