Unable to retrieve JSON value by specifying the key
0
Hey everyone, I'm sending a JSON Object to my Lambda function (Node.js), I basically want to get a few values from the JSON and convert them into a specific format and then send those values back in the response. I am able to read the values using JSON.parse() but for some reason I cannot access a particular value by specifying the key. In the screenshot you can see that I am typing in myObj1.blueprint but I get an error saying that it is undefined. Any help would be appreciated!
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Parse the JSON body explicitly:
const event = JSON.parse(event);
Access properties using dot notation:
const blueprint = event.blueprint;
A few things to check:
- Make sure the JSON string is valid and parses correctly
- Check that the property name is spelled correctly
- Print out the parsed object to verify it has the expected structure
- Parsing the JSON turns it into a Javascript object that you can then access properties from using dot notation or brackets. This allows you to work with the data rather than just a string.
0
Hi, do both dot notation myObj1.blueprint and bracket notation fail? Have you tried further debugging your json key/value pairs with a loop, for example something like
for var keyval in myObj1 {
if(myObj1.hasOwnProperty(keyval)) {
console.log('key-val pair', keyval, myObj1[keyval]);
}
}
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AWS 공식업데이트됨 2년 전
Thanks for the answer, however I am still not able to do what I want. I'm sending a JSON Object within the JSON that is sent to the Lambda Function from Make.com. The easiest way for me to send the data is by setting body type to Application/x-www-form-urlencoded format and then set fields to send the required data. I can receive the data in the Lambda function this way too but again how do I read it if I send the data this way.