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README.md

easygraphql-tracing
easygraphql-tracing

easygraphql-tracing is a node libreary used with express-graphql to get the time to resolve a field.

Requirements

  • GraphQL: "^14.0.0"
  • express-graphql: "^0.7.0"

Installation

To install the package on your project just run on the root of your project

$ npm install easygraphql-tracing --save-dev

How to use it

  • Import { tracing, fieldResolver } from easygraphql-tracing package
  • Create a new express middleware with tracing
  • On your graphqlHTTP function, set the option fieldResolver

Example:

const express = require('express');
const graphqlHTTP = require('express-graphql');
const { tracing, fieldResolver } = require('easygraphql-tracing');

const app = express();

app.use(tracing)

app.use('/graphql', graphqlHTTP({
  schema: MyGraphQLSchema,
  graphiql: true,
  fieldResolver
}));

app.listen(4000);

Result

It'll create a table on the console

┌─────────────┬─────────────┬─────────────┬─────────────────────────────────┬───────────────┬───────────────┐
│ Field name  │ Parent Type │ Return Type │ Path                            │ Duration (ns) │ Duration (ms) │
├─────────────┼─────────────┼─────────────┼─────────────────────────────────┼───────────────┼───────────────┤
│ uuid        │ Activity    │ ID!         │ getActivityByUuid - uuid        │ 3645          │ 0.003645      │
├─────────────┼─────────────┼─────────────┼─────────────────────────────────┼───────────────┼───────────────┤
│ name        │ Activity    │ String!     │ getActivityByUuid - name        │ 1768          │ 0.001768      │
├─────────────┼─────────────┼─────────────┼─────────────────────────────────┼───────────────┼───────────────┤
│ description │ Activity    │ String      │ getActivityByUuid - description │ 751           │ 0.000751      │
├─────────────┼─────────────┼─────────────┼─────────────────────────────────┼───────────────┼───────────────┤
│ rating      │ Activity    │ Float!      │ getActivityByUuid - rating      │ 913           │ 0.000913      │
└─────────────┴─────────────┴─────────────┴─────────────────────────────────┴───────────────┴───────────────┘

result

License

The MIT License

Copyright (c) 2019 EasyGraphQL

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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