# InvMan

## Table of Contents

1. [What is InvMan?](#what-is-invman)
2. [API Usage](#api-usage)
    1. [GET Requests](#get-requests-getting-information)
    2. [POST Requests](#post-requests-creating-objects)

## What is InvMan?

InvMan is a Flask app which provides a web API and web UI to keep inventory using a PostgreSQL backend.

---

## API Usage

### GET requests (getting information)

---
Please keep in mind:

* Text surrounded by `[` and `]` are parameters which should be replaced.
* Names are case-sensitive.

Get a list of locations

```plaintext
GET /api/v1/locations
```

Get information about a location

```plaintext
GET /api/v1/location/name/[location-name]
```

Get the quantities of all products at a location

```plaintext
GET /api/v1/location/[location-name]/quantities
```

Get the quantity of a product (by UPC) at a location

```plaintext
GET /api/v1/location/[location-name]/quantity/upc/[product-upc]
```

Get the quantity of a product (by name) at a location

```plaintext
GET /api/v1/location/[location-name]/quantity/name/[product-name]
```

Get a list of products

```plaintext
GET /api/v1/products
```

Get information about a product (by UPC)

```plaintext
GET /api/v1/product/upc/[product-upc]
```

Get information about a product (by name)

```plaintext
GET /api/v1/product/name/[product-name]
```

Get a list of brands

```plaintext
GET /api/v1/brands
```

Get information about a brand

```plaintext
GET /api/v1/brand/name/[brand-name]
```

Get a list of units

```plaintext
GET /api/v1/units
```

Get information about a unit (by name)

```plaintext
GET /api/v1/unit/name/[unit-name]
```

Get a list of purchases

```plaintext
GET /api/v1/purchases
```

Get information about a purchase (by id)

```plaintext
GET /api/v1/purchase/id/[purchase-id]
```

Get a list of uses

```plaintext
GET /api/v1/uses
```

Get information about a use (by id)

```plaintext
GET /api/v1/purchase/id/[use-id]
```

### POST Requests (creating objects)

---

Create a location

```plaintext
POST /api/v1/create_location
```

Request form:
| Argument Name | Description                 | Required? |
| ------------- | --------------------------- | --------- |
| name          | Name of the location        | Yes       |
| description   | Description of the location | No        |
---
Create a brand

```plaintext
POST /api/v1/create_brand
```

Request form:
| Argument Name | Description              | Required? |
| ------------- | ------------------------ | --------- |
| name          | Name of the brand        | Yes       |
| description   | Description of the brand | No        |
---

Create a unit

```plaintext
POST /api/v1/create_unit
```

Request form:
| Argument Name | Description             | Required? |
| ------------- | ----------------------- | --------- |
| name          | Name of the unit        | Yes       |
| description   | Description of the unit | No        |
---
Create a product

```plaintext
POST /api/v1/create_product
```

Request form:
| Argument Name | Description                   | Required? |
| ------------- | ----------------------------- | --------- |
| upc           | UPC of the product            | Yes       |
| brand         | Brand which makes the product | Yes       |
| name          | Name of the product           | Yes       |
| size          | Size of the product           | Yes       |
| sizeunit      | Unit used in `size`           | Yes       |
| description   | Description of the product    | No        |
---
Create a purchase

```plaintext
POST /api/v1/create_purchase
```

| Argument Name | Description                            | Required? |
| ------------- | -------------------------------------- | --------- |
| upc           | UPC of the product which was purchased | Yes       |
| quantity      | Quantity of the product purchased      | Yes       |
| date          | Date of this purchase                  | Yes       |
| location      | Location to link this purchase to      | Yes       |
---
Create a use

```plaintext
POST /api/v1/create_use
```

| Argument Name | Description                       | Required? |
| ------------- | --------------------------------- | --------- |
| upc           | UPC of the product which was used | Yes       |
| quantity      | Quantity of the product used      | Yes       |
| date          | Date of this usage                | Yes       |
| location      | Location to link this usage to    | Yes       |