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JHipster/Microservices frontend development hot reload


JHipster - Doubts in the development using Microservices ArchitectureCross-Origin in JHipster's microservicesJhipster, Unable to connect containerized mongodbGetting error details from JHipster UAA microservice through gatewayStrange error with a JHipster app in a microservices architecture and Docker upjhipster microservices running mixed in docker and locally. Gateway cannot access UAAjhipster seperate services during developmentJHipster problem with frontend/gateway communicationHow to make the Jhipster gateway REST requests the microservice?













0















I have created a JHipster microservices application and want to do some frontend development on it. Launching the whole microservices stack in the ./docker-compose/ directory with docker-compose up -d works as expected. Registry shows all microservices, the gateway and an UAA instance with status 'up'. No exceptions thrown. Login to http://localhost:8080 works as expected.
Launching yarn start in the gateway project directory launches the development server via webpack and browsersync. Hot reload works as expected when pointing the browser at http://localhost:9000.



Now to my problem/question: logging into http://localhost:9000 as user/user doesn't work, as the account cannot be retrieved. The thrown exception is irrelevant because it just states that the account is null:



webpack-internal:///…fesm5/core.js:16064 ERROR Error: Uncaught (in promise): 
TypeError: Cannot read property 'langKey' of null
TypeError: Cannot read property 'langKey' of null
at LoginService.setPreferredLanguage (webpack-internal:///…
login.service.ts:34)
....


But when I point the browser back to http://localhost:8080, I'm logged in as 'user'. Which means that the login on the backend worked.



Being new to docker and microservices, I'm suspecting that I'm conceptually missing something (networks/ports/etc..). Any ideas that could point to finding a solution? Or what is the suggested setup/practices for developing the frontend in a JHipster/microservices configuration.










share|improve this question


























    0















    I have created a JHipster microservices application and want to do some frontend development on it. Launching the whole microservices stack in the ./docker-compose/ directory with docker-compose up -d works as expected. Registry shows all microservices, the gateway and an UAA instance with status 'up'. No exceptions thrown. Login to http://localhost:8080 works as expected.
    Launching yarn start in the gateway project directory launches the development server via webpack and browsersync. Hot reload works as expected when pointing the browser at http://localhost:9000.



    Now to my problem/question: logging into http://localhost:9000 as user/user doesn't work, as the account cannot be retrieved. The thrown exception is irrelevant because it just states that the account is null:



    webpack-internal:///…fesm5/core.js:16064 ERROR Error: Uncaught (in promise): 
    TypeError: Cannot read property 'langKey' of null
    TypeError: Cannot read property 'langKey' of null
    at LoginService.setPreferredLanguage (webpack-internal:///…
    login.service.ts:34)
    ....


    But when I point the browser back to http://localhost:8080, I'm logged in as 'user'. Which means that the login on the backend worked.



    Being new to docker and microservices, I'm suspecting that I'm conceptually missing something (networks/ports/etc..). Any ideas that could point to finding a solution? Or what is the suggested setup/practices for developing the frontend in a JHipster/microservices configuration.










    share|improve this question
























      0












      0








      0








      I have created a JHipster microservices application and want to do some frontend development on it. Launching the whole microservices stack in the ./docker-compose/ directory with docker-compose up -d works as expected. Registry shows all microservices, the gateway and an UAA instance with status 'up'. No exceptions thrown. Login to http://localhost:8080 works as expected.
      Launching yarn start in the gateway project directory launches the development server via webpack and browsersync. Hot reload works as expected when pointing the browser at http://localhost:9000.



      Now to my problem/question: logging into http://localhost:9000 as user/user doesn't work, as the account cannot be retrieved. The thrown exception is irrelevant because it just states that the account is null:



      webpack-internal:///…fesm5/core.js:16064 ERROR Error: Uncaught (in promise): 
      TypeError: Cannot read property 'langKey' of null
      TypeError: Cannot read property 'langKey' of null
      at LoginService.setPreferredLanguage (webpack-internal:///…
      login.service.ts:34)
      ....


      But when I point the browser back to http://localhost:8080, I'm logged in as 'user'. Which means that the login on the backend worked.



      Being new to docker and microservices, I'm suspecting that I'm conceptually missing something (networks/ports/etc..). Any ideas that could point to finding a solution? Or what is the suggested setup/practices for developing the frontend in a JHipster/microservices configuration.










      share|improve this question














      I have created a JHipster microservices application and want to do some frontend development on it. Launching the whole microservices stack in the ./docker-compose/ directory with docker-compose up -d works as expected. Registry shows all microservices, the gateway and an UAA instance with status 'up'. No exceptions thrown. Login to http://localhost:8080 works as expected.
      Launching yarn start in the gateway project directory launches the development server via webpack and browsersync. Hot reload works as expected when pointing the browser at http://localhost:9000.



      Now to my problem/question: logging into http://localhost:9000 as user/user doesn't work, as the account cannot be retrieved. The thrown exception is irrelevant because it just states that the account is null:



      webpack-internal:///…fesm5/core.js:16064 ERROR Error: Uncaught (in promise): 
      TypeError: Cannot read property 'langKey' of null
      TypeError: Cannot read property 'langKey' of null
      at LoginService.setPreferredLanguage (webpack-internal:///…
      login.service.ts:34)
      ....


      But when I point the browser back to http://localhost:8080, I'm logged in as 'user'. Which means that the login on the backend worked.



      Being new to docker and microservices, I'm suspecting that I'm conceptually missing something (networks/ports/etc..). Any ideas that could point to finding a solution? Or what is the suggested setup/practices for developing the frontend in a JHipster/microservices configuration.







      docker-compose microservices jhipster browser-sync






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Mar 8 at 7:05









      Hubert SchumacherHubert Schumacher

      332314




      332314






















          1 Answer
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          active

          oldest

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          0














          There has been an error in the webpack.dev.js configuration file and because UAA was added later to the project, the UAA module was missing in the contexts to be proxies:



          devServer: {
          contentBase: './build/www',
          proxy: [
          context: [
          '/microservice1',
          '/microservice2',
          '/microserviceuaa', /* !!! was missing !!! */
          /* jhipster-needle-add-entity-to-webpack - JHipster will add entity api paths here */
          '/api',
          '/management',
          '/swagger-resources',
          '/v2/api-docs',
          '/h2-console',
          '/auth'
          ],
          target: `http$options.tls ? 's' : ''://127.0.0.1:8080`,
          secure: false,
          changeOrigin: options.tls,
          headers: host: 'localhost:9000'
          ],





          share|improve this answer






















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            1 Answer
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            active

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            active

            oldest

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            0














            There has been an error in the webpack.dev.js configuration file and because UAA was added later to the project, the UAA module was missing in the contexts to be proxies:



            devServer: {
            contentBase: './build/www',
            proxy: [
            context: [
            '/microservice1',
            '/microservice2',
            '/microserviceuaa', /* !!! was missing !!! */
            /* jhipster-needle-add-entity-to-webpack - JHipster will add entity api paths here */
            '/api',
            '/management',
            '/swagger-resources',
            '/v2/api-docs',
            '/h2-console',
            '/auth'
            ],
            target: `http$options.tls ? 's' : ''://127.0.0.1:8080`,
            secure: false,
            changeOrigin: options.tls,
            headers: host: 'localhost:9000'
            ],





            share|improve this answer



























              0














              There has been an error in the webpack.dev.js configuration file and because UAA was added later to the project, the UAA module was missing in the contexts to be proxies:



              devServer: {
              contentBase: './build/www',
              proxy: [
              context: [
              '/microservice1',
              '/microservice2',
              '/microserviceuaa', /* !!! was missing !!! */
              /* jhipster-needle-add-entity-to-webpack - JHipster will add entity api paths here */
              '/api',
              '/management',
              '/swagger-resources',
              '/v2/api-docs',
              '/h2-console',
              '/auth'
              ],
              target: `http$options.tls ? 's' : ''://127.0.0.1:8080`,
              secure: false,
              changeOrigin: options.tls,
              headers: host: 'localhost:9000'
              ],





              share|improve this answer

























                0












                0








                0







                There has been an error in the webpack.dev.js configuration file and because UAA was added later to the project, the UAA module was missing in the contexts to be proxies:



                devServer: {
                contentBase: './build/www',
                proxy: [
                context: [
                '/microservice1',
                '/microservice2',
                '/microserviceuaa', /* !!! was missing !!! */
                /* jhipster-needle-add-entity-to-webpack - JHipster will add entity api paths here */
                '/api',
                '/management',
                '/swagger-resources',
                '/v2/api-docs',
                '/h2-console',
                '/auth'
                ],
                target: `http$options.tls ? 's' : ''://127.0.0.1:8080`,
                secure: false,
                changeOrigin: options.tls,
                headers: host: 'localhost:9000'
                ],





                share|improve this answer













                There has been an error in the webpack.dev.js configuration file and because UAA was added later to the project, the UAA module was missing in the contexts to be proxies:



                devServer: {
                contentBase: './build/www',
                proxy: [
                context: [
                '/microservice1',
                '/microservice2',
                '/microserviceuaa', /* !!! was missing !!! */
                /* jhipster-needle-add-entity-to-webpack - JHipster will add entity api paths here */
                '/api',
                '/management',
                '/swagger-resources',
                '/v2/api-docs',
                '/h2-console',
                '/auth'
                ],
                target: `http$options.tls ? 's' : ''://127.0.0.1:8080`,
                secure: false,
                changeOrigin: options.tls,
                headers: host: 'localhost:9000'
                ],






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Mar 9 at 3:58









                Hubert SchumacherHubert Schumacher

                332314




                332314





























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