From AWS documentation: https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/Lambda.html#invoke-property
var params = {
FunctionName: 'STRING_VALUE', /* required */
ClientContext: 'STRING_VALUE',
InvocationType: Event | RequestResponse | DryRun,
LogType: None | Tail,
Payload: Buffer.from('...') || 'STRING_VALUE',
Qualifier: 'STRING_VALUE'
};
lambda.invoke(params, function(err, data) {
if (err) console.log(err, err.stack); // an error occurred
else console.log(data); // successful response
});
How do I specify http method, e.g. GET, POST, PUT, DELETE when calling lambda.invoke()?
lambda.invoke() invokes the Lambda function - HTTP methods are for invoking Amazon API Gateway routes, not a Lambda function.
A Lambda function just takes in an event.
Either call the Amazon API Gateway endpoint (which then invokes the Lambda), or just directly invoke the Lambda as above.