Let’s assume we have a use case. We create products at someotherwebsite.com. In the end of each day we want to sync newly created products to Shopify store using API. Each product that we are creating has a unique code to identify it. This code corresponds to Shopify product’s sku. This is how we link…
Sometimes you need to export a large amount of data from your database. Obviously, if you are going to accumulate all data in an array and then write it to a csv file, you will eventually run out of memory. A better solution is to use streams. Here is how you can export data from…
As a rule, dates in a database are stored in UTC. So, when you export records from database constrained by dates, it is a good idea to use appropriate timezone in export query. You can do it in one of two ways. One way is create incoming dates in user’s timezone, then covert time to…
In php one can use filters with streams. Sometimes it can become handy. Let’s say you open a .csv file as a stream, but this file is tab separated. Your program can can process coma separated csvs, but not tab separated. This is a good use case for a stream filter, because it can make replacements…
Since an API client is a boundary between your code and the outside world you should write as little code as possible to implement it. The client should strictly do its job by sending a request and returning a response. That is why we don’t really test the clients themselves but rather the code that processes the response from the client.
