10 examples of 'javascript read local json file' in JavaScript

629
function read_json_file(fname) {
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  try {
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    var txt = fs.readFileSync(fname, 'utf8');
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    return JSON.parse(txt);
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  } catch (err) {
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    return null;
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  }
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}

27
function readJsons() {
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  function jsonIfExists(file) {
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    if (!utl.existsSync(file)) return null;
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    var json = fs.readFileSync(file, 'utf8')
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      , metadata = JSON.parse(json)
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      ;
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    metadata.created = utl.stringToDate(metadata.created);
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    metadata.updated = utl.stringToDate(metadata.updated);
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    return metadata;
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  }
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  blogjson = jsonIfExists(blogjsonFile);
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  postunojson = jsonIfExists(postunojsonFile);
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  postdosjson = jsonIfExists(postdosjsonFile);
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}

37
function loadJson(filename) {
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    return JSON.parse(fs.readFileSync(filename).toString());
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}

4
function loadJSON(filePath) {
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  // Load json file;
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  var json = loadTextFileAjaxSync(filePath, "application/json");
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  // Parse json
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  return JSON.parse(json);
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}

31
function readFile(filename, json) {
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  const file = fs.readFileSync(filename, 'utf8');
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  return json ? JSON.parse(file) : file;
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}

48
function JSON (file, callback) {
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    fileUtils.read(file, function (contents) {
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        if (!JSHINT(contents)) {
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            var out = JSHINT.data(),
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            errors = out.errors;
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            callback(errors);
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        } else {
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            callback(null);
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        }
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    });
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}

9
function loadJSON(callback) {
10
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	var xobj = new XMLHttpRequest();
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	xobj.overrideMimeType("application/json");
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	xobj.open('GET', 'sample_data_lwm_3d.json', true);
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	xobj.onreadystatechange = function () {
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		// When response is ready
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		if (xobj.readyState == 4 && xobj.status == 200) {
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			// .open will NOT return a value but simply returns undefined in async mode so use a callback
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			callback(xobj.responseText);
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		}
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	}
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	xobj.send(null);
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}

41
function loadJson(file, jsonId)
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{
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   if ( ! file ) return;
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   $('#jsonFile').val('');
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   var reader = new FileReader();
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   reader.onload = function(e) {
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      doLoadJson(e.target.result, jsonId);
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   };
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   reader.readAsText(file);
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}

12
function loadJSON(path, callback) {
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    var request = new XMLHttpRequest();
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    request.overrideMimeType("application/json");
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    request.open('GET', '' + path, true);
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    request.onreadystatechange = function () {
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        if (request.readyState == 4 && (request.status == "200" || request.status == 0)) {
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            callback(JSON.parse(request.responseText));
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        }
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    };
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    request.send(null);
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}

81
readFromLocalJson(localUrl){
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  return this.http.get(localUrl, this.requestOpts)
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      .toPromise()
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      .then(res => res.json())
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      .catch(this.handleError);
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}