Discover AI-native insights at Testμ Conference‘25

How to use deliverError method in Puppeteer

Best JavaScript code snippet using puppeteer

section.js

...31				filters32			}33			return res.send(result)34		} catch (err) {35			return deliverError(res, 500, 'somethingWentWrong', err)36		}37	},38	async getOne(req, res) {39		try {40			const section = await Section.findById(req.params.id)41			if (!section)42				return deliverError(res, 404, 'sectionNotFound')43			return res.send(section)44		} catch (err) {45			return deliverError(res, 500, 'somethingWentWrong', err)46		}47	},48	// Add Client Deskaf49	async add(req, res) {50		const { error } = validateSection(req.body) 51		if (error) return deliverError(res, 400, 'validationError', error.details[0].message)52		const repeated = await Section.find({ name: req.body.name })53	    console.log(repeated, { name: req.body.name })54	    if (repeated && repeated.length)55	    	return deliverError(res, 400, 'sectionExists')56		const section = new Section(res.body)57		await section.save()58		return res.send(section)59	},60	// Update deskaf61	async update(req, res) {62		const { error } = validate(req.body, true) 63		if (error) return res.status(400).send(error.details[0].message)64		const deskaf = await Deskaf.update(65			{ },66			{$set: req.body},67			{ multi: true , new : true }68		)69		res.send(appSpecs[0])70	},71	/// Add Section SectionImage72	async addSectionImage(req, res) {73		// const { error } = validateId(req.params)74		// if (error) return deliverError(res, 400, 'validationError', error.details[0].message)75		const section = await Section.findById(req.params.id)76		if (!section) {77			return deliverError(res, 400, 'sectionNotFound')78		}79		// Remove The Old SectionImage80		if(section.image) {81			fs.unlink(getFilePath(section.image), err => {82				if (err) {83					return deliverError(res, 500, 'somethingWentWrong')84				}85			})86		}87		const filename = (req, file, cb) => {88			cb(null, generateFileName(req, file ,section._id))89		}90		uploadSectionImage({filename}).single('file')(req, res, async error => {91			if (error) {92				return deliverError(res, 500, 'somethingWentWrong')93			}94			if (!req.file) {95				return deliverError(res, 500, 'noFileSelected')96			}97			const image = generateFileName(req, req.file,section._id)98			const updated = await Section.findOneAndUpdate(99				{_id: req.params.id},100				{101					$set: { image }102				},103				{104					new: true105				}106			)107			return res.send(updated)108		})109	},110	// Remove SectionImage111	async removeSectionImage(req, res) {112		// const { error } = validateId(req.params)113		// if (error) return res.status(400).send(error.details[0].message)114		const section = await Section.findById(req.params.id)115		if (!section) {116			return deliverError(res, 404, 'sectionNotFound')117		}118		// Remove The Old SectionImage119		if(section.image) {120			fs.unlink(getFilePath(section.image), err => {121				if (err) {122					return deliverError(res, 500, 'somethingWentWrong')123				}124			})125		} else {126			return deliverError(res, 500, 'noSectionImageFound')127		}128		const updated = await Section.findOneAndUpdate(129			req.params.id,130			{131				$set: { image: null }132			},133			{134				new: true135			}136		)137		return res.send(updated)138	},139	// Get Section SectionImage140	async getSectionImage(req, res) {141		// const { error } = validateId(req.params)142		// if (error) return res.status(400).send(error.details[0].message)143		const section = await Section.findById(req.params.id)144		if (!section) {145			return deliverError(res, 404, 'sectionNotFound')146		}147		if(section.image) {148			return res.set({149				'Content-Type': mime.lookup(path.extname(section.image)),	150				'Content-Disposition': `inline; filename="${section.name}${path.extname(section.image)}"`151			}).sendFile(getFilePath(section.image))152		} 153		return deliverError(res, 404, 'noSectionImageFound')154	}...

vehicle.js

Source: vehicle.js

...24				vehicles25			}26			return res.send(result)27		} catch (err) {28			return deliverError(res, 500, 'somethingWentWrong', err)29		}30	},31	async getOne(req, res) {32		try {33			const vehicle = await Vehicle.findById(req.params.id)34			if (!vehicle)35				return deliverError(res, 404, 'vehicleNotFound')36			return res.send(vehicle)37		} catch (err) {38			return deliverError(res, 500, 'somethingWentWrong', err)39		}40	},41	// Add Client Deskaf42	async add(req, res) {43		const { error } = validateVehicle(req.body) 44		if (error) return deliverError(res, 400, 'validationError', error.details[0].message)45		const repeated = await Vehicle.find({ name: req.body.name })46	    console.log(repeated, { name: req.body.name })47	    if (repeated && repeated.length)48	    	return deliverError(res, 400, 'vehicleExists')49		const vehicle = new Vehicle(res.body)50		await vehicle.save()51		return res.send(vehicle)52	},53	// Update deskaf54	async update(req, res) {55		const { error } = validate(req.body, true) 56		if (error) return res.status(400).send(error.details[0].message)57		const deskaf = await Deskaf.update(58			{ },59			{$set: req.body},60			{ multi: true , new : true }61		)62		res.send(appSpecs[0])63	},64	/// Add Vehicle VehicleImage65	async addVehicleImage(req, res) {66		// const { error } = validateId(req.params)67		// if (error) return deliverError(res, 400, 'validationError', error.details[0].message)68		const vehicle = await Vehicle.findById(req.params.id)69		if (!vehicle) {70			return deliverError(res, 400, 'vehicleNotFound')71		}72		// Remove The Old VehicleImage73		if(vehicle.image) {74			fs.unlink(getFilePath(vehicle.image), err => {75				if (err) {76					return deliverError(res, 500, 'somethingWentWrong')77				}78			})79		}80		const filename = (req, file, cb) => {81			cb(null, generateFileName(req, file ,vehicle._id))82		}83		uploadVehicleImage({filename}).single('file')(req, res, async error => {84			if (error) {85				return deliverError(res, 500, 'somethingWentWrong')86			}87			if (!req.file) {88				return deliverError(res, 500, 'noFileSelected')89			}90			const image = generateFileName(req, req.file,vehicle._id)91			const updated = await Vehicle.findOneAndUpdate(92				{_id: req.params.id},93				{94					$set: { image }95				},96				{97					new: true98				}99			)100			return res.send(updated)101		})102	},103	// Remove VehicleImage104	async removeVehicleImage(req, res) {105		// const { error } = validateId(req.params)106		// if (error) return res.status(400).send(error.details[0].message)107		const vehicle = await Vehicle.findById(req.params.id)108		if (!vehicle) {109			return deliverError(res, 404, 'vehicleNotFound')110		}111		// Remove The Old VehicleImage112		if(vehicle.image) {113			fs.unlink(getFilePath(vehicle.image), err => {114				if (err) {115					return deliverError(res, 500, 'somethingWentWrong')116				}117			})118		} else {119			return deliverError(res, 500, 'noVehicleImageFound')120		}121		const updated = await Vehicle.findOneAndUpdate(122			req.params.id,123			{124				$set: { image: null }125			},126			{127				new: true128			}129		)130		return res.send(updated)131	},132	// Get Vehicle VehicleImage133	async getVehicleImage(req, res) {134		// const { error } = validateId(req.params)135		// if (error) return res.status(400).send(error.details[0].message)136		const vehicle = await Vehicle.findById(req.params.id)137		if (!vehicle) {138			return deliverError(res, 404, 'vehicleNotFound')139		}140		if(vehicle.image) {141			return res.set({142				'Content-Type': mime.lookup(path.extname(vehicle.image)),	143				'Content-Disposition': `inline; filename="${vehicle.name}${path.extname(vehicle.image)}"`144			}).sendFile(getFilePath(vehicle.image))145		} 146		return deliverError(res, 404, 'noVehicleImageFound')147	}...

organizations.js

Source: organizations.js

...8  // Gets all owners of organization with :id9  router.get("/:id/owners", (req, res) => {10    db.query(orgQueries.allOwners, [req.params.id])11      .then((owners) => res.json(owners.rows))12      .catch((err) => res.status(500).send(deliverError(err.message)));13  });14  // Gets the config file for the organizations application15  router.get("/:id/application", (req, res) => {16    db.query(orgQueries.appConfig, [req.params.id])17      .then((config) => res.json(config.rows[0].application_config))18      .catch((err) => res.status(500).send(deliverError(err.message)));19  });20  // Gets all the tasks issued by an organization21  router.get("/:id/tasks", (req, res) => {22    db.query(orgQueries.allTasks, [req.params.id])23      .then((tasks) => res.json(tasks.rows))24      .catch((err) => res.status(500).send(deliverError(err.message)));25  });26  //Gets all pending approved users for an organization27  router.get("/:id/users/pending", (req, res) => {28    db.query(orgQueries.allPendingVolunteers, [req.params.id])29      .then((volunteers) => res.json(volunteers.rows))30      .catch((err) => {31        console.error(err);32        res.status(500).send(deliverError(err.message));33      });34  });35  // Gets all approved users for an organization36  router.get("/:id/users", (req, res) => {37    Promise.all([38      db.query(orgQueries.allVolunteers, [req.params.id]),39      db.query(orgQueries.allPendingVolunteers, [req.params.id]),40    ])41      .then((all) => {42        res43          .status(200)44          .json({ info: [...all[0].rows], pending: all[1].rows.length });45      })46      .catch((err) => console.error(err));47  });48  // Gets a specific organization49  router.get("/:id", (req, res) => {50    Promise.all([51      db.query(orgQueries.specificOrg, [req.params.id]),52      db.query(orgQueries.allPendingVolunteers, [req.params.id]),53    ])54      .then((all) => {55        res56          .status(200)57          .json({ info: [...all[0].rows], pending: all[1].rows.length });58      })59      .catch((err) => console.error(err));60  });61  // Gets all organizations62  router.get("/", (req, res) => {63    db.query(orgQueries.allOrgs)64      .then((orgs) => res.json(orgs.rows))65      .catch((err) => res.status(500).send(deliverError(err.message)));66  });67  // PUT ROUTES ---------------------------------------------68  // Adds an organization to database69  router.put("/", (req, res) => {70    const queryParams = [71      req.body.name,72      req.body.description,73      req.body.primary_email,74      req.body.primary_phone,75      req.body.location,76      req.body.image_url,77      req.body.website,78      JSON.stringify({}),79    ];80    //Second query automatically adds the creator as an owner of the organization81    db.query(orgQueries.addOrg, queryParams)82      .then((id) => {83        return db.query(ownerQueries.addOwner, [84          req.body.userID,85          id.rows[0].id,86        ]);87      })88      .then((orgID) => {89        console.log("added owner successfully");90        res.status(201).json(orgID.rows[0]);91      })92      .catch((err) => console.error(err));93  });94  // PATCH ROUTES ---------------------------------------------95  //Edits details for an organizations application96  router.patch("/:id/application", (req, res) => {97    const newConfig = JSON.stringify(req.body.newConfig);98    db.query(orgQueries.editAppConfig, [newConfig, req.params.id])99      .then(() => res.status(201).end())100      .catch((err) => console.error(err));101  });102  // Edits an organizations details103  router.patch("/:id", (req, res) => {104    //TODO105  });106  // DELETE ROUTES ---------------------------------------------107  // Deletes an organization108  router.delete("/:id", (req, res) => {109    db.query(orgQueries.deleteOrg, [req.params.id])110      .then(() => res.status(200))111      .catch((err) => res.status(500).send(deliverError(err.message)));112  });113  return router;...

brand.js

Source: brand.js

...24				brands25			}26			return res.send(result)27		} catch (err) {28			return deliverError(res, 500, 'somethingWentWrong', err)29		}30	},31	async getOne(req, res) {32		try {33			const brand = await Brand.findById(req.params.id)34			if (!brand)35				return deliverError(res, 404, 'brandNotFound')36			return res.send(brand)37		} catch (err) {38			return deliverError(res, 500, 'somethingWentWrong', err)39		}40	},41	// Add Client Deskaf42	async add(req, res) {43		const { error } = validateBrand(req.body) 44		if (error) return deliverError(res, 400, 'validationError', error.details[0].message)45		const repeated = await Brand.find({ name: req.body.name })46	    console.log(repeated, { name: req.body.name })47	    if (repeated && repeated.length)48	    	return deliverError(res, 400, 'brandExists')49		const brand = new Brand(res.body)50		await brand.save()51		return res.send(brand)52	},53	// Update deskaf54	async update(req, res) {55		const { error } = validate(req.body, true) 56		if (error) return res.status(400).send(error.details[0].message)57		const deskaf = await Deskaf.update(58			{ },59			{$set: req.body},60			{ multi: true , new : true }61		)62		res.send(appSpecs[0])63	},64	/// Add Brand BrandImage65	async addBrandImage(req, res) {66		// const { error } = validateId(req.params)67		// if (error) return deliverError(res, 400, 'validationError', error.details[0].message)68		const brand = await Brand.findById(req.params.id)69		if (!brand) {70			return deliverError(res, 400, 'brandNotFound')71		}72		// Remove The Old BrandImage73		if(brand.image) {74			fs.unlink(getFilePath(brand.image), err => {75				if (err) {76					return deliverError(res, 500, 'somethingWentWrong')77				}78			})79		}80		const filename = (req, file, cb) => {81			cb(null, generateFileName(req, file ,brand._id))82		}83		uploadBrandImage({filename}).single('file')(req, res, async error => {84			if (error) {85				return deliverError(res, 500, 'somethingWentWrong')86			}87			if (!req.file) {88				return deliverError(res, 500, 'noFileSelected')89			}90			const image = generateFileName(req, req.file,brand._id)91			const updated = await Brand.findOneAndUpdate(92				{_id: req.params.id},93				{94					$set: { image }95				},96				{97					new: true98				}99			)100			return res.send(updated)101		})102	},103	// Remove BrandImage104	async removeBrandImage(req, res) {105		// const { error } = validateId(req.params)106		// if (error) return res.status(400).send(error.details[0].message)107		const brand = await Brand.findById(req.params.id)108		if (!brand) {109			return deliverError(res, 404, 'brandNotFound')110		}111		// Remove The Old BrandImage112		if(brand.image) {113			fs.unlink(getFilePath(brand.image), err => {114				if (err) {115					return deliverError(res, 500, 'somethingWentWrong')116				}117			})118		} else {119			return deliverError(res, 500, 'noBrandImageFound')120		}121		const updated = await Brand.findOneAndUpdate(122			req.params.id,123			{124				$set: { image: null }125			},126			{127				new: true128			}129		)130		return res.send(updated)131	},132	// Get Brand BrandImage133	async getBrandImage(req, res) {134		// const { error } = validateId(req.params)135		// if (error) return res.status(400).send(error.details[0].message)136		const brand = await Brand.findById(req.params.id)137		if (!brand) {138			return deliverError(res, 404, 'brandNotFound')139		}140		if(brand.image) {141			return res.set({142				'Content-Type': mime.lookup(path.extname(brand.image)),	143				'Content-Disposition': `inline; filename="${brand.name}${path.extname(brand.image)}"`144			}).sendFile(getFilePath(brand.image))145		} 146		return deliverError(res, 404, 'noBrandImageFound')147	}...

tasks.js

Source: tasks.js

...16  // Gets a count of all users signed up for a specific task17  router.get("/:id/signups/count", (req, res) => {18    db.query(taskQueries.countSignups, [req.params.id])19      .then((count) => res.json(count.rows[0].count))20      .catch((err) => res.status(500).send(deliverError(err.message)));21  });22  // Returns a count of the current signups for each task issued by orgid23  router.get("/:orgid/signups/all", (req, res) => {24    db.query(taskQueries.countAll, [req.params.orgid])25      .then((count) => {26        res.status(200).json(count.rows);27      })28      .catch((err) => console.error(err));29  });30  // Returns a count of the current signups for each task a user has available31  router.get("/:userid/signups/user", (req, res) => {32    db.query(taskQueries.countAllUser, [req.params.userid])33      .then((count) => {34        res.status(200).json(count.rows);35      })36      .catch((err) => console.error(err));37  });38  // Gets all the users signed up for a specific task39  router.get("/:id/signups", (req, res) => {40    db.query(taskQueries.allSignups, [req.params.id])41      .then((signups) => res.json(signups.rows))42      .catch((err) => res.status(500).send(deliverError(err.message)));43  });44  // Gets a specific task w/ signups45  router.get("/:id", (req, res) => {46    Promise.all([47      db.query(taskQueries.specificTask, [req.params.id]),48      db.query(taskQueries.allSignups, [req.params.id]),49    ])50      .then(([taskQueryResult, signupsQueryResult]) => {51        const task = taskQueryResult.rows[0];52        task.signups = signupsQueryResult.rows;53        res.json(task);54      })55      .catch((err) => {56        console.error(err);57        res.status(500).send(deliverError(err.message));58      });59  });60  // Gets all tasks61  router.get("/", (req, res) => {62    db.query(taskQueries.allTasks)63      .then((tasks) => res.json(tasks.rows))64      .catch((err) => res.status(500).send(deliverError(err.message)));65  });66  // PUT ROUTES ---------------------------------------------67  // Adds a new task68  //Automatically sends out notifications after successfully adding to db69  router.put("/", (req, res) => {70    const queryParams = [71      req.body.name,72      req.body.description,73      req.body.start_date,74      req.body.end_date,75      req.body.spots,76      req.body.image_url,77      req.body.organization_id,78      req.body.location,...

signups.js

Source: signups.js

...11        res.json(tasks.rows);12      })13      .catch((err) => {14        console.error(err);15        res.status(500).send(deliverError(err.message));16      });17  });18  router.get("/:userid/completed", (req, res) => {19    db.query(signupQueries.completed, [req.params.userid])20      .then((tasks) => res.status(200).json(tasks.rows))21      .catch((err) => console.error(err));22  });23  router.get("/:userid/history", (req, res) => {24    db.query(signupQueries.history, [req.params.userid])25      .then((count) => res.status(200).json(count.rows[0]))26      .catch((err) => console.error(err));27  });28  // Gets all tasks a user is signed up for29  router.get("/:userid", (req, res) => {30    db.query(signupQueries.tasks, [req.params.userid])31      .then((tasks) => {32        res.json(tasks.rows);33      })34      .catch((err) => {35        console.error(err);36        res.status(500).send(deliverError(err.message));37      });38  });39  // PUT ROUTES ---------------------------------------------40  // Creates a signup for a task with a certain user41  router.put("/:taskid/:userid", (req, res) => {42    db.query(signupQueries.signUp, [req.params.userid, req.params.taskid]).then(43      () => {44        db.query(taskQueries.allSignups, [req.params.taskid])45          .then((signups) => {46            const wsResponse = { type: "add", signup: signups.rows };47            updateSignups(wsResponse);48            res.status(201).json(signups.rows);49          })50          .catch((err) => console.error(err));51      }52    );53  });54  // PATCH ROUTES ---------------------------------------------55  // DELETE ROUTES ---------------------------------------------56  // Cancels a signup57  router.delete("/:taskid/:userid", (req, res) => {58    db.query(signupQueries.cancel, [req.params.userid, req.params.taskid])59      .then(() => {60        const wsResponse = { type: "delete", signup: [] };61        updateSignups(wsResponse);62        res.status(200).end();63      })64      .catch((err) => res.status(500).send(deliverError(err.message)));65  });66  return router;...

users.js

Source: users.js

...23  //returns a specific user24  router.get("/:id", async (req, res) => {25    db.query(userQueries.specificUser, [req.params.id])26      .then((user) => res.json(user.rows[0]))27      .catch((err) => res.status(500).send(deliverError(err.message)));28  });29  // returns all users30  router.get("/", (req, res) => {31    db.query(userQueries.allUsers, [req.params.id])32      .then((users) => res.json(users.rows))33      .catch((err) => res.status(500).send(deliverError(err.message)));34  });35  // PUT ROUTES ---------------------------------------------36  // adds a user to the database (registration route)37  router.put("/", (req, res) => {38    //sets the query params using info from form39    const queryParams = [40      req.body.first_name,41      req.body.last_name,42      req.body.email,43      req.body.profile_image_url,44    ];45    db.query(userQueries.addUser, queryParams)46      .then(() => res.status(201))47      .catch((err) => res.status(500).send(deliverError(err.message)));48  });49  // PATCH ROUTES ---------------------------------------------50  // edits a user's information51  router.patch("/:id", (req, res) => {52    //TODO53  });54  // DELETE ROUTES ---------------------------------------------55  // deletes a user56  router.delete("/:id", (req, res) => {57    db.query(userQueries.deleteUser, [req.params.id])58      .then(() => res.status(200))59      .catch((err) => res.status(500).send(deliverError(err.message)));60  });61  return router;...

auth.js

Source: auth.js

...4const deliverError = require('../resources/errors')5module.exports = function(roles = null) {6	return function (req, res, next) {7		const token = req.header('Authorization')8		if (!token) return deliverError(res, 401, 'noAccessToken')9		try {10			const decoded = jwt.verify(token, config.jwtPrivateKey)11			req.user = decoded12			if(!hasRole(roles, decoded)) {13				return deliverError(res, 401, 'unauthorizedAccess')14			} else {15				next()16			}17		}18		catch (ex) {19			return deliverError(res, 401, 'invalidToken')20		}21	}...

Using AI Code Generation

1const puppeteer = require('puppeteer');2(async () => {3  const browser = await puppeteer.launch({headless: false});4  const page = await browser.newPage();5  await page.screenshot({path: 'google.png'});6  await browser.close();7})();8const puppeteer = require('puppeteer');9(async () => {10  const browser = await puppeteer.launch({headless: false});11  const page = await browser.newPage();12  await page.screenshot({path: 'google.png'});13  await browser.close();14})();15const puppeteer = require('puppeteer');16(async () => {17  const browser = await puppeteer.launch({headless: false});18  const page = await browser.newPage();19  await page.screenshot({path: 'google.png'});20  await browser.close();21})();22const puppeteer = require('puppeteer');23(async () => {24  const browser = await puppeteer.launch({headless: false});25  const page = await browser.newPage();26  await page.screenshot({path: 'google.png'});27  await browser.close();28})();29const puppeteer = require('puppeteer');30(async () => {31  const browser = await puppeteer.launch({headless: false});32  const page = await browser.newPage();33  await page.screenshot({path: 'google.png'});34  await browser.close();35})();36const puppeteer = require('puppeteer');37(async () => {38  const browser = await puppeteer.launch({headless: false});39  const page = await browser.newPage();40  await page.screenshot({path: 'google.png'});41  await browser.close();42})();

Using AI Code Generation

1const puppeteer = require('puppeteer');2(async () => {3const browser = await puppeteer.launch({headless: false});4const page = await browser.newPage();5await page.screenshot({path: 'screenshot.png'});6await page.emulateNetworkConditions({7});8await page.screenshot({path: 'screenshot2.png'});9await browser.close();10})();

Using AI Code Generation

1const puppeteer = require('puppeteer');2const path = require('path');3const fs = require('fs');4(async () => {5  const browser = await puppeteer.launch({headless: false});6  const page = await browser.newPage();7  page.on('error', err => console.log(err));8  page.on('pageerror', pageerr => console.log(pageerr));9  await page.screenshot({path: 'google.png'});10  await browser.close();11})();12const puppeteer = require('puppeteer');13const path = require('path');14const fs = require('fs');15(async () => {16  const browser = await puppeteer.launch({headless: false});17  const page = await browser.newPage();18  await page.screenshot({path: 'google.png'});19  await browser.close();20})();21const puppeteer = require('puppeteer');22const path = require('path');23const fs = require('fs');24(async () => {25  const browser = await puppeteer.launch({headless: false});26  const page = await browser.newPage();27  await page.screenshot({path: 'google.png'});28  await browser.close();29})();30const puppeteer = require('puppeteer');31const path = require('path');32const fs = require('fs');33(async () => {34  const browser = await puppeteer.launch({headless: false});35  const page = await browser.newPage();36  await page.screenshot({path: 'google.png'});37  await browser.close();38})();39const puppeteer = require('puppeteer');40const path = require('path');41const fs = require('fs');42(async () => {43  const browser = await puppeteer.launch({headless: false});44  const page = await browser.newPage();45  await page.screenshot({path: 'google.png'});46  await browser.close();47})();

Using AI Code Generation

1const puppeteer = require('puppeteer');2const path = require('path');3(async () => {4  const browser = await puppeteer.launch();5  const page = await browser.newPage();6  await page.waitFor(2000);7  await page.screenshot({path: path.join(__dirname, 'example.png')});8  await browser.close();9})();10const puppeteer = require('puppeteer');11const path = require('path');12(async () => {13  const browser = await puppeteer.launch();14  const page = await browser.newPage();15  await page.waitFor(2000);16  await page.screenshot({path: path.join(__dirname, 'example.png')});17  await browser.close();18})();19const puppeteer = require('puppeteer');20const path = require('path');21(async () => {22  const browser = await puppeteer.launch();23  const page = await browser.newPage();24  await page.waitFor(2000);25  await page.screenshot({path: path.join(__dirname, 'example.png')});26  await browser.close();27})();28const puppeteer = require('puppeteer');29const path = require('path');30(async () => {31  const browser = await puppeteer.launch();32  const page = await browser.newPage();33  await page.waitFor(2000);34  await page.screenshot({path: path.join(__dirname, 'example.png')});35  await browser.close();36})();37const puppeteer = require('puppeteer');38const path = require('path');39(async () => {40  const browser = await puppeteer.launch();41  const page = await browser.newPage();42  await page.waitFor(2000);43  await page.screenshot({path: path.join(__dirname, 'example.png')});44  await browser.close();45})();

Using AI Code Generation

1const { PuppeteerCrawler } = require('apify');2const puppeteer = require('puppeteer');3const proxyConfiguration = await Apify.createProxyConfiguration({4});5const crawler = new PuppeteerCrawler({6    launchPuppeteerOptions: {

Using AI Code Generation

1const puppeteer = require('puppeteer');2const fs = require('fs');3const path = require('path');4(async () => {5  const browser = await puppeteer.launch();6  const page = await browser.newPage();7  await page.screenshot({path: 'google.png'});8  await browser.close();9})();10const puppeteer = require('puppeteer');11const fs = require('fs');12const path = require('path');13(async () => {14  const browser = await puppeteer.launch();15  const page = await browser.newPage();16  await page.screenshot({path: 'google.png'});17  await browser.close();18})();19const puppeteer = require('puppeteer');20const fs = require('fs');21const path = require('path');22(async () => {23  const browser = await puppeteer.launch();24  const page = await browser.newPage();25  await page.screenshot({path: 'google.png'});26  await browser.close();27})();28const puppeteer = require('puppeteer');29const fs = require('fs');30const path = require('path');31(async () => {32  const browser = await puppeteer.launch();33  const page = await browser.newPage();34  await page.screenshot({path: 'google.png'});35  await browser.close();36})();37const puppeteer = require('puppeteer');38const fs = require('fs');39const path = require('path');40(async () => {41  const browser = await puppeteer.launch();42  const page = await browser.newPage();43  await page.screenshot({path: 'google.png'});44  await browser.close();45})();

Using AI Code Generation

1const { deliverError } = require('puppeteer');2const error = new Error('This is a test error');3deliverError(error);4const { deliverError } = require('playwright');5const error = new Error('This is a test error');6deliverError(error);7const { deliverError } = require('cypress');8const error = new Error('This is a test error');9deliverError(error);10const { deliverError } = require('testcafe');11const error = new Error('This is a test error');12deliverError(error);13const { deliverError } = require('webdriverio');14const error = new Error('This is a test error');15deliverError(error);16const { deliverError } = require('selenium-webdriver');17const error = new Error('This is a test error');18deliverError(error);19const { deliverError } = require('protractor');20const error = new Error('This is a test error');21deliverError(error);22const { deliverError } = require('nightwatch');23const error = new Error('This is a test error');24deliverError(error);25const { deliverError } = require('appium');26const error = new Error('This is a test error');27deliverError(error);28const { deliverError } = require('wdio');29const error = new Error('This is a test error');30deliverError(error);31const { deliverError } = require('wd');32const error = new Error('This is a test error');33deliverError(error);34const { deliverError } = require('wdio-allure-reporter');35const error = new Error('This is a test error');36deliverError(error);37const { deliverError } = require('wdio-screenshot');38const error = new Error('This is a test error');39deliverError(error);

Using AI Code Generation

1const { deliverError } = require( 'puppeteer' );2const error = new Error( 'test error' );3deliverError( error );4const { deliverError } = require( 'puppeteer' );5const error = new Error( 'test error' );6deliverError( error );7const { deliverError } = require( 'puppeteer' );8const error = new Error( 'test error' );9deliverError( error );10const { deliverError } = require( 'puppeteer' );11const error = new Error( 'test error' );12deliverError( error );13const { deliverError } = require( 'puppeteer' );14const error = new Error( 'test error' );15deliverError( error );16const { deliverError } = require( 'puppeteer' );17const error = new Error( 'test error' );18deliverError( error );19const { deliverError } = require( 'puppeteer' );20const error = new Error( 'test error' );21deliverError( error );22const { deliverError } = require( 'puppeteer' );23const error = new Error( 'test error' );24deliverError( error );25const { deliverError } = require( 'puppeteer' );26const error = new Error( 'test error' );27deliverError( error );28const { deliverError } = require( 'puppeteer' );29const error = new Error( 'test error' );30deliverError( error );31const { deliverError } = require( 'puppeteer' );32const error = new Error( 'test error' );33deliverError( error );34const { deliverError } = require( 'puppeteer' );

StackOverFlow community discussions

Questions

Discussion

Puppeteer & browserWSEndpoint: can't upload files dynamically

Puppeteer page.goTo() never finishes

Puppeteer: Wait until elementHandle is no longer attached to the DOM

How does an ElementHandle differ from a DOM Element?

Is it possible to simulate pressing 'Down' arrow?

Checking an element is disabled using Puppeteer

Connecting Browsers in Puppeteer

How can I check that an element is visible with Puppeteer and pure JavaScript?

How to modify the first pageNumber or execute JS in header or footer template with Chrome DevTools Protocol's printToPDF

How to inject local script with require statements into Puppeteer page

How far does it run before you hit a problem? Does it get to the first '//some stuff' bit? Ive had some trouble in the past using 'networkidle2' and as of 1.0.0 it looks as though its been removed

https://stackoverflow.com/questions/48268069/puppeteer-browserwsendpoint-cant-upload-files-dynamically

You're not using Puppeteer the way you should, that's why it feels buggy, but it's mostly because you don't know what's going on in the script.

Let's have a look.

await page.goto('http://www.google.com');

this really means this:

await page.goto('http://www.google.com', { waitUntil: 'load' });

So you're going to a page and waiting till the load event fires. That means that when you reach behind this line, there's no other navigation to wait for. Therefore this line:

await page.waitForNavigation();

will wait forever. That's what you describe as "it hangs".

So since the method page.goTo() already offers ways to specify when the navigation succeeded (currently they are: load, domcontentloaded, networkidle0, networkidle2), you don't really need to use any other method in combination with page.goTo().

Another situation is when you click a button and expect something to happen, like a navigation or a selector to appear in page. Since the method page.click() doesn't offer the same options as page.goTo(), you often need to use another method in combination, like so:

await Promise.all([
    page.waitForNavigation(),
    page.click(selector)
]);

or to wait for navigation and some selector:

await Promise.all([
    page.waitForNavigation({ waitUntil: 'networkidle0' }),
    page.waitForSelector(selector),
    fbButton.click()
]);

If you stick to these patterns, I don't think you'll feel Puppeteer is buggy. It's just it's a low level tool, so you need to write more code than in some other framework like WebdriverIO and the like.

https://stackoverflow.com/questions/66287035/puppeteer-page-goto-never-finishes

Using `page.waitForXPath`

The easiest way would be to use page.waitForXPath with the option hidden set to true:

await page.waitForXPath('XPATH', { hidden: true });

This will wait until the element is not present in the DOM anymore or hidden (via CSS).

Alternative: `page.waitForFunction`

Alternatively, you can use page.waitForFunction to wait until a function that you provide returns true. By using document.evaluate to evaluate an XPath expression you can then wait until your condition resoles to true.

Using an existing variable

As you already have the element in a variable, you can use page.waitForFunction and pass the element as args:

await page.waitForFunction(element => element.parentNode === null, {}, spinnerElement);

You might need to change the checking function depending on how the node is removed.

https://stackoverflow.com/questions/61661976/puppeteer-wait-until-elementhandle-is-no-longer-attached-to-the-dom

With ElementHandle can you still access to properties like textContent but in "Puppeteer way". Firstly you must .getProperty() on ElementHandle, and after that convert it to .jsonValue(). Remember that all this operations returns poromises so you should await on all of them like this:

await (await (await page.$('#text')).getProperty('textContent')).jsonValue();

Here is full working example:

const puppeteer = require('puppeteer');

const html = `
<html>
  <body>
    <div id="text">Sample content</div>
  </body>
</html>`;

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto(`data:text/html,${html}`);

  const text = await page.evaluate(() => document.querySelector('#text').textContent);
  const text2 = await (await (await page.$('#text')).getProperty('textContent')).jsonValue();

  console.log(text);
  console.log(text2);

  await browser.close();
})();

https://stackoverflow.com/questions/50242653/how-does-an-elementhandle-differ-from-a-dom-element

You need to use 'ArrowDown'.

The keyboard.press functions wants a string as name of the key. https://github.com/GoogleChrome/puppeteer/blob/master/docs/api.md#keyboardpresskey-options

So the line to press the down arrow would be:

await page.keyboard.press('ArrowDown');

Here is the list of available keys: https://github.com/puppeteer/puppeteer/blob/main/src/common/USKeyboardLayout.ts

https://stackoverflow.com/questions/50352613/is-it-possible-to-simulate-pressing-down-arrow

Here's a comprehensive solution showing how to solve your problem using:

page.$(), page.$$(), page.$eval(), page.$$eval(), page.$x(), and page.evaluate().

// Using page.$()
const is_disabled = await page.$('button[disabled]') !== null;

// Using page.$$()
const is_disabled = (await page.$$('button[disabled]')).length !== 0;

// Using page.$eval()
const is_disabled = await page.$eval('button[disabled]', button => button !== null).catch(error => error.toString() !== 'Error: Error: failed to find element matching selector "button[disabled]"');

// Using page.$$eval()
const is_disabled = await page.$$eval('button[disabled]', buttons => buttons.length !== 0);

// Using page.$x()
const is_disabled = (await page.$x('//button[@disabled]')).length !== 0;

// Using page.evaluate()
const is_disabled = await page.evaluate(() => document.querySelector('button[disabled]') !== null);

https://stackoverflow.com/questions/51524439/checking-an-element-is-disabled-using-puppeteer

The answer is Yes and No.

You can connect to an existing using the connect function:

const browserURL = 'http://127.0.0.1:21222';
const browser = await puppeteer.connect({browserURL});

But, if you want to use those 2 lines you need to launch Chrome with the "--remote-debugging-port=21222 argument.

https://stackoverflow.com/questions/55096771/connecting-browsers-in-puppeteer

I found that Puppeteer has an API method for this purpose: Page.waitForSelector, via its visible option. I wasn't aware of the latter option, but it lets you wait until an element is visible.

await page.waitForSelector('#element', {
  visible: true,
})

Conversely you can wait for an element to be hidden, via the hidden option.

I think this is the idiomatic answer, with regards to the Puppeteer API. Thanks to Colin Cline though as I think his answer is probably useful as a general JavaScript solution.

https://stackoverflow.com/questions/47712679/how-can-i-check-that-an-element-is-visible-with-puppeteer-and-pure-javascript

I tried straight forward approaches to solve this problem and they didn't work. Even obscure apis like CSS expressions and counters don't work to solve this. Fortunately there seems to be a simple enough work around.

We print each page separately using the pageRange parameter and then combine all the pages to generate the required pdf. This enables us to print each header/footer if it were a function of the pageNumber. For example:

const footerTemplate = function (pageNumber) {
    return `<div>Page number: ${pageNumber + 24}</div>`;
};

We need to iterate over each page and print it.

const printPage = function (pageNumber) {
    return {
        ...
        path: `html-page-${pageNumber}.pdf`,
        footerTemplate: footerTemplate(pageNumber),
        pageRanges: String(pageNumber)
    };
};


(async function () {
    ...
    const page = await browser.newPage();
    var pageNumber = 1;
    try {
        while (pageNumber > 0) {
            await page.pdf(printPage(pageNumber));
            pageNumber += 1;
        }
    } catch (e) {
    } finally {
       // Merge and clean up
    }
})();

There is no trivial way to determine the total number of pages to print. So we don't know when to stop. Fortunately, Chrome sends an error when we try to print a page that's out of range. So we can use that to stop our printing.

Attached below is a working sample with page numbers offset by 24. Run with dependencies: fs, pdf-merger-js and puppeteer.

const puppeteer = require("puppeteer");
const PDFMerger = require('pdf-merger-js');
const fs = require("fs");

const footerTemplate = function (pageNumber) {
    return `<div style="font-size: 10px; display: flex; flex-direction: row; justify-content: space-between; width: 100%" id='template'>
        <div>Page number: ${pageNumber + 24}</div>
    </div>`;
};

const mergePdfs = async function (totalPages, fileName) {
    var merger = new PDFMerger();
    for (var pageNumber = 1; pageNumber < totalPages; pageNumber++) {
        await merger.add(`html-page-${pageNumber}.pdf`);
    }
    await merger.save(fileName);
};

const cleanup = function (totalPages) {
    for (var pageNumber = 1; pageNumber < totalPages; pageNumber++) {
        var path = `html-page-${pageNumber}.pdf`
        fs.rmSync(path);
    }
};

const pageSetup = function (pageNumber) {
    return {
        path: `html-page-${pageNumber}.pdf`,
        format: 'Letter',
        printBackground: true,
        displayHeaderFooter: true,
        footerTemplate: footerTemplate(pageNumber),
        pageRanges: String(pageNumber),
        margin: {
            top: '1in',
            right: '0in',
            bottom: '1in',
            left: '0in'
        }
    };
};


(async function () {
    const browser = await puppeteer.launch({
        ignoreHTTPSErrors: true,
        dumpio: true,
        headless: true
    });
    const page = await browser.newPage();
    await page.goto('http://worrydream.com/KillMath/');
    var pageNumber = 1;
    try {
        while (pageNumber > 0) {
            await page.pdf(pageSetup(pageNumber));
            pageNumber += 1;
        }
    } catch (e) {
        await mergePdfs(pageNumber, 'html-page.pdf');
        cleanup(pageNumber);
    }
    await browser.close();
})();

https://stackoverflow.com/questions/52729615/how-to-modify-the-first-pagenumber-or-execute-js-in-header-or-footer-template-wi

You can use the page.exposeFunction to expose a function from the Node.js environment to the page itself. To quote the docs:

The method adds a function called name on the page's window object. When called, the function executes puppeteerFunction in node.js and returns a Promise which resolves to the return value of puppeteerFunction.

Code sample

The code below will expose your function parseUrl to the page. You can then call the function via window.parseUrl from within the page.evaluate.

const puppeteer = require('puppeteer');

function parseUrl(href) {
    // ...
    return '...';
}

(async () => {
    const browser = await puppeteer.launch();
    const page = await browser.newPage();
    await page.exposeFunction('parseUrl', href => parseUrl(href));

    await page.evaluate(async () => {
        const url = 'http://...';
        const parsedUrl = await window.parseUrl(url);
    });
    await browser.close();
})();

A sidenote regarding the parsing of URLs

This is not directly related to your question, but you might not necessarily need to parse the URL inside of the Node.js environment. There is the JavaScript API URL for that, which allows you to parse URLs inside the browser itself like this:

const url = new URL('http://www.example.org/path123');
console.log(url.pathname); // will print: /path123

Depending on your use case, you might not even need to expose a function as you can do it inside the browser itself.

https://stackoverflow.com/questions/56028596/how-to-inject-local-script-with-require-statements-into-puppeteer-page

Blogs

Check out the latest blogs from LambdaTest on this topic:

Automate User Flows with Chrome DevTools Recorder: Jecelyn Yeen [Testμ 2022]

Jecelyn Yeen, Developer Advocate, works on Chrome DevTools at Google. We were so glad to have her on our panel of speakers at the Testμ 2022 conference. Her major focus is on the developer tooling ecosystem. She spoke about improving user experience by creating an automation test script with no code using the Chrome DevTools. Here, she explained the two initiatives the Chrome team is working on to improve the web automation experience.

Top Cross Browser Testing Trends [2022]

With the rapid evolution in technology and a massive increase of businesses going online after the Covid-19 outbreak, web applications have become more important for organizations. For any organization to grow, the web application interface must be smooth, user-friendly, and cross browser compatible with various Internet browsers.

The Why & How To Create A Front-End Website Testing Plan

This article is a part of our Content Hub. For more in-depth resources, check out our content hub on Cross Browser Testing Tutorial.

How Does Enterprise Accelerate Test And Release Velocity?

Staying competitive in today’s corporate world necessitates a continual delivery of client satisfaction. Accelerating release cycles has emerged as a key distinction for businesses wanting to grow their client base. Enterprise tests and releases are built on the foundation of code-level acceleration. It allows teams to write tests at the appropriate level of abstraction to run sooner in the pipeline, iterate faster and at scale, and release higher-quality code faster than ever before.

Playwright Tutorial: Getting Started With Playwright Framework

Playwright is a framework that I’ve always heard great things about but never had a chance to pick up until earlier this year. And since then, it’s become one of my favorite test automation frameworks to use when building a new automation project. It’s easy to set up, feature-packed, and one of the fastest, most reliable frameworks I’ve worked with.

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.