Need for a debugger The simplest form of debugging in any programming language is by using print statements/logs and writing to standard out. This definitely works but becomes extremely difficult when the size of our application grows and the logic becomes more complex. Adding print statements to every code path of the …

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Welcome to tutorial number 7 in Golang tutorial series. What are packages and why are they used? So far we have seen Go programs that have only one file with a main function and a couple of other functions. In real-world scenarios, this approach of writing all source code in a single file is not scalable. It becomes …

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I am working on a DIY Pick and Place Robot course with my friend Balaji. I am taking care of the software side of things while the hardware is taken care by Balaji. Description A pick and place robotic system automates the process of picking up parts and placing them in a desired location. These robots plays a major …

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This is the second tutorial in our Golang tutorial series. Please read our previous tutorial Golang Introduction and Installation to know about what is Golang and how to install Golang. There is no better way to learn a programming language than getting our hands dirty with code. Let’s go ahead and write our …

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Here are all the quizzes posted on Twitter and Facebook in June 2019 and their explanation. Quiz 1 1package main 2 3import ( 4 "fmt" 5) 6 7func hello() []string { 8 return nil 9} 10 11func main() { 12 h := hello 13 if h == nil { 14 fmt.Println("nil") 15 } else { 16 fmt.Println("not nil") 17 } …

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Welcome to tutorial no. 4 in our Resumable file uploader series. In the previous tutorials, we coded our resumable tus server using Go. In this tutorial we will use curl and dd commands to test the tus server. Testing We have the resumable file upload tus server ready but we have not tested it yet. We need a tus client …

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Welcome to tutorial no. 3 in our Resumable file uploader series. The previous tutorials provided an introduction about the tus protocol and we also created the DB CRUD methods. In this tutorial, we will create the http handlers to support the POST, PATCH and HEAD http methods. This tutorial has the following sections …

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Welcome to tutorial no. 2 in our Resumable file uploader series. The last tutorial explained how tus protocol works. I strongly recommend reading the previous tutorial if you are new to tus. In this tutorial, we will create the data model and the database CRUD methods. This tutorial has the following sections Data …

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Welcome to tutorial no. 1 in our Resumable file uploader series. How many times have you tried to upload a large file only to know that it failed because of a network issue! When you re-upload the file again, the upload starts from the beginning :(. Not cool at all. This is where resumable file uploaders come in handy. …

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Welcome to tutorial no. 37 in Golang tutorial series. In this tutorial, we will learn how to write data to files using Go. We will also learn how to write to a file concurrently. This tutorial has the following sections Writing string to a file Writing bytes to a file Writing data to a file line by line Appending to a …

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