Awesome Open Source
Awesome Open Source

Invoice as a service

This service generates professional looking PDF invoices, from a simple POST HTTP request with json payload.

File destinations / storage

Rendered file can be returned into the HTTP response or exported to:

  • AWS S3 (and any compatible storage destination)
  • FTP server
  • Webhook
  • Zapier: "Catch hook" trigger, can be linked to Drive, Dropbox...

Demo

Screenshot

Usage

I provide invoice-as-a-service with a full hosted environment for fast and easy setup (endpoint: https://invoice-as-a-service.cleverapps.io).

For improved privacy, you can also deploy the project on your own infrastructure for free.

Hosted

$ curl "https://invoice-as-a-service.cleverapps.io/api/invoice/generate" \
     -X POST -H "content-type: application/json" \
     -d '{

        "id": "42",
        "currency": "€",
        "lang": "en",
        "date": 1520852472,
        "due_date": 1521457272,
        "paid": false,
        "payment_link": "https://screeb.app/user/invoices/42/pay",
        "decimals": 2,
        "notes": "Lorem ipsum dolor sit amet.",

        "items": [
            {
                "title": "'Growth' plan Screeb.app",
                "description": "1 year subscription",
                "price": 42,
                "quantity": 1,
                "tax": 20
            }
        ],

        "customer": {
            "summary": "John Doe",
            "address_line_1": "Baxter Building, 42nd street, Madison Avenue",
            "address_line_2": "Manhattan, NY, 11234",
            "address_line_3": "United States",
            "address_line_4": "Earth",
            "phone": "1-888-548-0034",
            "email": "[email protected]"
        },

        "company": {
            "summary": "Screeb",
            "address_line_1": "123, place de Bretagne",
            "address_line_2": "44000 Nantes",
            "address_line_3": "France",
            "address_line_4": "Earth",
            "phone": "1-888-548-0034",
            "email": "[email protected]",
            "logo_url": "https://raw.githubusercontent.com/samber/invoice-as-a-service/master/screeb-logo.png",
            "other": [
                "EMEA office",
                {
                    "title": "Business hours",
                    "content": "9am - 6pm"
                }
            ]
        },

        "s3": {
            "presigned_url": null
        },

        "ftp": {
        	"host": "127.0.0.1",
        	"username": "ftpuser",
        	"password": "superSecretPassword",
        	"path" : "/var/html/share/"
        },

        "webhook": {
            "url": "https://webhook.example.com/invoice/store",
            "headers": {
                "x-token": "very-secret-token"
            }
        },

        "zapier": {
            "zap_url": "https://hooks.zapier.com/hooks/catch/xxxxxxx/yyyyyy",
            "filename": "invoice-42.pdf"
        }

     }'

Self hosted

$ composer install
$ php artisan serve
$ curl "http://localhost:8000/api/invoice/generate" \
     -X POST -H "content-type: application/json" \
     -d '{ ... }'

User interface from contributor

Here => crocomo2744.github.io/Invoicing-form

Properties

Property Type Required Description Example
id string yes Your invoice reference "42"
currency string yes Your billing currency "€"
lang string yes Only english supported for now "en"
tax float yes Tax percentage 20
date integer yes Timestamp of invoice creation date 1520852472
due_date integer yes Timestamp of invoice due date 1521457272
paid boolean no Adding a "paid" image (default: false) false
payment_link string no Payment link "https://screeb.app/user/invoices/42/pay"
decimals integer no Number decimals for prices (default: 2) 2
notes string no Terms, conditions or anything you have to write in order to edit a valid invoice. "Lorem ipsum dolor sit amet."
items array yes List of items [ Item(...), Item(...) ]
customer object yes Customer infos Customer(...)
company object yes Company infos Company(...)
s3 object false AWS S3 invoice upload S3Upload(...)
ftp object false FTP invoice upload FTPUpload(...)
webhook object false Webhook invoice upload WebhookUpload(...)
zapier object false Zapier invoice upload ZapierUpload(...)

Item:

Property Type Required Description Example
title string yes Product or service name "'Growth' plan Screeb.app"
description string no Product or service description "1 year subscription"
price float yes Product or service price 42
quantity float no Product or service quantity (default: 1) 1
tax float no Tax rate (default: 0) 1

Customer:

Property Type Required Description Example
summary string yes Organisation or customer name "John Doe"
address_line_1 string yes Customer address, line 1 "Baxter Building, 42nd street, Madison Avenue"
address_line_2 string no Customer address, line 2 "Manhattan, NY, 11234"
address_line_3 string no Customer address, line 3 "United States"
address_line_4 string no Customer address, line 4 "Earth"
phone string no Customer phone number "1-888-548-0034"
email string no Customer email address "[email protected]"
siret (deprecated) string no French company identification number "539 138 107 00021"
other array of mixed string and Other() no Customer additional infos [ String, Other(), ... ]

Company:

Property Type Required Description Example
summary string yes Your organisation name "Screeb"
address_line_1 string yes Customer address, line 1 "123, place de Bretagne"
address_line_2 string no Customer address, line 2 "44000 Nantes"
address_line_3 string no Customer address, line 3 "France"
address_line_4 string no Customer address, line 4 "Earth"
phone string no Customer phone number "1-888-548-0034"
email string no Customer email address "[email protected]"
logo_url string no URL of your company logo "https://acme.corp/logo.png"
logo_b64 string no Base64 encoded image of your company logo "data:image/png;base64,........."
siret (deprecated) string no French company identification number "539 138 107 00021"
other array of mixed string and Other() no Company additional infos [ String, Other(), ... ]

customer.other[].* and company.other[].*

customer.other and company.other fields are arrays of mixed type: simple string or the following object:

Property Type Required Description Example
title string true Field name "Twitter handle"
content string true Field value "@foobar"

S3 upload

Property Type Required Description Example
presigned_url string false Presigned AWS S3 upload url "https://my-bucket.s3.eu-central-1.amazonaws.com/[email protected]?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=xxxx&X-Amz-Date=xxxx&X-Amz-Expires=xxxx&X-Amz-Signature=xxxx&X-Amz-SignedHeaders=host"

FTP upload

Property Type Required Description Example
host string true The host, IP Address of the server "ftp.example.com"
username string true The ftp username to connect "john"
password string true The ftp password of the user you are trying to connect "test1234"
port integer false The port used to connect, default is 21. 21
ssl boolean false If the connection supports SSL mention that here, default is false. true
passive boolean false If it should use a passive connection, default is true. true
path string true The full path on the server where you want the invoice to be uploaded. "/home/john/share"

Webhook upload

Property Type Required Description Example
url string true The URL of the destination webhook "https://webhook.example.com/invoice/store"
headers object false These headers will be inserted into webhook request { "x-token": "very-secret-token" }

Zapier upload

Property Type Required Description Example
zap_url string true URL of Zapier Hook "https://hooks.zapier.com/hooks/catch/xxxxxxx/yyyyyy"
filename string false Filename that will be provided into Zapier Hook "invoice-42.pdf"

Notes

The provided logo_url (optional) must be accessible from the invoice-as-a-service API !

Contribute

Hell yeah!

Clone + pull-request.

I usually reply in hours or days ;)

Magic happens here:

  • template: `resources/views/invoices/default.blade.php``
  • controller + input validation: app/Http/Controllers/InvoiceController.php
  • pdf build: app/Helpers/PDF.php
  • invoice storage: app/Helpers/Storage.php

AWS S3 - Generate presigned upload url:

$ aws configure
$ node ./scripts/presign-upload-url.js <region> <my-bucket> invoices/[email protected]

Update dependencies

$ composer outdated -D
$ composer update <package-name> --with-dependencies

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