MyInvois Client

A comprehensive Node.js client for Malaysia's MyInvois e-invoicing system with full digital signature support.

Installation

bun install

Environment Variables

Create a .env file in the project root with your MyInvois credentials:

# MyInvois API Credentials (from MyInvois portal)
CLIENT_ID=your_client_id_here
CLIENT_SECRET=your_client_secret_here

# Your Certificate and Private Key (PEM format)
TEST_CERTIFICATE="-----BEGIN CERTIFICATE-----
your_certificate_content_here
-----END CERTIFICATE-----"

TEST_PRIVATE_KEY="-----BEGIN PRIVATE KEY-----
your_private_key_content_here
-----END PRIVATE KEY-----"

# Your MyInvois TIN (Tax Identification Number)
TIN_VALUE=IG12345678901

# Your NRIC/Business Registration Number
NRIC_VALUE=123456789012

# Additional test TINs for comprehensive testing
TEST_TIN_1=C12345678901
TEST_TIN_2=C98765432109
TEST_TIN_3=IG98765432109

# Test buyer information
BUYER_TIN_VALUE=IG00000000000
BUYER_NRIC_VALUE=000000000000

⚠️ Important: Never commit your actual TIN, NRIC, certificates, or API credentials to version control.

Testing

bun test

Generating Test Certificates for Development

For testing purposes, you can generate self-signed certificates with MyInvois-required fields:

1. Create Certificate Configuration

Create myinvois-cert.conf:

[req]
distinguished_name = req_distinguished_name
req_extensions = v3_req
prompt = no

[req_distinguished_name]
C = MY
ST = YOUR_STATE
L = YOUR_CITY
O = YOUR_COMPANY_NAME
CN = YOUR_COMPANY_NAME
emailAddress = YOUR_EMAIL
serialNumber = YOUR_BUSINESS_REGISTRATION_NUMBER

[v3_req]
keyUsage = keyEncipherment, dataEncipherment, digitalSignature, nonRepudiation
extendedKeyUsage = clientAuth, emailProtection
subjectAltName = @alt_names

[alt_names]
email.1 = YOUR_EMAIL
DNS.1 = YOUR_DOMAIN

2. Generate Private Key

openssl genrsa -out myinvois-test-key.pem 2048

3. Generate Certificate with Required MyInvois Fields

# Basic certificate with SERIALNUMBER
openssl req -new -x509 -key myinvois-test-key.pem -out myinvois-test-cert.pem -days 365 -config myinvois-cert.conf

# Enhanced certificate with organizationIdentifier (OI) field for TIN
openssl req -new -x509 -key myinvois-test-key.pem -out myinvois-enhanced-cert.pem -days 365 \
  -subj "/C=MY/ST=YOUR_STATE/L=YOUR_CITY/O=YOUR_COMPANY_NAME/CN=YOUR_COMPANY_NAME/serialNumber=YOUR_BUSINESS_REG/2.5.4.97=YOUR_TIN/emailAddress=YOUR_EMAIL"

4. Verify Certificate Fields

# Check certificate details
openssl x509 -in myinvois-enhanced-cert.pem -text -noout | grep -A 2 -B 2 "Subject:"

# Should show both:
# serialNumber=YOUR_BUSINESS_REG
# organizationIdentifier=YOUR_TIN

Example Values

Replace the placeholders with your actual values:

• YOUR_STATE: Kuala Lumpur
• YOUR_CITY: Kuala Lumpur
• YOUR_COMPANY_NAME: My Company Sdn Bhd
• YOUR_EMAIL: [email protected]
• YOUR_BUSINESS_REG: 202301234567 (SSM registration)
• YOUR_TIN: IG12345678901 (MyInvois TIN)
• YOUR_DOMAIN: mycompany.com

Production Certificates

⚠️ For production use, obtain official business certificates from MyInvois-approved Certificate Authorities:

• MSC Trustgate: https://www.msctrustgate.com/
• Digicert Sdn Bhd
• Cybersign Asia

The certificate must include:

• organizationIdentifier field with your TIN
• SERIALNUMBER field with your business registration number
• Issued by a MyInvois-trusted CA

This project was created using bun init in bun v1.2.10. Bun is a fast all-in-one JavaScript runtime.