Hi guys, I would like to seek help on my LED REST API. I have finished
constructed my basic REST API for my Raspberry PI. What I'm trying to do
now is allow my LED to light up whenever I key localhost:3000/7/1 and key
localhost:3000/7/0 to switch off. But my problem now is my REST API can't
works and hope you guys could help me out with it as soon as possible,
thanks in advance, guys.
*This is my led_rest_api.js:*
*var express = require('express');*
*var bodyParser = require('body-parser');*
*var gpio = require('pi-gpio');*
*var app = express();*
*app.use(bodyParser.json());*
*app.set('port', process.env.PORT || 3030);*
*app.post('/:pin/1', function(req, res)*
*{*
* var pin = req.params.pin;*
* gpio.open(pin, 'output', function(err){*
* if (pin === 7){*
* //Set pin 7 high (1)*
* gpio.write(7, 1, function() *
* { *
* gpio.close(7);*
* }*
* return gpio;*
* } if (pin === 11){*
* //Set pin 11 high (1)*
* gpio.write(11, 1, function() *
* { *
* gpio.close(11);*
* }*
* return gpio;*
* } if (pin === 16){*
* //Set pin 16 high (1)*
* gpio.write(16, 1, function() *
* { *
* gpio.close(16);*
* }*
* return gpio;*
* }*
* }*
*});*
*app.post('/:pin/0', function(req, res)*
*{*
* var pin = req.params.pin;*
* gpio.open(pin, 'output', function(err){*
* if (pin === 7){*
* //Set pin 7 low (0)*
* gpio.write(7, 0, function() *
* { *
* gpio.close(7);*
* }*
* return gpio;*
* } if (pin === 11){*
* //Set pin 11 low (0)*
* gpio.write(11, 0, function() *
* { *
* gpio.close(11);*
* }*
* return gpio;*
* } if (pin === 16){*
* //Set pin 16 low (0)*
* gpio.write(16, 0, function() *
* { *
* gpio.close(16);*
* }*
* return gpio;*
* }*
* }*
*});*
*var server = app.listen(app.get('port'), function() {*
* console.log('Listening on port %d', server.address().port);*
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