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Gathering detailed insights and metrics for json-merge-patch

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Gathering detailed insights and metrics for json-merge-patch

json-merge-patch - 1.0.2 | npmpackage.info

json-merge-patch

An implementation of the JSON Merge Patch (RFC 7396)

1.0.2

MIT

JavaScript

1.7

Installations

npm install json-merge-patch

Developer Guide

BETA

Typescript

No

Module System

CommonJS

Node Version

14.15.3

NPM Version

6.14.9 Pull Requests

Open

10

Total

24

Closed

4

Merged

10

Issues

Open

3

Total

5

Closed

2

Releases

Unable to fetch releases

Languages

JavaScript

JavaScript (100%)

Developer

pierreinglebert

Download Statistics

Total Downloads

Last Day

Last Week

Last Month

Last Year

GitHub Statistics

MIT License

83 Stars

34 Commits

13 Forks

3 Watchers

10 Branches

3 Contributors

Updated on May 26, 2025

Maintainers

View All 3 Contributors

Package Meta Information

Latest Version

1.0.2

Package Id

json-merge-patch@1.0.2

Size

4.15 kB

NPM Version

6.14.9

Node Version

14.15.3

Published on

Jul 21, 2021

Total Downloads

Cumulative downloads

Total Downloads

NaN

Last Day

NaN

Compared to previous day

Last Week

NaN

Compared to previous week

Last Month

NaN

Compared to previous month

Last Year

NaN

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

fast-deep-equal

Dev Dependencies

chai coveralls eslint istanbul mocha

JSON Merge Patch

An implementation of the JSON Merge Patch RFC 7396

JSON Merge Patch (RFC 7396) is a standard format that allows you to update a JSON document by sending the changes rather than the whole document. JSON Merge Patch plays well with the HTTP PATCH verb (method) and REST style programming.

Install

Install the current version (and save it as a dependency):

npm

1$ npm install json-merge-patch --save

Usage

Applying patches:

1jsonmergepatch.apply(obj: Object, patch: Object) : Object

Applies patch onto source obj.

Example:

1var source = {
2  "title": "Goodbye!",
3  "author" : {
4		"givenName" : "John",
5		"familyName" : "Doe"
6	}
7};
8
9var patch = {
10	"title": 'Hello!',
11	"author": {
12		"familyName": null
13	}
14}
15
16var target = jsonmergepatch.apply(source, patch);
17
18// target = {
19// 	"title": "Hello!",
20//   "author" : {
21// 		"givenName" : "John",
22// 	}
23// }

Generating patches:

1jsonmergepatch.generate(source: Object, target: Object) : Object

Compares source and target object and generates a patch of the changes necessary to convert source into target.

Example:

1var source = {
2  "title": "Goodbye!",
3  "author" : "John Doe"
4};
5
6var target = {
7	"title": "Hello!",
8};
9
10var patch = jsonmergepatch.generate(source, target);
11
12// patch = {
13// 	"title": 'Hello!',
14// 	"author": null
15// }

Merging patches

This function is outside the scope of the RFC, its purpose is to combine/squash successive patches of the same entity into one patch. Use it at your own risks.

Usage with Javascript objects

This library is primarily designed to work with JSON. Nonetheless, it is possible to use Javascript objects if the method toJSON() is implemented, the library will then serialize your object using it.

1var patch = jsonmergepatch.generate(
2  {
3    "title": "Goodbye!"
4  },
5  {
6    toJSON: () {
7      return {
8        "title": "I am serialized"
9      }
10    },
11  }
12);
13// patch = {
14// 	"title": "I am serialized",
15// }

1var patch = jsonmergepatch.generate(
2  {},
3  {
4    date: new Date("2020-05-09T00:00:00.000")
5  }
6);
7// patch = {
8// 	date: "2020-05-09T00:00:00.000"
9// }

Running tests

1npm test

License

MIT

No vulnerabilities found.

10

Binary-Artifacts

Determines if the project has generated executable (binary) artifacts in the source repository.

10

License

Determines if the project has defined a license.

0

Code-Review

Determines if the project requires human code review before pull requests (aka merge requests) are merged.

0

CII-Best-Practices

Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.

0

Maintained

Determines if the project is "actively maintained".

0

Security-Policy

Determines if the project has published a security policy.

0

Fuzzing

Determines if the project uses fuzzing.

0

Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

0

SAST

Determines if the project uses static code analysis.

0

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

Score

1.7

/10

Last Scanned on 2025-07-07

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