{"metadata":{"image":[],"title":"","description":""},"api":{"url":"","auth":"required","results":{"codes":[]},"settings":"","params":[]},"next":{"description":"","pages":[]},"title":"Node.js Setup: Linux/Embedded Systems","type":"basic","slug":"install-nodejs-on-linux","excerpt":"","body":"[block:api-header]\n{\n  \"type\": \"basic\",\n  \"title\": \"x86/x64 Linux Desktop\"\n}\n[/block]\nHead over to https://nodejs.org/en/download/ to get the download url to NodeJS. For this demonstration, NodeJS (v7.2.0) will be installed on Ubuntu 16.04.1.\n[block:image]\n{\n  \"images\": [\n    {\n      \"image\": [\n        \"https://files.readme.io/ca26c74-Screenshot_from_2016-12-06_12-38-20.png\",\n        \"Screenshot from 2016-12-06 12-38-20.png\",\n        1052,\n        665,\n        \"#e7eee7\"\n      ]\n    }\n  ]\n}\n[/block]\nNext, open up **Terminal** and use `wget` to download the Linux binary.\n\n```\nwget https://nodejs.org/dist/v7.2.0/node-v7.2.0-linux-x64.tar.xz\n```\n[block:image]\n{\n  \"images\": [\n    {\n      \"image\": [\n        \"https://files.readme.io/9b600c0-Screenshot_from_2016-12-06_12-37-28.png\",\n        \"Screenshot from 2016-12-06 12-37-28.png\",\n        746,\n        452,\n        \"#060607\"\n      ]\n    }\n  ]\n}\n[/block]\nNow use `tar` to unpack the file.\n\n```\n tar -xvf node-v7.2.0-linux-x64.tar.xz\n```\n[block:image]\n{\n  \"images\": [\n    {\n      \"image\": [\n        \"https://files.readme.io/af7aaf2-Screenshot_from_2016-12-06_12-49-59.png\",\n        \"Screenshot from 2016-12-06 12-49-59.png\",\n        746,\n        452,\n        \"#050507\"\n      ]\n    }\n  ]\n}\n[/block]\nInstall NodeJS into `/usr/local/`.\n```\ncd node-v7.2.0-linux-x64\nsudo cp -R * /usr/local/\n```\n[block:image]\n{\n  \"images\": [\n    {\n      \"image\": [\n        \"https://files.readme.io/28f61d9-Screenshot_from_2016-12-06_12-52-22.png\",\n        \"Screenshot from 2016-12-06 12-52-22.png\",\n        746,\n        452,\n        \"#040404\"\n      ]\n    }\n  ]\n}\n[/block]\nYou can check that NodeJS and NPM are installed correctly by confirming their version numbers from **Terminal** by running\n\n```\nnode -v\nnpm -v\n```\n[block:image]\n{\n  \"images\": [\n    {\n      \"image\": [\n        \"https://files.readme.io/c2bfe01-Screenshot_from_2016-12-06_12-53-56.png\",\n        \"Screenshot from 2016-12-06 12-53-56.png\",\n        746,\n        452,\n        \"#040404\"\n      ]\n    }\n  ]\n}\n[/block]\n\n[block:api-header]\n{\n  \"type\": \"basic\",\n  \"title\": \"ARM/Raspbery Pi\"\n}\n[/block]\nDepending on which version of Raspberry PI you are using (1,2,3, Zero, etc) you will need to download the appropriate pre-compiled binary (ArmV7, ArmV8). \n\nThese instructions will show the process for a Raspberry Pi 3 (Running 2016-05-27-raspbian-jessie-lite). \n\nDownload and unpack NodeJS (ArmV7).\n\n```\nwget https://nodejs.org/dist/v7.2.0/node-v7.2.0-linux-armv7l.tar.xz\ntar -xvf node-v7.2.0-linux-armv7l.tar.xz\n```\n[block:image]\n{\n  \"images\": [\n    {\n      \"image\": [\n        \"https://files.readme.io/e73c493-Screen_Shot_2016-12-05_at_5.13.24_PM.png\",\n        \"Screen Shot 2016-12-05 at 5.13.24 PM.png\",\n        589,\n        450,\n        \"#efefef\"\n      ]\n    }\n  ]\n}\n[/block]\n\n[block:image]\n{\n  \"images\": [\n    {\n      \"image\": [\n        \"https://files.readme.io/02dc561-Screen_Shot_2016-12-05_at_5.13.59_PM.png\",\n        \"Screen Shot 2016-12-05 at 5.13.59 PM.png\",\n        617,\n        478,\n        \"#ecebea\"\n      ]\n    }\n  ]\n}\n[/block]\nInstall NodeJS into `/usr/local/`.\n\n```\ncd node-v7.2.0-linux-armv7l\nsudo cp -R * /usr/local/\n```\n\nAt this point you can test Node to confirm that you have installed the correct version.\n\n\n[block:image]\n{\n  \"images\": [\n    {\n      \"image\": [\n        \"https://files.readme.io/e277122-Screen_Shot_2016-12-05_at_5.21.47_PM.png\",\n        \"Screen Shot 2016-12-05 at 5.21.47 PM.png\",\n        617,\n        478,\n        \"#040404\"\n      ]\n    }\n  ]\n}\n[/block]\n\n[block:callout]\n{\n  \"type\": \"warning\",\n  \"title\": \"Incorrect NodeJS Version\",\n  \"body\": \"If `node -v` reports something similar to `-bash: /usr/local/bin/node: cannot execute binary file: Exec format error` or does not respond, you may have installed a version of NodeJS not compatible with your operating system architecture. You can simple repeat the install process with the correct version as it will overwrite the previously installed files.\"\n}\n[/block]\nClean up the temporary files.\n\n```\ncd ~\nrm -rf node-v7.2.0-linux-armv7l\nrm node-v7.2.0-linux-armv7l.tar.xz\n```\n\nNodeJS and NPM are now installed!\n[block:api-header]\n{\n  \"type\": \"basic\",\n  \"title\": \"Installing Node modules globally (Linux Desktop/ Embedded)\"\n}\n[/block]\nYou can install some npm packages globally, such as the [droplit.io CLI](https://www.npmjs.com/package/droplit-cli), to run them from any directory. \n\n```\nnpm install droplit-cli -g\n```\n[block:image]\n{\n  \"images\": [\n    {\n      \"image\": [\n        \"https://files.readme.io/e3786b2-Screenshot_from_2016-12-06_13-15-29.png\",\n        \"Screenshot from 2016-12-06 13-15-29.png\",\n        746,\n        452,\n        \"#040404\"\n      ]\n    }\n  ]\n}\n[/block]\nHowever, you may encounter an error like this when installing npm packages globally.\n\n[block:image]\n{\n  \"images\": [\n    {\n      \"image\": [\n        \"https://files.readme.io/7ecea56-Screenshot_from_2016-12-06_12-57-15.png\",\n        \"Screenshot from 2016-12-06 12-57-15.png\",\n        746,\n        452,\n        \"#060707\"\n      ]\n    }\n  ]\n}\n[/block]\nThere are a few ways to solve this issue according to [docs.npmjs.com](https://docs.npmjs.com/getting-started/fixing-npm-permissions). We prefer Option 2 as it does not require changing directory ownership, which may be a security risk.\n\nFirst, change the install location of global packages.\n```\nmkdir ~/.npm-global\nnpm config set prefix '~/.npm-global'\n```\n\nCreate/edit `.bashrc` to add the new directory to your `PATH`. \n\n```\necho \"export PATH=~/.npm-global/bin:\\$PATH\" >> ~/.bashrc\n```\n\nMake sure you are the owner of the `~/.npm-global/` directory, or assert your ownership using the following\n```\nchown <username>:users ~/.npm-global\n```\n\nRestart your terminal and you should be able to install and use global packages. \n[block:callout]\n{\n  \"type\": \"info\",\n  \"body\": \"The `.bash_profile` is only executed for a login-shell, whereas `.bashrc` is executed for every new shell instance\",\n  \"title\": \"You can use .bash_profile instead of .bashrc if you wish.\"\n}\n[/block]\n\n[block:api-header]\n{\n  \"type\": \"basic\",\n  \"title\": \"MIPS/OpenWRT\"\n}\n[/block]\nIf you wish to run NodeJS on an OpenWRT device and node is not already provided for your distribution or node is provided and you require a new version, you should be familiar with [OpenWrt's build system](https://wiki.openwrt.org/about/toolchain).\n\n[This article](https://github.com/netbeast/docs/wiki/Cross-Compile-Nodejs-for-OpenWrt) explains how to cross compile NodeJS for OpenWRT. \n\nOnce you have the NodeJS Binary file, transfer it to your OpenWRT device. You may need to mark it as executable. \n\n`chmod node 755`\n\nDepending on CPU speeds, we recommend downloading npm packages on a different computer and transfer them to your device. If any of your packages require compilation, you will want to compile them with your toolchain.\n\n\n[block:callout]\n{\n  \"type\": \"warning\",\n  \"body\": \"In our testing, we found that the OpenWRT kernel required FPU emulation be enabled for NodeJS to run.  Without FPU Emulation, we tested many different versions of NodeJS (0.10 - 6.0.0), and each would result in a floating point exception or not respond. When compiling your OS make sure that you have this feature enabled.\",\n  \"title\": \"FPU emulation\"\n}\n[/block]","updates":[],"order":4,"isReference":false,"hidden":false,"sync_unique":"","link_url":"","link_external":false,"_id":"59d01d530cd4dd0010294e3f","project":"568bdc1483d2061900d86cdc","version":{"version":"0","version_clean":"0.0.0","codename":"","is_stable":true,"is_beta":true,"is_hidden":false,"is_deprecated":false,"categories":["59a7236e3fe4d90025117c10","59a72eb6cb0db3001b84cfe2","59a734eb757d030019b85af8","59c0243b1b2d07001a9d2b76","59c035e42126e10028effb12","59c06c40df5b3c0010584a13","59c1a5852cabe5002641a3e7","59c2fb00b2b45c0010b7a3d7","59c32ceb9aea850010ac4130","59c32e6e190c90003cb0d12f","59c33affb2b45c0010b7aa23","59c7dfa457bd8200105444dc","59c7e975c50cf30010d712a0","59cffdef0cd4dd0010294d54","59d0622ca91a810032c8f60c","59d06733c1aec60026253065","59d174d44ac471001a07b123","59d5a5e323e6e800103defb2","59ecf1d8ed507c001c52b255","59f76fef8581dc0010593e6f","5a0c003680a35b0012c35db0","5a8358722e78660075e45f42","5a846645b5ec3a001203517e","5b258091bc7a6700033b9cb5","5b26e48e024807000315a740","5b44edff3306680003663f5c","5b468abd3d4a9e0003789111","5b468d8f3dcb6a0003c6e374","5b47b0b93d4a9e000378a33a","5b538d114ea24f00033c726f","5b6a0efe402b32000336c33f","5bba5e5d7ba7710003bd902a","5bc2703349ac3a0013eec3e5","5c351061191e2b002b4988a8","5c8b01b199b56e00440aa018"],"_id":"59a72290d61777001b6c42c3","project":"568bdc1483d2061900d86cdc","createdAt":"2017-08-30T20:39:44.453Z","releaseDate":"2017-08-30T20:39:44.453Z","__v":35},"category":{"sync":{"isSync":false,"url":""},"pages":[],"title":"Droplit Command Line","slug":"droplit-command-line","order":3,"from_sync":false,"reference":false,"_id":"5b26e48e024807000315a740","project":"568bdc1483d2061900d86cdc","version":"59a72290d61777001b6c42c3","createdAt":"2018-06-17T22:45:34.506Z","__v":0},"user":"58cc41f21751ce2f003be3b7","createdAt":"2017-09-30T22:40:19.516Z","githubsync":"","__v":0,"parentDoc":null}

Getting Started

Device Modeling With Service Classes

Platform Overview

Droplit Command Line

Edge Server

Real Time Monitoring

REST API Usage

Tutorial

Connections

Integrations

Security

Features

Account API

Assets API

Authorization API

Clients API

Conduits API

Deleted API

Devices API

Ecosystems API

Environments API

Key Policies

Schemas API

Service Classes API

Territories API

Users API

Webhooks API

Zones API

Node.js Setup: Linux/Embedded Systems

[block:api-header] { "type": "basic", "title": "x86/x64 Linux Desktop" } [/block] Head over to https://nodejs.org/en/download/ to get the download url to NodeJS. For this demonstration, NodeJS (v7.2.0) will be installed on Ubuntu 16.04.1. [block:image] { "images": [ { "image": [ "https://files.readme.io/ca26c74-Screenshot_from_2016-12-06_12-38-20.png", "Screenshot from 2016-12-06 12-38-20.png", 1052, 665, "#e7eee7" ] } ] } [/block] Next, open up **Terminal** and use `wget` to download the Linux binary. ``` wget https://nodejs.org/dist/v7.2.0/node-v7.2.0-linux-x64.tar.xz ``` [block:image] { "images": [ { "image": [ "https://files.readme.io/9b600c0-Screenshot_from_2016-12-06_12-37-28.png", "Screenshot from 2016-12-06 12-37-28.png", 746, 452, "#060607" ] } ] } [/block] Now use `tar` to unpack the file. ``` tar -xvf node-v7.2.0-linux-x64.tar.xz ``` [block:image] { "images": [ { "image": [ "https://files.readme.io/af7aaf2-Screenshot_from_2016-12-06_12-49-59.png", "Screenshot from 2016-12-06 12-49-59.png", 746, 452, "#050507" ] } ] } [/block] Install NodeJS into `/usr/local/`. ``` cd node-v7.2.0-linux-x64 sudo cp -R * /usr/local/ ``` [block:image] { "images": [ { "image": [ "https://files.readme.io/28f61d9-Screenshot_from_2016-12-06_12-52-22.png", "Screenshot from 2016-12-06 12-52-22.png", 746, 452, "#040404" ] } ] } [/block] You can check that NodeJS and NPM are installed correctly by confirming their version numbers from **Terminal** by running ``` node -v npm -v ``` [block:image] { "images": [ { "image": [ "https://files.readme.io/c2bfe01-Screenshot_from_2016-12-06_12-53-56.png", "Screenshot from 2016-12-06 12-53-56.png", 746, 452, "#040404" ] } ] } [/block] [block:api-header] { "type": "basic", "title": "ARM/Raspbery Pi" } [/block] Depending on which version of Raspberry PI you are using (1,2,3, Zero, etc) you will need to download the appropriate pre-compiled binary (ArmV7, ArmV8). These instructions will show the process for a Raspberry Pi 3 (Running 2016-05-27-raspbian-jessie-lite). Download and unpack NodeJS (ArmV7). ``` wget https://nodejs.org/dist/v7.2.0/node-v7.2.0-linux-armv7l.tar.xz tar -xvf node-v7.2.0-linux-armv7l.tar.xz ``` [block:image] { "images": [ { "image": [ "https://files.readme.io/e73c493-Screen_Shot_2016-12-05_at_5.13.24_PM.png", "Screen Shot 2016-12-05 at 5.13.24 PM.png", 589, 450, "#efefef" ] } ] } [/block] [block:image] { "images": [ { "image": [ "https://files.readme.io/02dc561-Screen_Shot_2016-12-05_at_5.13.59_PM.png", "Screen Shot 2016-12-05 at 5.13.59 PM.png", 617, 478, "#ecebea" ] } ] } [/block] Install NodeJS into `/usr/local/`. ``` cd node-v7.2.0-linux-armv7l sudo cp -R * /usr/local/ ``` At this point you can test Node to confirm that you have installed the correct version. [block:image] { "images": [ { "image": [ "https://files.readme.io/e277122-Screen_Shot_2016-12-05_at_5.21.47_PM.png", "Screen Shot 2016-12-05 at 5.21.47 PM.png", 617, 478, "#040404" ] } ] } [/block] [block:callout] { "type": "warning", "title": "Incorrect NodeJS Version", "body": "If `node -v` reports something similar to `-bash: /usr/local/bin/node: cannot execute binary file: Exec format error` or does not respond, you may have installed a version of NodeJS not compatible with your operating system architecture. You can simple repeat the install process with the correct version as it will overwrite the previously installed files." } [/block] Clean up the temporary files. ``` cd ~ rm -rf node-v7.2.0-linux-armv7l rm node-v7.2.0-linux-armv7l.tar.xz ``` NodeJS and NPM are now installed! [block:api-header] { "type": "basic", "title": "Installing Node modules globally (Linux Desktop/ Embedded)" } [/block] You can install some npm packages globally, such as the [droplit.io CLI](https://www.npmjs.com/package/droplit-cli), to run them from any directory. ``` npm install droplit-cli -g ``` [block:image] { "images": [ { "image": [ "https://files.readme.io/e3786b2-Screenshot_from_2016-12-06_13-15-29.png", "Screenshot from 2016-12-06 13-15-29.png", 746, 452, "#040404" ] } ] } [/block] However, you may encounter an error like this when installing npm packages globally. [block:image] { "images": [ { "image": [ "https://files.readme.io/7ecea56-Screenshot_from_2016-12-06_12-57-15.png", "Screenshot from 2016-12-06 12-57-15.png", 746, 452, "#060707" ] } ] } [/block] There are a few ways to solve this issue according to [docs.npmjs.com](https://docs.npmjs.com/getting-started/fixing-npm-permissions). We prefer Option 2 as it does not require changing directory ownership, which may be a security risk. First, change the install location of global packages. ``` mkdir ~/.npm-global npm config set prefix '~/.npm-global' ``` Create/edit `.bashrc` to add the new directory to your `PATH`. ``` echo "export PATH=~/.npm-global/bin:\$PATH" >> ~/.bashrc ``` Make sure you are the owner of the `~/.npm-global/` directory, or assert your ownership using the following ``` chown <username>:users ~/.npm-global ``` Restart your terminal and you should be able to install and use global packages. [block:callout] { "type": "info", "body": "The `.bash_profile` is only executed for a login-shell, whereas `.bashrc` is executed for every new shell instance", "title": "You can use .bash_profile instead of .bashrc if you wish." } [/block] [block:api-header] { "type": "basic", "title": "MIPS/OpenWRT" } [/block] If you wish to run NodeJS on an OpenWRT device and node is not already provided for your distribution or node is provided and you require a new version, you should be familiar with [OpenWrt's build system](https://wiki.openwrt.org/about/toolchain). [This article](https://github.com/netbeast/docs/wiki/Cross-Compile-Nodejs-for-OpenWrt) explains how to cross compile NodeJS for OpenWRT. Once you have the NodeJS Binary file, transfer it to your OpenWRT device. You may need to mark it as executable. `chmod node 755` Depending on CPU speeds, we recommend downloading npm packages on a different computer and transfer them to your device. If any of your packages require compilation, you will want to compile them with your toolchain. [block:callout] { "type": "warning", "body": "In our testing, we found that the OpenWRT kernel required FPU emulation be enabled for NodeJS to run. Without FPU Emulation, we tested many different versions of NodeJS (0.10 - 6.0.0), and each would result in a floating point exception or not respond. When compiling your OS make sure that you have this feature enabled.", "title": "FPU emulation" } [/block]