API Gateway to EventBridge integration request param issues

Question

Hello there,
I am trying to pass a slightly complex object in my eventbridge integration with my HTTP API GW, but I keep getting a Bad Request error every time I pass a string. This works fine if it is a numeric value.

```
 x-amazon-apigateway-integration:
        integrationSubtype: "EventBridge-PutEvents"
        requestParameters:
          Detail: '{"myvar": $request.header.test}'
          DetailType: xxxx
          Source: yyy
```

if the `header` has a numeric value for `test`, this works fine. If I pass a string it fails. I have tried escaping the quotes in multiple ways but it does not seem to work.

Jimmy Dahlqvist · Accepted Answer

Hi
Try and surround the header variable with { ... } that should work I think.

```
 x-amazon-apigateway-integration:
        integrationSubtype: "EventBridge-PutEvents"
        requestParameters:
          Detail: '{"myvar": "${request.header.test}"}'
          DetailType: xxxx
          Source: yyy
```

mithun_daa · Answer

Sweet!! That did it. Is this documented anywhere?

mithun_daa · Answer

On a different note, does API GW not allow you to pass thru the request body if you are passing anything else?

This works:
```
{"var1": "${request.header.H1}", "tid": "${request.header.H2}", "body":"${request.body.myvar}"}
```
But this doesn't:
```
{"var1": "${request.header.H1}", "tid": "${request.header.H2}", "body":"${request.body}"}
```

API Gateway to EventBridge integration request param issues

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