Node.js bindings for a Digital Asset Ledger Project - node.js

Question

I am working through Digital Asset Getting Started with Node.js bindings.
Running
npm install #da/daml-ledger
causes the following error message
npm ERR! code E401
npm ERR! 401 Unauthorized: #da/daml-ledger#latest
npm ERR! A complete log of this run can be found in:
npm ERR! /...../.npm/_logs/2019-02-22T17_48_44_560Z-debug.log
here are the contents of that log file:
0 info it worked if it ends with ok
1 verbose cli [ '/usr/local/lib/nodejs/node-v10.15.1-linux-x64/bin/node',
1 verbose cli '/usr/local/lib/nodejs/node-v10.15.1-linux-x64/bin/npm',
1 verbose cli 'install',
1 verbose cli '#da/daml-ledger' ]
2 info using npm#6.4.1
3 info using node#v10.15.1
4 verbose npm-session 99e5e60df68735cb
5 silly install loadCurrentTree
6 silly install readLocalPackageData
7 http fetch GET 401 https://api.bintray.com/npm/digitalassetsdk/npm/#da%2fdaml-ledger 411ms
8 silly fetchPackageMetaData error for #da/daml-ledger#latest 401 Unauthorized: #da/daml-ledger#latest
9 timing stage:rollbackFailedOptional Completed in 4ms
10 timing stage:runTopLevelLifecycles Completed in 515ms
11 verbose stack Error: 401 Unauthorized: #da/daml-ledger#latest
11 verbose stack at fetch.then.res (/usr/local/lib/nodejs/node-v10.15.1-linux-x64/lib/node_modules/npm/node_modules/pacote/lib/fetchers/registry/fetch.j
s:42:19)
11 verbose stack at tryCatcher (/usr/local/lib/nodejs/node-v10.15.1-linux-x64/lib/node_modules/npm/node_modules/bluebird/js/release/util.js:16:23)
11 verbose stack at Promise._settlePromiseFromHandler (/usr/local/lib/nodejs/node-v10.15.1-linux-x64/lib/node_modules/npm/node_modules/bluebird/js/relea
se/promise.js:512:31)
11 verbose stack at Promise._settlePromise (/usr/local/lib/nodejs/node-v10.15.1-linux-x64/lib/node_modules/npm/node_modules/bluebird/js/release/promise.
js:569:18)
11 verbose stack at Promise._settlePromise0 (/usr/local/lib/nodejs/node-v10.15.1-linux-x64/lib/node_modules/npm/node_modules/bluebird/js/release/promise
.js:614:10)
11 verbose stack at Promise._settlePromises (/usr/local/lib/nodejs/node-v10.15.1-linux-x64/lib/node_modules/npm/node_modules/bluebird/js/release/promise
.js:693:18)
11 verbose stack at Async._drainQueue (/usr/local/lib/nodejs/node-v10.15.1-linux-x64/lib/node_modules/npm/node_modules/bluebird/js/release/async.js:133:
16)
11 verbose stack at Async._drainQueues (/usr/local/lib/nodejs/node-v10.15.1-linux-x64/lib/node_modules/npm/node_modules/bluebird/js/release/async.js:143
:10)
11 verbose stack at Immediate.Async.drainQueues [as _onImmediate] (/usr/local/lib/nodejs/node-v10.15.1-linux-x64/lib/node_modules/npm/node_modules/blueb
ird/js/release/async.js:17:14)
11 verbose stack at runCallback (timers.js:705:18)
11 verbose stack at tryOnImmediate (timers.js:676:5)
11 verbose stack at processImmediate (timers.js:658:5)
12 verbose cwd /home/vantage/DAnodeBindings
13 verbose Linux 4.15.0-45-generic
14 verbose argv "/usr/local/lib/nodejs/node-v10.15.1-linux-x64/bin/node" "/usr/local/lib/nodejs/node-v10.15.1-linux-x64/bin/npm" "install" "#da/daml-ledger"
15 verbose node v10.15.1
16 verbose npm v6.4.1
17 error code E401
18 error 401 Unauthorized: #da/daml-ledger#latest
19 verbose exit [ 1, true ]
I followed the instructions in step 1 and step 2. my .npmrc is updated with the response I received from entering
curl -umehul#digitalassetsdk:<API_KEY> https://api.bintray.com/npm/digitalassetsdk/npm/auth/scope/da
and I entered the command
npm config set #da:registry https://api.bintray.com/npm/digitalassetsdk/npm
What is causing the error?

Answer 1

From the comments it appears you missed a step of the setup, namely as the instructions tell you to paste the response of curl to ~/.npmrc.
The response should be pasted in the ~/.npmrc (in Windows %USERPROFILE%/.npmrc) file.
As an alternative, on Linux and MacOS you can just pipe the output of curl to ~/.npmrc as follows:
curl -u<USERNAME>:<API_KEY> https://api.bintray.com/npm/digitalassetsdk/npm/auth/scope/da >> ~/.npmrc
Using the >> operator will preserve the current content of ~/.npmrc and append the output of curl to the file (or create it if it's not there yet). If you want to overwrite the current ~/.npmrc file, just use the > operator instead.

Answer 2

The Bintary 'Set Me Up' Instructions (referenced in step 1.3 of https://docs.daml.com/app-dev/bindings-js/getting-started.html) say to run a curl command and the to run
npm config set #<SCOPE>:registry https://api.bintray.com/npm/digitalassetsdk/npm
When I skip the npm config step I have no problems.