Like Interfaces, the Tour didn’t really do it for me on Errors either. Too absract, and not enough explanation of the code examples for my liking. It also doesn’t cover the errors package which other tutorial do. I’m not clear if that’s because the errors package isn’t used much, or the Tour focusses only on teaching the raw basics.
This page really threw me, for several reasons:
The text notes that there’s an error (so why don’t they fix it?)
The provided code doesn’t run (presumably because of the above error)
It’s not clear if this is a deliberate error to illustrate a point, or just a snafu
So far the Tour has been đ¤ and đ§ and even 𤨠but function closures had me 𤯠âŚ
Each of the words on the page made sense but strung together in a sentence didn’t really make any sense to me.
Implement WordCount
This is probably bread-and-butter for any seasoned programmer, but I enjoyed the simple process and satisfaction of breaking the problem down into steps to solve using what the tutorial had just covered. Sketching out the logic in pseudo-code first, I figured that I wanted to do this:
Slices made sense, until I got to Slice length and capacity. Two bits puzzled me in this code:
I’ve never used pointers before. Found plenty of good resources about what they are, e.g.
But why? It’s like explaining patiently to someone that 2+2 = 4, without really explaining why would we want to add two numbers together in the first place.
My background is not a traditional CompSci one. I studied Music at university, and managed to wangle my way into IT through various means, ending up doing what I do now with no formal training in coding, and a grab-bag of hacky programming attempts on my CV. My weapons of choice have been BBC Basic, VBA, ASP, and more recently some very unpythonic-Python. It’s got me by, but I figured recently I’d like to learn something new, and several people pointed to Go as a good option.
Kafka Connect (which is part of Apache Kafka) supports pluggable connectors, enabling you to stream data between Kafka and numerous types of system, including to mention just a few:
Databases
Message Queues
Flat files
Object stores
The appropriate plugin for the technology which you want to integrate can be found on Confluent Hub.
For whatever reason, CSV still exists as a ubiquitous data interchange format. It doesn’t get much simpler: chuck some plaintext with fields separated by commas into a file and stick .csv on the end. If you’re feeling helpful you can include a header row with field names in.
order_id,customer_id,order_total_usd,make,model,delivery_city,delivery_company,delivery_address
1,535,190899.73,Dodge,Ram Wagon B350,Sheffield,DuBuque LLC,2810 Northland Avenue
2,671,33245.53,Volkswagen,Cabriolet,Edinburgh,Bechtelar-VonRueden,1 Macpherson CrossingIn this article we’ll see how to load this CSV data into Kafka, without even needing to write any code
In v5.5 of Confluent Platform the REST Proxy added new Admin API capabilities, including functionality to list, and create, topics on your cluster.
Check out the docs here and download Confluent Platform here. The REST proxy is Confluent Community Licenced.
Question from the Confluent Community Slack group:
How can I access the data in object in an array like below using ksqlDB stream
"Total": [ { "TotalType": "Standard", "TotalAmount": 15.99 }, { "TotalType": "Old Standard", "TotalAmount": 16, " STID":56 } ]
Alfred is one of my favourite productivity apps for the Mac. It’s a file indexer, a clipboard manager, a snippet expander - and that’s just scratching the surface really. I recently got a new machine without it installed and realised just how much I rely on Alfred, particularly its clipboard manager.
I’ve been poking around recently with capturing Wi-Fi packet data and streaming it into Apache Kafka, from where I’m processing and analysing it. Kafka itself is rock-solid - because I’m using âď¸Confluent Cloud and someone else worries about provisioning it, scaling it, and keeping it running for me. But whilst Kafka works just great, my side of the setupâtshark running on a Raspberry Piâis less than stable. For whatever reason it sometimes stalls and I have to restart the Raspberry Pi and restart the capture process.
