I'm trying to get a very basic oauth example to work in a node.js app with express and googleapis. Upon running the application it throws a TypeError inside the UUID dependency which is included with the googleapis-common module. I'm getting a bit frustrated at this point because I have not been able to find any additional information about this to allow me to resolve it myself.
Take a look at the screenshot below for the specifics:
Here it is in text if that makes things easier:
Exception has occurred: TypeError: Cannot assign to read only property 'name' of function 'function generateUUID(value, namespace, buf, offset) {
if (typeof value === 'string') {
value = strin...<omitted>... }'
at _default (C:\Users\ficar\OneDrive\Desktop\Frontend\node_modules\googleapis-common\node_modules\uuid\dist\v35.js:71:23)
at Object.<anonymous> (C:\Users\ficar\OneDrive\Desktop\Frontend\node_modules\googleapis-common\node_modules\uuid\dist\v3.js:14:27)
at Module._compile (internal/modules/cjs/loader.js:1137:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
at Module.load (internal/modules/cjs/loader.js:985:32)
at Function.Module._load (internal/modules/cjs/loader.js:878:14)
at Module.require (internal/modules/cjs/loader.js:1025:19)
at require (internal/modules/cjs/helpers.js:72:18)
at Object.<anonymous> (C:\Users\ficar\OneDrive\Desktop\Frontend\node_modules\googleapis-common\node_modules\uuid\dist\index.js:63:34)
at Module._compile (internal/modules/cjs/loader.js:1137:30)
The file this is being thrown in is called "v35.js".
My initial thought is that I must be missing some additional library that interprets the logic throwing the error differently. Eager to learn more about this and find a resolution.
Looks like this is how the uuid module works
node_modules/uuid/dist/v35.js
function _default(name, version, hashfunc) {
function generateUUID(value, namespace, buf, offset) {
...
} // Function#name is not settable on some platforms (#270)
try {
generateUUID.name = name; // eslint-disable-next-line no-empty
} catch (err) {} // For CommonJS default export support
...
Authors warn (comment on line 4), that name property may not be settable and bypass it with empty catch
Related
i am having a hell of time trying to set up a custom repl app. I did a bunch of googling and managed to wrange the code below and got a working repl shell.
script.js
const repl = require("repl")
function evaluate(command, context, filename, callback) {
callback(null, command)
}
repl.start({
prompt: ": ",
eval: evaluate
});
so after getting this prototype working i decided to add a module to split the routing of the command processing. I made a tracker.js module and required it in my script.js
tracker.js
export default class Tracker {
static Process(command) {
console.log(command)
}
}
script.js added the require statement.
const repl = require("repl")
const Tracker = require("./tracker")
function evaluate(command, context, filename, callback) {
callback(null, command)
}
repl.start({
prompt: ": ",
eval: evaluate
});
after i reran this i got an error saying,
SyntaxError: Unexpected token 'export'
at Object.compileFunction (node:vm:352:18)
at wrapSafe (node:internal/modules/cjs/loader:1031:15)
at Module._compile (node:internal/modules/cjs/loader:1065:27)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:822:12)
at Module.require (node:internal/modules/cjs/loader:1005:19)
at require (node:internal/modules/cjs/helpers:102:18)
at Object.<anonymous> (C:\Users\e212034\repository\repl\script.js:2:17)
at Module._compile (node:internal/modules/cjs/loader:1101:14)
PS C:\Users\e212034\repository\repl>
so i went back to google and found some tips saying to add type:module to the package.json. so i did this and reran and now i get this error,
ReferenceError: require is not defined in ES module scope, you can use import instead
This file is being treated as an ES module because it has a '.js' file extension and 'C:\Users\e212034\repository\repl\package.json' contains "type": "module". To treat it as a CommonJS script, rename it to use the '.cjs' file extension.
at file:///C:/Users/e212034/repository/repl/script.js:1:14
at ModuleJob.run (node:internal/modules/esm/module_job:185:25)
at async Promise.all (index 0)
at async ESMLoader.import (node:internal/modules/esm/loader:281:24)
at async loadESM (node:internal/process/esm_loader:88:5)
at async handleMainPromise (node:internal/modules/run_main:65:12)
PS C:\Users\e212034\repository\repl>
i tried changing the module to .mjs no luck. i tried changing the type to commonjs and the module to .cjs no luck on either.
any ideas on how to resolve this issue?
For
const systemRegex = /^system\./,
endOfLine = require('os').EOL,
EJSON = require('mongodb-extjson');
I got error at the line EJSON = require('mongodb-extjson'), details is as follows:
TypeError [ERR_INVALID_ARG_TYPE]: The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received function hidden
at Function.from (buffer.js:331:9)
at fnv1a32 (/hdd/all_nlus/nlu_platform_bundle/backend/node_modules/mongodb-extjson/node_modules/bson/lib/bson/fnv1a.js:21:25)
at fnv1a24 (/hdd/all_nlus/nlu_platform_bundle/backend/node_modules/mongodb-extjson/node_modules/bson/lib/bson/fnv1a.js:39:18)
at Object.<anonymous> (/hdd/all_nlus/nlu_platform_bundle/backend/node_modules/mongodb-extjson/node_modules/bson/lib/bson/objectid.js:14:20)
at Module._compile (internal/modules/cjs/loader.js:1138:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1158:10)
at Module.load (internal/modules/cjs/loader.js:986:32)
at Function.Module._load (internal/modules/cjs/loader.js:879:14)
at Module.require (internal/modules/cjs/loader.js:1026:19)
at require (internal/modules/cjs/helpers.js:72:18)
at Object.<anonymous> (/hdd/all_nlus/nlu_platform_bundle/backend/node_modules/mongodb-extjson/node_modules/bson/lib/bson/bson.js:7:14)
at Module._compile (internal/modules/cjs/loader.js:1138:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1158:10)
at Module.load (internal/modules/cjs/loader.js:986:32)
at Function.Module._load (internal/modules/cjs/loader.js:879:14)
at Module.require (internal/modules/cjs/loader.js:1026:19) {
code: 'ERR_INVALID_ARG_TYPE'
}
How to resolve it?
It is because of the Node.js version.
Node.js v10.15.1: Works!
Node.js v12.8.1: Error loading the module
I am not sure about the cause, but I would guess that it is because Node.js' packaging mechanism has undergone a change. And mongodb-extjson has not been modified to adhere to the new mechanism. As mentioned in their GitHub repository, it is unlikely to be fixed as it is no longer being maintained.
You have the following choices:
Downgrade to v10 of Node.js, OR
Use the recommended bson module instead:
$ npm install bson
const { EJSON } = require('bson');
const data = '{ "someId": { "$oid": "5ec7cb151a1878fbefce4119" } }'
const doc = EJSON.parse(data, { relaxed: false });
console.log(doc.someId._bsontype)
// Should print 'ObjectID'
Note the difference in the EJSON option between the two modules. Whereas in mongodb-extjson the default is strict, in bson the default is relaxed.
I follow a simple try … catch pattern for my SQLite queries
try {
… run query and get result …
}
catch (error) {
console.log(error);
}
On error, I get a nice stacktrace like this
SqliteError: no such column:
at getData (/Users/punkish/Projects/zenodeo/bin/facets.js:8:25)
at Object.<anonymous> (/Users/punkish/Projects/zenodeo/bin/facets.js:23:1)
at Module._compile (internal/modules/cjs/loader.js:1156:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1176:10)
at Module.load (internal/modules/cjs/loader.js:1000:32)
at Function.Module._load (internal/modules/cjs/loader.js:899:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)
at internal/main/run_main_module.js:18:47
I've written my own small logging routine so I can embellish the messages with colors (using chalk) and some extra info I find helpful, now I have
try {
… run query and get result …
}
catch (error) {
mylogger(error);
}
Except, now I just get the following
SqliteError: no such column:
And no, the mylogger is not eating/chopping away the extra bits. I've added the following to it
if (typeof error === 'object') {
log('type: object');
log(`error: ${JSON.stringify(error)}`)
}
and I get
type: object
error: SqliteError: no such column:
Seems like the stacktrace is streaming, and all of it doesn't go to mylogger. In any case, how can I get all of it?
I am using Winston and I encountered the same issue before. I'm using .constructor instead of instanceOf to determine the data type which might be the best practice. But my code here might be of some value to you:
winston.format.printf(info => {
if (info.message.constructor === Object || Error) {
if (info.stack === undefined) {
return `${info.timestamp} [${info.label}] ${info.level}: ${JSON.stringify(info.message, null, 1)}`;
} else {
return `${info.timestamp} [${info.label}] ${info.level}: ${info.message} Stack: ${info.stack}`;
}
} else {
return `${info.timestamp} [${info.label}] ${info.level}: ${info.message}`;
}
})
);
I installed various node.js versions with nvm and tried -harmony flag to make generator functions work with yield keyword but I'm getting all kinds of errors when the server starts. One of them is below:
/home/ubuntu/workspace/node_modules/hapi/node_modules/joi/lib/object.js:310
throw castErr;
^
TypeError: Cannot read property '_items' of undefined
at /home/ubuntu/workspace/node_modules/hapi/node_modules/topo/lib/index.js:39:22
at Array.forEach (native)
at internals.Topo.add (/home/ubuntu/workspace/node_modules/hapi/node_modules/topo/lib/index.js:36:24)
at internals.Object.keys (/home/ubuntu/workspace/node_modules/hapi/node_modules/joi/lib/object.js:301:18)
at internals.root.root.object (/home/ubuntu/workspace/node_modules/hapi/node_modules/joi/lib/index.js:71:72)
at Object.<anonymous> (/home/ubuntu/workspace/node_modules/hapi/node_modules/catbox/lib/policy.js:255:24)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
Is there something special I need to do to use the yield keyword?
UPDATE: I updated nodejs to 5.4.1 and the errors are gone. But I can't use the yield function.
Here's a code:
var nodes = yield Db.node.find({ type: 'root' });
return reply.success(nodes);
And here's the error I get:
var nodes = yield Db.node.find({ type: 'root' });
^^
SyntaxError: Unexpected identifier
You'll need a plugin for hapi that allows you to run a generator as handler. Something like https://github.com/ide/hapi-async-handler
I use the jspm in my project.
But I need the server side nodejs file to execute some instruction.
For example, I need to use the lodash and found the guide in the https://github.com/systemjs/systemjs
var System = require('jspm').Loader();
System.import('lodash').then(function (_) { console.log(_); });
However, I want to use the lodash globally.
Just like
var _ = System.import('lodash');
var myArr = _.map([1, 2, 3], function(n) { return n * 3; });
It will show
TypeError: _.map is not a function
at Object. (/Users/joyfeel/javascript/jspm-test/index.js:49:16)
at Module._compile (module.js:435:26)
at normalLoader (/usr/local/lib/node_modules/babel/node_modules/babel-core/lib/api/register/node.js:199:5)
at Object.require.extensions.(anonymous function) [as .js] (/usr/local/lib/node_modules/babel/node_modules/babel-core/lib/api/register/node.js:216:7)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:311:12)
at Function.Module.runMain (module.js:467:10)
at Object. (/usr/local/lib/node_modules/babel/lib/_babel-node.js:144:25)
at Module._compile (module.js:435:26)
at Object.Module._extensions..js (module.js:442:10)
Why does the lodash only be used in .then scope?
Could anyone tell me how to figure it out? Suppose we want to System.import other modules and use it?
_ can only be accessed in the scope of then because System.import always returns a Promise.
Therefore you have to wait for the Promise to be resolved before you can access its result.
Anyway i would not recommend you to use lodash globally.
But when you really want to use _ globally you can do something like:
System.import('lodash').then(function(_) {
GLOBAL._ = _;
});
Still you have to make sure that all code that uses GLOBAL._ waits till the Promise from the lodash import is resolved.
But again: i would discourage you doing it that way but recommend that you import lodash in every module that needs it.