将curl转换为Java HttpPost

Question

I'm having some trouble converting a curl command to a java httpPost. I'm trying to contact the Census Bureau Address Batch endpoint. I can contact it but I get a response stating something is incorrect.

The curl command is on the last page of this https://geocoding.geo.census.gov/geocoder/Geocoding_Services_API.pdf

The required parameters state it needs benchmark, vintage and addressFile so I'm trying to use each. The addressFile itself is a csv that I got here https://geocoding.geo.census.gov/geocoder/locations/addressbatch?form

DefaultHttpClient httpClient = new DefaultHttpClient();
HttpResponse response;

try {
    String url = "https://geocoding.geo.census.gov/geocoder/geographies/addressbatch"
    HttpPost httpPost = new HttpPost(url);

    MultipartEntity postEntity = new MultipartEntity();
    postEntity.addPart("addressFile", new FileBody(new File("addresses.csv")));
    postEntity.addPart("benchmark", new StringBody("Public_AR_Current"));
    postEntity.addPart("vintage", new StringBody("Public_AR_Current"));

    httpPost.setEntity(postEntity);

    response = httpClient.execute(httpPost);
    HttpEntity responseEntity = response.getEntity();

    StringWriter writerResponse = new StringWriter();
    IOUtils.copy(responseEntity.getContent(), writerResponse, "UTF-8");

    print response.getStatusLine()

    print writerResponse.toString()

} catch (IOException e) {
    print e
}
finally {
    httpClient.getConnectionManager().shutdown();
}

So doing it like this I get a code 400 error

HTTP/1.1 400 Bad Request

While attempting to geocode your batch input, an error occurred validating and processing the parameters that were provided.

Please validate the benchmark, vintage (if this is a geographies batch geocode request), and addressFile parameter values that are being used and retry your batch geocode request.

More information and documentation (available in HTML and PDF formats) about the Census Geocoder and how to use it can be found here: https://geocoding.geo.census.gov/geocoder/'> https://geocoding.geo.census.gov/

Any thoughts on what I'm doing incorrectly? The response isn't very specific as to what I'm doing wrong.

Answer 1

Turns out the API instructions are incorrect. The vintage and benchmark parameters need strings with integer values rather than strings with the names of the benchmark/vintages.