Edit

invoker

envVarInstances()

Scans environment variables set in the current Lambda and automatically creates instances of invoker.

Example:

/**
 * Lambda Environment variables:
 * - LACONIA_INVOKER_CALL_CAPTURE_CARD_PAYMENT_LAMBDA: capture-card-payment-lambda-name
 */

const invoker = require("@laconia/invoker");
const laconia = require("@laconia/core");

const app = async (input, { captureCardPaymentLambda }) => {
  /* logic */
};

exports.handler = laconia(app).register(invoker.envVarInstances());

Environment variable convention

Key: LACONIA_INVOKER_[VARIABLE_NAME]

Value: Full AWS Lambda name to be invoked

requestResponse(payload)

Invokes other Lambda synchronously, with invocation type RequestResponse. Error will be thrown if the invoked Lambda returns an error.

• payload
  • The payload used for the Lambda invocation. Payload will be automatically JSON stringified

Example:

const app = async ({ fooInvoker }) => {
  await fooInvoker.requestResponse({ foo: "bar" });
};

fireAndForget(payload)

Invokes other Lambda asynchronously, with invocation type Event.

• payload
  • The payload used for the Lambda invocation. Payload will be automatically JSON stringified

Example:

const app = async ({ fooInvoker }) => {
  await fooInvoker.fireAndForget({ foo: "bar" });
};