Connecting to the Selling Partner API
How to connect to the SP-API.
Before your application can connect to the Selling Partner API, you must register it and it must be authorized by a selling partner. Refer to Registering your application and Authorizing Selling Partner API applications.
These instructions show you the steps for making a call to the Selling Partner API. For help with constructing a Selling Partner API URI and adding headers to it, refer to Generating a Java client library. For a more complete solution that includes code for exchanging LWA tokens, refer to Generating a Java SDK with LWA token exchange.
Step 1. Request a Login with Amazon access token
A Login with Amazon (LWA) access token authorizes your application to take certain actions on behalf of a selling partner. An LWA access token expires one hour after it is issued.
Note about restricted operations. An LWA access token must be included in calls to all operations except restricted operations, which return Personally Identifiable Information (PII). When calling restricted operations, instead of including an LWA access token, you include a Restricted Access Token (RDT). For information about getting RDTs and calling restricted operations, refer to the Tokens API Use Case Guide.
To request an LWA access token, make a secure HTTP POST to the LWA authentication server (https://api.amazon.com/auth/o2/token
) with the following parameters:
Name | Description | Required |
---|---|---|
grant_type | The type of access grant requested. Values:
| Yes |
refresh_token | The LWA refresh token. Get this value when the selling partner authorizes your application. For more information, refer to Authorizing Selling Partner API applications. | No. Include refresh_token for calling operations that require authorization from a selling partner. If you include refresh_token, do not include scope. |
scope | The scope of the LWA authorization grant. Values:
| No. Include scope for calling a grantless operation. If you include scope, do not include refresh_token. |
client_id | Get this value when you register your application. Refer to Viewing your developer information. | Yes |
client_secret | Get this value when you register your application. Refer to Viewing your developer information. | Yes |
Example for calling an operation that requires selling partner authorization:
POST /auth/o2/token HTTP/l.l
Host: api.amazon.com
Content-Type: application/x-www-form-urlencoded;charset=UTF-8
grant_type=refresh_token
&refresh_token=Aztr|...
&client_id=foodev
&client_secret=Y76SDl2F
Example for calling a grantless operation:
POST /auth/o2/token HTTP/l.l
Host: api.amazon.com
Content-Type: application/x-www-form-urlencoded;charset=UTF-8
grant_type=client_credentials
&scope=sellingpartnerapi::notifications
&client_id=foodev
&client_secret=Y76SDl2F
Tip: To avoid getting an untrusted certificate authority (CA) error when calling the LWA authorization server, be sure to update your trust store so that your application trusts the LWA authorization server.
Response
A successful response includes the following values.
Name | Description |
---|---|
access_token | The LWA access token. Maximum size: 2048 bytes. |
token_type | The type of token returned. Must be bearer. |
expires_in | The number of seconds before the LWA access token becomes invalid. |
refresh_token | The LWA refresh token that you submitted in the request. Maximum size: 2048 bytes. |
HTTP/l.l 200 OK
Content-Type: application/json;charset UTF-8
Cache-Control: no-store
Pragma:no-cache
{
"access_token":"Atza|IQEBLjAsAhRmHjNgHpi0U-Dme37rR6CuUpSREXAMPLE",
"token_type":"bearer",
"expires_in":3600,
"refresh_token":"Atzr|IQEBLzAtAhRPpMJxdwVz2Nn6f2y-tpJX2DeXEXAMPLE"
}
For more information, visit the Authorization Code Grant page in the Login with Amazon documentation.
Step 2. Construct a Selling Partner API URI
Here are the components of a Selling Partner API URI.
Name | Description | Example |
---|---|---|
HTTP method | The HTTP method. | GET |
Endpoint | A Selling Partner API endpoint. | https://sellingpartnerapi-na.amazon.com |
Path | The Selling Partner API section/version. number of the section/resource. | /fba/inbound/v0/shipments/{shipmentId}/preorder/confirm |
Query string | The query parameters. | ?marketplace=ATVPDKIKX0DER |
Path parameter | The path parameters. | shipmentId1 |
For example:
PUT https://sellingpartnerapi-na.amazon.com/fba/inbound/v0/shipments/shipmentId1/preorder/confirm?MarketplaceId=ATVPDKIKX0DER&NeedByDate=2020-10-10
Step 3. Add headers to the URI
Add headers to the URI that you constructed in Step 2. Construct a Selling Partner API URI. Here are the HTTP headers to include in requests to the Selling Partner API:
Request headers
Name | Description |
---|---|
host | The marketplace endpoint. Refer to Selling Partner API endpoints. |
x-amz-access-token | The LWA access token. Refer to Step 1. Request a Login with Amazon access token. Note about restricted operations. If you are calling a restricted operation, pass in a Restricted Data Token (RDT) here instead of an LWA access token. For information about getting RDTs and calling restricted operations, refer to the Tokens API Use Case Guide in the Tokens API Use Case Guide. |
x-amz-date | The date and time of your request. |
user-agent | Your application name and version number, platform, and programming language. These help Amazon diagnose and fix problems you might encounter with the service. Refer to Include a User-Agent header in all requests. |
Here is an example of a request to the Selling Partner API with URI and headers but no signing information:
PUT /fba/inbound/v0/shipments/shipmentId1/preorder/confirm?MarketplaceId=ATVPDKIKX0DER&NeedByDate=2020-10-10 HTTP/1.1
host: sellingpartnerapi-na.amazon.com
user-agent: My Selling Tool/2.0 (Language=Java/1.8.0.221;
Platform=Windows/10)
x-amz-access-token=Atza|IQEBLjAsAhRmHjNgHpi0U-Dme37rR6CuUpSREXAMPLE
x-amz-date: 20190430T123600Z
Updated 28 days ago