import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class DocumentAttachmentsApiExample {

    public static void main(String[] args) throws IOException, InterruptedException { 
        String polarionToken = "{personal_access_token}";

        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create("https://example.com/polarion/rest/v1/projects/{projectId}/spaces/{spaceId}/documents/{documentName}/attachments/{attachmentId}?fields[categories]={fields[categories]}&fields[document_attachments]={fields[document_attachments]}&fields[document_comments]={fields[document_comments]}&fields[document_parts]={fields[document_parts]}&fields[documents]={fields[documents]}&fields[enumerations]={fields[enumerations]}&fields[externallylinkedworkitems]={fields[externallylinkedworkitems]}&fields[featureselections]={fields[featureselections]}&fields[globalroles]={fields[globalroles]}&fields[icons]={fields[icons]}&fields[jobs]={fields[jobs]}&fields[linkedoslcresources]={fields[linkedoslcresources]}&fields[linkedworkitems]={fields[linkedworkitems]}&fields[page_attachments]={fields[page_attachments]}&fields[pages]={fields[pages]}&fields[plans]={fields[plans]}&fields[projectroles]={fields[projectroles]}&fields[projects]={fields[projects]}&fields[projecttemplates]={fields[projecttemplates]}&fields[revisions]={fields[revisions]}&fields[testparameter_definitions]={fields[testparameter_definitions]}&fields[testparameters]={fields[testparameters]}&fields[testrecord_attachments]={fields[testrecord_attachments]}&fields[testrecords]={fields[testrecords]}&fields[testrun_attachments]={fields[testrun_attachments]}&fields[testrun_comments]={fields[testrun_comments]}&fields[testruns]={fields[testruns]}&fields[teststep_results]={fields[teststep_results]}&fields[teststepresult_attachments]={fields[teststepresult_attachments]}&fields[teststeps]={fields[teststeps]}&fields[usergroups]={fields[usergroups]}&fields[users]={fields[users]}&fields[workitem_approvals]={fields[workitem_approvals]}&fields[workitem_attachments]={fields[workitem_attachments]}&fields[workitem_comments]={fields[workitem_comments]}&fields[workitems]={fields[workitems]}&fields[workrecords]={fields[workrecords]}&include={include}&revision={revision}"))
                .header("Accept", "application/json")
                .header("Authorization", "Bearer " + polarionToken)
                .GET()
                .build();

        HttpClient client = HttpClient.newHttpClient();
        HttpResponse response = client.send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response);
    }
}

const options = {
    method: 'GET',
    headers: { 
        'Authorization': 'Bearer {personal_access_token}',
        'Accept': 'application/json'
    }
}

fetch('https://example.com/polarion/rest/v1/projects/{projectId}/spaces/{spaceId}/documents/{documentName}/attachments/{attachmentId}?fields[categories]={fields[categories]}&fields[document_attachments]={fields[document_attachments]}&fields[document_comments]={fields[document_comments]}&fields[document_parts]={fields[document_parts]}&fields[documents]={fields[documents]}&fields[enumerations]={fields[enumerations]}&fields[externallylinkedworkitems]={fields[externallylinkedworkitems]}&fields[featureselections]={fields[featureselections]}&fields[globalroles]={fields[globalroles]}&fields[icons]={fields[icons]}&fields[jobs]={fields[jobs]}&fields[linkedoslcresources]={fields[linkedoslcresources]}&fields[linkedworkitems]={fields[linkedworkitems]}&fields[page_attachments]={fields[page_attachments]}&fields[pages]={fields[pages]}&fields[plans]={fields[plans]}&fields[projectroles]={fields[projectroles]}&fields[projects]={fields[projects]}&fields[projecttemplates]={fields[projecttemplates]}&fields[revisions]={fields[revisions]}&fields[testparameter_definitions]={fields[testparameter_definitions]}&fields[testparameters]={fields[testparameters]}&fields[testrecord_attachments]={fields[testrecord_attachments]}&fields[testrecords]={fields[testrecords]}&fields[testrun_attachments]={fields[testrun_attachments]}&fields[testrun_comments]={fields[testrun_comments]}&fields[testruns]={fields[testruns]}&fields[teststep_results]={fields[teststep_results]}&fields[teststepresult_attachments]={fields[teststepresult_attachments]}&fields[teststeps]={fields[teststeps]}&fields[usergroups]={fields[usergroups]}&fields[users]={fields[users]}&fields[workitem_approvals]={fields[workitem_approvals]}&fields[workitem_attachments]={fields[workitem_attachments]}&fields[workitem_comments]={fields[workitem_comments]}&fields[workitems]={fields[workitems]}&fields[workrecords]={fields[workrecords]}&include={include}&revision={revision}', options)
    .then(response => console.log(response))
    .catch(error => console.log('error', error));

var client = new RestClient("https://example.com/polarion/rest/v1/projects/{projectId}/spaces/{spaceId}/documents/{documentName}/attachments/{attachmentId}?fields[categories]={fields[categories]}&fields[document_attachments]={fields[document_attachments]}&fields[document_comments]={fields[document_comments]}&fields[document_parts]={fields[document_parts]}&fields[documents]={fields[documents]}&fields[enumerations]={fields[enumerations]}&fields[externallylinkedworkitems]={fields[externallylinkedworkitems]}&fields[featureselections]={fields[featureselections]}&fields[globalroles]={fields[globalroles]}&fields[icons]={fields[icons]}&fields[jobs]={fields[jobs]}&fields[linkedoslcresources]={fields[linkedoslcresources]}&fields[linkedworkitems]={fields[linkedworkitems]}&fields[page_attachments]={fields[page_attachments]}&fields[pages]={fields[pages]}&fields[plans]={fields[plans]}&fields[projectroles]={fields[projectroles]}&fields[projects]={fields[projects]}&fields[projecttemplates]={fields[projecttemplates]}&fields[revisions]={fields[revisions]}&fields[testparameter_definitions]={fields[testparameter_definitions]}&fields[testparameters]={fields[testparameters]}&fields[testrecord_attachments]={fields[testrecord_attachments]}&fields[testrecords]={fields[testrecords]}&fields[testrun_attachments]={fields[testrun_attachments]}&fields[testrun_comments]={fields[testrun_comments]}&fields[testruns]={fields[testruns]}&fields[teststep_results]={fields[teststep_results]}&fields[teststepresult_attachments]={fields[teststepresult_attachments]}&fields[teststeps]={fields[teststeps]}&fields[usergroups]={fields[usergroups]}&fields[users]={fields[users]}&fields[workitem_approvals]={fields[workitem_approvals]}&fields[workitem_attachments]={fields[workitem_attachments]}&fields[workitem_comments]={fields[workitem_comments]}&fields[workitems]={fields[workitems]}&fields[workrecords]={fields[workrecords]}&include={include}&revision={revision}");
client.Timeout = -1;
var request = new RestRequest();
request.Method = Method.GET;
request.AddHeader("Accept", "application/json");
request.AddHeader("Authorization", "Bearer {personal_access_token}");
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class DocumentAttachmentsApiExample {

    public static void main(String[] args) throws IOException, InterruptedException { 
        String polarionToken = "{personal_access_token}";

        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create("https://example.com/polarion/rest/v1/projects/{projectId}/spaces/{spaceId}/documents/{documentName}/attachments/{attachmentId}/content?revision={revision}"))
                .header("Accept", "application/octet-stream, application/json")
                .header("Authorization", "Bearer " + polarionToken)
                .GET()
                .build();

        HttpClient client = HttpClient.newHttpClient();
        HttpResponse response = client.send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response);
    }
}

const options = {
    method: 'GET',
    headers: { 
        'Authorization': 'Bearer {personal_access_token}',
        'Accept': 'application/octet-stream, application/json'
    }
}

fetch('https://example.com/polarion/rest/v1/projects/{projectId}/spaces/{spaceId}/documents/{documentName}/attachments/{attachmentId}/content?revision={revision}', options)
    .then(response => console.log(response))
    .catch(error => console.log('error', error));

var client = new RestClient("https://example.com/polarion/rest/v1/projects/{projectId}/spaces/{spaceId}/documents/{documentName}/attachments/{attachmentId}/content?revision={revision}");
client.Timeout = -1;
var request = new RestRequest();
request.Method = Method.GET;
request.AddHeader("Accept", "application/octet-stream, application/json");
request.AddHeader("Authorization", "Bearer {personal_access_token}");
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);