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5 Helpful utilities in Go tool for developers
Following are the 5 interesting and helpful utilities from Go toolchain that I have discovered. Feel free to add more in comments! Let's start.
1. Documentation (doc)
This command lets you see the documentation of any Go’s package from your terminal. It saves a lot of time!
go doc <package_name>
Wait, there is more to it. You can even see the documentation of a particular method
go doc <packagename>.<methodname>
2. Module Maintenance (mod)
Assuming you already know what are go modules, this is the goto command to manage your project dependencies with granularity. I will pinpoint few of the commands which have proved useful to me, you can checkout out all available commands using go mod help
vendor
Allows you to build the vendor folder using your go modules file
go mod vendor
tidy
Adds missing and remove unused modules
go mod tidy
download
It downloads your module to the local cache. This helps when you are building your project with large size external packages. It’s better to cache them which certainly helps increasing build speed.
go mod download <package_name>
3. Formatting (fmt)
The all-time favorite tool of everyone! With just one command you can format (indentation, renaming etc) your whole Go code. If you are using VSCode with Go plugin installed, then every time you save your code, go fmt is run automatically.
go fmt and gofmt are two different commands used to format Go files. Interestingly, go fmt internally calls gofmt only.
To format a file
go fmt <file_path>
To format the whole directory
go fmt .
gofmt can make your work easier. It has multiple flags to enable you to format your code with better visibility. One of the flags helps to see the diff between your original source code and formatted code.
gofmt -d <filepath>
Do not print reformatted sources to standard output. If a file’s formatting is different than gofmt’s, print diffs to standard output. Use this go doc cmd/gofmt to read more.
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You may also like: Google’s Go Essentials For Node.js / JavaScript Developers
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4. Build (build)
For those who are writing production-level code are using this command to its best level. However, those who are yet not writing production-level code are just using go build to create the binary. Believe me, build tool is something every framework strive to get included in their native processing and Go has done it beautifully.
Race Detection
go build -race enable data race detection while building project binary only and provides you details about where the program can run into race conditions. Extending this, race flag can be used with go test and go install as well.
X Flag
If you are curious about how Go is performing the build process, go build -x allows you to see all invocations done by Go compiler. This command helps to debug the process when you are doing a conditional build.
Cross Compile
GOOS and GOARCH env variables point to the target system platform and architecture. By default, they points to the current system’s platform. go build uses these configurations to generate project binary. By changing these env variables, we can generate binaries for different types of machine.
Example:
export GOARCH=”amd64"
export GOOS=”linux”
go build
To read more, go help build!
5. Profiling
This is the most powerful tool that Go provides natively. We all owe to Go’s engineers for coming up with this utility. Right from diagnosing the latency problems to finding bottlenecks with heap and threads in the code, Go profiling tools is something a production-grade system wants!
go tool trace
trace lets you collect your program traces and helps to visualize it. You can plugin your custom traces as well. Read more here.
go tool pprof
pprof lets you collect CPU profiles, traces, and heap profiles for your Go programs. Read more here.
Further Reading
How to use the Go Dev container for Visual Studio Code
Google’s Go Essentials For Node.js / JavaScript Developers
Originally published by Yashish Dua at medium.com
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#web-development #go
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1595059664
How long does it take to develop/build an app?
With more of us using smartphones, the popularity of mobile applications has exploded. In the digital era, the number of people looking for products and services online is growing rapidly. Smartphone owners look for mobile applications that give them quick access to companies’ products and services. As a result, mobile apps provide customers with a lot of benefits in just one device.
Likewise, companies use mobile apps to increase customer loyalty and improve their services. Mobile Developers are in high demand as companies use apps not only to create brand awareness but also to gather information. For that reason, mobile apps are used as tools to collect valuable data from customers to help companies improve their offer.
There are many types of mobile applications, each with its own advantages. For example, native apps perform better, while web apps don’t need to be customized for the platform or operating system (OS). Likewise, hybrid apps provide users with comfortable user experience. However, you may be wondering how long it takes to develop an app.
To give you an idea of how long the app development process takes, here’s a short guide.
App Idea & Research
_Average time spent: two to five weeks _
This is the initial stage and a crucial step in setting the project in the right direction. In this stage, you brainstorm ideas and select the best one. Apart from that, you’ll need to do some research to see if your idea is viable. Remember that coming up with an idea is easy; the hard part is to make it a reality.
All your ideas may seem viable, but you still have to run some tests to keep it as real as possible. For that reason, when Web Developers are building a web app, they analyze the available ideas to see which one is the best match for the targeted audience.
Targeting the right audience is crucial when you are developing an app. It saves time when shaping the app in the right direction as you have a clear set of objectives. Likewise, analyzing how the app affects the market is essential. During the research process, App Developers must gather information about potential competitors and threats. This helps the app owners develop strategies to tackle difficulties that come up after the launch.
The research process can take several weeks, but it determines how successful your app can be. For that reason, you must take your time to know all the weaknesses and strengths of the competitors, possible app strategies, and targeted audience.
The outcomes of this stage are app prototypes and the minimum feasible product.
#android app #frontend #ios app #minimum viable product (mvp) #mobile app development #web development #android app development #app development #app development for ios and android #app development process #ios and android app development #ios app development #stages in app development
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50+ Useful Kubernetes Tools for 2020 - Part 2
Introduction
Last year, we provided a list of Kubernetes tools that proved so popular we have decided to curate another list of some useful additions for working with the platform—among which are many tools that we personally use here at Caylent. Check out the original tools list here in case you missed it.
According to a recent survey done by Stackrox, the dominance Kubernetes enjoys in the market continues to be reinforced, with 86% of respondents using it for container orchestration.
And as you can see below, more and more companies are jumping into containerization for their apps. If you’re among them, here are some tools to aid you going forward as Kubernetes continues its rapid growth.
#blog #tools #amazon elastic kubernetes service #application security #aws kms #botkube #caylent #cli #container monitoring #container orchestration tools #container security #containers #continuous delivery #continuous deployment #continuous integration #contour #developers #development #developments #draft #eksctl #firewall #gcp #github #harbor #helm #helm charts #helm-2to3 #helm-aws-secret-plugin #helm-docs #helm-operator-get-started #helm-secrets #iam #json #k-rail #k3s #k3sup #k8s #keel.sh #keycloak #kiali #kiam #klum #knative #krew #ksniff #kube #kube-prod-runtime #kube-ps1 #kube-scan #kube-state-metrics #kube2iam #kubeapps #kubebuilder #kubeconfig #kubectl #kubectl-aws-secrets #kubefwd #kubernetes #kubernetes command line tool #kubernetes configuration #kubernetes deployment #kubernetes in development #kubernetes in production #kubernetes ingress #kubernetes interfaces #kubernetes monitoring #kubernetes networking #kubernetes observability #kubernetes plugins #kubernetes secrets #kubernetes security #kubernetes security best practices #kubernetes security vendors #kubernetes service discovery #kubernetic #kubesec #kubeterminal #kubeval #kudo #kuma #microsoft azure key vault #mozilla sops #octant #octarine #open source #palo alto kubernetes security #permission-manager #pgp #rafay #rakess #rancher #rook #secrets operations #serverless function #service mesh #shell-operator #snyk #snyk container #sonobuoy #strongdm #tcpdump #tenkai #testing #tigera #tilt #vert.x #wireshark #yaml
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A Simple Guide to API Development Tools
APIs can be as simple as 1 endpoint for use by 100s of users or as complex as the AWS APIs with 1000s of endpoints and 100s of thousands of users. Building them can mean spending a couple of hours using a low-code platform or months of work using a multitude of tools. Hosting them can be as simple as using one platform that does everything we need or as complex as setting up and managing ingress control, security, caching, failover, metrics, scaling etc.
What they all have in common are three basic steps to go from nothing to a running API.
Each of these steps has its own set of tools. Here are some I’ve used and popular alternatives.
Design
REST is the most popular API interface and has the best tooling. Our design output for REST services always includes an OpenAPI specification. The specification language can be tricky to get right in JSON (how many curly brackets?) or YAML (how many spaces?) so a good editor saves a lot of time.
Four popular ones are:
I’ve only used Swagger and Postman but both Insomnia and Stoplight look interesting. All of them offer additional functionality like documentation, testing and collaboration so are much more than just specification generators.
#api #apis #api-development #restful-api #rest-api #development-tools #app-development-tools #developer-tools
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Developer Career Path: To Become a Team Lead or Stay a Developer?
For a developer, becoming a team leader can be a trap or open up opportunities for creating software. Two years ago, when I was a developer, I was thinking, “I want to be a team leader. It’s so cool, he’s in charge of everything and gets more money. It’s the next step after a senior.” Back then, no one could tell me how wrong I was. I had to find it out myself.
I Got to Be a Team Leader — Twice
I’m naturally very organized. Whatever I do, I try to put things in order, create systems and processes. So I’ve always been inclined to take on more responsibilities than just coding. My first startup job, let’s call it T, was complete chaos in terms of development processes.
Now I probably wouldn’t work in a place like that, but at the time, I enjoyed the vibe. Just imagine it — numerous clients and a team leader who set tasks to the developers in person (and often privately). We would often miss deadlines and had to work late. Once, my boss called and asked me to come back to work at 8 p.m. to finish one feature — all because the deadline was “the next morning.” But at T, we were a family.
We also did everything ourselves — or at least tried to. I’ll never forget how I had to install Ubuntu on a rack server that we got from one of our investors. When I would turn it on, it sounded like a helicopter taking off!
At T, I became a CTO and managed a team of 10 people. So it was my first experience as a team leader.
Then I came to work at D — as a developer. And it was so different in every way when it came to processes.
They employed classic Scrum with sprints, burndown charts, demos, story points, planning, and backlog grooming. I was amazed by the quality of processes, but at first, I was just coding and minding my own business. Then I became friends with the Scrum master. I would ask him lots of questions, and he would willingly answer them and recommend good books.
My favorite was Scrum and XP from the Trenches by Henrik Kniberg. The process at D was based on its methods. As a result, both managers and sellers knew when to expect the result.
Then I joined Skyeng, also as a developer. Unlike my other jobs, it excels at continuous integration with features shipped every day. Within my team, we used a Kanban-like method.
We were also lucky to have our team leader, Petya. At our F2F meetings, we could discuss anything, from missing deadlines to setting up a task tracker. Sometimes I would just give feedback or he would give me advice.
That’s how Petya got to know I’d had some management experience at T and learned Scrum at D.
So one day, he offered me to host a stand-up.
#software-development #developer #dev-team-leadership #agile-software-development #web-development #mobile-app-development #ios-development #android-development
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Top 5 Mobile App Development Companies in New York
New York is the best potential business hub for the technology and IT industry. Thousands of companies are established in New York for the mobile app development or technology industry. So, here quite a confusion is that how to choose the right company for your business amongst all the companies. No need to worry about it, We have found the most reliable and trustworthy mobile app development companies that are the top-tiers in New York. Before we share the companies list you need to know the benefits of mobile app development for your business.
Key Benefits of Mobile App Development:
· Improves Efficiency
· Offers High Scalability
· Secures Your App Data
· Integrates With Existing Software
· Easy to Maintain
· Improves Customer Relationship
· Facilitates New Client Data Retrieval
· Provides Real-time Project Access
Are you looking for top mobile app development companies in New York that help to create a custom mobile app as per your business requirements? Please go through these Top 5 mobile app development companies that provide exceptional development and design services for your business.
Top Mobile App Development Companies in New York:
1. AppCluesInfotech
AppClues Infotech is one of the leading mobile app development company based in New York that builds high-quality mobile apps. Being a versatile mobile app development company, they provide services on various platforms like Android, iOS, Cross-platform, Windows, etc. They are aware of the latest technologies and features of industry. They utilize them to create a user-engaging mobile app. They have the best team of designers and developers who are delivered a mobile app with high-quality and performance.
Founded In: 2014
Employees: 50 to 200 Members
Location: USA
Website: https://www.appcluesinfotech.com/
2. Data EximIT
Data EximIT is one of the leading mobile app development company in New York that provides top-notch and elegant mobile app development services with the latest market trends and functionalities at a competitive price. They have highly experienced mobile app designers and developers team who have the best strength of developing all types of a mobile app. They deliver a feature-rich mobile app for their clients that give the best business ROI.
Founded In: 2004
Employees: 50 to 150 Members
Location: USA & India
Website: https://www.dataeximit.com/
3. WebClues Infotech
WebClues Infotech is the most reliable & superior company that builds custom mobile apps to do things differently. They are the best mobile app development company in New York, USA and as well as globally with high proficiency. They have a highly experienced app developers team that has the best strength of work on multiple platforms like android, Cross-platform, and iOS.
They have successfully delivered 950+ mobile app projects effectively and on-time. Build your Robust, Secure, Scalable & High-performance mobile app with WebClues Infotech with creative & dynamic designs at an affordable price.
Founded In: 2014
Employees: 50 to 250 Members
Location: USA, INDIA, UAE, UK & CANADA
Website: https://www.webcluesinfotech.com/
4. AppClues Studio
AppClues Studio is a leading mobile app development company in New York, USA. The company is versatile in developing custom mobile app development solutions to its customers across the globe. With an experience of 8+ years in mobile app development, Utility is hyper-focused on Return on Investment (ROI) and building good relationships with partner companies. The company is worked with a start-up to large enterprises.
Founded In: 2014
Employees: 50 to 150 Members
Location: USA & UK
Website: https://appcluesstudio.com/
5. WebClues Global
WebClues Global is a prominent mobile application development company in New York, USA. They are one of the top-tier mobile app developers who deliver high-end Android mobile app solutions to their clients. The company operated with 100+ qualified developers who working in different domains to give the best solution for their development. WebClues Global offers various services including web and mobile design & development, E-Commerce Development, Ui/Ux Development.
Founded In: 2014
Employees: 50 to 150 Members
Location: USA, INDIA, UAE, UK & CANADA
Website: https://www.webcluesglobal.com/
#top 5 mobile app development companies in new york #top 5 mobile app development companies in usa #top mobile app development companies in new york #top mobile app development companies in usa #top 5 mobile app development companies