npm:mali-error-mapper

README

Mali error mapper

Mali gRPC error mappers and middleware.

Middleware

This middleware maps all non GrpcError errors to a GrpcError formatted accordingly.

Status

Installation

Install the package via yarn:

❯ yarn add mali-error-mapper

or via npm:

❯ npm install mali-error-mapper --save

Usage

Using default mapping:

'use strict';

const errorMapperMiddleware = require('mali-error-mapper');
const app = new Mali();

app.use(errorMapperMiddleware());

Using custom mappers:

'use strict';

const errorMapperMiddleware = require('mali-error-mapper');
const app = new Mali();
const mapper = {
  map: e => {
    if (!(e instanceof MyError)) {
      return;
    }

    return {
      body: {
        code: 'foo',
        message: 'bar'
      },
      status: 999
    };
  };
};

app.use(errorMiddleware([mapper]));

License

MIT

Usage no npm install needed!