REST API Calls Without External Libraries: Go net/http Tutorialn #31
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0012:26
T
Taught by Celeste AI - AI Coding Coach
View on YouTubeDescription
Learn how to make HTTP requests in Go! The net/http package provides everything you need to interact with REST APIs - no external libraries
required.
📚 What you'll learn:
- Making GET requests with http.Get
- Reading response status, headers, and body
- defer resp.Body.Close() pattern
- io.ReadAll for reading response bodies
- Sending POST requests with JSON using http.Post
- Struct JSON tags for serialization (json:"field")
- json.Marshal and json.Unmarshal
- bytes.NewBuffer as an io.Reader
- Custom http.Client with timeouts
- http.NewRequest for full control
- Setting custom headers (Accept, User-Agent)
- url.Values for safe query parameters
- json.NewDecoder for streaming JSON decode
- Helper function patterns for API calls
- map[string]any for dynamic JSON
⏱️ Timestamps:
0:00 - Introduction
0:30 - GET Requests (http.Get, status codes, headers, body)
2:37 - POST Requests (JSON tags, Marshal, http.Post)
5:26 - Custom Client (timeouts, NewRequest, headers, query params)
8:01 - JSON Patterns (NewDecoder, helper functions, map[string]any)
11:15 - Recap
11:45 - Up Next: HTTP Server
💻 Code: https://github.com/GoCelesteAI/go_http_client
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Tags
golanggoprogrammingtutorialhttphttp clientnet/httpREST APIJSONhttp.Gethttp.Posthttp.Clienthttp.NewRequestjson.Marshaljson.Unmarshal
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Duration
12:26
Published
February 5, 2026
Added to Codegiz
March 15, 2026