我试图测试发送事件到亚马逊的事件网关为我的Alexa智能家居技能使用 Postman ,但我一直收到一个“无效的访问令牌异常”.我已经阅读了Amazon's documentation在这方面,但显然我错过了一些东西.
当我启用技能时,我的Smart Home Lambda会收到AcceptGrant。
{
"directive": {
"header": {
"namespace": "Alexa.Authorization",
"name": "AcceptGrant",
"messageId": "b2862179-bc56-4bb2-ac05-ce55c7a3e977",
"payloadVersion": "3"
},
"payload": {
"grant": {
"type": "OAuth2.AuthorizationCode",
"code": "ANSVjPzpTDBsdfoRSyrs"
},
"grantee": {
"type": "BearerToken",
"token": "Atza|IwEB..."
}
}
}
}
我的lambda发送POST到'https://api.amazon.com/auth/o2/token'以接收 Access 和 Refresh 令牌。然后它存储这些令牌。接下来,我的Lamdba回应如下:
{
"event": {
"header": {
"namespace": "Alexa.Authorization",
"name": "AcceptGrant.Response",
"messageId": "b2862179-bc56-4bb2-ac05-ce55c7a3e977",
"payloadVersion": "3"
},
"payload": {}
}
}
然后,我得到一个消息网页,我已经成功地链接我的技能-一切都很好.
接下来,我尝试使用Postman应用程序将事件发送到Amazon的Alexa事件网关。我将访问令牌(我也尝试了刷新令牌)作为“BearerToken”类型放在标头中,并放在“endpoint”对象的“scope”中。
POSThttps://api.amazonalexa.com/v3/events?Content-Type=application/json&charset=UTF-8,头部指定承载令牌(之前收到的访问令牌),主体包含以下内容:
{
"event": {
"header": {
"messageId": "abc-123-def-456",
"namespace": "Alexa",
"name": "ChangeReport",
"payloadVersion": "3"
},
"endpoint": {
"scope": {
"type": "BearerToken",
"token": "<access token>"
},
"endpointId": "MySmartSwitch-001"
},
"payload": {
"change": {
"cause": {
"type": "RULE_TRIGGER"
},
"properties": [
{
"namespace": "Alexa.ModeController",
"name": "mode",
"value": "Backup",
"timeOfSample": "2020-01-02T09:30:00ZZ",
"uncertaintyInMilliseconds": 50
}
]
}
}
},
"context": {
"properties": [
{
"namespace": "Alexa.PowerController",
"name": "powerState",
"value": "ON",
"timeOfSample": "2020-01-02T09:30:00Z",
"uncertaintyInMilliseconds": 60000
},
{
"namespace": "Alexa.EndpointHealth",
"name": "connectivity",
"value": {
"value": "OK"
},
"timeOfSample": "2020-01-02T09:30:00Z",
"uncertaintyInMilliseconds": 0
}
]
}
}
收到的响应是“401未授权”
{
"header": {
"namespace": "System",
"name": "Exception",
"messageId": "95bd23c3-76e6-472b-9c6d-74d436e1eb61"
},
"payload": {
"code": "INVALID_ACCESS_TOKEN_EXCEPTION",
"description": "Access token is not valid."
}
}
1条答案
按热度按时间5cnsuln71#
我发现问题所在了。我错误地发送了参数:Content-Type=application/json和charset=UTF-8以及将它们包含在头文件中-我的错。你只需要把它们包含在标题中。