From 5c8ae221b332f4f71949715fd872009a49bd1d5c Mon Sep 17 00:00:00 2001
From: tannerjt <biolsurfer85@gmail.com>
Date: Wed, 13 Feb 2019 21:24:31 -0800
Subject: [PATCH] feat: add demo for streaming response to file

---
 demos/stream-response-to-file/.gitignore      |  2 +
 demos/stream-response-to-file/index.js        | 29 +++++++++
 .../stream-response-to-file/package-lock.json | 62 +++++++++++++++++++
 demos/stream-response-to-file/package.json    | 29 +++++++++
 4 files changed, 122 insertions(+)
 create mode 100644 demos/stream-response-to-file/.gitignore
 create mode 100644 demos/stream-response-to-file/index.js
 create mode 100644 demos/stream-response-to-file/package-lock.json
 create mode 100644 demos/stream-response-to-file/package.json

diff --git a/demos/stream-response-to-file/.gitignore b/demos/stream-response-to-file/.gitignore
new file mode 100644
index 0000000000..db3986b744
--- /dev/null
+++ b/demos/stream-response-to-file/.gitignore
@@ -0,0 +1,2 @@
+output/*
+output/contents.txt
\ No newline at end of file
diff --git a/demos/stream-response-to-file/index.js b/demos/stream-response-to-file/index.js
new file mode 100644
index 0000000000..5eb85a9346
--- /dev/null
+++ b/demos/stream-response-to-file/index.js
@@ -0,0 +1,29 @@
+const { request } = require("../../packages/arcgis-rest-request");
+const fs = require("fs");
+const fetch = require('node-fetch');
+require('isomorphic-form-data')
+
+const outFile = fs.createWriteStream(`./output/${Date.now()}.geojson`);
+const serviceUrl = "https://services.arcgis.com/uUvqNMGPm7axC2dD/arcgis/rest/services/Boating_Access_Sites/FeatureServer/0/query";
+
+request(serviceUrl, {
+  params: {
+    where: "1=1",
+    outSR: "4326",
+    outFields: "*",
+    returnGeometry: true,
+    f: "geojson"
+  },
+  stream: true,
+  fetch: fetch
+}).then((resp) => {
+  resp.pipe(outFile);
+  resp.on('data', () => {
+    console.log('Chunk received')
+  });
+  resp.on('end', () => {
+    console.log('Finished!');
+  });
+}).catch((err) => {
+  console.log(err);
+})
\ No newline at end of file
diff --git a/demos/stream-response-to-file/package-lock.json b/demos/stream-response-to-file/package-lock.json
new file mode 100644
index 0000000000..e58a03c97f
--- /dev/null
+++ b/demos/stream-response-to-file/package-lock.json
@@ -0,0 +1,62 @@
+{
+  "name": "stream-response-to-file",
+  "version": "1.16.1",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
+    },
+    "combined-stream": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.7.tgz",
+      "integrity": "sha512-brWl9y6vOB1xYPZcpZde3N9zDByXTosAeMDo4p1wzo6UMOX4vumB+TP1RZ76sfE6Md68Q0NJSrE/gbezd4Ul+w==",
+      "requires": {
+        "delayed-stream": "1.0.0"
+      }
+    },
+    "delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
+    },
+    "form-data": {
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.3.3.tgz",
+      "integrity": "sha512-1lLKB2Mu3aGP1Q/2eCOx0fNbRMe7XdwktwOruhfqqd0rIJWwN4Dh+E3hrPSlDCXnSR7UtZ1N38rVXm+6+MEhJQ==",
+      "requires": {
+        "asynckit": "0.4.0",
+        "combined-stream": "1.0.7",
+        "mime-types": "2.1.21"
+      }
+    },
+    "isomorphic-form-data": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/isomorphic-form-data/-/isomorphic-form-data-2.0.0.tgz",
+      "integrity": "sha512-TYgVnXWeESVmQSg4GLVbalmQ+B4NPi/H4eWxqALKj63KsUrcu301YDjBqaOw3h+cbak7Na4Xyps3BiptHtxTfg==",
+      "requires": {
+        "form-data": "2.3.3"
+      }
+    },
+    "mime-db": {
+      "version": "1.37.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.37.0.tgz",
+      "integrity": "sha512-R3C4db6bgQhlIhPU48fUtdVmKnflq+hRdad7IyKhtFj06VPNVdk2RhiYL3UjQIlso8L+YxAtFkobT0VK+S/ybg=="
+    },
+    "mime-types": {
+      "version": "2.1.21",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.21.tgz",
+      "integrity": "sha512-3iL6DbwpyLzjR3xHSFNFeb9Nz/M8WDkX33t1GFQnFOllWk8pOrh/LSrB5OXlnlW5P9LH73X6loW/eogc+F5lJg==",
+      "requires": {
+        "mime-db": "1.37.0"
+      }
+    },
+    "node-fetch": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.3.0.tgz",
+      "integrity": "sha512-MOd8pV3fxENbryESLgVIeaGKrdl+uaYhCSSVkjeOb/31/njTpcis5aWfdqgNlHIrKOLRbMnfPINPOML2CIFeXA=="
+    }
+  }
+}
diff --git a/demos/stream-response-to-file/package.json b/demos/stream-response-to-file/package.json
new file mode 100644
index 0000000000..ff27d757d7
--- /dev/null
+++ b/demos/stream-response-to-file/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "stream-response-to-file",
+  "version": "1.16.1",
+  "description": "stream response to file with arcgis-rest-request",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/Esri/arcgis-rest-js.git"
+  },
+  "keywords": [
+    "arcgis",
+    "rest",
+    "stream",
+    "node"
+  ],
+  "author": "Joshua Tanner",
+  "license": "Apache-2.0",
+  "bugs": {
+    "url": "https://github.com/Esri/arcgis-rest-js/issues"
+  },
+  "homepage": "https://github.com/Esri/arcgis-rest-js#readme",
+  "dependencies": {
+    "isomorphic-form-data": "^2.0.0",
+    "node-fetch": "^2.3.0"
+  }
+}