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# Connection Type Parameter Values

POST https://app.polytomic.com/api/connection_types/{type}/parameter_values
Content-Type: application/json

Returns completion values for parameter fields on a connection type.

This endpoint is useful during connection setup, before a connection exists or
before you want to persist it. The supplied `parameters` are applied to a
temporary in-memory connection shape and used to resolve dependent options.

When an endpoint requires upstream authorization before it can return values,
Polytomic returns an error instead of guessing. In that case, complete the
authorization flow first and call the endpoint again.

Reference: https://apidocs.polytomic.com/api-reference/connections/get-type-parameter-values

## Authentication

- `Authorization` header (basic auth, required) — This is the Polytomic deployment key (on-premises only)
- `Authorization` header (bearer token, required) — This is the Polytomic API key

## Request

### Path parameters

- `type` (string, required)

### Body (application/json)

This endpoint expects a V2GetConnectionTypeParameterValuesRequestSchema.

- `field` (string, required)
- `parameters` (map from string to any, required, nullable)
- `connection_id` (string, optional)
- `query` (string, optional)

## Response

### 200

OK

- `data` (map from string to V2ConnectionParameterValuesResp, optional, nullable)

## Errors

### 400 Bad Request Error

Bad Request

- `key` (string, optional)
- `message` (string, optional)
- `metadata` (map from string to any, optional)
- `status` (integer, optional)

### 401 Unauthorized Error

Unauthorized

- `code` (integer, optional) — Application-specific error code.
- `context` (map from string to any, optional) — Application context.
- `error` (string, optional) — Error message.
- `status` (string, optional) — Status text.

### 404 Not Found Error

Not Found

- `key` (string, optional)
- `message` (string, optional)
- `metadata` (map from string to any, optional)
- `status` (integer, optional)

### 500 Internal Server Error

Internal Server Error

- `key` (string, optional)
- `message` (string, optional)
- `metadata` (map from string to any, optional)
- `status` (integer, optional)

## Types

### V2ConnectionParameterValuesResp

- `allows_creation` (boolean, optional)
- `values` (list of V2ConnectionParameterValue, optional, nullable)

### V2ConnectionParameterValue

- `label` (string, optional, nullable)
- `path` (string, optional, nullable)
- `value` (any, optional)

## Examples

**Request**

```json
{
  "field": "string",
  "parameters": {
    "byo_app_token": "secret",
    "name": "Example"
  }
}
```

**Response**

```json
{
  "data": {}
}
```

**SDK Code**

```python
import requests

url = "https://app.polytomic.com/api/connection_types/type/parameter_values"

payload = {
    "field": "string",
    "parameters": {
        "byo_app_token": "secret",
        "name": "Example"
    }
}
headers = {
    "X-Polytomic-Version": "X-Polytomic-Version"
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers, auth=("<username>", "<password>"))

print(response.json())
```

```javascript
const url = 'https://app.polytomic.com/api/connection_types/type/parameter_values';
const credentials = btoa("<username>:<password>");

const options = {
  method: 'POST',
  headers: {
    'X-Polytomic-Version': 'X-Polytomic-Version',
    Authorization: `Basic ${credentials}`,
    'Content-Type': 'application/json'
  },
  body: '{"field":"string","parameters":{"byo_app_token":"secret","name":"Example"}}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.polytomic.com/api/connection_types/type/parameter_values"

	payload := strings.NewReader("{\n  \"field\": \"string\",\n  \"parameters\": {\n    \"byo_app_token\": \"secret\",\n    \"name\": \"Example\"\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-Polytomic-Version", "X-Polytomic-Version")
	req.SetBasicAuth("<username>", "<password>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://app.polytomic.com/api/connection_types/type/parameter_values")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-Polytomic-Version"] = 'X-Polytomic-Version'
request.basic_auth("<username>", "<password>")
request["Content-Type"] = 'application/json'
request.body = "{\n  \"field\": \"string\",\n  \"parameters\": {\n    \"byo_app_token\": \"secret\",\n    \"name\": \"Example\"\n  }\n}"

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://app.polytomic.com/api/connection_types/type/parameter_values")
  .header("X-Polytomic-Version", "X-Polytomic-Version")
  .basicAuth("<username>", "<password>")
  .header("Content-Type", "application/json")
  .body("{\n  \"field\": \"string\",\n  \"parameters\": {\n    \"byo_app_token\": \"secret\",\n    \"name\": \"Example\"\n  }\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://app.polytomic.com/api/connection_types/type/parameter_values', [
  'body' => '{
  "field": "string",
  "parameters": {
    "byo_app_token": "secret",
    "name": "Example"
  }
}',
  'headers' => [
    'Content-Type' => 'application/json',
    'X-Polytomic-Version' => 'X-Polytomic-Version',
  ],
    'auth' => ['<username>', '<password>'],
]);

echo $response->getBody();
```

```csharp
using RestSharp;
using RestSharp.Authenticators;

var client = new RestClient("https://app.polytomic.com/api/connection_types/type/parameter_values");
client.Authenticator = new HttpBasicAuthenticator("<username>", "<password>");
var request = new RestRequest(Method.POST);
request.AddHeader("X-Polytomic-Version", "X-Polytomic-Version");

request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"field\": \"string\",\n  \"parameters\": {\n    \"byo_app_token\": \"secret\",\n    \"name\": \"Example\"\n  }\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let credentials = Data("<username>:<password>".utf8).base64EncodedString()

let headers = [
  "X-Polytomic-Version": "X-Polytomic-Version",
  "Authorization": "Basic \(credentials)",
  "Content-Type": "application/json"
]
let parameters = [
  "field": "string",
  "parameters": [
    "byo_app_token": "secret",
    "name": "Example"
  ]
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://app.polytomic.com/api/connection_types/type/parameter_values")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```