jsreport forum

Xushlin

@admin , how to use merge insert one or many external pdf to document? have any example?

Xushlin

@admin, thanks, I have look at the https://jsreport.net/learn/pdf-utils#usage-in-script, it will appended after source that mean it appended the external PDF to last, but I want insert the Pdf to report middle. have any other ways?

Xushlin

My customer have a requirement that want insert many external PDF to jsreport.

the sample data like this:

    "Projects": [
      { "title":"Title 1",
        "pdfUrl": "https://projectportalstorageprod.blob.core.windows.net/pdf/Ebbepark%20Takavvattning%20test%20aaab_support@projektportalen.se_20241217101008.pdf"
      },
      { "title":"Title 2",
        "pdfUrl": "https://projectportalstorageprod.blob.core.windows.net/pdf/Ebbepark%20Takavvattning%20test%20aaab_support@projektportalen.se_20241217101008.pdf"
      }
    ]
}

and the template like this:

<head>
  <meta name="viewport" content="width=device-width, initial-scale=1.0, shrink-to-fit=no" />
  <meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
</head>
<body>
  {{#each Projects}}
    <div style="color:black;">
      <h3>Title: {{this.title}}</h3>
    </div>
    <div>
     
      <p>Base64 content：</p>
      <p>{{#if this.pdfBase64}}{{this.pdfBase64}}{{else}}No Base64 Data Found{{/if}}</p>
    </div>  
      <div>
       
        {{#pdfMerge}}
          {{#merge}}
            {{pdfRaw this.pdfBase64}}
          {{/merge}}
        {{/pdfMerge}}
      </div>   
  {{/each}} 

</body>
</html>

js code:

const axios = require('axios');

async function beforeRender(req, res) {
  const projects = req.data.Projects;

  const pdfPromises = projects.map(async (project) => {
    try {
      console.log(`Downloading PDF for: ${project.title}, URL: ${project.pdfUrl}`);
      const response = await axios.get(project.pdfUrl, { responseType: 'arraybuffer' });

      console.log(`Status Code for ${project.title}:`, response.status);

      console.log(`Downloaded PDF Size for ${project.title}:`, response.data.length);

      const pdfBase64 = Buffer.from(response.data).toString('base64');

      console.log(`Generated Base64 Length for ${project.title}:`, pdfBase64.length);

      return {
        title: project.title +'Michael xu',
        pdfBase64: pdfBase64
      };
    } catch (error) {
      console.error(`Failed to download PDF for: ${project.title}, Error: ${error.message}`);
      return {
        title: project.title + 'ddd',
        pdfBase64: null
      };
    }
  });

  const pdfData = await Promise.all(pdfPromises);

  req.data.Projects = pdfData;
}

I get result:
0_1734581916584_upload-a6b36fbb-6349-4598-a5c8-80121f1634b2

the report can not render the base64 to PDF content.

How can I fix this case?

Xushlin

@admin, thanks, good solution. works for me now.

Xushlin

How to fix lost line breaks when using unoconv to convert DOCX to PDF?
I used Docx template preview with Docx works well. but convert to PDF it lost line breaks.

1.Word template like this:
{{preserveLineBreaks Description}}
2.preserveLineBreaks function like this:

function escapeXml(unsafe) {
    return unsafe.replace(/[<>&'"]/g, function (c) {
        switch (c) {
            case '<': return '&lt;';
            case '>': return '&gt;';
            case '&': return '&amp;';
            case '\'': return '&apos;';
            case '"': return '&quot;';
        }
    });
}
function preserveLineBreaks(d) {  
  if(d){
    return new Handlebars.SafeString(escapeXml(d).replace(/\n/g, '<w:br/>'));
  }
}

3.Preview as word it works well and result as below:
0_1719460761896_upload-b8bbc500-1947-4551-aec5-bbefbca7c3b8

But it lost line break when I enabled unoconv and preview as PDF, and the reslut as below:
How to fix this issues?

Xushlin

Re: Organizing templates in folders under data

How to via API invoke the tempate of the sub folder? how to translate the template paramaters?

example:

templates/
|---subFolders/
------ foo1
------ foo2
---foo1
---foo2

How to call the templates/subFolers/foo1 in the API?

Xushlin

thanks.

Xushlin

My template have a custom break line fuction. template like this:
{{preserveLineBreaks foo}}

the function as below:

function preserveLineBreaks(d) {
    return new Handlebars.SafeString(d.replace(/\n/g, '<w:br/>'))
}

please see the example here:
https://playground.jsreport.net/w/Xushlin/6FhQQRdP

Xushlin

I render a docx template error when a field string contain a character '&' .

how to fix this problem?

blow is error picture:
0_1642765756531_upload-d4ce7ceb-d26e-4b97-96c3-c50d8ea0fb5c

Xushlin

@Xushlin

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