Created
August 13, 2021 15:25
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Ways of Writing Express/MongoDB routes (Callback, Async/Await, .then)
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/////////////////////////////////////// | |
// Writing the Index Route all three ways | |
// (Callback,.then, async/await) | |
/////////////////////////////////////// | |
// callback | |
app.get("/dogs", (req, res) => { | |
Dog.find({}, (err, data) => | |
err ? res.status(400).json(err) : res.json(data) | |
); | |
}); | |
// .then | |
app.get("/dogs", (req, res) => { | |
Dog.find({}) | |
.then((data) => res.json(data)) | |
.catch((err) => res.status(400).json(err)); | |
}); | |
// async/await | |
app.get("/dogs", async (req, res) => { | |
res.json(await Dog.find({}).catch((err) => res.status(400).json(err))); | |
}); | |
/////////////////////////////////////// | |
// Writing the Show Route all three ways | |
// (Callback,.then, async/await) | |
/////////////////////////////////////// | |
// callback | |
app.get("/dogs/:id", (req, res) => { | |
Dog.findById(req.params.id, (err, data) => | |
err ? res.status(400).json(err) : res.json(data) | |
); | |
}); | |
// .then | |
app.get("/dogs/:id", (req, res) => { | |
Dog.findById(req.params.id) | |
.then((data) => res.json(data)) | |
.catch((err) => res.status(400).json(err)); | |
}); | |
// async/await | |
app.get("/dogs/:id", async (req, res) => { | |
res.json( | |
await Dog.findById(req.params.id).catch((err) => res.status(400).json(err)) | |
); | |
}); | |
/////////////////////////////////////// | |
// Writing the Create Route all three ways | |
// (Callback,.then, async/await) | |
/////////////////////////////////////// | |
// callback | |
app.post("/dogs", (req, res) => { | |
Dog.create(req.body, (err, data) => | |
err ? res.status(400).json(err) : res.json(data) | |
); | |
}); | |
// .then | |
app.post("/dogs", (req, res) => { | |
Dog.create(req.body) | |
.then((data) => res.json(data)) | |
.catch((err) => res.status(400).json(err)); | |
}); | |
// async/await | |
app.post("/dogs", async (req, res) => { | |
res.json( | |
await Dog.create(req.body).catch((err) => res.status(400).json(err)) | |
); | |
}); | |
/////////////////////////////////////// | |
// Writing the Update Route all three ways | |
// (Callback,.then, async/await) | |
/////////////////////////////////////// | |
// callback | |
app.put("/dogs/:id", (req, res) => { | |
Dog.findByIdAndUpdate(req.params.id, req.body, {new: true}, (err, data) => | |
err ? res.status(400).json(err) : res.json(data) | |
); | |
}); | |
// .then | |
app.put("/dogs/:id", (req, res) => { | |
Dog.findByIdAndUpdate(req.params.id, req.body, {new: true}) | |
.then((data) => res.json(data)) | |
.catch((err) => res.status(400).json(err)); | |
}); | |
// async/await | |
app.put("/dogs/:id", async (req, res) => { | |
res.json( | |
await Dog.findByIdAndUpdate(req.params.id, req.body, {new: true}).catch((err) => res.status(400).json(err)) | |
); | |
}); | |
/////////////////////////////////////// | |
// Writing the Destroy Route all three ways | |
// (Callback,.then, async/await) | |
/////////////////////////////////////// | |
// callback | |
app.delete("/dogs/:id", (req, res) => { | |
Dog.findByIdAndRemove(req.params.id, (err, data) => | |
err ? res.status(400).json(err) : res.json(data) | |
); | |
}); | |
// .then | |
app.delete("/dogs/:id", (req, res) => { | |
Dog.findByIdAndRemove(req.params.id) | |
.then((data) => res.json(data)) | |
.catch((err) => res.status(400).json(err)); | |
}); | |
// async/await | |
app.delete("/dogs/:id", async (req, res) => { | |
res.json( | |
await Dog.findByIdAndRemove(req.params.id).catch((err) => res.status(400).json(err)) | |
); | |
}); |
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