Angular 如何将变量传递到代理服务器url？

我试图找到一种方法，将某些变量传递给我的代理，这样我就可以使用一些参数调用API，就像下面的示例一样

我的代理配置如下所示：

{
    "/darksky/*": {
    "target": "https://api.darksky.net/forecast/APIKEY/",
    "secure": false,
    "logLevel": "debug",
    "changeOrigin": true
  }
}

在服务中，我调用此代理，如下所示：

return this.http.get(`/darksky/${x},${y},${date}?exclude=hourly,daily,flags&units=auto`);

如您所见，我试图将某些变量传递给url-x、y和日期以及一些静态设置，但在控制台中显示：

[HPM] GET /darksky/53.1219648,18.0002529,2019-12-04T12:00:00?exclude=hourly,daily,flags&units=auto -> https://api.darksky.net/forecast/APIKEY/

api返回请求的格式错误，因为我缺少这些额外的变量。那么，如何将某些内容传递给代理，使实际重定向看起来像这样：

https://api.darksky.net/forecast/APIKz/53.1219648,18.0002529,2019-12-04T12:00:00?exclude=hourly,daily,flags&units=auto

编辑：angular.json

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "fe": {
      "projectType": "application",
      "schematics": {},
      "root": "",
      "sourceRoot": "src",
      "prefix": "app",
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "dist/fe",
            "index": "src/index.html",
            "main": "src/main.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "tsconfig.app.json",
            "aot": false,
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ],
            "styles": [
              "src/styles.css"
            ],
            "scripts": [
              "node_modules/alertifyjs/build/alertify.min.js"
            ]
          },
          "configurations": {
            "production": {
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.prod.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "budgets": [
                {
                  "type": "initial",
                  "maximumWarning": "2mb",
                  "maximumError": "5mb"
                },
                {
                  "type": "anyComponentStyle",
                  "maximumWarning": "6kb",
                  "maximumError": "10kb"
                }
              ]
            }
          }
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "fe:build",
            "proxyConfig": "src/app/proxyServer/proxy.config.json"
          },
          "configurations": {
            "production": {
              "browserTarget": "fe:build:production"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "fe:build"
          }
        },
        "test": {
          "builder": "@angular-devkit/build-angular:karma",
          "options": {
            "main": "src/test.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "tsconfig.spec.json",
            "karmaConfig": "karma.conf.js",
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ],
            "styles": [
              "src/styles.css"
            ],
            "scripts": []
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": [
              "tsconfig.app.json",
              "tsconfig.spec.json",
              "e2e/tsconfig.json"
            ],
            "exclude": [
              "**/node_modules/**"
            ]
          }
        },
        "e2e": {
          "builder": "@angular-devkit/build-angular:protractor",
          "options": {
            "protractorConfig": "e2e/protractor.conf.js",
            "devServerTarget": "fe:serve"
          },
          "configurations": {
            "production": {
              "devServerTarget": "fe:serve:production"
            }
          }
        }
      }
    }},
  "defaultProject": "fe"
}

您的控制台输出是

[HPM] GET /darksky/53.1219648,18.0002529,2019-12-04T12:00:00?exclude=hourly,daily,flags&units=auto -> https://api.darksky.net/forecast/APIKEY/

这是正确的，因为在箭头（->）之后，日志显示GET请求

/darksky/53.1219648,18.00025292019-12-04T12:00:00？排除=小时、每日、旗帜和单位=自动

是主机的代理吗

https://api.darksky.net/forecast/APIKEY/

（在->之后）

因为这是您在

proxy.conf.json

中提到的，所以它的工作方式与您所写的一样

这是一个请求问题，您的最终请求是

https://api.darksky.net/forecast/APIKEY/darksky/53.1219648,18.0002529,2019-12-04T12:00:00?exclude=hourly,daily,flags&units=auto

这是错误的，根据Darksky api，请求中不应该有Darksky关键字

你的请求应该是

https://api.darksky.net/forecast/APIKEY/53.1219648,18.0002529,2019-12-04T12:00:00?exclude=hourly,daily,flags&units=auto

---

@普洛奇指出了这个问题，我设法找到了解决办法：

{
    "/darksky/*": {
    "target": "https://api.darksky.net/forecast/APIKEY",
    "secure": false,
    "logLevel": "debug",
    "changeOrigin": true,
    "pathRewrite": {"^/darksky" : ""}
  }
}

---

只需将“pathRewrite”添加到“proxy.config.json”中即可，就像上面的代码片段一样。

如何启动应用程序？只是

ng serve

？是的，但是我已经将代理添加到angular.json中。请发布package.json开始脚本抱歉，我已经阅读了package.json的angular.json istead-我将检查您的answear。按照我的假设，在代理配置中尝试

/darksky

或

/darksky/**

，问题仍然存在。将“proxyConfig”：“src/app/proxyServer/proxy.config.json”放在angular.json中，并以ng serve开始，这是另一种与您提到的完全相同的方法。来自API的控制台nad响应中的输出与之前完全相同。它仍然无法读取变量。代理可以很好地工作，因为它重定向到目标-但是如何向目标添加额外的url？我认为在->之后应该是这样的：//api.darksky.net/forecast/APIKEY//53.1219648,18.00025292019-12-04T12:00:00？exclude=hourly，daily，flags&units=auto这意味着，当我通过代理调用api时，api返回的结果就好像请求是错误构建的一样，例如，我在url中丢失了一些内容，但我将完全相同的url放入浏览器，它返回正确的数据。代理是否会以某种方式更改任何内容，或者它实际上只调用“”-没有其他参数？我的答案有意义吗？是的，我理解这个问题-因为我想确切地知道代理后url的外观-我现在只是想弄清楚如何绕过它。