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Essential Go  Suggest an edit

HTTP server middleware

Id: 296

SOId: 9343

Introduction

In Go Middleware can be used to execute code before and after handler function. It uses the power of Single Function Interfaces. Can be introduced at any time without affecting the other middleware. For Ex: Authentication logging can be added in later stages of development without disturbing the existing code.

Remarks

The Signature of middleware should be (http.ResponseWriter, *http.Request) i.e. of http.handlerFunc type.

HTTP server middleware/
Normal Handler Function
Middleware Calculate time required for handlerFunc to execute
CORS Middleware
Auth Middleware
Recovery Handler to prevent server from crashing
Table Of Contents
1 Getting started
2 Basic types
3 Variables
4 Constants
5 Strings
6 Pointers
7 Arrays
8 Slices
9 Maps
10 Structs
11 Interfaces
12 Empty interface
13 if, switch, goto
14 for, while loops
15 range statement
16 Functions
17 Methods
18 Error handling
19 Defer
20 Panic and recover
21 Concurrency
22 Channels and select
23 Mutex
24 Packages
25 Working with files and I/O
26 Time and date
27 Parse command line arguments
28 Logging
29 Executing commands
30 hex, base64 encoding
31 JSON
32 XML
33 CSV
34 YAML
35 SQL
36 HTTP Client
37 HTTP Server
38 Text and HTML templates
39 Reflection
40 Context
41 Fmt
42 OS Signals
43 Memory pooling
44 Testing
45 Send/receive emails
46 Calling C from GO with cgo
47 Profiling using go tool pprof
48 Developing for Multiple Platforms with Conditional Compiling
49 Cross compilation
50 Build Constraints
51 gob
52 Object oriented programming
53 Vendoring
54 Plugin
55 HTTP server middleware
56 Protobuf in Go
57 Console I/O
58 Cryptography
59 JWT Authorization
60 Images
61 Inline Expansion
62 The Go Command
63 Contributors
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