json-conversion-tool
v2.0.3
Published
Provides functionality for converting JSON objects into a relational structure and then outputting to various formats (csv, markdown, html etc.)
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JSON-CONVERSION-TOOL
NPM
Github
Description
Provides functions for converting JSON objects to and from CSVs.
Try me out
Usage
Example
const deeperPersonJson = [
{
id: 1,
personalInfo: {
firstName: 'John',
lastName: 'Smith',
title: 'Mr'
},
jobInfo: {
department: 'HR',
title: 'HR Assistant',
},
Awards: [
{
year: 2016,
title: 'Best at Everything'
}
]
},
{
id: 2,
personalInfo: {
firstName: 'Jane',
lastName: 'Doe',
title: 'Mrs'
},
jobInfo: {
department: 'Sales',
title: 'Sales Executive',
}
},
{
id: 3,
personalInfo: {
firstName: 'John',
lastName: 'Doe',
title: 'Mr'
},
jobInfo: {
department: 'R&D',
title: 'Data Scientist',
},
warnings: [
{
year: 2016,
reason: 'Farted in the coffee machine'
}
]
},
];
const relationalJson: RelationalJson = new Converter().convertJson(DeeperPersonJson, {});
const outputGenerator = new OutputGenerator(relationalJson);
const csv = outputGenerator.generateCsv();
const markdown = outputGenerator.generateMarkdown();
const html = outputGenerator.generateOutput({
columnSeperator: '',
tableLevelCallback: (output: string, table: RelationalJson) =>
output + `<h1>${table.title}</h1>` + '<table><tr>' + table.columnNames.map(x => `<th>${x}</th>`).join('') + '</tr>',
rowLevelCallback: (rowCol: IRowValue) => `<td>${rowCol.value}</td>`,
rowStartOutput: '<tr>',
rowEndOutput: '</tr>',
tableEndOutput: '</table>',
tableSpacing: '<br>',
});
CSV Output
id,personalInfo.firstName,personalInfo.lastName,personalInfo.title,jobInfo.department,jobInfo.title,Awards,warnings
1,John,Smith,Mr,HR,HR Assistant,1,
2,Jane,Doe,Mrs,Sales,Sales Executive,,
3,John,Doe,Mr,R&D,Data Scientist,,1
Awards
year,title
2016,Best at Everything
warnings
year,reason
2016,Farted in the coffee machine
Markdown Output
Converted JSON
|id|personalInfo.firstName|personalInfo.lastName|personalInfo.title|jobInfo.department|jobInfo.title|Awards|warnings |---|---|---|---|---|---|---|--- 1|John|Smith|Mr|HR|HR Assistant|1| 2|Jane|Doe|Mrs|Sales|Sales Executive|| 3|John|Doe|Mr|R&D|Data Scientist||1
Awards
|year|title |---|--- 2016|Best at Everything
warnings
|year|reason |---|--- 2016|Farted in the coffee machine
HTML (custom) Output
<h1>Converted JSON</h1>
<table>
<tr>
<th>id</th>
<th>personalInfo.firstName</th>
<th>personalInfo.lastName</th>
<th>personalInfo.title</th>
<th>jobInfo.department</th>
<th>jobInfo.title</th>
<th>Awards</th>
<th>warnings</th>
</tr>
<tr>
<td>1</td>
<td>John</td>
<td>Smith</td>
<td>Mr</td>
<td>HR</td>
<td>HR Assistant</td>
<td>1</td>
</tr>
<tr>
<td>2</td>
<td>Jane</td>
<td>Doe</td>
<td>Mrs</td>
<td>Sales</td>
<td>Sales Executive</td>
</tr>
<tr>
<td>3</td>
<td>John</td>
<td>Doe</td>
<td>Mr</td>
<td>R&D</td>
<td>Data Scientist</td>
<td>1</td>
</tr>
</table>
<br>
<h1>Awards</h1>
<table>
<tr>
<th>year</th>
<th>title</th>
</tr>
<tr>
<td>2016</td>
<td>Best at Everything</td>
</tr>
</table>
<br>
<h1>warnings</h1>
<table>
<tr>
<th>year</th>
<th>reason</th>
</tr>
<tr>
<td>2016</td>
<td>Farted in the coffee machine</td>
</tr>
</table>
Dot notation
You can also specify specifc fields to get based on dot notation, such as:
new OutputGenerator({ new Converter().convertJson(apiJson,{whiteList: ['prefs.backgroundImageScaled.url'])});
Or
new OutputGenerator({ new Converter().convertJson(apiJson,{whiteList: ['name', 'cards.*'])});
Contributing
- Clone the repo and run
npm install
. - Create a new feature branch:
git checkout -b feature/your-feature-branch-name
. - Write a test in the
__tests__
folder for your feature. - Write the code to get the test passing, running
npm run test
. - Push your branch up and submit a pull request.
Note: I have configured a launch.json for vscode that should allow for playing around with anything in index.ts and hitting f5 to debug.
Publishing
- npm version patch
- npm publish