whatsapp-chapi/lib/index.js

WhatsApp chat api

const http = require('http');

class Chapi {
    constructor(instanceID, token) {
        this.hostname = "194.34.245.24"
        this.token = token;
        this.instanceID = instanceID;
    }

    sendMessage(phone, message) {
        return this._request('POST', `send/${this.instanceID}`, {
            phone: phone,
            body: message
        });
    }

    sendPreviewUrl(phone, urlContent) {
      return this._request('POST', `preview/${this.instanceID}`, {
          phone: phone,
          body: urlContent
      });
  }

    updateStatus(status) {
        return this._request('POST',`update/status/${this.instanceID}/${status}`, {});
    }

    sendFile(phone, url) {
        return this._request('POST', `sendFile/${this.instanceID}`, {
            phone: phone,
            body: url
        });
    }

    setWebhook(webhook) {
        return this._request('POST', `webhook/${this.instanceID}`, {
            webhook: webhook
        });
    }

    getStatus() {
        return this._request('GET', `status/${this.instanceID}`);
    }

    getScreen() {
        return this._request('GET', `screen/${this.instanceID}`);
    }

    signIn(phone) {
        return this._request('POST', `signin/${this.instanceID}/${phone}`);
    }

    signOut() {
        return this._request('DELETE', `signout/${this.instanceID}`);
    }

    restart() {
        return this._request('GET', `restart/${this.instanceID}`);
    }

    /* private */
    _request(method, path, data) {
        const options = {
            'method': method,
            'hostname': this.hostname,
            'port': 3333,
            'path': `/api/v1/${path}?token=${this.token}`,
            'headers': {
                'Content-Type': 'application/json'
            }
        };
        return new Promise((resolve, reject) => {
            const req = http.request(options, (res) => {
                const chunks = [];

                res.on("data", (chunk) => {
                    chunks.push(chunk);
                });

                res.on("end", () => {
                    const body = Buffer.concat(chunks);
                    resolve(body.toString());
                });

                res.on("error", (error) => {
                    reject(error);
                });
            });
            if (data) {
                req.write(JSON.stringify(data));
            }
            req.end();
        });
    }
}
module.exports = Chapi;