loopback-connector-seven

The official seven connector for LoopBack. Prior to using you will need to create an API key.

This connector supports the following endpoints of the seven REST API:

• Sending SMS
• Making text-to-speech calls

Installation

In your LoopBack project:

NPM

$ npm i @seven.io/loopback

Yarn

$ yarn add @seven.io/loopback

Setup

Create a data source

import {inject, lifeCycleObserver, LifeCycleObserver} from '@loopback/core'
import {juggler} from '@loopback/repository'
import {SevenConnector} from '@seven.io/loopback'

const config = {
    apiKey: process.env.SEVEN_API_KEY,
    connector: SevenConnector,
    name: 'seven',
}

@lifeCycleObserver('datasource')
export class SevenDataSource extends juggler.DataSource implements LifeCycleObserver {
    static dataSourceName = 'seven'
    static readonly defaultConfig = config

    constructor(
        @inject('datasources.config.seven', {optional: true})
            dsConfig: object = config,
    ) {
        super('seven', dsConfig)
    }
}

Create a model

import {Model, model, property} from '@loopback/repository';

@model()
export class SevenMessage extends Model {
    @property({
        generated: false,
        id: true,
        required: true,
        type: 'string',
    })
    operation: 'voice' | 'sms';

    @property({
        required: true,
        type: 'string',
    })
    to: string;

    @property({
        required: false,
        type: 'string',
    })
    from: string;

    @property({
        required: true,
        type: 'string',
    })
    text: string;

    constructor(data?: Partial<SevenMessage>) {
        super(data);
    }
}

export interface SevenRelations {
    // describe navigational properties here
}

export type SevenWithRelations = SevenMessage & SevenRelations;

Create a service

import {injectable, BindingScope, Provider, inject} from '@loopback/core'
import {GenericService, getService} from '@loopback/service-proxy'
import {SevenDataSource} from '../datasources'
import {SevenMessage} from '../models'

export interface Seven extends GenericService {
    send(data: SevenMessage): Promise<unknown>;
}

@injectable({scope: BindingScope.TRANSIENT})
export class SevenProvider implements Provider<Seven> {
    constructor(
        @inject('datasources.seven')
        protected dataSource: SevenDataSource = new SevenDataSource(),
    ) {
    }

    value(): Promise<Seven> {
        return getService(this.dataSource)
    }
}

Usage

Send SMS

import {inject} from '@loopback/core'
import {post} from '@loopback/rest'
import {SevenMessage} from '../models'
import {Seven} from '../services'

export class SmsController {
    @post('/send-sms')
    async sms(
        @inject('services.Seven') sevenProvider: Seven,
    ): Promise<void> {
        const msg = new SevenMessage({
            from: 'optional sender ID',
            operation: 'sms',
            text: 'This is a test SMS from LoopBack via seven',
            to: 'phone number(s) for calling separated by comma',
        })

        try {
            const json = await sevenProvider.send(msg)
            console.log('json', json)
        } catch (e) {
            console.error('e', e)

            throw e
        }
    }
}

Make a text-to-speech call

import {inject} from '@loopback/core'
import {post} from '@loopback/rest'
import {SevenMessage} from '../models'
import {Seven} from '../services'

export class TextToSpeechController {
    @post('/send-voice')
    async voice(
        @inject('services.Seven') sevenProvider: Seven,
    ): Promise<void> {
        const msg = new SevenMessage({
            from: 'optional caller ID',
            operation: 'voice',
            text: 'This is a test call from LoopBack via seven',
            to: 'the number for calling',
        })

        try {
            const json = await sevenProvider.send(msg)
            console.log('json', json)
        } catch (e) {
            console.error('e', e)

            throw e
        }
    }
}

Options

Send SMS

{
    from: 'OPTIONAL_SENDER_ID',
    operation: 'sms',
    text: 'TEXT_MESSAGE',
    to: 'TARGET_PHONE_NUMBER(S)'
}

Make a text-to-speech call

{
    from: 'OPTIONAL_CALLER_ID',
    operation: 'call',
    text: 'TEXT_OR_XML',
    to: 'TARGET_PHONE_NUMBER'
}

Support

Need help? Feel free to contact us.