Readd geojson2ndgeojson

Author: tariqksoliman

auxiliary/geojson2ndgeojson/README.md

@@ -0,0 +1,58 @@
+# geojson2ndgeojson
+
+_GeoJSON to Newline Delimited GeoJSON_
+
+## Purpose
+
+In the case of needing to upload large geojson file, 500mb+, it is easier for stream uploading services to chunk such file where each feature is delimited by a new line.
+
+### Turns:
+
+_test.geojson_
+
+```json
+{
+  "type": "FeatureCollection",
+  "features": [
+    {
+      "type": "Feature",
+      "properties": { "name": "A" },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [[137, -4]]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": { "name": "B" },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [[136, -4]]
+      }
+    }
+  ]
+}
+```
+
+### Into:
+
+_test.ndgeojson_
+
+```json
+{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Point","coordinates":[[137,-4]]}}
+{"type":"Feature","properties":{"name":"B"},"geometry":{"type":"Point","coordinates":[[136,-4]]}}
+```
+
+## Running
+
+Install Dependencies:
+
+```
+npm install JSONStream
+```
+
+Run:
+
+```
+node geojson2ndgeojson.js test.geojson
+```

auxiliary/geojson2ndgeojson/geojson2ndgeojson.js

@@ -0,0 +1,43 @@
+// GeoJSON to Newline Delimited GeoJSON
+// npm install JSONStream
+// node geojson2ndgeojson.js test.geojson
+
+const fs = require("fs");
+const readline = require("readline");
+const JSONStream = require("JSONStream");
+
+const inputFile = process.argv[2];
+if (inputFile == null) {
+  console.error("Please provide and input GeoJSON file path.");
+  process.exit(1);
+}
+
+const outputFile = inputFile
+  .replace(".json", ".ndgeojson")
+  .replace(".geojson", ".ndgeojson");
+
+const readStream = fs.createReadStream(inputFile, { encoding: "utf8" });
+const writeStream = fs.createWriteStream(outputFile, { encoding: "utf8" });
+
+const parser = JSONStream.parse("features.*");
+
+console.log("Processing...");
+
+readStream.pipe(parser);
+
+parser.on("data", (feature) => {
+  writeStream.write(JSON.stringify(feature) + "\n");
+});
+
+parser.on("end", () => {
+  console.log("Processing complete!");
+  writeStream.end();
+});
+
+parser.on("error", (err) => {
+  console.error("Error parsing JSON:", err);
+});
+
+writeStream.on("error", (err) => {
+  console.error("Error writing to file:", err);
+});

auxiliary/geojson2ndgeojson/test.geojson

@@ -0,0 +1,21 @@
+{
+  "type": "FeatureCollection",
+  "features": [
+    {
+      "type": "Feature",
+      "properties": { "name": "A" },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [[137, -4]]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": { "name": "B" },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [[136, -4]]
+      }
+    }
+  ]
+}