start VS InversifyJS

root@PMX://volume1/web/server# sudo npm i npm WARN deprecated [email protected]: Deprecated in favor of https://github.com/deepsweet/start npm WARN deprecated [email protected]: Please see https://github.com/lydell/urix#deprecated npm WARN deprecated [email protected]: https://github.com/lydell/resolve-url#deprecated npm WARN deprecated [email protected]: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies. npm WARN deprecated [email protected]: core-js@<3.4 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Please, upgrade your dependencies to the actual version of core-js. npm ERR! code 1 npm ERR! path /volume1/web/server/node_modules/canvas npm ERR! command failed npm ERR! command sh -c node-pre-gyp install --fallback-to-build npm ERR! Failed to execute '/volume1/@appstore/Node.js_v14/usr/local/bin/node /usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js configure --fallback-to-build --module=/volume1/web/server/node_modules/canvas/build/Release/canvas.node --module_name=canvas --module_path=/volume1/web/server/node_modules/canvas/build/Release --napi_version=7 --node_abi_napi=napi --napi_build_version=0 --node_napi_label=node-v83' (1) npm ERR! node-pre-gyp info it worked if it ends with ok npm ERR! node-pre-gyp info using [email protected] npm ERR! node-pre-gyp info using [email protected] | linux | x64 npm ERR! node-pre-gyp info check checked for "/volume1/web/server/node_modules/canvas/build/Release/canvas.node" (not found) npm ERR! node-pre-gyp http GET https://github.com/Automattic/node-canvas/releases/download/v2.8.0/canvas-v2.8.0-node-v83-linux-unknown-x64.tar.gz npm ERR! node-pre-gyp ERR! install response status 404 Not Found on https://github.com/Automattic/node-canvas/releases/download/v2.8.0/canvas-v2.8.0-node-v83-linux-unknown-x64.tar.gz npm ERR! node-pre-gyp WARN Pre-built binaries not installable for [email protected] and [email protected] (node-v83 ABI, unknown) (falling back to source compile with node-gyp) npm ERR! node-pre-gyp WARN Hit error response status 404 Not Found on https://github.com/Automattic/node-canvas/releases/download/v2.8.0/canvas-v2.8.0-node-v83-linux-unknown-x64.tar.gz npm ERR! gyp info it worked if it ends with ok npm ERR! gyp info using [email protected] npm ERR! gyp info using [email protected] | linux | x64 npm ERR! gyp info ok npm ERR! gyp info it worked if it ends with ok npm ERR! gyp info using [email protected] npm ERR! gyp info using [email protected] | linux | x64 npm ERR! gyp info find Python using Python version 3.8.8 found at "/bin/python3" npm ERR! gyp WARN EACCES current user ("pmxitadmin") does not have permission to access the dev dir "/root/.cache/node-gyp/14.16.0" npm ERR! gyp WARN EACCES attempting to reinstall using temporary dev dir "/tmp/.node-gyp" npm ERR! gyp info spawn /bin/python3 npm ERR! gyp info spawn args [ npm ERR! gyp info spawn args '/usr/local/lib/node_modules/npm/node_modules/node-gyp/gyp/gyp_main.py', npm ERR! gyp info spawn args 'binding.gyp', npm ERR! gyp info spawn args '-f', npm ERR! gyp info spawn args 'make', npm ERR! gyp info spawn args '-I', npm ERR! gyp info spawn args '/volume1/web/server/node_modules/canvas/build/config.gypi', npm ERR! gyp info spawn args '-I', npm ERR! gyp info spawn args '/usr/local/lib/node_modules/npm/node_modules/node-gyp/addon.gypi', npm ERR! gyp info spawn args '-I', npm ERR! gyp info spawn args '/tmp/.node-gyp/14.16.0/include/node/common.gypi', npm ERR! gyp info spawn args '-Dlibrary=shared_library', npm ERR! gyp info spawn args '-Dvisibility=default', npm ERR! gyp info spawn args '-Dnode_root_dir=/tmp/.node-gyp/14.16.0', npm ERR! gyp info spawn args '-Dnode_gyp_dir=/usr/local/lib/node_modules/npm/node_modules/node-gyp', npm ERR! gyp info spawn args '-Dnode_lib_file=/tmp/.node-gyp/14.16.0/<(target_arch)/node.lib', npm ERR! gyp info spawn args '-Dmodule_root_dir=/volume1/web/server/node_modules/canvas', npm ERR! gyp info spawn args '-Dnode_engine=v8', npm ERR! gyp info spawn args '--depth=.', npm ERR! gyp info spawn args '--no-parallel', npm ERR! gyp info spawn args '--generator-output', npm ERR! gyp info spawn args 'build', npm ERR! gyp info spawn args '-Goutput_dir=.' npm ERR! gyp info spawn args ] npm ERR! /bin/sh: pkg-config: command not found npm ERR! gyp: Call to 'pkg-config pixman-1 --libs' returned exit status 127 while in binding.gyp. while trying to load binding.gyp npm ERR! gyp ERR! configure error

Take a class for which we are tasked to write a unit test. This class may have a dozen methods and a dozen more attributes. In my environment we were already using inversify to dependency inject into this class, and using container snapshot and restore as setup and teardown operators, in our jest test file. But it began getting out of control even after refactoring into test cases and test runners.

Inversify (https://inversify.io/) for IoC.

Alguns frameworks trabalham desta forma por padrão, como é o caso do Angular, quando este não é o padrão do framework que utilizamos podemos usar alguma biblioteca, como a Inversify ou tsyringe da Microsoft.

Using decorators required setting an --experimentalDecorators experimental compiler flag. Several popular TypeScript libraries, such as type-graphql and inversify, rely on this implementation.

inversify

It blows 🤯 my mind to think that my #opensource project InversifyJS has reached over 100 MILLION DOWNLOADS on npm. InversifyJS is a lightweight (<50KB) but powerful Inversion Of Control (IoC) container for #JavaScript applications powered by #TypeScript. It is used to implement Dependency Injection (DI) in thousands of applications, including high-profile products like Microsoft Sway and over forty thousand open source repositories on #GitHub and over two thousand open source packages on #npm.

we use https://inversify.io/ in production, it works great.