[ISSUE] Error while npm install on Mac

[afraz-khan]

Hi ,
I am unable to install bitpay-rest on my mac. "npm install bitpay-rest" is throwing an error when building secp256k1.
Have a look on logs

Afraz-imac:api ahmad.afraz$ cd /Users/ahmad.afraz/Desktop/btpay_poc
Afraz-imac:btpay_poc ahmad.afraz$ npm install bitpay-rest
npm WARN deprecated request@2.87.0: request has been deprecated, see request/request#3142

bignum@0.13.1 install /Users/ahmad.afraz/Desktop/btpay_poc/node_modules/bignum
node-gyp rebuild

CXX(target) Release/obj.target/bignum/bignum.o
SOLINK_MODULE(target) Release/bignum.node

secp256k1@1.1.5 install /Users/ahmad.afraz/Desktop/btpay_poc/node_modules/secp256k1
node-gyp rebuild

CXX(target) Release/obj.target/secp256k1/functions.o
In file included from ../functions.cc:5:
.././async.h:45:15: warning: 'Call' is deprecated [-Wdeprecated-declarations]
callback->Call(3, argv);
^
Please if someone encountered this issue and solved then tell me the solution. Thanks.

[zalimander]

The problem comes from bitauth@^0.3.2 using secp256k1@=1.1.5, which doesn't build on Node v12. You can either downgrade to v11, or do some monkey patching with Yarn 2.0 and a resolution for bitpay-rest/bitauth to the master branch of BitAuth. I'd like to see this fixed though, as Node 12 is current LTS. Here's my patched fork, but it won't be updated if there are any new changes here: zalimander/node-bitpay-client#81c704e