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konsolejs
Advanced tools
Readme
KonsoleJS is a small cli framework developed with Typescript. You can develop reactive applications by Redux and RxJS in Konsole JS.
Install
$ yarn add konsolejs
or
$ npm i konsolejs --save
hello.ts
import { Command } from 'konsolejs';
@Command()
class HelloCommand {
name = 'hello';
description = 'The hello world command';
handle() {
console.log('Hello World!');
}
}
export default HelloCommand;
index.ts
import Konsole from 'konsolejs';
import './hello';
Konsole.run({
scriptName: 'console-app',
});
Terminal
$ npx ts-node index.ts hello
Konsole JS uses yargs for command arguments. Created command builder will be inject to command class constructor. So you can be detail your command arguments.
Example:
import { Command } from 'konsolejs';
import { Argv, Arguments } from 'yargs';
@Command()
class LoginCommand {
name = 'login';
description = 'Loging to platformm';
before(builder: Argv) {
builder
.positional('username', {
type: 'string',
describe: 'The user name',
})
.positional('password', {
type: 'string',
describe: 'The user password',
});
}
handle(args: Arguments) {
console.log('username:', args.username, 'password:', args.password);
}
}
export default LoginCommand;
Terminal
$ npx ts-node index.ts login --username test@example.com --password 1234
For more advanced usage, please visit: http://yargs.js.org
With the @Command
decorator you can inject parameters into the command class constructor.
@Command({
inject: [auth, user],
})
class LoginCommand {
constructor(auth, user) {
// ...
}
}
You can manage state of objects using pure ReduxJS library. For this first of all, you should be configure the redux then pass the store to KonsoleJS.
Install Redux:
$ yarn add redux
Create store:
import Konsole from 'konsolejs';
import { createStore } from 'redux';
const store = createStore(reducers);
Konsole.run({
scriptName: 'console-app',
store,
});
That's all.
Action creator
const fetchUser = (email: string) => async (dispatch) => {
try {
dispatch({ type: 'FETCH_USER_PENDING' });
const result = await fetch(/**api request**/);
dispatch({ type: 'FETCH_USER_FULFILLED', data: result });
} catch (e) {
dispatch({ type: 'FETCH_USER_REJECTED', error: e });
}
};
Reducer
const initialState = {
pending: false,
error: null,
user: null,
};
const userReducer = (state = initialState, action) => {
switch (action.type) {
case 'FETCH_USER_PENDING': {
return {
...state,
pending: true,
};
},
case 'FETCH_USER_FULFILLED': {
return {
...state,
pending: false,
user: action.data
}
},
case 'FETCH_USER_REJECTED': {
return {
error: action.error,
pending: false,
user: null,
}
}
default:
return state;
}
};
Command
import { Command, Subscribe, dispatch, getState } from 'konsolejs';
@Command()
class CreateUserCommand {
name = 'create-user [email]';
description = 'Create a new user';
args = {};
@Subscribe('FETCH_USER_FULFILLED')
userAlreadyExists() {
console.log('The user already created!');
}
@Subscribe('FETCH_USER_REJECTED')
fetchUserRejected() {
const { user } = getState();
if (user.error.message === 'user not found') {
this.createNewUser();
}
}
@Subscribe('CREATE_USER_FULFILLED')
createUserFulfilled() {
console.log('User created!');
}
createNewUser() {
const { email } = this.args;
dispatch(createUser(email));
}
handle(args: Arguments) {
this.args = args;
dispatch(fetchUser(args.email));
}
}
Terminal
$ npx ts-node index.ts create-user test@example.com
import { Subject, Observable } from 'rxjs';
import { filter } from 'rxjs/operators';
@Command()
class CreateUserCommand {
name = 'fetch-users';
description = 'Fetch users and filter vip ones';
@Subscribe({
action: 'FETCH_USERS_FULFILLED',
observer(subject: Subject<any>): Observable<any> {
return subject.pipe(filter((user) => user.isVip));
},
})
fetchUsersFulfilled(result) {
console.log(result);
// [{name: 'Thor', isVip: true}]
}
handle() {
dispatch(fetchUsers());
}
}
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
FAQs
KonsoleJS is a small cli framework developed with Typescript.
We found that konsolejs demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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