Posts made by Ngô Duy

Hello.

jsreport.afterRenderListeners.add('someName', async (req, res) => {
    console.log("TEST")
    afterRender(req,res)
})
async function afterRender (req, res) {    
    console.log(res.content)
}

i push a line console.log("TEST") in this function and it's show 4 times when i generate a report. What happen ? (I use some background, footer, header,... )

I try

const jsreport = require('jsreport')()

jsreport.afterRenderListeners.add('someName', async (req, res) => {
    console.log("HAHAHA")
    afterRender(req,res)
})
async function afterRender (req, res) {    
    // here use extra code to check if res.content is valid
    if (Math.random() > 0.5) {
        // its ok
        return
    }

    //retry
    const retryRes = await require('jsreport-proxy').render({...req})
    res.content = retryRes.content
}
if (process.env.JSREPORT_CLI) {
  // export jsreport instance to make it possible to use jsreport-cli
  module.exports = jsreport
} else {
  jsreport.init().then(() => {
	console.log("JSreport POWERFUL!")
    // running
  }).catch((e) => {
    // error during startup
    console.error(e.stack)
    process.exit(1)
  })
}

But it told me that: "Can not find jsreport-proxy module" ?

Where is the list event listenner i can use ? Example: afterRenderListeners ?

Can i throw error to client if i detect error font ?

yes it happens randomly but not because of pdf-parse but i use pdf-parse to read the text in pdf to confirm that there is no font error i will return it to client and if font error i will output the pdf again As long as there is no font error, that's it.

[QUESTION]
jsreport.afterRenderListeners.add('someName', async (req, res) => {
console.log(res.content)
})
how can i use check pdf-parse in this. and when successful, I return the client and if not successful I will generate the PDF again?

Hello i create a server to generate PDF
const jsreport = require('jsreport')()

But sometime PDF generate with error fonts (I try to find problem but still dont know why). So I use pdf-parse to validate if fonts error. But i use it from client. The problem is I have more than 1 client so i want use pdf-parse from server before send PDF to client.

Is there any way to do that ?

any idea ?

@jan_blaha

Hello, i found that character convert wrong. I convert from HTML UTF-8

&nbsp become Â

Dear @bjrmatos
How about Debian and Centos ?
I'm facing JSREPORT generate &nbsp become Â

Right. It usually shows up right on my computer. But sometimes it shows wrong.

My config in a 8 core, 8 Gb Ram machine. Pls review and suggest if i doing something wrong. I using version 2.10.0.

{
    "httpPort": 5488,
    "reportTimeout": 600000,
	"enableRequestReportTimeout":true,
    "logger": {
        "console": {
            "transport": "console",
            "level": "error"
        },
        "file": {
            "transport": "file",
            "level": "info",
            "filename": "logs/reporter.log"
        },
        "error": {
            "transport": "file",
            "level": "error",
            "filename": "logs/error.log"
        }
    },
    "allowLocalFilesAccess": true,
    "store": {
        "provider": "memory"
    },
    "blobStorage": {
        "provider": "memory"
    },
    "trustUserCode": false,
    "templatingEngines": {
        "numberOfWorkers": 8,
        "strategy": "in-process"
    },
    "chrome": {
        "launchOptions": {
            "args": [
                "--no-sandbox",
				"--disable-setuid-sandbox"
            ]
        }
    },
    "workers": {
        "numberOfWorkers": 2
    },
    "extensions": {
        "authentication": {
            "cookieSession": {
                "secret": "place_holder_password@cenTos",
                "cookie": {
                    "secure": true
                }
            },
            "admin": {
                "username": "place_holder_admin",
                "password": "place_holder_password"
            },
			"authorizationServer": {"tokenValidation": {"endpoint": "http://place_holder_url:3000/api/jsreport","auth": false}},
            "enabled": true
        },
        "chrome-pdf": {
            "timeout": 600000,
            "strategy": "chrome-pool",
            "numberOfWorkers": 8
        }
    }
}

I only got this error on pm2 log:

2022-09-13T00:00:49: pdf utils failed to remove the hidden marks from pdf, this has no significant impact, but please report the issue. Error: incorrect header check
    at Zlib.zlibOnError [as onerror] (node:zlib:189:17)
    at processChunkSync (node:zlib:457:12)
    at zlibBufferSync (node:zlib:178:12)
    at Object.syncBufferWrapper [as unzipSync] (node:zlib:792:14)
    at processStream (/jsreportapp/node_modules/jsreport-pdf-utils/lib/utils/processText.js:50:22)
    at processStream (/jsreportapp/node_modules/jsreport-pdf-utils/lib/utils/processText.js:74:13)
    at runMicrotasks (<anonymous>)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at async processStream (/jsreportapp/node_modules/jsreport-pdf-utils/lib/utils/processText.js:74:7)
    at async module.exports (/jsreportapp/node_modules/jsreport-pdf-utils/lib/utils/processText.js:215:7)
    at async Object.postprocess (/jsreportapp/node_modules/jsreport-pdf-utils/lib/utils/pdfManipulator.js:104:7)
    at async module.exports (/jsreportapp/node_modules/jsreport-pdf-utils/lib/scriptPdfProcessing.js:83:5)
    at async scriptExecModuleWrapper (/jsreportapp/node_modules/jsreport-core/lib/scriptExecModuleWrapper.js:34:20) {
  errno: -3,
  code: 'Z_DATA_ERROR'
}

ecosystem.config.js

module.exports = {
  apps: [{
    name: "jsreport-server",
    script: "./server.js",
    instances: 1,
    exec_mode  : "cluster",
    autorestart: true,
    time: true,
    node_args: "--max_old_space_size=1024",
    max_memory_restart:"1024M"
  }]
}

my server.js running by pm2

const jsreport = require('jsreport')()

if (process.env.JSREPORT_CLI) {
  // export jsreport instance to make it possible to use jsreport-cli
  module.exports = jsreport
} else {
  jsreport.init().then(() => {
    // running
  }).catch((e) => {
    // error during startup
    console.error(e.stack)
    process.exit(1)
  })
}

It look like only happen on "accented letters". And another interesting thing is that it just happens randomly. As you can see in the picture, there are places that are faulty, there are places that are not

I exact font in file PDF and got below

No. I can't. I dont know how to reproduce that to fix.

I only know that it's not frequently happen. Randomly.

Hello. Sometime we receive an error font PDF.
Almost character become "A"

What's my problem ? How to fix that ? Or where it come from ? PLs suggest me and i will check

Hello.

This is the monitor of jsreport over 2 week. Any idea ?
Can you guess where the problem lies?

What is the direct impact on the processing speed of a device? What do I need to do if I want to speed it up?

I change real url to https://jsreport.url/api/report in log

I run jsreport on a container. After i change store and blobStorage to FS. It's only handle a little request. After then it got many error.

Check log below:

i find out where this error come from : "Warning: TT: undefined function: 32"
Closing since nothing is broken. Messages "TT: undefined function" are bad font recovery messages. - Stranger internet

In my case. I use font Calibri. I dont know why ? And can u send me version moment for 2.11.0 and 3.5.0 ?

OK. I try to install 2.11.0 or 3.5.0 and this error disapear.

Hello i find out that is when i save this image with .jpeg. And use jsreport to show it. It's cause the error.

Gabriel Dehner:
I changed the "Content-Type: application / json"

Hello, can u tell me exactly where u change ? I have the same issue.

hello.

I have a config file as below. How can i set limit request handling. Example 3 request per seconds. Or 3 request in queue ?

{
"httpPort": 5488,
"reportTimeout": 600000,
"enableRequestReportTimeout":true,
"certificate": {
"key": "cert.key",
"cert": "cert.crt"
},
"logger": {
"console": { "transport": "console", "level": "error" }
},
"allowLocalFilesAccess": true,
"store": {
"provider": "memory"
},
"blobStorage": {
"provider": "memory"
},
"templatingEngines": {
"numberOfWorkers" : 8,
"strategy": "http-server"
},
"extensions": {
"authentication": {
"cookieSession": {
"secret": "dainb@0986301253@cenTos",
"cookie": {
"secure": true
}
},
"admin": {
"username": "admin",
"password": "jsreport@5488"
},
"enabled": true
},
"chrome-pdf": {
"timeout": 600000,
"strategy": "chrome-pool",
"numberOfWorkers": 8
}
}
}

We push in html around 500-700kb. Thank you. I can handle from there.