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json-to-xml-conversion.html
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json-to-xml-conversion.html
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<title>Ballerina by Example: JSON To XML Conversion</title>
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<div class="highlight"><pre><span class="kd">function</span> <span class="nx">main</span> <span class="p">(</span><span class="kt">string</span><span class="p">[]</span> <span class="nx">args</span><span class="p">)</span> <span class="p">{</span>
<span class="kt">json</span> <span class="nx">j1</span> <span class="p">=</span> <span class="p">{</span><span class="s">"Store"</span><span class="p">:{</span>
<span class="s">"@id"</span><span class="p">:</span><span class="s">"AST"</span><span class="p">,</span>
<span class="s">"name"</span><span class="p">:</span><span class="s">"Anne"</span><span class="p">,</span>
<span class="s">"address"</span><span class="p">:{</span>
<span class="s">"street"</span><span class="p">:</span><span class="s">"Main"</span><span class="p">,</span>
<span class="s">"city"</span><span class="p">:</span><span class="s">"94"</span>
<span class="p">},</span>
<span class="s">"codes"</span><span class="p">:[</span><span class="s">"4"</span><span class="p">,</span> <span class="s">"8"</span><span class="p">]</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="nx">jsonOptions</span> <span class="nx">options1</span> <span class="p">=</span> <span class="p">{};</span>
<span class="kt">xml</span> <span class="nx">x1</span> <span class="p">=</span> <span class="nx">j1</span><span class="p">.</span><span class="nx">toXML</span><span class="p">(</span><span class="nx">options1</span><span class="p">);</span>
<span class="nb">println</span><span class="p">(</span><span class="nx">x1</span><span class="p">);</span>
<span class="kt">json</span> <span class="nx">j2</span> <span class="p">=</span> <span class="p">{</span><span class="s">"Store"</span><span class="p">:{</span>
<span class="s">"#id"</span><span class="p">:</span><span class="s">"AST"</span><span class="p">,</span>
<span class="s">"name"</span><span class="p">:</span><span class="s">"Anne"</span><span class="p">,</span>
<span class="s">"address"</span><span class="p">:{</span>
<span class="s">"street"</span><span class="p">:</span><span class="s">"Main"</span><span class="p">,</span>
<span class="s">"city"</span><span class="p">:</span><span class="s">"94"</span>
<span class="p">},</span>
<span class="s">"codes"</span><span class="p">:[</span><span class="s">"4"</span><span class="p">,</span> <span class="s">"8"</span><span class="p">]</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="nx">jsonOptions</span> <span class="nx">options2</span> <span class="p">=</span> <span class="p">{</span><span class="nx">attributePrefix</span><span class="p">:</span><span class="s">"#"</span><span class="p">,</span> <span class="nx">arrayEntryTag</span><span class="p">:</span><span class="s">"wrapper"</span><span class="p">};</span>
<span class="kt">xml</span> <span class="nx">x2</span> <span class="p">=</span> <span class="nx">j2</span><span class="p">.</span><span class="nx">toXML</span><span class="p">(</span><span class="nx">options2</span><span class="p">);</span>
<span class="nb">println</span><span class="p">(</span><span class="nx">x2</span><span class="p">);</span>
<span class="p">}</span>
</pre></div>
</div>
<div class="example" id="json-to-xml-conversion">
<div class="col-xs-11 col-sm-11 col-md-11">
<h2><a href="./">Ballerina by Example</a>: JSON To XML Conversion</h2>
</div>
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<a href="./" class="cBackButton"><img src="http://b.content.wso2.com/sites/all/ballerina/backbutton.svg"/></a>
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<div class="col-xs-12 col-sm-12 col-md-12">
<table>
<tr>
<td class="docs">
<p>JSON to XML conversion can be done using ‘toXML’ function. This function takes
the JSON to be converted and struct of options as arguments. The options
struct has two fields, attributePrefix which is used as the prefix to identify
XML attribute where default value is ‘@’. And arrayEntryTag as the
name of the tag to be added to each entry of JSON arrays.</p>
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kd">function</span> <span class="nx">main</span> <span class="p">(</span><span class="kt">string</span><span class="p">[]</span> <span class="nx">args</span><span class="p">)</span> <span class="p">{</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Create JSON.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="kt">json</span> <span class="nx">j1</span> <span class="p">=</span> <span class="p">{</span><span class="s">"Store"</span><span class="p">:{</span>
<span class="s">"@id"</span><span class="p">:</span><span class="s">"AST"</span><span class="p">,</span>
<span class="s">"name"</span><span class="p">:</span><span class="s">"Anne"</span><span class="p">,</span>
<span class="s">"address"</span><span class="p">:{</span>
<span class="s">"street"</span><span class="p">:</span><span class="s">"Main"</span><span class="p">,</span>
<span class="s">"city"</span><span class="p">:</span><span class="s">"94"</span>
<span class="p">},</span>
<span class="s">"codes"</span><span class="p">:[</span><span class="s">"4"</span><span class="p">,</span> <span class="s">"8"</span><span class="p">]</span>
<span class="p">}</span>
<span class="p">};</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Convert to XML with default attribute prefix and arrayEntryTag.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">jsonOptions</span> <span class="nx">options1</span> <span class="p">=</span> <span class="p">{};</span>
<span class="kt">xml</span> <span class="nx">x1</span> <span class="p">=</span> <span class="nx">j1</span><span class="p">.</span><span class="nx">toXML</span><span class="p">(</span><span class="nx">options1</span><span class="p">);</span>
<span class="nb">println</span><span class="p">(</span><span class="nx">x1</span><span class="p">);</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Convert to XML with custom attribute prefix and custom array tag.</p>
</td>
<td class="code">
<div class="highlight"><pre> <span class="kt">json</span> <span class="nx">j2</span> <span class="p">=</span> <span class="p">{</span><span class="s">"Store"</span><span class="p">:{</span>
<span class="s">"#id"</span><span class="p">:</span><span class="s">"AST"</span><span class="p">,</span>
<span class="s">"name"</span><span class="p">:</span><span class="s">"Anne"</span><span class="p">,</span>
<span class="s">"address"</span><span class="p">:{</span>
<span class="s">"street"</span><span class="p">:</span><span class="s">"Main"</span><span class="p">,</span>
<span class="s">"city"</span><span class="p">:</span><span class="s">"94"</span>
<span class="p">},</span>
<span class="s">"codes"</span><span class="p">:[</span><span class="s">"4"</span><span class="p">,</span> <span class="s">"8"</span><span class="p">]</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="nx">jsonOptions</span> <span class="nx">options2</span> <span class="p">=</span> <span class="p">{</span><span class="nx">attributePrefix</span><span class="p">:</span><span class="s">"#"</span><span class="p">,</span> <span class="nx">arrayEntryTag</span><span class="p">:</span><span class="s">"wrapper"</span><span class="p">};</span>
<span class="kt">xml</span> <span class="nx">x2</span> <span class="p">=</span> <span class="nx">j2</span><span class="p">.</span><span class="nx">toXML</span><span class="p">(</span><span class="nx">options2</span><span class="p">);</span>
<span class="nb">println</span><span class="p">(</span><span class="nx">x2</span><span class="p">);</span>
<span class="p">}</span>
</pre></div>
</td>
</tr>
</table>
<table>
<tr>
<td class="docs">
</td>
<td class="code">
<div class="highlight"><pre><span class="gp">$</span> ballerina run json-to-xml-conversion.bal
<span class="go"><Store id="AST"><name>Anne</name><address><street>Main</street><city>94</city></span>
<span class="go"></address><codes><item>4</item><item>8</item></codes></Store></span>
<span class="go"><Store id="AST"><name>Anne</name><address><street>Main</street><city>94</city></span>
<span class="go"></address><codes><wrapper>4</wrapper><wrapper>8</wrapper></codes></Store></span>
</pre></div>
</td>
</tr>
</table>
<p class="next">
Next example: <a href="xml-to-json-conversion">XML To JSON Conversion</a>.
</p>
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by <a href="https://twitter.com/ballerinalang">@ballerinalang</a> | <a href="mailto:ballerina-dev@googlegroups.com">feedback</a> | <a href="https://github.com/ballerinalang/ballerina/tree/master/samples/ballerina-by-example/examples/json-to-xml-conversion">source</a>
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This site was generated using a <a href="https://github.com/mmcgrana/gobyexample/">tool</a> developed by <a href="https://twitter.com/mmcgrana">@mmcgrana</a>, licensed under <a href="https://creativecommons.org/licenses/by/2.0/">CC BY</a> / modified from original
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