9.1.2. Javascript library¶
This library provides functions which will help you to interact with Hyperledger Iroha from your JS program.
9.1.2.2. Commands¶
For usage of any command you need to provide commandOptions
as a first argument.
const commandOptions = {
privateKeys: ['f101537e319568c765b2cc89698325604991dca57b9716b58016b253506cab70'], // Array of private keys in hex format
creatorAccountId: '', // Account id, ex. admin@test
quorum: 1,
commandService: null
}
As second argument you need to provide object that contains properties for required command.
// Example usage of setAccountDetail
const commandService = new CommandService_v1Client(
'127.0.0.1:50051',
grpc.credentials.createInsecure()
)
const adminPriv = 'f101537e319568c765b2cc89698325604991dca57b9716b58016b253506cab70'
commands.setAccountDetail({
privateKeys: [adminPriv],
creatorAccountId: 'admin@test',
quorum: 1,
commandService
}, {
accountId: 'admin@test',
key: 'jason',
value: 'statham'
})
9.1.2.3. Queries¶
For usage of any query you need to provide queryOptions
as a first argument.
const queryOptions = {
privateKey: 'f101537e319568c765b2cc89698325604991dca57b9716b58016b253506cab70', // Private key in hex format
creatorAccountId: '', // Account id, ex. admin@test
queryService: null
}
As second argument you need to provide object that contains properties for required query.
// Example usage of getAccountDetail
const queryService = new QueryService_v1Client(
'127.0.0.1:50051',
grpc.credentials.createInsecure()
)
const adminPriv = 'f101537e319568c765b2cc89698325604991dca57b9716b58016b253506cab70'
queries.getAccountDetail({
privateKey: adminPriv,
creatorAccountId: 'admin@test',
queryService
}, {
accountId: 'admin@test'
})
9.1.2.4. Example code¶
import grpc from 'grpc'
import {
QueryService_v1Client,
CommandService_v1Client
} from '../iroha-helpers/lib/proto/endpoint_grpc_pb'
import { commands, queries } from 'iroha-helpers'
const IROHA_ADDRESS = 'localhost:50051'
const adminPriv =
'f101537e319568c765b2cc89698325604991dca57b9716b58016b253506cab70'
const commandService = new CommandService_v1Client(
IROHA_ADDRESS,
grpc.credentials.createInsecure()
)
const queryService = new QueryService_v1Client(
IROHA_ADDRESS,
grpc.credentials.createInsecure()
)
Promise.all([
commands.setAccountDetail({
privateKeys: [adminPriv],
creatorAccountId: 'admin@test',
quorum: 1,
commandService
}, {
accountId: 'admin@test',
key: 'jason',
value: 'statham'
}),
queries.getAccountDetail({
privateKey: adminPriv,
creatorAccountId: 'admin@test',
queryService
}, {
accountId: 'admin@test'
})
])
.then(a => console.log(a))
.catch(e => console.error(e))