Fetching Yelp API via Netlify Function with React.js [pt. 7]

Previous part covering steps 21-23 is right here.

In this part I will:

fix three functionality issues (browser reload, new search, incomplete search)

style fetched data with grid, flex and position properties,

deploy app to Netlify

24. Fixing some issues

Now, when data is securely fetched from API and correctly displayed in the browser, it is time to get rid of a few tiny functionality flaws. The following three bother me the most:

24.1 Reloading browser right after searching

🟡 USE CASE:

I've had entered and submitted some search criteria, e.g. pizza/Berlin and I'm under URL with search?term=pizza&location=Berlin query string. My browser shows me the rendered list of pizzerias in Berlin.

entering state is emptied ({food: "", town: ""}).

submitting state contains {food: "pizza", town: "Berlin"}.

KEY STEP: I'm reloading the browser.

Render is gone (as I wanted and expected), so I can see only Input fields and Search button.

submitting state is emptied ({food: "", town: ""}), that's correct too.

🔴 PROBLEM:

I am still under URL with search?term=pizza&location=Berlin query string.

I want to be under just homepage URL, without query string.

🟢 SOLUTION:

👉 In step 12.4 (part 3) I used useHistory hook and history object to generate query string. I did it in Inputs component. Right know, in this step, I'll use the same method in App component to remove it:

~/src/App.jsx

👉 In step 16.1 (part 4) I created netlify.toml configuration file with some redirects rules. Right now I need to update them with this code:

~/netlify.toml

👉 I repeat the whole USE CASE, and after reloading the browser, query string is gone.

24.2 New search, right after the previous one

🟡 USE CASE:

I repeat steps 1-3 from previous use case

KEY STEP: without clicking at homepage link, nor without reloading the browser, I'm entering some new search criteria, e.g. vegan/Sydney and submitting them.

as a result of this new search, my submitting state contains {food: "vegan", town: "Sydney"} as it should

also query string is correct: search?term=vegan&location=Sydney

🔴 PROBLEM:

browser still shows the same render with pizzerias in Berlin

🟢 SOLUTION:

👉 First of all, I wanna check if API was even fetched:

~/src/comps/Fetched.jsx

So I repeat the whole USE CASE and after submission of vegan/Sydney I check my DevTools:

DevTools > Console

Seems to me, that for some reason a new fetching wasn't triggered at all.

👉 To fix that, I need to make use of Dependency Array in my useEffect hook. In step 7.2 (part 2) I passed submitting state, as prop, to Fetched component. Now it's time to use it:

~/src/comps/Fetched.jsx

Right now, every time when submitting state will change, fetchingYelpFx function will run, which means fetching will be triggered. I repeat the whole USE CASE again and after submission of vegan/Sydney I check my DevTools:

DevTools > Console

Looks promising, so I check my render:

https://stoic-bartik-7b88ce-2fe390.netlify.live/search?term=vegan&location=Sydney

The currently rendered data matches the actual query string.

24.3 Leaving Input field(s) empty, then search

🟡 USE CASE:

I search for pizza, but I do not specify any town. Or, I search for Berlin, but I do not specify any food. Or, I do not specify anything at all, just click Submit button.

🟨 /Berlin SCENARIO:

submitting state contains {food: "", town: "Berlin"}

query string contains search?term=&location=Berlin

🟨 pizza/ SCENARIO:

submitting state contains {food: "pizza", town: ""}

query string contains search?term=pizza&location=

🟨 / SCENARIO:

submitting state contains {food: "", town: ""}

query string contains search?term=&location=

🔴 PROBLEM:

🟥 /Berlin SCENARIO is not big deal really, I just get useless data in my render: landmarks, buildings, parks and museums mixed up with food stands, restaurants and cafeterias. Total mess.

🟥 pizza/ and / SCENARIOS are bigger problem which must be solved: no render whatsoever, and as if that was not enough, error in browser console:

DevTools > Console

🟢 SOLUTION:

👉 I want to define more precisely a condition when Fetched component will be rendered:

~/src/App.jsx

👉 I need to specify under what circumstances a query string will be generated:

~/src/comps/Inputs.jsx

👉 Finally, I must define when exactly a fetching can be triggered:

~/src/comps/Fetched.jsx

Right now, /Berlin, pizza/ and / SCENARIOS will not happen.

25. Styling fetched data

25.1 grid value

Right now I'm rendering data in the same order as I'm fetching it: image_url goes first, name goes below, rating and review_count go next, display_address and each title on the end. It looks like this:

I would like to make adjustments to my code and achieve something like this:

So I will:

add a className property to div tag containing all fetched data,

wrap all p tags with text data in new, common div tag with className property assigned to it:

~/src/comps/Fetched.jsx

With newly reorganized HTML code I can style it. For display property I will use grid value.

~/src/comps/Fetched.scss

I run netlify dev --live command, enter some search criteria, e.g. pizza/Berlin and submit them.

https://stoic-bartik-7b88ce-2fe390.netlify.live/search?term=pizza&location=Berlin

With this style, for each fetched data set, I render image on the left side, and text data on the right.

25.2 flex value

Right now I'm rendering each title below the previous one, like this:

I would like to render all of them in one line, like this:

So I will:

add a className property to p tag containing a single fetched title,

wrap categories constant in new div tag with className property assigned to it:

~/src/comps/Fetched.jsx

With newly reorganized HTML code I can style it. For display property I will use flex value. Additionally I'll adjust some fonts size.

~/src/comps/Fetched.scss

I run netlify dev --live command, enter some search criteria, e.g. pizza/Berlin and submit them.

https://stoic-bartik-7b88ce-2fe390.netlify.live/search?term=pizza&location=Berlin

With this style, all titles instead of to be displayed as a list, are render in one line, like a sentence.

25.3 position property

I would like to align each title to the bottom of its associated image.

In order to achieve it, I will alter default value of position property, both in div className="all-categories" tag and his parent div className="one-single-record" tag.

~/src/comps/Fetched.scss

I run netlify dev --live command, enter some search criteria, e.g. pizza/Berlin and submit them.

https://stoic-bartik-7b88ce-2fe390.netlify.live/search?term=pizza&location=Berlin

titles are aligned, seems to me style is completed.

26. Deploying to Netlify

In step 19.1 (part 5) I initialized my stoic-bartik-7b88ce app on app.netlify.com. Since then, this app has not yet been deployed status and to make it accessible via http protocol, I need to run public live session with netlify dev --live command. In the long run it's inconvenient, because each session generates random URL. I need to deploy my app to the Netlify server and make it available online under fixed URL

26.1 yarn build

First action I must take to prepare my app for deployment is to use yarn build command which generates minified production build. It works like this:

After yarn build command is used, a new build directory is created in my repo:

tree -L 1

To check what it contains, I can use this chain of three commands:

cd build && tree && cd ..

So I have one CSS file, three JS files and all of them are linked to HTML file. Entire production build is well described in CRA documentation.

26.2 netlify deploy --prod

After netlify deploy --prod command is used, app is fully deployed to app.netlify.com and is available online under fixed URL.