You may choose a task to complete out of two tasks; one is more of day to day one, and the other one is a bit more challenging, but your choice is not going to determine anything, just options to see your strong suit. Please, put the solution on GitHub and send the link back via email. Enjoy!
Using the free open weather map two API endpoints (the key is on the weather service) https://openweathermap.org/api/one-call-api https://openweathermap.org/api/geocoding-api
- Build an application that allows you to search the weather forecast hourly or daily for a city.
- The UI has a search box and two filter options,
hourlyanddaily, and a table. - When a new city is searched, we need first to get its coordinates using
http://api.openweathermap.org/geo/1.0/direct?q={city name}&limit=1&appid={API key}and then for the hourly mode make a call tohttps://api.openweathermap.org/data/2.5/onecall?lat={lat}&lon={lon}&exclude=current,minutely,daily,alerts&appid={API key}, and for the daily modehttps://api.openweathermap.org/data/2.5/onecall?lat={lat}&lon={lon}&exclude=current,minutely,hourly,alerts&appid={API key}and add it to a city table. - When no city is found, we should reflect it.
- The city table has a column
City Name, and the rest are temperature columns. In the case of hourly mode, 8 columns with 3-hour step and in the case of daily mode 7 days. - Switching between hourly and daily modes should bring back the previous state before switching.
- The URL should be updated according to the search and mode.
- Build the application using NgRx.
- No tests are required.
We need to build a very simple time-based line chart, nothing fancy really, without resorting to any charting lib using a prepared firebase collection.
- NO charting lib, I believe angular provides enough tools to build a simple line chart; also, it will be an excellent showcase of one's architectural skills.
- We should be able to switch between 4 cryptocurrencies defined on the constant
CRYPTO_CURRENCIES_PRICES_COLLECTION_NAME. - The app should reflect the chosen currency on the URL, so on the page refresh, we see the chart we picked before.
- When a currency is selected, we draw a line chart where the X-axis is time, and the Y-axis is the tick's price. No need for labels, just a line.
- By default, BTC is selected.
- On the repository, you will find a preconfigured firebase service whose purpose is to help you query mock prices per cryptocurrency generated by a firebase function. By default, the cryptocurrencies collection is empty if no one works with it; otherwise, querying the firebase collection returns all the prices` documents on the collection, which could be thousands of records, so we should build a query to take only N last records.
- The price's document ID is a timestamp of the record's adding to the collection to be used for the X-axis.
- The moment one subscribes to the collection, the one will either get N records instantly or an empty array. To start getting prices, we must turn on real-time mode for a given cryptocurrency; there is an example on
firebase.service.tsof how and what model is returnedonSnapshotchange. The real-time mode gets turned off in 15 mins. - The chart should be alive and moving.
- SOLID, DRY, shouldn't be just abbreviations for you. It should be designed to be maintainable to an extent.
- Tests are not necessary.
- Please use repositories formatting.
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