aws-lambda-invoker
v2.2.0
Published
asynchronously invoke a lambda function
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lambda-invoker
Module that allows invoking a lambda function synchronously via the RequestResponse
invocationType or asynchronously via the Event
invocationType.
Usage
new Invoker(options)
Constructor for the class.
- options - { Object, optional } - an object to provide configuration options.
- logger - { Object, optional } - a valid logger. If no logger is provided, no debug information or errors will be logged.
const Invoker = require('lambda-invoker');
const logger = require('./path/to/your/logger');
// no logger
const invoker = new Invoker();
// logger as option
const invoker2 = new Invoker({ logger });
invoke(options, cb)
Method to synchronously invoke a lambda function.
- options - { Object, required } - invoke options for lambda
- functionName - { String, required } - the lambda function you wish to invoke.
- payload - { Object, required } - the payload you wish to send to the lambda function.
- clientContext - { Object, base64-encoded } - used to pass client-specific information to the lambda function being invoked via the context variable.
- cb - { function } - takes params err and result and is called on success or failure of invoking the lambda function. By default returns a promise that rejects on error or resolves with the result from invoking the lambda.
const Invoker = require('lambda-invoker');
const invoker = new Invoker();
// lambda handler
module.exports.handler = function(event, context, cb) {
const invokeOptions: {
functionName: 'testFunctionName',
payload: { data: 'blah' },
clientContext: { requestId: context.awsRequestId }
};
invoker.invoke(invokeOptions, cb);
};
invokeAsync(functionName, payload, clientContext, cb)
Method to asynchronously invoke a lambda function.
- options - { Object, required } - invoke options for lambda
- functionName - { String, required } - the lambda function you wish to invoke.
- payload - { Object, required } - the payload you wish to send to the lambda function.
- clientContext - { Object, base64-encoded } - used to pass client-specific information to the lambda function being invoked via the context variable.
- cb - { function } - takes params err and result and is called on success or failure of invoking the lambda function. By default returns a promise that rejects on error or resolves with the result from invoking the lambda.
const Invoker = require('lambda-invoker');
const invoker = new Invoker();
// lambda handler
module.exports.handler = function(event, context, cb) {
const invokeOptions: {
functionName: 'testFunctionName',
payload: { data: 'blah' },
clientContext: { requestId: context.awsRequestId }
};
invoker.invokeAsync(invokeOptions, cb);
};