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Building RESTful Web services with Go

You're reading from   Building RESTful Web services with Go Learn how to build powerful RESTful APIs with Golang that scale gracefully

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Product type Paperback
Published in Dec 2017
Publisher Packt
ISBN-13 9781788294287
Length 316 pages
Edition 1st Edition
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Author (1):
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Naren Yellavula Naren Yellavula
Author Profile Icon Naren Yellavula
Naren Yellavula
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Table of Contents (13) Chapters Close

Preface 1. Getting Started with REST API Development FREE CHAPTER 2. Handling Routing for Our REST Services 3. Working with Middleware and RPC 4. Simplifying RESTful Services with Popular Go Frameworks 5. Working with MongoDB and Go to Create REST APIs 6. Working with Protocol Buffers and GRPC 7. Working with PostgreSQL, JSON, and Go 8. Building a REST API Client in Go and Unit Testing 9. Scaling Our REST API Using Microservices 10. Deploying Our REST services 11. Using an API Gateway to Monitor and Metricize REST API 12. Handling Authentication for Our REST Services

Adding API to Kong


Kong provides an intuitive REST API to add a custom API to the gateway. In order to add the aformentioned healthcheck API, we need to make a POST request to the Kong admin API, which runs on port 8001. From now on we use the Postman REST client to show all API requests. These API requests are also available as a JSON file collection in the chapter's repository for readers to download and import in their Postman clients respectively. For more information on exporting and importing Postman collections, visit https://www.getpostman.com/docs/postman/collections/data_formats.

Make a POST request from Postman to the Kong admin URL http://localhost:8001/apis with these fields in the JSON body:

{
    "name": "myapi",
    "hosts": "server1",
    "upstream_url": "http://go-server:3000",
    "uris":["/api/v1"],
    "strip_uri": true,
    "preserve_host": false
}

It adds our health check API to Kong. The Postman screen looks like the following screenshot with all the changes. Postman...

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