Getting Bad Request (Http 400) when using npm dist-tag with Nexus 3.19.1-01 - npm

Question

We are running Nexus OSS 3.19.1-01 (CentOS7 with OpenJdk 1.8.0_222-b10) with npm repository. Everything works fine except the npm dist-tag feature which should now work with version >3.19.
$ npm publish <pkg> --tag bla #--> works
$ npm install <pkg>#bla #--> works
$ npm dist-tag ls <pkg> #--> works
$ npm dist-tag rm --verbose #myscope/mypackage foo
npm info it worked if it ends with ok
npm verb cli [
npm verb cli '/usr/bin/node',
npm verb cli '/usr/local/bin/npm',
npm verb cli 'dist-tag',
npm verb cli 'rm',
npm verb cli '--verbose',
npm verb cli '#myscope/mypackage',
npm verb cli 'foo'
npm verb cli ]
npm info using npm#6.13.1
npm info using node#v12.13.0
npm verb npm-session 3b193197390df1cf
npm verb dist-tag del snapshot from #myscope/mypackage
npm http fetch GET 200 https://nexus.example.com/repository/npm-group/-/package/#myscope%2fmypackage/dist-tags 1396ms
npm http fetch DELETE 400 https://nexus.example.com/repository/npm-group/-/package/#myscope%2fmypackage/dist-tags/foo 9ms
npm verb stack Error: 400 Bad Request - DELETE https://nexus.example.com/repository/npm-group/-/package/#myscope%2fmypackage/dist-tags/foo
npm verb stack at /usr/local/lib/node_modules/npm/node_modules/npm-registry-fetch/check-response.js:104:15
npm verb stack at processTicksAndRejections (internal/process/task_queues.js:93:5)
npm verb statusCode 400
npm verb pkgid #myscope/mypackage#latest
npm verb cwd /home/myname/path-to-code/mypackage/client
npm verb Linux 5.3.11-300.fc31.x86_64
npm verb argv "/usr/bin/node" "/usr/local/bin/npm" "dist-tag" "rm" "--verbose" "#myscope/mypackage" "foo"
npm verb node v12.13.0
npm verb npm v6.13.1
npm ERR! code E400
npm ERR! 400 Bad Request - DELETE https://nexus.example.com/repository/npm-group/-/package/#myscope%2fmypackage/dist-tags/foo
npm verb exit [ 1, true ]
npm timing npm Completed in 1730ms
npm ERR! A complete log of this run can be found in:
npm ERR! /home/myname/.npm/_logs/2019-11-20T13_02_41_234Z-debug.log
$ npm dist-tag add #myscope/mypackage#0.1.0 bar
# did not work, same error as above
No additional log messages in nexus log.
Any idea?

Answer 1

I'm afraid it won't work for you, because you're running your commands against npm group repository. Both npm dist-tag add and npm dist-tag rm work only for hosted repositories as of NXRM 3.19.1. However, npm dist-tag ls is supported by all types of repositories (since 3.19.0).