如何格式化步骤函数 API 调用中的标头字段

huangapple
go评论92阅读模式
英文:

How do i format the headers field in step function api invoke

问题

  1. 我正在尝试通过步函数执行 AWS API。我需要在标头字段中传递 authorizationToken 值。
  3. 我收到以下错误 -
  5. 字段 'authorizationToken.$' 的值必须是包含 JSONPath 的 STRING，但实际是一个 ARRAY (位于 /States/GetDeclarations/Parameters)
  7. 这是 API 调用的默认语法 -

"Headers": {
"Header1": [
"HeaderValue1"
],
"Header2": [
"HeaderValue2",
"HeaderValue3"
]
}

  2. 当我修改为以下内容时 -

"Headers": {
"authorizationToken": [
"1234"
],
"Header2": [
"HeaderValue2",
"HeaderValue3"
]
}

  2. 它可以正常工作。
  4. 我需要使 "authorizationToken" 的值成为一个从输入中获取其值的变量。
  6. 我的输入数据如下 -
  8. {
  9.   "xxx": "123",
  10.   "yyy": "123",
  11.   "zzz": "123",
  12.   "InputToken": "123",
  13.   "aaa": "123"
  14. }
英文:

I am trying to execute a AWS api via step function. I need to pass the authorizationToken value in the header field.

  1. {
  2.   "ApiEndpoint": "xyz.execute-api.ap-southeast-2.amazonaws.com",
  3.   "Method": "POST",
  4.   "Headers": {
  5.     "authorizationToken.$": [
  6.       "$.InputToken"
  7.     ]
  8.   },
  9.   "Stage": "test",
  10.   "Path": "/",
  11.   "RequestBody": {
  12.     "productType": [],
  13.     "xxx.$": "$.xxx",
  14.     "yyy.$": "$.yyy",
  15.     "zzz.$": "$.zzz"
  16.   },
  17.   "AuthType": "IAM_ROLE"
  18. }

I am getting the following error -

The value for the field 'authorizationToken.$' must be a STRING that contains a JSONPath but was an ARRAY (at /States/GetDeclarations/Parameters)

This is the default syntax for the API invoke -

  1. "Headers": {
  2.     "Header1": [
  3.       "HeaderValue1"
  4.     ],
  5.     "Header2": [
  6.       "HeaderValue2",
  7.       "HeaderValue3"
  8.     ]
  9.   }

When i modify this to

  1. "Headers": {
  2.     "authorizationToken": [
  3.       "1234"
  4.     ],
  5.     "Header2": [
  6.       "HeaderValue2",
  7.       "HeaderValue3"
  8.     ]
  9.   }

It works fine.

I need to make the value of "authorizationToken" a variable that takes its value from the input.

My Input data looks like this

{
"xxx": "123",
"yyy": "123",
"zzz": "123",
"InputToken": "123",
"aaa": "123"
}

答案1

得分: 1

你需要使用如下所示的States.Array内置函数。这允许你将一个数组注入到Parameters块中的节点中。在这种情况下，你只想要数组中的单个项目，但你也可以包含多个项目（例如 States.Array($.item1,$.item2,$.item3)）。

同时也查看其他内置函数，它们对克服诸如此类挑战非常有用。

  1. {
  2.   "ApiEndpoint": "ccqk9ijm0h.execute-api.ap-southeast-2.amazonaws.com",
  3.   "Method": "POST",
  4.   "Headers": {
  5.     "authorizationToken.$": "States.Array($.InputToken)"
  6.   },
  7.   "Stage": "test",
  8.   "Path": "/",
  9.   "RequestBody": {
  10.     "productType": [],
  11.     "xxx.$": "$.xxx",
  12.     "yyy.$": "$.yyy",
  13.     "zzz.$": "$.zzz"
  14.   },
  15.   "AuthType": "IAM_ROLE"
  16. }
英文:

You need to use the States.Array Intrinsic Function as I've shown below. This allows you to inject an array into a node in your Parameters block. In this case, you just want a single item in the array, but you can include multiple items as well (e.g., States.Array($.item1,$.item2,$.item3)).

Check out the other Intrinsic Functions as well, as they are handy for overcoming challenges like this.

  1. {
  2.   "ApiEndpoint": "ccqk9ijm0h.execute-api.ap-southeast-2.amazonaws.com",
  3.   "Method": "POST",
  4.   "Headers": {
  5.     "authorizationToken.$": "States.Array($.InputToken)"
  6.   },
  7.   "Stage": "test",
  8.   "Path": "/",
  9.   "RequestBody": {
  10.     "productType": [],
  11.     "xxx.$": "$.xxx",
  12.     "yyy.$": "$.yyy",
  13.     "zzz.$": "$.zzz"
  14.   },
  15.   "AuthType": "IAM_ROLE"
  16. }

huangapple
  • 本文由 发表于 2023年2月19日 10:03:23
  • 转载请务必保留本文链接：https://go.coder-hub.com/75497560.html
  • amazon-web-services
  • api
  • aws-step-functions
  • header
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