What is the best way to send variables to a proxy server URL?

Is there a way to pass specific variables to my proxy in order to make API calls with customized parameters, similar to the scenario outlined below?

This is how my proxy configuration appears:

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

In my service, I utilize this proxy as follows:

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

While attempting to pass variables x, y, and date along with fixed settings to the URL, the console displays:

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

The API reports that the request was incorrectly formatted due to the absence of these additional variables. How can I correctly pass data to the proxy for the redirect to appear like this:

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

UPDATE: Angular JSON Configuration

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  // Remaining contents replaced for brevity
}

Answer №1

The console output displays the following:

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

It is correct that the log shows the GET request after the arrow (->).

/darksky/53.1219648,18.0002529,2019-12-04T12:00:00?exclude=hourly,daily,flags&units=auto

This request is proxied to the host

https://api.darksky.net/forecast/APIKEY/
(after ->).

Based on what is specified in proxy.conf.json, it is functioning as expected.

The issue lies with the request, where the final URL becomes:

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

This format is incorrect, as per Darksky API specifications, the "darksky" keyword should not be included in the request.

The correct request URL should be:

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

Answer №2

After @Plochie brought attention to the problem, I was able to discover a resolution:

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

Simply including "pathRewrite" in "proxy.config.json" - just as shown in the provided snippet accomplishes the task.

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