`signQuery` doesn't sign using the query parameters

[André Fontenele]

The signQuery option tells aws4 to sign the request using query parameters but ignores the relevant output.

Where

// src/interceptor.ts
      /* ... */
      signQuery: options?.signQuery,
      body: transformedData,
      headers: headersToSign,
    };

    const resolvedCredentials = await credentialsProvider.getCredentials();
    sign(signingOptions, resolvedCredentials);

    config.headers = signingOptions.headers;
    // Huh? What about `url`?

    return config;

To reproduce:

// repro.ts
import axios from "axios";
import { aws4Interceptor } from "aws4-axios";

(async () => {
  const agent = axios.create();
  agent.interceptors.request.use((request) => {
    console.log("Final URL: ", request.url); // Final URL:  https://localhost/?iamstill=thesame
    console.log("Headers: ", request.headers); // Headers:  { Host: 'localhost' }
    return request;
  });
  agent.interceptors.request.use(
    aws4Interceptor(
      {
        region: "area51",
        service: "beer",
        signQuery: true,
      },
      {
        accessKeyId: "aki",
        secretAccessKey: "sak",
      }
    )
  );

  try {
    return await agent.request({
      url: "https://localhost/?iamstill=thesame",
    });
  } catch (e) {}
})();

[James Bourne]

Hey @andrestone, thanks for the report! This should be fixed by #226