66 lines
2.2 KiB
JavaScript
66 lines
2.2 KiB
JavaScript
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/**
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*
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* @param {Request} request The incoming request
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* @param {Response} response The response to send back
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* @param {Express} app Express app instance
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* @param {Pool} pool MariaDB pool instance
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*/
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function handleIncoming(request, response, app, pool)
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{
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let query = 'SELECT * FROM Exercise WHERE ExerciseID = ?';
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let parameters = [];
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if (!request.hasOwnProperty('uid') || typeof request.uid !== 'number')
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{
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query = 'SELECT * FROM Exercise';
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} else parameters.push(request.uid);
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// Acquire database connection
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pool.getConnection()
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.then(conn => {
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conn.query(query, parameters)
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.then(rows => {
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if (rows.length === 0)
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{
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response
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.status(404)
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.send(JSON.stringify({error: 'Exercise not found'}));
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}
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else
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{
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// Send back the data in the right format
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let firstRow = rows[0];
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response
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.status(200)
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.send(JSON.stringify({
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name: firstRow.Name,
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description: firstRow.Description,
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muscleGroup: firstRow.MuscleGroup,
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imageUrl: firstRow.ImageURL,
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videoUrl: firstRow.VideoURL
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}));
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}
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})
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.catch(_ => {
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response
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.status(500)
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.send(JSON.stringify({error: 'Internal server error (Querying)'}));
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})
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.finally(() => {
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conn.end();
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});
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})
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.catch(_ => {
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response
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.status(500)
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.send(JSON.stringify({error: 'Internal server error (Connection)'}));
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});
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}
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// Export the function that registers the incoming request handlers
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module.exports = function(app, pool) {
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app.get('/', (req, res) => handleIncoming(req, res, app, pool));
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}; |