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slooi / mission4

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Context

(this is coursework) Create a website which allows users to upload images of cars to find similar car using Microsoft Azure's Vision Api. This project uses the Image Tagging service Azure provides. I also must integrate mongodb and a cli tool to allow for seeding of the database

Technology Stack

  • Language: TypeScript
  • Server Framework: Express.js
  • Database: MongoDB with Mongoose
  • Command Line Interface (CLI): Commander
  • Environment Variable Management: Dotenv
  • API Routing and Handling: Express.js
  • File Upload Handling: Multer
  • Validation Schema: Zod
  • Typescript JIT Runner: tsx

Setup

  • The following steps assumes you are deploying to a cloud provider with publicly accessible IP address.
    • This is because azure's vision tag api requires you to specify a public url to GET the images from
  1. Clone this repo:
git clone https://github.com/slooi/mission4.git
  1. Navigate into the repo
cd mission4
  1. Install dependencies:
npm i

Create .env in the base of this repo with the following variables (navigate to the Resources section to find out how to get an azure key):

AZURE_KEY=<YOUR_KEY>
SERVER_IP_N_SCHEME=<SCHEME><YOUR_IP>

For example:

AZURE_KEY=101c7004sdfsj3o9sdfkj312na9123a01231
SERVER_IP_N_SCHEME=http://118.133.121.111
  1. Create a userUploads folder for user uploaded images:
mkdir ./src/client/public/userUploads
  1. Prepare to see dummy images. Dummy images are located in ./src/client/public/userUploads. If they do not exist seeding will NOT work properly. Seed images by running:
tsx src/server/cli.ts seed

  1. Open port 80 for your network/vps on your vps provider's dashboard. Otherwise azure will NOT be able to GET images

  2. Redirect traffic to port 8000 from port 80:

sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8000
  1. Run the server:
npm run dev-server

cli

Below are the cli commands to interact with mongodb

  • seed
tsx src/server/cli.ts seed

add & delete

(The image paths and carUrl must be relative to src/client/public/imgs)

  • add
tsx src/server/cli.ts add <imagePath> -t <carType>
tsx src/server/cli.ts add pickup0.webp -t van
  • delete 
tsx src/server/cli.ts delete <carUrl>

Resources

Here are some resources which I found most helpful for this project:

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