goapp | An opinionated guideline to structure & develop a Go web application/service | REST library

 by   bnkamalesh Go Version: v1.5.1 License: MIT

kandi X-RAY | goapp Summary

kandi X-RAY | goapp Summary

goapp is a Go library typically used in Web Services, REST, Docker applications. goapp has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This is an opinionated guideline to structure a Go web application/service (or could be extended for any application). My opinions were formed over a span of 7+ years building web applications/services with Go, trying to implement DDD (Domain Driven Development) & Clean Architecture. Even though I've mentioned go.mod and go.sum, this guideline works for 1.4+ (i.e. since introduction of the special 'internal' directory). P.S: This guideline is not directly applicable for an independent package, as their primary use is to be consumed in other applications. In such cases, having most or all of the package code in the root is probably the best way of doing it. And that is where Go's recommendation of "no unnecessary sub packages" shines. In my effort to try and make things easier to understand, the structure is explained based on a note taking web application (with hardly any features implemented ).

            kandi-support Support

              goapp has a low active ecosystem.
              It has 608 star(s) with 43 fork(s). There are 13 watchers for this library.
              It had no major release in the last 6 months.
              There are 0 open issues and 2 have been closed. On average issues are closed in 2 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of goapp is v1.5.1

            kandi-Quality Quality

              goapp has no bugs reported.

            kandi-Security Security

              goapp has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              goapp is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              goapp releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.

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            goapp Key Features

            No Key Features are available at this moment for goapp.

            goapp Examples and Code Snippets

            No Code Snippets are available at this moment for goapp.

            Community Discussions


            Docker golang busybox "no such file or directory" error
            Asked 2020-Nov-18 at 04:16

            I'm building a multistage Docker image of a golang microservice and I want to make it very thin using busybox as base image to run the final executable. The image is correctly built, but when I run it I get this error:



            Answered 2020-Nov-16 at 15:54

            You are building your app with CGO_ENABLED=1 (this is Go's default setting for builds) - and transplanting that executable to a docker image where there is no compatible library support (glibc, dns resolver etc.).

            To ensure your build does not rely on any external libraries - statically binding all dependencies - and can then be deployed to a SCRATCH docker image or busybox - disable CGO during your build phase:

            Source https://stackoverflow.com/questions/64860989


            Docker throwing "{binary} not found" error
            Asked 2020-Jul-22 at 20:10

            I have a very simple Go app that I'm trying to Dockerize.



            Answered 2020-Jul-22 at 18:05

            The CMD is interpreted as JSON, so you need to change the single quotes to double quotes.

            Source https://stackoverflow.com/questions/63040455


            panic: sync: negative WaitGroup counter with multiple requests to the same Endpoint
            Asked 2020-Feb-27 at 21:40

            Im doing a hashed password generator, i have an endpoint at the server that generates a goroutine to create the hashed password, and then send it as a response when the goroutine ends.

            this is the function that is called to generate the hashed password



            Answered 2020-Feb-27 at 17:24

            From the sync package docs:

            Values containing the types defined in this (sync) package should not be copied.

            So if something needs a reference use a pointer.

            Change your function signature so wg is a pointer reference:

            Source https://stackoverflow.com/questions/60438641


            How do I set the safe zone size by device?
            Asked 2019-Nov-12 at 09:14

            I want to set a safety zone by device. My web view is set to SafeArea above, SuperView below. After the iPhone X series, the value of Y is 44 because of the notch area. But for the iPhone 6 and iPhone 8, 44 is too wide. How do I adjust it?

            Area of the current WKWebView

            Load WebView Area from Current Swift5 ...


            Answered 2019-Nov-12 at 09:14

            Make the constraint anchored to the safe area and give it the desired value. It will automatically adjust to all devices.

            Here you can see a UIView with blue background, anchored top and bottom to the safe area with a 0 value (you can increase the value if you want more distance to the safe area).

            The view will be automatically drawn giving the proper distance to the safe area (which is 44 for iPhone X or above, and 0 for iPhone 8 and below).

            Source https://stackoverflow.com/questions/58799139


            Is that possible to import a local package inside ~/go/src/ from a module?
            Asked 2019-Aug-31 at 23:35

            I am using go module, the file structure is like this:



            Answered 2019-Aug-03 at 13:51

            Thank @MartinTournoij, @Peter, @DaveC very much for their help and comments which I have upvoted. After following all the directions, I finally make it work.

            (Btw, I really shouldn't trust VSCode error message too much. Because I normally check errors from VSCode. Thus I didn't try go build before asking this question. I thought they should return the same error, but they are not. go build provides more reasonable error messages than VSCode.)

            There were three problems.

            • Missing version from require in go.mod
            • Missing => from replace in go.mod
            • Missing go.mod for foo package.

            So to make it work:

            File Structure:

            Source https://stackoverflow.com/questions/57338387


            Go application run as systemd service
            Asked 2019-Jul-09 at 13:54

            We are running a Golang application that internally runs an autoupdate module to recieve over the air updates. At the time of a new update, the autoupdate module downloads the new version from s3 and invokes an autoupdate bash script present in the same working directory as the executable. The steps performed by the autoupdate bash script are explained in terms of process management handled with and without systemd.

            Execution without Systemd

            1. Kills the currently running golang app via PID
            2. Runs the newly downloaded golang binary.
            3. The new version exposes an health check API which is invoked by script to makesure this version is healthy.
            4. If not healthy, rollback is performed. The new version is stopped and older version is started.

            In golang, the script execution code is written such that when autoupdate script is invoked, it is disowned from the lifecycle of the golang application. i.e bash script (child process) continues execution even after the parent(golang app) is killed. It works fine when running from the GoLand IDE.

            Issue : Execution via Systemd

            We needed a cleaner system to handle the start ,stop, restart-on failure functionalities. So we decided to run the app as a systemd service.The steps are the same as above but performed using systemctl

            1. Kills the currently running golang app : "systemctl stop goapp.service"
            2. Updates the systemd service with the new executable path : "systemctl daemon-reload"
            3. Restarts the systemd service : "systemctl restart goapp.service"
            4. If not healthy, rollback is performed. The new version is stopped, systemd service file is updated with older version and older version is started.

            On executing the application via systemd, the script exits as soon as the systemctl service is stopped using command "sudo systemctl stop goapp.service" during step 1 mentioned above. This means that the lifecycle of the script executed by the golang app is clearly coupled to the lifecycle of the systemd service. How can I detach it from the of scope of systemd service?

            Systemd service file



            Answered 2019-Jul-09 at 13:48

            invokes an autoupdate bash script present in the same working directory as the executable.

            I would recommend running it with systemd-run. Excerpt from the man-page:

            It will run in a clean and detached execution environment.

            Source https://stackoverflow.com/questions/56953623


            Go API in container not returning any response
            Asked 2019-May-26 at 10:49

            I have a simple API written in GO using Mux.

            When running locally it works, however I am trying to containerize this app.

            My main.go looks like this



            Answered 2019-May-26 at 10:49

            I think you need to remove the host portion from your Addr property.

            Source https://stackoverflow.com/questions/56312801


            How to authenticate a private Go Module using go 1.11 and Google App Engine Standard
            Asked 2019-Jan-15 at 22:46

            I've been updating my entire go gae standard project to use go 1.11's modules.

            Main directory structure



            Answered 2018-Dec-07 at 18:26

            Set git credentials before deploying:

            Source https://stackoverflow.com/questions/53663603


            goapp test not working,getting error "GOPATH must be absolute" while it is absolute
            Asked 2019-Jan-11 at 10:27

            I'm tying to write tests for my google cloud app. I read the documents and it seems the only way to run the test locally is the running the command goapp test in the test package directory. But when I run the command I get the error go: GOPATH entry is relative; must be absolute path: "".

            I'm pretty sure my GOPATH is set absolutely. Here are the results when I run the command go env | grep GOPATH:


            Also getting the same output when I run echo $GOPATH.

            Any help is appreciated.

            PS: I have ubuntu 18.04 and my go version is 1.10.4

            results of gcloud version:

            Google Cloud SDK 228.0.0 app-engine-go app-engine-python 1.9.80 bq 2.0.39 cloud-datastore-emulator 2.0.2 core 2018.12.07 gsutil 4.34



            Answered 2018-Dec-29 at 13:06

            Source https://stackoverflow.com/questions/53969253


            How to disable CGO for running tests
            Asked 2018-Nov-26 at 11:07

            I use Docker to add my project to it, now I want to run some test on it and I got errors that the test failed

            Any idea what I miss here?



            Answered 2018-Nov-26 at 11:06

            You've disabled CGO for your build, but you're not disabling CGO for your tests, which you must do:

            Source https://stackoverflow.com/questions/53479572

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


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            Install goapp

            You can download it from GitHub.


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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