my-go-examples

my-go-examples is a place to keep my go code snippets and examples.

GitHub Webpage

GO EXAMPLES

• GOROUTINES

  • goroutines-channels-select

    An example of concurrency and message passing via channels in go.

  • goroutines-waitgroup

    An example of concurrency using a waitgroup.

  • goroutines-worker-pools

    An example of concurrency using a worker pool with goroutines and channels.

  • async-channel-no-waiting

    An example of a gorouting asynchronously sending data (via a channel) to a function that
    uses the latest data (if available) and does not wait.

• MESSAGING

  • protobuf

    Protocol buffers serialize structured data, useful for messaging.

  • protobuf-NATS-publish-subscribe

    Sends a protobuf msg over NATS from a client to a server using publish and subscribe.

  • protobuf-NATS-request-response

    Sends a protobuf msg over NATS from a client to a server using request and response.

• API

  • http-GET-POST

    Using http package to GET or POST (update via json).

  • OAuth-2.0-google-cloud-storage-api

    Using OAuth 2.0 to access a users google-cloud-storage (based on scopes) via googles api.

  • OAuth-2.0-google-cloud-storage-api-over-NATS

    Using OAuth 2.0 (frontend and backend via protobuf over NATS) to
    access a users google cloud storage (based on scopes) via googles api.

  • track-email-mailgun-api

    Send and track an email using mailgun over their go client api

  • something-youttube-content-id-api

    TBD

  • something-youttube-data-api-v3

    TBD

  • something-RESTful

    TBD

  • simple-webserver-with-REST

    Adding REST to the simple-webserver.

• WEBSERVER

  • simple-webserver

    Using the http package to build a simple webserver.

• DATABASE

  • postgreSQL

    read/write from/to a table.

• BASIC PROGRAMMING

  • json

    Encode a struct to json and decode back to a struct.

  • gotests-complex-function

    Testing a function with complex inputs and outputs.

  • gomock

    A helloween theme is used for gomock on an interface for unit testing.

  • read-file

    Reading a file a few different ways.

  • linked-list

    An example of a Singly Linked List (i.e. using just a head pointer).

  • pointers

    An example of a pointer to a struct.*

  • structs-methods-interfaces

    An example of structs, methods and interfaces.

  • recursion

    A function calling itself to make a fibonacci series.

  • logging-error-handling

    Logging and error handling.

TESTED USING CONCOURSE

A Concourse CI Pipeline will automate unit testing and update the GitHub WebPage.

A ci/.credentials.yml file needs to be created for your slack_url and repo_github_token.

Use fly to upload the the pipeline file ci/pipline.yml to Concourse:

fly -t ci set-pipeline -p my-go-examples -c ci/pipeline.yml --load-vars-from ci/.credentials.yml

CONCOURSE RESOURCES IN PIPELINE

my-go-examples also contains a few extra concourse resources:

• A resource (resource-slack-alert) uses a docker image
  that will notify slack on your progress.
• A resource (resource-repo-status) use a docker image
  that will update your git status for that particular commit.

The above resources can be removed from the pipeline.