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Overridable config on client side in custom npm package

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0

I'm trying to author an NPM package where several functions use the application configuration, like:

export const getCountries = () => 
 logger.log("getCountries requested", config.LOG_TARGET);
 return axios.get(`$config.API_BASE_URL/countries`);

I want these configuration values to be definable in the project using my npm package (not in the NPM package directly).

I guess this is a fairly common use-case, but I have yet to find a good article on what is the best or most common way to do this.

I guess something like this could work:

// config.js
const defaultConfig = 
 KEY1: "something",
 KEY2: "something else"


let config = defaultConfig;

export const getConfig = () => config;
export const setConfig = (newConfig) => 
 config = ...defaultConfig, ...newConfig ;
;

Then I would be able to use it in the end-user project like:

import setConfig from 'mypackage/config';
setConfig( KEY1: "specific value" );

And use it in the NPM package like:

import getConfig from './config';
const config = getConfig();

Is there any potential gotchas doing this? Am I trying to reinvent the wheel? Is there something standard I could use?

I would also like to be able to use this in a Webpack environment, but I guess webpack.DefinePlugin will be enough for differentiating between dev and prod builds.

npm webpack config

share|improve this question

asked Mar 25 at 14:49

SoonDeadSoonDead

4,46655 gold badges4040 silver badges7575 bronze badges

add a comment | 

0

I'm trying to author an NPM package where several functions use the application configuration, like:

export const getCountries = () => 
 logger.log("getCountries requested", config.LOG_TARGET);
 return axios.get(`$config.API_BASE_URL/countries`);

I want these configuration values to be definable in the project using my npm package (not in the NPM package directly).

I guess this is a fairly common use-case, but I have yet to find a good article on what is the best or most common way to do this.

I guess something like this could work:

// config.js
const defaultConfig = 
 KEY1: "something",
 KEY2: "something else"


let config = defaultConfig;

export const getConfig = () => config;
export const setConfig = (newConfig) => 
 config = ...defaultConfig, ...newConfig ;
;

Then I would be able to use it in the end-user project like:

import setConfig from 'mypackage/config';
setConfig( KEY1: "specific value" );

And use it in the NPM package like:

import getConfig from './config';
const config = getConfig();

Is there any potential gotchas doing this? Am I trying to reinvent the wheel? Is there something standard I could use?

I would also like to be able to use this in a Webpack environment, but I guess webpack.DefinePlugin will be enough for differentiating between dev and prod builds.

npm webpack config

share|improve this question

asked Mar 25 at 14:49

SoonDeadSoonDead

4,46655 gold badges4040 silver badges7575 bronze badges

add a comment | 

I'm trying to author an NPM package where several functions use the application configuration, like:

export const getCountries = () => 
 logger.log("getCountries requested", config.LOG_TARGET);
 return axios.get(`$config.API_BASE_URL/countries`);

I want these configuration values to be definable in the project using my npm package (not in the NPM package directly).

I guess this is a fairly common use-case, but I have yet to find a good article on what is the best or most common way to do this.

I guess something like this could work:

// config.js
const defaultConfig = 
 KEY1: "something",
 KEY2: "something else"


let config = defaultConfig;

export const getConfig = () => config;
export const setConfig = (newConfig) => 
 config = ...defaultConfig, ...newConfig ;
;

Then I would be able to use it in the end-user project like:

import setConfig from 'mypackage/config';
setConfig( KEY1: "specific value" );

And use it in the NPM package like:

import getConfig from './config';
const config = getConfig();

Is there any potential gotchas doing this? Am I trying to reinvent the wheel? Is there something standard I could use?

I would also like to be able to use this in a Webpack environment, but I guess webpack.DefinePlugin will be enough for differentiating between dev and prod builds.

npm webpack config

share|improve this question

asked Mar 25 at 14:49

SoonDeadSoonDead

4,46655 gold badges4040 silver badges7575 bronze badges

export const getCountries = () => 
 logger.log("getCountries requested", config.LOG_TARGET);
 return axios.get(`$config.API_BASE_URL/countries`);

// config.js
const defaultConfig = 
 KEY1: "something",
 KEY2: "something else"


let config = defaultConfig;

export const getConfig = () => config;
export const setConfig = (newConfig) => 
 config = ...defaultConfig, ...newConfig ;
;

import setConfig from 'mypackage/config';
setConfig( KEY1: "specific value" );

import getConfig from './config';
const config = getConfig();

share|improve this question

asked Mar 25 at 14:49

SoonDeadSoonDead

4,46655 gold badges4040 silver badges7575 bronze badges

share|improve this question

asked Mar 25 at 14:49

SoonDeadSoonDead

4,46655 gold badges4040 silver badges7575 bronze badges

asked Mar 25 at 14:49

SoonDeadSoonDead

4,46655 gold badges4040 silver badges7575 bronze badges

asked Mar 25 at 14:49

SoonDeadSoonDead

4,46655 gold badges4040 silver badges7575 bronze badges