aviddabbler / geomarvel_api

DC Trees Api

About

This Api was written to serve up a geojson file that has all of the DC Trees and its associated attributes touching on condition, built environment, and inspection notes.

This api has 2 different calls that can be made:

• /getAll
• /getByParams

/getAll

The /getAll command will return all of the features from the geojson file.

/getByParams

The /getAll command allows for the user to return a filtered set of trees based on the Condition of the trees. These conditions need to be passed in the header of the request as a string. If multiple tree conditions are needed they should be sent as a string separated by a comma is not space or case sensitive

Condition Choices:

• Exellent
• Good
• Fair
• Poor
• Dead

Axios Example

    var axios = require('axios');

    var config = {
        method: 'get',
        url: 'http://localhost:3000/getByParams?CONDITION=Excellent,Poor,Dead&WARD=1,2,3,4,5,6,7,8,9',
    };

    axios(config)
    .then(function (response) {
    console.log(JSON.stringify(response.data));
    })
    .catch(function (error) {
    console.log(error);
    });

Utilities

The utility functions that were turned on for this API are contained in api/functions/utility.js. There are three different functions contained in this file:

• newLatLon() - Makes a copy of the feature's xy coordinates out from the geometry key and into the properties key so that they can be used in the arcgis layers popup as it pulls in that key by default.
• orderByInspectionDate() - A default sort to pull back the oldest last inspection date (feature.properties.CONDITIODT).
• formatDates() - Formatting a list of dates from

All three of these utilities are run on each request and cannot be configured at this time

Deployment

This app was deployed on AWS ec2.

• create ec2
• install dependencies

Git

sudo yum install git

nodejs

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.34.0/install.sh | bash
. ~/.nvm/nvm.sh
nvm install node

clone repo

git clone https://github.com/AvidDabbler/geomarvel_api.git

npm install

cd geomarvel_api/api
npm install

crontab setup

crontab -e
@reboot cd geomarvel_api/api && npm start