ValuationMobileApp

A simple react native mobile api that gives the user a rough estimate of what the thing they take a picture of is worth.

Tools used

• react native - builds native apps in javascript
• expo - simplifies react native development
• express - for a simple http api to abstract over the necessary api's for security reasons
• clarifai - identifies images
• ebay api - values things

Architecture

mobile

react native app that does image selection and upload

server

express app that basically wraps ebay and clarifai libaries to protect credentials and access.

Getting it started

Creating secrets

To keep some sensitive credentials confidential (not pushed up to github) there are a few files that need to be created.

• server/src/secrets.ts

const ebayCredentials = {
  production: {
    appId: "appid",
    certId: "certid"
  }
}
const clarifaiApiKey = "the_key";

Starting it up

• server
  • cd server; npm start
• client
  • cd mobile; npm start
  • install the expo app on your phone
  • open it up
  • make sure you're on the same wifi network
  • select the app in expo to start it up