What is dependentsCount in the response of https://api.npms.io/v2/package/<packageName>?

[sharikovvladislav]

Hi

There is dependentsCount in the response of, for example, https://api.npms.io/v2/package/react.

Here is full response:

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name":"jaredly","commitsCount":9},{"username":"joecritch","commitsCount":9},{"username":"raunofreiberg","commitsCount":9},{"username":"rickbeerendonk","commitsCount":9},{"username":"yiminghe","commitsCount":9},{"username":"Andarist","commitsCount":8},{"username":"SanderSpies","commitsCount":8},{"username":"bhamodi","commitsCount":8},{"username":"camsong","commitsCount":8},{"username":"dittos","commitsCount":8},{"username":"elas7","commitsCount":8},{"username":"hzoo","commitsCount":8},{"username":"jgebhardt","commitsCount":8},{"username":"kassens","commitsCount":8},{"username":"zertosh","commitsCount":8},{"username":"RaitoBezarius","commitsCount":7},{"username":"alexeyraspopov","commitsCount":7},{"username":"andrewdavey","commitsCount":7},{"username":"hramos","commitsCount":7},{"username":"hristo-kanchev","commitsCount":7},{"username":"Jessidhia","commitsCount":6},{"username":"Pouja","commitsCount":6},{"username":"aaronabramov","commitsCount":6},{"username":"awwright","commitsCount":6},{"username":"brigand","commitsCount":6},{"username":"bripkens","commitsCount":6},{"username":"bspaulding","commitsCount":6},{"username":"ianobermiller","commitsCount":6},{"username":"jddxf","commitsCount":6},{"username":"jontewks","commitsCount":6},{"username":"lrowe","commitsCount":6},{"username":"lyip1992","commitsCount":6},{"username":"makky3939","commitsCount":6},{"username":"matthewwithanm","commitsCount":6},{"username":"mmarkelov","commitsCount":6},{"username":"mxstbr","commitsCount":6},{"username":"mzabriskie","commitsCount":6},{"username":"piranha","commitsCount":6},{"username":"steveluscher","commitsCount":6},{"username":"rickhanlonii","commitsCount":5}],"commits":[{"from":"2019-10-13T00:00:00.000Z","to":"2019-10-20T00:00:00.000Z","count":29},{"from":"2019-09-20T00:00:00.000Z","to":"2019-10-20T00:00:00.000Z","count":112},{"from":"2019-07-22T00:00:00.000Z","to":"2019-10-20T00:00:00.000Z","count":438},{"from":"2019-04-23T00:00:00.000Z","to":"2019-10-20T00:00:00.000Z","count":981},{"from":"2018-10-20T00:00:00.000Z","to":"2019-10-20T00:00:00.000Z","count":1953}],"statuses":[{"context":"ci/circleci: test_fuzz","state":"success"},{"context":"ci/circleci: setup","state":"success"}]},"source":{"files":{"readmeSize":0,"testsSize":393813,"hasChangelog":true},"linters":["editorconfig","eslint","prettier"],"coverage":0.86}},"evaluation":{"quality":{"carefulness":0.62,"tests":0.679,"health":1,"branding":0.4},"popularity":{"communityInterest":171615,"downloadsCount":23998100,"downloadsAcceleration":45742.996670471824,"dependentsCount":33312},"maintenance":{"releasesFrequency":1,"commitsFrequency":1,"openIssues":1,"issuesDistribution":0.45397509516447815}},"score":{"final":0.9386743376369844,"detail":{"quality":0.8990845377624773,"popularity":0.9358278030023924,"maintenance":0.9754549864497253}}}

But, at npmjs.com website react has ~46k dependents at the moment. Here is the page: https://www.npmjs.com/package/react

github.com has 2.6m "used by" count.

So what is it "dependentsCount" in the response of https://www.npmjs.com/package/react?

[chris48s]

github.com has 2.6m "used by" count.

To clarify:
Github says 2.6m dependent repositories : https://github.com/facebook/react/network/dependents?dependent_type=REPOSITORY
Github's comparable(-ish) number would be 102,805 dependent packages : https://github.com/facebook/react/network/dependents?dependent_type=PACKAGE but I'd guess that probably includes some stuff like non-javascript packages that depend on react or javascript packages which are only published on GitHub's internal package registry. As such, its probably not a massively useful comparison point in this context for the number reported by either npms.io or npmjs.com which I'd expect to only look at the NPM ecosystem.

I'd still be interested in the difference between the npms.io or npmjs.com stats. I wonder if npmjs includes private packages in the count? 🤔

[sharikovvladislav]

I'd still be interested in the difference between the npms.io or npmjs.com stats. I wonder if npmjs includes private packages in the count? 🤔

Yes, that was my main question.

Thank you for clarifying github dependents.

[satazor]

The dependentsCount is the number of npm packages that are depending on react in this case. We are replicating from the public npm registry, which doesn't include private packages, so the difference in value compared to npmjs might be related to this.

Meanwhile the value of the dependantsCount on https://api.npms.io/v2/package/react is now ~54k.