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added on nodes for rtdb and firestore andmade nodes pass through msg objects with as little changes as possible

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This commit is contained in:
Peter Svensson
2019-07-15 10:27:01 +02:00
parent e9fd502879
commit fefe2f2509
24 changed files with 453 additions and 48 deletions
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21
storage/storage-list.html
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@ -46,4 +46,25 @@
<script type="text/x-red" data-help-name="storage-list">
<p>A node that list files from bucket path in google cloud storage</p>
Lists the contents of files in a bucket
<p>
If "path" is defined in the payload, only files beginning with that path will be returned. I fomitted, the root level of the bucket is listed.
A path can also be deep likes this; "foo/bar/baz". "delimiter" is the charatcer used to delimit directory levels, "/" by default.
<p>
input:
{
"payload": {
"bucket": "xyzzyz123.appspot.com", // optional
"path": "directory1", // optional
"delimiter": "/" // optional
}
}
<p>
output: An array of google cloud-storage File objects. If you take this output and send it to a function which outputs a payload like this;
{"files": array_of_File_obejcts}
<p>
The storage-read module will read all file contents and output an object of filename keyed Buffer objects instead of the normal one.
</script>

5
storage/storage-list.js
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@ -1,7 +1,5 @@
let oldpath
module.exports = function(RED) {
function FirebaseAdmin(config) {
@ -37,7 +35,8 @@ module.exports = function(RED) {
console.log('got file listing')
//console.dir(files[0])
let f = files[0].filter((e)=>{ return e.name[e.name.length-1] !== '/' })
node.send({payload: {files: f}})
msg.payload = {files: f}
node.send(msg)
})
}
}.bind(this));

15
storage/storage-read.html
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@ -40,4 +40,19 @@
<script type="text/x-red" data-help-name="storage-read">
<p>A node that read files from bucket path in google cloud storage</p>
Read file data from a file at a given path under a given cloud storage bucket. The default bucket to be used can be set in the general firebase SDK settings.
If the payload defines an optional bucket property, it will override the default bucket settings.
<p>
input:
{
"payload": {
"bucket": "xyzzyz123.appspot.com",
"path": "myFile.txt"
}
}
<p>
output: Buffer object containing the binary file contents. Can easily be converted to a string by calling toString() on the Buffer.
</script>

25
storage/storage-read.js
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@ -1,7 +1,5 @@
let oldpath
module.exports = function(RED) {
function FirebaseAdmin(config) {
@ -20,8 +18,8 @@ module.exports = function(RED) {
//console.log('configuring storage-read to listen for messages')
node.on('input', function(msg) {
if(msg && msg.payload){
let path = msg.payload.path || this.path
let bucket = msg.payload.bucket || this.bucket
let path = msg.payload.path || msg.path || this.path
let bucket = msg.payload.bucket || msg.bucket || this.bucket
console.log('------------------------------ storage-read reading from bucket "'+bucket+'" path "'+path+'"')
if(msg.payload.files && msg.payload.files.length > 0){
console.log('--reading from files')
@ -36,12 +34,13 @@ module.exports = function(RED) {
console.log('storage-read got file '+file.name)
rv[file.name] = content
if(--count === 0){
console.log('all files done, sending..')
for(let x in rv){
console.log(x)
}
node.send({payload:rv})
msg.payload = rv
node.send(msg)
}
}, (fail)=>{
console.log('storage-read could not find file '+path)
msg.payload = undefined
node.send(msg)
})
})(_file)
})
@ -52,8 +51,12 @@ module.exports = function(RED) {
.file(path).download().then((file)=>{
console.log('storage-read got file')
//console.dir(file)
node.send({payload:file})
msg.payload = file
node.send(msg)
}, (fail)=>{
console.log('storage-read could not find single file '+path)
msg.payload = undefined
node.send(msg)
})
}
}

22
storage/storage-write.html
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@ -40,4 +40,26 @@
<script type="text/x-red" data-help-name="storage-write">
<p>A node that read files from bucket path in google cloud storage</p>
Writes the content of JavaScript Buffer object to a file path in a storage bucket.
<p>
input:
{
"payload": {
"bucket": "abc.appspot.com", // optional, is otherwise set as node config
"path": "foo/bar/baz.json", // optional, see above
"contents": <Buffer obj>,
"contentType": "application/json" }, // optional
"metadata": { "very":"interesting"}, // optional
"public": true, // optional
"private": false // optional
}
}
<p>
output:
{
"payload": {"success": true, "filename": "foo/bar.txt"} // ot false if an error occurred
}
</script>

20
storage/storage-write.js
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@ -17,27 +17,27 @@ module.exports = function(RED) {
//console.log('configuring storage-write to listen for messages')
node.on('input', function(msg) {
if(msg && msg.payload){
let path = msg.payload.path || this.path
let bucket = msg.payload.bucket || this.bucket
let contents = msg.payload.contents
let path = msg.payload.path || msg.path|| this.path
let bucket = msg.payload.bucket || msg.bucket || this.bucket
let contents = msg.payload.contents || msg.payload
let options ={
contentType: msg.payload.contentType || 'auto',
metadata: msg.payload.metadata || {},
private: msg.payload.private || true,
public: msg.payload.public || true,
contentType: msg.payload.contentType || msg.contentType || 'auto',
metadata: msg.payload.metadata || msg.metadata || {},
private: msg.payload.private || msg.private || true,
public: msg.payload.public || msg.public || true,
}
console.log('storage-write writing file to bucket "'+bucket+'" path "'+path+'" contents is of type '+(typeof contents))
console.dir(contents)
const myBucket = this.storage.bucket(bucket);
const file = myBucket.file(path);
file.save(contents, options, function(err) {
if (!err) {
// File written successfully.
node.send({payload:{success:true, filename: path}})
msg.payload={success:true, filename: path}
} else {
console.log('cloud storage write error: '+err)
node.send({payload:{success:false, filename: path}})
msg.payload ={success:false, filename: path}
}
node.send(msg)
});
}
}.bind(this));