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
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
|
---
title: npm-pkg
section: 1
description: Manages your package.json
---
### Synopsis
<!-- AUTOGENERATED USAGE DESCRIPTIONS START -->
<!-- automatically generated, do not edit manually -->
<!-- see lib/commands/pkg.js -->
```bash
npm pkg set <key>=<value> [<key>=<value> ...]
npm pkg get [<key> [<key> ...]]
npm pkg delete <key> [<key> ...]
```
<!-- automatically generated, do not edit manually -->
<!-- see lib/commands/pkg.js -->
<!-- AUTOGENERATED USAGE DESCRIPTIONS END -->
### Description
A command that automates the management of `package.json` files.
`npm pkg` provide 3 different sub commands that allow you to modify or retrieve
values for given object keys in your `package.json`.
The syntax to retrieve and set fields is a dot separated representation of
the nested object properties to be found within your `package.json`, it's the
same notation used in [`npm view`](/commands/npm-view) to retrieve information
from the registry manifest, below you can find more examples on how to use it.
Returned values are always in **json** format.
* `npm pkg get <field>`
Retrieves a value `key`, defined in your `package.json` file.
For example, in order to retrieve the name of the current package, you
can run:
```bash
npm pkg get name
```
It's also possible to retrieve multiple values at once:
```bash
npm pkg get name version
```
You can view child fields by separating them with a period. To retrieve
the value of a test `script` value, you would run the following command:
```bash
npm pkg get scripts.test
```
For fields that are arrays, requesting a non-numeric field will return
all of the values from the objects in the list. For example, to get all
the contributor emails for a package, you would run:
```bash
npm pkg get contributors.email
```
You may also use numeric indices in square braces to specifically select
an item in an array field. To just get the email address of the first
contributor in the list, you can run:
```bash
npm pkg get contributors[0].email
```
* `npm pkg set <field>=<value>`
Sets a `value` in your `package.json` based on the `field` value. When
saving to your `package.json` file the same set of rules used during
`npm install` and other cli commands that touches the `package.json` file
are used, making sure to respect the existing indentation and possibly
applying some validation prior to saving values to the file.
The same syntax used to retrieve values from your package can also be used
to define new properties or overriding existing ones, below are some
examples of how the dot separated syntax can be used to edit your
`package.json` file.
Defining a new bin named `mynewcommand` in your `package.json` that points
to a file `cli.js`:
```bash
npm pkg set bin.mynewcommand=cli.js
```
Setting multiple fields at once is also possible:
```bash
npm pkg set description='Awesome package' engines.node='>=10'
```
It's also possible to add to array values, for example to add a new
contributor entry:
```bash
npm pkg set contributors[0].name='Foo' contributors[0].email='foo@bar.ca'
```
You may also append items to the end of an array using the special
empty bracket notation:
```bash
npm pkg set contributors[].name='Foo' contributors[].name='Bar'
```
It's also possible to parse values as json prior to saving them to your
`package.json` file, for example in order to set a `"private": true`
property:
```bash
npm pkg set private=true --json
```
It also enables saving values as numbers:
```bash
npm pkg set tap.timeout=60 --json
```
* `npm pkg delete <key>`
Deletes a `key` from your `package.json`
The same syntax used to set values from your package can also be used
to remove existing ones. For example, in order to remove a script named
build:
```bash
npm pkg delete scripts.build
```
### Workspaces support
You can set/get/delete items across your configured workspaces by using the
`workspace` or `workspaces` config options.
For example, setting a `funding` value across all configured workspaces
of a project:
```bash
npm pkg set funding=https://example.com --ws
```
When using `npm pkg get` to retrieve info from your configured workspaces, the
returned result will be in a json format in which top level keys are the
names of each workspace, the values of these keys will be the result values
returned from each of the configured workspaces, e.g:
```
npm pkg get name version --ws
{
"a": {
"name": "a",
"version": "1.0.0"
},
"b": {
"name": "b",
"version": "1.0.0"
}
}
```
### Configuration
<!-- AUTOGENERATED CONFIG DESCRIPTIONS START -->
<!-- automatically generated, do not edit manually -->
<!-- see lib/utils/config/definitions.js -->
#### `force`
* Default: false
* Type: Boolean
Removes various protections against unfortunate side effects, common
mistakes, unnecessary performance degradation, and malicious input.
* Allow clobbering non-npm files in global installs.
* Allow the `npm version` command to work on an unclean git repository.
* Allow deleting the cache folder with `npm cache clean`.
* Allow installing packages that have an `engines` declaration requiring a
different version of npm.
* Allow installing packages that have an `engines` declaration requiring a
different version of `node`, even if `--engine-strict` is enabled.
* Allow `npm audit fix` to install modules outside your stated dependency
range (including SemVer-major changes).
* Allow unpublishing all versions of a published package.
* Allow conflicting peerDependencies to be installed in the root project.
* Implicitly set `--yes` during `npm init`.
* Allow clobbering existing values in `npm pkg`
If you don't have a clear idea of what you want to do, it is strongly
recommended that you do not use this option!
<!-- automatically generated, do not edit manually -->
<!-- see lib/utils/config/definitions.js -->
#### `json`
* Default: false
* Type: Boolean
Whether or not to output JSON data, rather than the normal output.
* In `npm pkg set` it enables parsing set values with JSON.parse() before
saving them to your `package.json`.
Not supported by all npm commands.
<!-- automatically generated, do not edit manually -->
<!-- see lib/utils/config/definitions.js -->
#### `workspace`
* Default:
* Type: String (can be set multiple times)
Enable running a command in the context of the configured workspaces of the
current project while filtering by running only the workspaces defined by
this configuration option.
Valid values for the `workspace` config are either:
* Workspace names
* Path to a workspace directory
* Path to a parent workspace directory (will result in selecting all
workspaces within that folder)
When set for the `npm init` command, this may be set to the folder of a
workspace which does not yet exist, to create the folder and set it up as a
brand new workspace within the project.
This value is not exported to the environment for child processes.
<!-- automatically generated, do not edit manually -->
<!-- see lib/utils/config/definitions.js -->
#### `workspaces`
* Default: null
* Type: null or Boolean
Set to true to run the command in the context of **all** configured
workspaces.
Explicitly setting this to false will cause commands like `install` to
ignore workspaces altogether. When not set explicitly:
- Commands that operate on the `node_modules` tree (install, update, etc.)
will link workspaces into the `node_modules` folder. - Commands that do
other things (test, exec, publish, etc.) will operate on the root project,
_unless_ one or more workspaces are specified in the `workspace` config.
This value is not exported to the environment for child processes.
<!-- automatically generated, do not edit manually -->
<!-- see lib/utils/config/definitions.js -->
<!-- AUTOGENERATED CONFIG DESCRIPTIONS END -->
## See Also
* [npm install](/commands/npm-install)
* [npm init](/commands/npm-init)
* [npm config](/commands/npm-config)
* [npm set-script](/commands/npm-set-script)
* [workspaces](/using-npm/workspaces)
|