表題そのまま。

Cognito Authorizer差し込んだAPI Gateway経由でLambda関数を起動した時に、Lambda関数のeventから取得できるjsonのメモ。取得日は2022年7月11日。

パラメータ

APIはREST APIで、Webアプリ上からaxiosで叩いている。

usernameを拾うなら event.requestContext.authorizer.claims.cognito:username

`{
    "resource":"/testapi",
    "path":"/testapi",
    "httpMethod":"GET",
    "headers":{
       "Accept":"application/json, text/plain, */*",
       "Authorization":"xxxx"
       "CloudFront-Forwarded-Proto":"https",
       "CloudFront-Is-Desktop-Viewer":"true",
       "CloudFront-Is-Mobile-Viewer":"false",
       "CloudFront-Is-SmartTV-Viewer":"false",
       "CloudFront-Is-Tablet-Viewer":"false",
       "CloudFront-Viewer-Country":"US",
       "Content-Type":"application/json",
       "Host":"example.com",
       "User-Agent":"axios/0.27.2",
       "Via":"1.1 xxxx.cloudfront.net (CloudFront)",
       "X-Amz-Cf-Id":"xxxx==",
       "X-Amzn-Trace-Id":"Root=1-xxxx-xxxx",
       "X-Forwarded-For":"xxx.xxx.xxx.xxx, xxx.xxx.xxx.xxx",
       "X-Forwarded-Port":"443",
       "X-Forwarded-Proto":"https",
       "X-Requested-With":"XMLHttpRequest"
    },
    "multiValueHeaders":{
       "Accept":[
          "application/json, text/plain, */*"
       ],
       "Authorization":[
          "xxxx"
       ],
       "CloudFront-Forwarded-Proto":[
          "https"
       ],
       "CloudFront-Is-Desktop-Viewer":[
          "true"
       ],
       "CloudFront-Is-Mobile-Viewer":[
          "false"
       ],
       "CloudFront-Is-SmartTV-Viewer":[
          "false"
       ],
       "CloudFront-Is-Tablet-Viewer":[
          "false"
       ],
       "CloudFront-Viewer-Country":[
          "US"
       ],
       "Content-Type":[
          "application/json"
       ],
       "Host":[
          "xxxx"
       ],
       "User-Agent":[
          "axios/0.27.2"
       ],
       "Via":[
          "1.1 xxxx.cloudfront.net (CloudFront)"
       ],
       "X-Amz-Cf-Id":[
          "xxxx=="
       ],
       "X-Amzn-Trace-Id":[
          "Root=1-xxxx-xxxx"
       ],
       "X-Forwarded-For":[
          "xxx.xxx.xxx.xxx, xxx.xxx.xxx.xxx"
       ],
       "X-Forwarded-Port":[
          "443"
       ],
       "X-Forwarded-Proto":[
          "https"
       ],
       "X-Requested-With":[
          "XMLHttpRequest"
       ]
    },
    "queryStringParameters":"None",
    "multiValueQueryStringParameters":"None",
    "pathParameters":"None",
    "stageVariables":"None",
    "requestContext":{
       "resourceId":"xxxx",
       "authorizer":{
          "claims":{
             "sub":"xxxx-xxxx-xxxx-xxxx-xxxx",
             "aud":"xxxx",
             "event_id":"xxxx-xxxx-xxxx-xxxx-xxxx",
             "token_use":"id",
             "auth_time":"1657514663",
             "iss":"https://cognito-idp.ap-northeast-1.amazonaws.com/ap-northeast-1_xxxx",
             "cognito:username":"xxxx",
             "exp":"Mon Jul 11 05:44:22 UTC 2022",
             "iat":"Mon Jul 11 04:44:23 UTC 2022"
          }
       },
       "resourcePath":"/testapi",
       "httpMethod":"GET",
       "extendedRequestId":"xxxx=",
       "requestTime":"11/Jul/2022:04:44:26 +0000",
       "path":"/apitest",
       "accountId":"xxxx",
       "protocol":"HTTP/1.1",
       "stage":"dev",
       "domainPrefix":"hoge",
       "requestTimeEpoch":1657514666712,
       "requestId":"xxxx-xxxx-xxxx-xxxx-xxxx",
       "identity":{
          "cognitoIdentityPoolId":"None",
          "accountId":"None",
          "cognitoIdentityId":"None",
          "caller":"None",
          "sourceIp":"xxx.xxx.xx.xxx",
          "principalOrgId":"None",
          "accessKey":"None",
          "cognitoAuthenticationType":"None",
          "cognitoAuthenticationProvider":"None",
          "userArn":"None",
          "userAgent":"axios/0.27.2",
          "user":"None"
       },
       "domainName":"example.com",
       "apiId":"xxxx"
    },
    "body":"None",
    "isBase64Encoded":false
 }
 `

長い。