DocumentDB: bulkImport Stored Proc - Getting 400 Error on Array/JSON issue - json

Question

I'm simply trying to execute the standard example bulkImport sproc for documentDB API and I can't seem to pass it an array of objects. I always get 400 errors despite the documentation giving clear direction to send an array of objects
.. very frustrating.
Additional details: Even if I wrap the array in an object with the array under a property of 'items' and include it in my sproc it still errors out saying the same bad request, needs to be an object or JSON-serialized. When I try to do JSON.stringify(docs) before sending it fails to parse on the other side.
Bad Request: The document body must be an object or a string representing a JSON-serialized object.
bulkInsert.js:
https://github.com/Azure/azure-documentdb-js-server/blob/master/samples/stored-procedures/BulkImport.js
My Code (using documentdb-util for async):
execProc(docs, insertProc);
async function execProc(docs, insertProc){
let database = await dbUtil.database('test');
let collection = await dbUtil.collection(database, 'test');
let procInstance = await dbUtil.storedProcedure(collection, insertProc);
try{
let result = await dbUtil.executeStoredProcedure(procInstance, docs);
console.log(result);
} catch(e){
console.log(e.body)
}
}
Header
Object {Cache-Control: "no-cache", x-ms-version: "2017-11-15",
User-Agent: "win32/10.0.16299 Nodejs/v8.9.0 documentdb-nodejs-s…",
x-ms-date: "Mon, 11 Dec 2017 07:32:29 GMT",
Accept:"application/json"
authorization: myauth
Cache-Control:"no-cache"
Content-Type:"application/json"
User-Agent:"win32/10.0.16299 Nodejs/v8.9.0 documentdb-nodejs-sdk/1.14.1"
x-ms-date:"Mon, 11 Dec 2017 07:32:29 GMT"
x-ms-version:"2017-11-15"
Path
"/dbs/myDB/colls/myColl/sprocs/myBulkInsert"
Params
Array(3) [Object, Object, Object]
length:3
0:Object {id: "0001", type: "donut", name: "Cake", …}
1:Object {id: "0002", type: "donut", name: "Raised", …}
2:Object {id: "0003", type: "donut", name: "Old Fashioned", …}
[{
"id": "0001",
"type": "donut",
"name": "Cake",
"ppu": 0.55
},
{
"id": "0002",
"type": "donut",
"name": "Raised",
"ppu": 0.35
},
{
"id": "0003",
"type": "donut",
"name": "Old Fashioned",
"ppu": 0.25
}]

Answer 1

The "docs" must be an array of array of params, otherwise, the procedure executor will treat them as multiple params of the procedure, not a single-array-param.

Answer 2

the following code works when call storedProcedure to pass argument with array type.
JS:
var docs = [{'id':1},{'id':2}];
executeStoredProcedure(proc, [docs])
C#
var docs = new[] {new MyDoc{id=1, source="abc"}, new MyDoc{id=2, source="abc"}];
dynamic[] args = new dynamic[] {docs};
ExecuteStoredProcedureAsync<int>(
procLink,
new RequestOptions {PartitionKey = new PartitionKey("abc")},
args);
NOTE: you must ensure the 'docs' have the same partition key, and pass partion key in RequestionOptions

Answer 3

I had the same problem. I was able to get it to work by Stringify the Array and parse it in the stored procedure. I opened an issue on the github where that code originated as well. Below is what worked for me. Good luck.
---- Stringify Array
var testArr = []
for (var i = 0; i < 50; i++) {
testArr.push({
"id": "test" + i
})
}
var testArrStr = JSON.stringify(testArr)
//pass testArrStr to stored procedure and parse in stored procedure
---- Slightly altered original BulkImport
exports.storedProcedure = {
id: "bulkImportArray",
serverScript:function bulkImportArray(docs) {
var context = getContext();
var collection = context.getCollection();
var docsToCreate = JSON.parse(docs)
var count = 0;
var docsLength = docsToCreate.length;
if (docsLength == 0) {
getContext().getResponse().setBody(0);
}
var totals = ""
function insertDoc(){
var msg = " count=" + count+" docsLength=" +docsLength + " typeof docsToCreate[]=" + typeof docsToCreate+ " length =" + docsToCreate.length
if(typeof docsToCreate[count] != 'undefined' ) {
collection.createDocument(collection.getSelfLink(),
docsToCreate[count],
function (err, documentCreated) {
if (err){
// throw new Error('Error' + err.message);
getContext().getResponse().setBody(count + " : " + err);
}else{
if (count < docsLength -1) {
count++;
insertDoc();
getContext().getResponse().setBody(msg);
} else {
getContext().getResponse().setBody(msg);
}
}
});
}else{
getContext().getResponse().setBody(msg);
}
}
insertDoc()
}
}
If you want to test it in the portal Script Explorer I had to create an escaped string i.e.
var testArr = []
for(var i=200; i<250; i++){
testArr.push({"id":"test"+i})
}
var testArrStr = JSON.stringify(testArr)
console.log('"'+testArrStr.replace(/\"/g,'\\"') + '"')