Mockup

Create a mock server for GET requests using a JSON file.

Run the program as follows: node mockup sample.json

Replace sample.json with the path to the file containing your schema.

Install and use as a package with npm install mockup-get-server

Use it in your program as:

const serve = require('mockup-get-server');

serve(data);

Here, data is an object array or a JSON string of one.

JSON schema

The JSON file, string or object passed must be an array of objects (corresponding to each API endpoint) with the relevant parameters described below.

Parameters

• path: gives the relative URI path for the API endpoint

• data: the JSON data to be returned by the endpoint (can be an array)

• count (default: 10): when returning an array, determines the number of objects returned

Placeholders

Placeholders are of the form {variableName} and can be replaced with URL parameter data. Placeholders placed in strings in the data field of the schema will be replaced with the data passed via URL parameters to that endpoint.

For example, if we have User-{id} in the schema and the value for id passed in the url is 42, then the corresponding response will be User-42.

Data

The API returns JSON data as objects or arrays depending on the data parameter provided in the input JSON file.

Output data

Single object

If the data key contains an object, that object is returned by its corresponding endpoint on every call.

Example

Schema:

{
    "path": "/user",
    "data": {
      "name": "Josin",
      "powerLevel": "9001"
    }
}

Response:

{
    "name": "Josin",
    "powerLevel": "9001"
}

Object array

If data is an array, then the JSON response will be an array populated with the objects in the above mentioned array.

The count parameter will determine the number of objects returned.

If count exceeds the number of objects in the input array, iterative duplication will be used to fill the object count.

Example

Schema:

{
    "path": "/games",
    "count": 3,
    "data": [
      {
        "name": "Mario"
      },
      {
        "name": "Pokemon"
      }
    ]
}

Response:

[
    {
        "name": "Mario"
    },
    {
        "name": "Pokemon"
    },
    {
        "name": "Mario"
    }
]

Input data

Placeholders in the data field in the JSON schema will be replaced with input provided by the user via URL parameters.

Example

Schema:

{
  "path": "/gamers/:num",
  "count": 4,
  "data": [
    {
      "name": "Casual Player",
      "games": ["Mario-{num}", "Poke{num}mon"]
    },
    {
      "name": "NoobMaster {num}",
      "games": [
        {
          "name": "Pukemon",
          "timesPlayed": 6
        },
        {
          "name": "Barfio{num}",
          "timesPlayed": 11
        }
      ]
    }
  ]
}

Query:

http://localhost:9000/gamers/69

Response:

[
    {
        "name": "Casual Player",
        "games": [
            "Mario-69",
            "Poke69mon"
        ]
    },
    {
        "name": "NoobMaster 69",
        "games": [
            {
                "name": "Pukemon",
                "timesPlayed": 6
            },
            {
                "name": "Barfio69",
                "timesPlayed": 11
            }
        ]
    },
    {
        "name": "Casual Player",
        "games": [
            "Mario-69",
            "Poke69mon"
        ]
    },
    {
        "name": "NoobMaster 69",
        "games": [
            {
                "name": "Pukemon",
                "timesPlayed": 6
            },
            {
                "name": "Barfio69",
                "timesPlayed": 11
            }
        ]
    }
]