> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://docs.greenlane.ai/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.greenlane.ai/_mcp/server. # Update price POST https://pos.fuel.greenlane.ai/gfp/update_price Content-Type: application/json The `update_price` API allows for scheduling price updates for a particular site. By specifying an `effective_date`, future updates to prices can occur. If price updates are made in real-time, the `effective_date` can be the current time. The API takes both a debit/cash price (retail price) and a credit price for each product. If only a single price is available, use the `retail_price_per_unit` field. The API may be called as many times as prices change during the day, or in a set interval. Additional pricing data such as tax information and contract details between merchants will be provided separately (via email, ftp, etc). **Update Behavior:** The `effective_date` parameter governs whether this API will do an insert or a replacement. If there is an existing update with the same `effective_date`, the API will discard the original data and replace it with this request's data. Updates with `effective_date` in the past will be rejected with a 400 Bad Request. There is a small tolerance allowing for clock skew. Real-time updates should use the current time to ensure they are effective. Reference: https://docs.greenlane.ai/greenlane-fuel-platform/update-price ## Authentication - `Authorization` header (bearer token, required) ## Request ### Body (application/json) - `merchant_id` (string, required) - `site_id` (string, required) - `pricing_update` (object, required) - `effective_date` (datetime, required) - `fuel_products` (list of object, required) - `product_code` (string, required) - `retail_price_per_unit` (double, required) - `unit_of_measure` (string, required) - `credit_price_per_unit` (double, required) ## Response ### 200 OK - `merchant_id` (string, required) - `site_id` (string, required) - `next_pricing_updates` (list of object, required) - `effective_date` (datetime, required) - `fuel_products` (list of object, required) - `product_code` (string, required) - `retail_price_per_unit` (double, required) - `cost_price_per_unit` (double, required) - `credit_price_per_unit` (double, required) - `unit_of_measure` (string, required) ## Examples **Request** ```json { "merchant_id": "merchant-id", "site_id": "331", "pricing_update": { "effective_date": "2026-09-01T06:00:00Z", "fuel_products": [ { "product_code": "DIESEL_ULSD", "retail_price_per_unit": 3.999, "unit_of_measure": "GALLON", "credit_price_per_unit": 4.099 } ] } } ``` **Response** ```json { "merchant_id": "merchant-123", "site_id": "331", "next_pricing_updates": [ { "effective_date": "2026-09-01T06:00:00Z", "fuel_products": [ { "product_code": "DEF", "retail_price_per_unit": 4.866, "cost_price_per_unit": 4.803, "credit_price_per_unit": 4.871, "unit_of_measure": "GALLON" } ] }, { "effective_date": "2026-09-02T06:00:00Z", "fuel_products": [ { "product_code": "REEFER", "retail_price_per_unit": 5.059, "cost_price_per_unit": 5, "credit_price_per_unit": 5.109, "unit_of_measure": "GALLON" } ] } ] } ``` **SDK Code** ```python Update price_example import requests url = "https://pos.fuel.greenlane.ai/gfp/update_price" payload = { "merchant_id": "merchant-id", "site_id": "331", "pricing_update": { "effective_date": "2026-09-01T06:00:00Z", "fuel_products": [ { "product_code": "DIESEL_ULSD", "retail_price_per_unit": 3.999, "unit_of_measure": "GALLON", "credit_price_per_unit": 4.099 } ] } } headers = { "Authorization": "Bearer ", "Content-Type": "application/json" } response = requests.post(url, json=payload, headers=headers) print(response.json()) ``` ```javascript Update price_example const url = 'https://pos.fuel.greenlane.ai/gfp/update_price'; const options = { method: 'POST', headers: {Authorization: 'Bearer ', 'Content-Type': 'application/json'}, body: '{"merchant_id":"merchant-id","site_id":"331","pricing_update":{"effective_date":"2026-09-01T06:00:00Z","fuel_products":[{"product_code":"DIESEL_ULSD","retail_price_per_unit":3.999,"unit_of_measure":"GALLON","credit_price_per_unit":4.099}]}}' }; try { const response = await fetch(url, options); const data = await response.json(); console.log(data); } catch (error) { console.error(error); } ``` ```go Update price_example package main import ( "fmt" "strings" "net/http" "io" ) func main() { url := "https://pos.fuel.greenlane.ai/gfp/update_price" payload := strings.NewReader("{\n \"merchant_id\": \"merchant-id\",\n \"site_id\": \"331\",\n \"pricing_update\": {\n \"effective_date\": \"2026-09-01T06:00:00Z\",\n \"fuel_products\": [\n {\n \"product_code\": \"DIESEL_ULSD\",\n \"retail_price_per_unit\": 3.999,\n \"unit_of_measure\": \"GALLON\",\n \"credit_price_per_unit\": 4.099\n }\n ]\n }\n}") req, _ := http.NewRequest("POST", url, payload) req.Header.Add("Authorization", "Bearer ") 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 Update price_example require 'uri' require 'net/http' url = URI("https://pos.fuel.greenlane.ai/gfp/update_price") http = Net::HTTP.new(url.host, url.port) http.use_ssl = true request = Net::HTTP::Post.new(url) request["Authorization"] = 'Bearer ' request["Content-Type"] = 'application/json' request.body = "{\n \"merchant_id\": \"merchant-id\",\n \"site_id\": \"331\",\n \"pricing_update\": {\n \"effective_date\": \"2026-09-01T06:00:00Z\",\n \"fuel_products\": [\n {\n \"product_code\": \"DIESEL_ULSD\",\n \"retail_price_per_unit\": 3.999,\n \"unit_of_measure\": \"GALLON\",\n \"credit_price_per_unit\": 4.099\n }\n ]\n }\n}" response = http.request(request) puts response.read_body ``` ```java Update price_example import com.mashape.unirest.http.HttpResponse; import com.mashape.unirest.http.Unirest; HttpResponse response = Unirest.post("https://pos.fuel.greenlane.ai/gfp/update_price") .header("Authorization", "Bearer ") .header("Content-Type", "application/json") .body("{\n \"merchant_id\": \"merchant-id\",\n \"site_id\": \"331\",\n \"pricing_update\": {\n \"effective_date\": \"2026-09-01T06:00:00Z\",\n \"fuel_products\": [\n {\n \"product_code\": \"DIESEL_ULSD\",\n \"retail_price_per_unit\": 3.999,\n \"unit_of_measure\": \"GALLON\",\n \"credit_price_per_unit\": 4.099\n }\n ]\n }\n}") .asString(); ``` ```php Update price_example request('POST', 'https://pos.fuel.greenlane.ai/gfp/update_price', [ 'body' => '{ "merchant_id": "merchant-id", "site_id": "331", "pricing_update": { "effective_date": "2026-09-01T06:00:00Z", "fuel_products": [ { "product_code": "DIESEL_ULSD", "retail_price_per_unit": 3.999, "unit_of_measure": "GALLON", "credit_price_per_unit": 4.099 } ] } }', 'headers' => [ 'Authorization' => 'Bearer ', 'Content-Type' => 'application/json', ], ]); echo $response->getBody(); ``` ```csharp Update price_example using RestSharp; var client = new RestClient("https://pos.fuel.greenlane.ai/gfp/update_price"); var request = new RestRequest(Method.POST); request.AddHeader("Authorization", "Bearer "); request.AddHeader("Content-Type", "application/json"); request.AddParameter("application/json", "{\n \"merchant_id\": \"merchant-id\",\n \"site_id\": \"331\",\n \"pricing_update\": {\n \"effective_date\": \"2026-09-01T06:00:00Z\",\n \"fuel_products\": [\n {\n \"product_code\": \"DIESEL_ULSD\",\n \"retail_price_per_unit\": 3.999,\n \"unit_of_measure\": \"GALLON\",\n \"credit_price_per_unit\": 4.099\n }\n ]\n }\n}", ParameterType.RequestBody); IRestResponse response = client.Execute(request); ``` ```swift Update price_example import Foundation let headers = [ "Authorization": "Bearer ", "Content-Type": "application/json" ] let parameters = [ "merchant_id": "merchant-id", "site_id": "331", "pricing_update": [ "effective_date": "2026-09-01T06:00:00Z", "fuel_products": [ [ "product_code": "DIESEL_ULSD", "retail_price_per_unit": 3.999, "unit_of_measure": "GALLON", "credit_price_per_unit": 4.099 ] ] ] ] as [String : Any] let postData = JSONSerialization.data(withJSONObject: parameters, options: []) let request = NSMutableURLRequest(url: NSURL(string: "https://pos.fuel.greenlane.ai/gfp/update_price")! 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() ```