FYI : For anyone who have a problem with bcrypt installation module

[ariebrainware]

First of all you need to install python dependencies

sudo apt-get install -y build-essential python

If you use yarn , here's the syntax :

1. yarn
2. yarn add node-gyp bcrypt

If you use npm, here's the syntax:

1. npm install
2. npm install node-gyp bcryptjs

based on my experience, i'm using npm install bcrypt for installation, and got and error like this

rob0ne@l1nux:~/Desktop/GlintsClass#1/ariebrainware/connecc-api$ npm install -g bcrypt

> [email protected] install /home/rob0ne/.nvm/versions/node/v10.8.0/lib/node_modules/bcrypt
> node-pre-gyp install --fallback-to-build

node-pre-gyp WARN Tried to download(404): https://github.com/kelektiv/node.bcrypt.js/releases/download/v3.0.0/bcrypt_lib-v3.0.0-node-v64-linux-x64-glibc.tar.gz 
node-pre-gyp WARN Pre-built binaries not found for [email protected] and [email protected] (node-v64 ABI, glibc) (falling back to source compile with node-gyp) 
make: Entering directory '/home/rob0ne/.nvm/versions/node/v10.8.0/lib/node_modules/bcrypt/build'
  CXX(target) Release/obj.target/bcrypt_lib/src/blowfish.o
  CXX(target) Release/obj.target/bcrypt_lib/src/bcrypt.o
../src/bcrypt.cc: In function ‘void encode_salt(char*, u_int8_t*, char, u_int16_t, u_int8_t)’:
../src/bcrypt.cc:114:1: warning: ‘__builtin___snprintf_chk’ output may be truncated before the last format character [-Wformat-truncation=]
 encode_salt(char *salt, u_int8_t *csalt, char minor, u_int16_t clen, u_int8_t logr)
 ^~~~~~~~~~~
In file included from /usr/include/stdio.h:862:0,
                 from ../src/bcrypt.cc:34:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:65:44: note: ‘__builtin___snprintf_chk’ output between 4 and 5 bytes into a destination of size 4
        __bos (__s), __fmt, __va_arg_pack ());
                                            ^
../src/bcrypt.cc: In function ‘void bcrypt(const char*, const char*, char*)’:
../src/bcrypt.cc:147:1: warning: ‘__builtin___snprintf_chk’ output may be truncated before the last format character [-Wformat-truncation=]
 bcrypt(const char *key, const char *salt, char *encrypted)
 ^~~~~~
In file included from /usr/include/stdio.h:862:0,
                 from ../src/bcrypt.cc:34:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:65:44: note: ‘__builtin___snprintf_chk’ output between 4 and 5 bytes into a destination of size 4
        __bos (__s), __fmt, __va_arg_pack ());
                                            ^
  CXX(target) Release/obj.target/bcrypt_lib/src/bcrypt_node.o
../src/bcrypt_node.cc: In function ‘char {anonymous}::ToCharVersion(v8::Local<v8::String>)’:
../src/bcrypt_node.cc:66:30: warning: ‘v8::String::Utf8Value::Utf8Value(v8::Local<v8::Value>)’ is deprecated: Use Isolate version [-Wdeprecated-declarations]
   String::Utf8Value value(str);
                              ^
In file included from /home/rob0ne/.node-gyp/10.8.0/include/node/v8.h:26:0,
                 from /home/rob0ne/.node-gyp/10.8.0/include/node/node.h:63,
                 from ../node_modules/nan/nan.h:51,
                 from ../src/bcrypt_node.cc:1:
/home/rob0ne/.node-gyp/10.8.0/include/node/v8.h:2852:28: note: declared here
                   explicit Utf8Value(Local<v8::Value> obj));
                            ^
/home/rob0ne/.node-gyp/10.8.0/include/node/v8config.h:324:3: note: in definition of macro ‘V8_DEPRECATED’
   declarator __attribute__((deprecated(message)))
   ^~~~~~~~~~
  SOLINK_MODULE(target) Release/obj.target/bcrypt_lib.node
  COPY Release/bcrypt_lib.node
  COPY /home/rob0ne/.nvm/versions/node/v10.8.0/lib/node_modules/bcrypt/lib/binding/bcrypt_lib.node
  TOUCH Release/obj.target/action_after_build.stamp
make: Leaving directory '/home/rob0ne/.nvm/versions/node/v10.8.0/lib/node_modules/bcrypt/build'
+ [email protected]
added 71 packages from 49 contributors in 19.02s

in package.json dependencies, bcrypt not listed. But still can import that module. Thats the weird thing.

So i try to install bcryptjs . And running smoothly

Ref:
https://github.com/kelektiv/node.bcrypt.js/wiki/Installation-Instructions
https://www.npmjs.com/package/bcrypt