1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
---
title: data.GetJSON
description: Returns a JSON object from a local or remote JSON file, or an error if the file does not exist.
categories: []
keywords: []
action:
aliases: [getJSON]
related:
- functions/data/GetCSV
- functions/resources/Get
- functions/resources/GetRemote
- methods/page/Resources
returnType: any
signatures: ['data.GetJSON INPUT... [OPTIONS]']
toc: true
---
{{% deprecated-in 0.123.0 %}}
Instead, use [`transform.Unmarshal`] with a [global], [page], or [remote] resource.
See the [remote data example].
[`transform.Unmarshal`]: /functions/transform/unmarshal/
[global]: /getting-started/glossary/#global-resource
[page]: /getting-started/glossary/#page-resource
[remote data example]: /functions/resources/getremote/#remote-data
[remote]: /getting-started/glossary/#remote-resource
{{% /deprecated-in %}}
Given the following directory structure:
```text
my-project/
└── other-files/
└── books.json
```
Access the data with either of the following:
```go-html-template
{{ $data := getJSON "other-files/books.json" }}
{{ $data := getJSON "other-files/" "books.json" }}
```
{{% note %}}
When working with local data, the file path is relative to the working directory.
{{% /note %}}
Access remote data with either of the following:
```go-html-template
{{ $data := getJSON "https://example.org/books.json" }}
{{ $data := getJSON "https://example.org/" "books.json" }}
```
The resulting data structure is a JSON object:
```json
[
{
"author": "Victor Hugo",
"rating": 5,
"title": "Les Misérables"
},
{
"author": "Victor Hugo",
"rating": 4,
"title": "The Hunchback of Notre Dame"
}
]
```
## Options
Add headers to the request by providing an options map:
```go-html-template
{{ $opts := dict "Authorization" "Bearer abcd" }}
{{ $data := getJSON "https://example.org/books.json" $opts }}
```
Add multiple headers using a slice:
```go-html-template
{{ $opts := dict "X-List" (slice "a" "b" "c") }}
{{ $data := getJSON "https://example.org/books.json" $opts }}
```
## Global resource alternative
Consider using the [`resources.Get`] function with [`transform.Unmarshal`] when accessing a global resource.
```text
my-project/
└── assets/
└── data/
└── books.json
```
```go-html-template
{{ $data := dict }}
{{ $p := "data/books.json" }}
{{ with resources.Get $p }}
{{ $data = . | transform.Unmarshal }}
{{ else }}
{{ errorf "Unable to get resource %q" $p }}
{{ end }}
```
## Page resource alternative
Consider using the [`Resources.Get`] method with [`transform.Unmarshal`] when accessing a page resource.
```text
my-project/
└── content/
└── posts/
└── reading-list/
├── books.json
└── index.md
```
```go-html-template
{{ $data := dict }}
{{ $p := "books.json" }}
{{ with .Resources.Get $p }}
{{ $data = . | transform.Unmarshal }}
{{ else }}
{{ errorf "Unable to get resource %q" $p }}
{{ end }}
```
## Remote resource alternative
Consider using the [`resources.GetRemote`] function with [`transform.Unmarshal`] when accessing a remote resource to improve error handling and cache control.
```go-html-template
{{ $data := dict }}
{{ $u := "https://example.org/books.json" }}
{{ with resources.GetRemote $u }}
{{ with .Err }}
{{ errorf "%s" . }}
{{ else }}
{{ $data = . | transform.Unmarshal }}
{{ end }}
{{ else }}
{{ errorf "Unable to get remote resource %q" $u }}
{{ end }}
```
[`Resources.Get`]: /methods/page/resources/
[`resources.GetRemote`]: /functions/resources/getremote/
[`resources.Get`]: /functions/resources/get/
[`transform.Unmarshal`]: /functions/transform/unmarshal/
|
