I have a html file and related js file. I want to import and export data with js. So I have researched references but it said you can do this with UI. But I didn't find anything about how to do this programatically.
There is no endpoint in Parse Server for importing and exporting data. Some Parse Server hosting providers, like Back4App , provide additional endpoints that you can use to import/export data programatically. Otherwise, the best way for you would be creating cloud code functions for importing/exporting the data and then call these functions. Here goes some examples.
For Importing, you can use this cloud code function:
Parse.Cloud.define("import", function (request, response) {
var className = request.params.className;
var rows = request.params.rows;
var MyClass = Parse.Object.extend(className);
var promises = [];
for (var i = 0; i < rows.length; i++) {
var myClassObject = new MyClass();
for (var column in rows[i]) {
myClassObject.set(column, rows[i][column]);
}
promises.push(myClassObject.save());
}
Parse.Promise
.when(promises)
.then(
function () {
response.success('Successfully imported ' + i + ' rows into ' + className + ' class');
},
function (error) {
response.error('Import failed: ' + error);
});
});
Then prepare a data.json
file like this:
{
"className": "ExampleClass",
"rows": [
{ "ExampleColumnA": "row1columnA", "ExampleColumnB": "row1columnB" },
{ "ExampleColumnA": "row2columnA", "ExampleColumnB": "row2columnB"}
]
}
Then call the function like this:
curl -X POST \
-H "X-Parse-Application-Id: YOUR_APP_ID" \
-H "X-Parse-REST-API-Key: YOUR_REST_KEY" \
-H "Content-Type: application/json" \
-d @data.json \
https://your.server.url/functions/import
For exporting the data, use this cloud code function:
Parse.Cloud.define("export", function(request, response) {
var ExportObject = Parse.Object.extend(request.params.exportClass);
var query = new Parse.Query(ExportObject);
query.find({ success: response.success, error: response.error });
});
And call this cloud code function like this:
curl -X POST \
-H "X-Parse-Application-Id: YOUR_APP_ID" \
-H "X-Parse-REST-API-Key: YOUR_REST_KEY" \
-H "Content-Type: application/json" \
-d '{"exportClass": "MyClass"}' \
https://your.server.url/functions/export > out.json
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