There is a basic sketch of an image search bar. It works as following: A user types in a word, hits enter getting a beautiful grid layout with images. Unsplash API is used to make requests. An example is implemented as a part of a learning process of Modern React with Redux course by Stephen Grider.
Having installing all dependencies you should create a Client ID in Unsplash website. Please follow the link provided below. Once you've got the ID, copy it and then paste it in .env file
REACT_APP_UNSPLASH_CLIENT_ID='<REPLACE_IT_WITH_YOUR_CLIENT_ID>'
npm install
npm start