Could not parse request body into json: Unexpected character (\'-\' (code 45)) AWS Lambda + API + Postman

Question

I have been trying for a few days to get a parameter sent from the API Gateway in AWS to a Lambda function and I am having no success.

I decided to start from the b

Answer 1

Read the error message very carefully, it actually tells you the problem. For example, I got

Could not parse request body into json: Unexpected character (\'\"\' (code 34)): was expecting comma to separate Object entries

So the problem is that I'm missing a comma. I check my Lambda's Integration Request - Body Mapping Template:

{
"age" : $input.json('$.persondata.age'),
"income" : $input.json('$.persondata.income')
"height" : $input.json('$.persondata.height')
}

Can you spot the problem? I am missing a comma after the income line.

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Here is another example.

Could not parse request body into json: Unexpected character (\'}\' (code 125)): expected a value

When I look at the Integration Request - Body Mapping Template:

#set($inputRoot = $input.path('$'))
{
  "age" : $inputRoot.age,
  "height" : $inputRoot.height,
  "income" : $inputRootincome
}

Can you spot the problem? I am missing a dot in $inputRootincome.