How do I get a value from nested array of object?
Here is my API looks like:
{
"id": 7,
"code": "ABC123",
"name": "Abu Bakar Enterprise",
"speCompanyDetails": [
{
"id": 1,
"speCompanyId": 7,
"registrationType": "2",
"registrationNo": "12345678",
"registrationYear": 2005,
"annualIncome": 100000,
}
]
}
My objective is I want to get value for code and name but at the same time I also want to fetch value from speCompanyDetails.annualIncome
Currently my query is similar like this:
const SUPPLIER_INFO_QUERY = gql`
query SupplierInfoQuery($mainSuppId: String!) {
supplierInfo(id: $mainSuppId)
#rest(path: "services/supplier/api/spe-companies/{args.id}", method: "GET", type: "SupplierInfo") {
id
name
code
speCompanyDetails
}
}
`;
But the value for anuualIncome is undefined.
const SUPPLIER_INFO_QUERY = gql
query SupplierInfoQuery($mainSuppId: String!) {
supplierInfo(id: $mainSuppId)
#rest(path: "services/supplier/api/spe-companies/{args.id}", method: "GET", type: "SupplierInfo") {
id
name
code
speCompanyDetails{ annualIncome }
}
}
;
Related
I am working in micronaut graphQL and writing a test. The logic seems to be pretty straight forward. I am making a mock call and suppose to receive a fake response. The request been called without issues I can see it in the logs. But it seems like it is not able to parse the data and deserialize it. I am trying to make a test for a request but got deserialize error
Here is the error message
message -> Error code: GENERIC_ERROR, description: Exception getData, executionId: 770c8b9b-47cd-445e-9739-19ca0fd890c2, detailedInfo: message = Error instantiating bean of type [com.web.MyApi]: Cannot deserialize value of type `java.util.ArrayList<java.lang.String>` from Object value (token `JsonToken.START_OBJECT`)
at [Source: (String)"{
"data": {
"values": {
"formatted": [
{
"name": "2",
"lastName": "15"
}
]
}
}
}"; line: 5, column: 9] (through reference chain: com.web.DataResponse["data"]->com.web.Values["formatted"]->java.util.ArrayList[0]), cause = com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize value of type `java.util.ArrayList<java.lang.String>` from Object value (token `JsonToken.START_OBJECT`)
at [Source: (String)"{
"data": {
"metr
My test
given("my query description ") {
val scoreCardInfoRequestGraph =
"""
query{
getData(number:"6528")
{
name
lastName
}
}
""".toEscapedQuery()
`when`("posting the query") {
val dto =
client.getResponse(
myGraph,
ReportDataResponse::class.java
)
then("check the score card data formatted correctly") {
//verify
}
}
}
My graph for mocking the response
{
"data": {
"values": {
"formatted": [
{
"name": "2",
"lastName": "15"
}
]
}
}
}
And classes that I use for parsing
data class ReportDataResponse(
#JsonProperty("data")
val data: Data
)
data class Data(
#JsonProperty("values")
val values: Values
)
data class Values(
#JsonProperty("formatted")
val formatted: List<List<String>>
)
I want to check response "class_type" value has "REGION".
I test springboot API using mockMvc.
the MockHttpServletResponse is like this.
Status = 200
Error message = null
Headers = {Content-Type=[application/json;charset=UTF-8]}
Content type = application/json;charset=UTF-8
Body =
{"result":true,
"code":200,
"desc":"OK",
"data":{"total_count":15567,
"items": ...
}}
this is whole response object.
Let's take a closer look, especially items.
"items": [
{
"id": ...,
"class_type": "REGION",
"region_type": "MULTI_CITY",
"class": "com.model.Region",
"code": "AE-65GQ6",
...
},
{
"id": "...",
"class_type": "REGION",
"region_type": "CITY",
"class": "com.model.Region",
"code": "AE-AAN",
...
},
I tried using jsonPath.
#When("User wants to get list of regions, query is {string} page is {int} pageSize is {int}")
public void userWantsToGetListOfRegionsQueryIsPageIsPageSizeIs(String query, int page, int pageSize) throws Exception {
mockMvc().perform(get("/api/v1/regions" ))
.andExpect(status().is2xxSuccessful())
.andDo(print())
.andExpect(jsonPath("$.data", is(notNullValue())))
.andExpect(jsonPath("$.data.total_count").isNumber())
.andExpect(jsonPath("$.data.items").isArray())
.andExpect(jsonPath("$.data.items[*].class_type").value("REGION"));
log.info("지역 목록");
}
but
jsonPath("$.data.items[*].class_type").value("REGION")
return
java.lang.AssertionError: Got a list of values ["REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION","REGION"] instead of the expected single value REGION
I want to just check "$.data.items[*].class_type" has "REGION".
How can I change this?
One option would be to check whether you have elements in your array which have the class_type equal to 'REGION':
public static final String REGION = "REGION";
mockMvc().perform(get("/api/v1/regions"))
.andExpect(jsonPath("$.data.items[?(#.class_type == '" + REGION + "')]").exists());
This is my JSON data, which is stored into cosmos db
{
"id": "e064a694-8e1e-4660-a3ef-6b894e9414f7",
"Name": "Name",
"keyData": {
"Keys": [
"Government",
"Training",
"support"
]
}
}
Now I want to write a query to eliminate the keyData and get only the Keys (like below)
{
"userid": "e064a694-8e1e-4660-a3ef-6b894e9414f7",
"Name": "Name",
"Keys" :[
"Government",
"Training",
"support"
]
}
So far I tried the query like
SELECT c.id,k.Keys FROM c
JOIN k in c.keyPhraseBatchResult
Which is not working.
Update 1:
After trying with the Sajeetharan now I can able to get the result, but the issue it producing another JSON inside the Array.
Like
{
"id": "ee885fdc-9951-40e2-b1e7-8564003cd554",
"keys": [
{
"serving": "Government"
},
{
"serving": "Training"
},
{
"serving": "support"
}
]
}
Is there is any way that extracts only the Array without having key value pari again?
{
"userid": "e064a694-8e1e-4660-a3ef-6b894e9414f7",
"Name": "Name",
"Keys" :[
"Government",
"Training",
"support"
]
}
You could try this one,
SELECT C.id, ARRAY(SELECT VALUE serving FROM serving IN C.keyData.Keys) AS Keys FROM C
Please use cosmos db stored procedure to implement your desired format based on the #Sajeetharan's sql.
function sample() {
var collection = getContext().getCollection();
var isAccepted = collection.queryDocuments(
collection.getSelfLink(),
'SELECT C.id,ARRAY(SELECT serving FROM serving IN C.keyData.Keys) AS keys FROM C',
function (err, feed, options) {
if (err) throw err;
if (!feed || !feed.length) {
var response = getContext().getResponse();
response.setBody('no docs found');
}
else {
var response = getContext().getResponse();
var map = {};
for(var i=0;i<feed.length;i++){
var keyArray = feed[i].keys;
var array = [];
for(var j=0;j<keyArray.length;j++){
array.push(keyArray[j].serving)
}
feed[i].keys = array;
}
response.setBody(feed);
}
});
if (!isAccepted) throw new Error('The query was not accepted by the server.');
}
Output:
I have an optional String field, notes, that is sometimes empty. If it's empty I want to insert null, otherwise I want to insert the string.
Here is my resolver -
{
"version" : "2017-02-28",
"operation": "Invoke",
#set($id = $util.autoId())
#set($notes = $util.defaultIfNullOrEmpty($context.arguments.notes, 'null'))
"payload": {
"sql":"INSERT INTO things VALUES ('$id', :NOTES)",
"variableMapping": {
":NOTES" : $notes
},
"responseSQL": "SELECT * FROM things WHERE id = '$id'"
}
}
With this graphql
mutation CreateThing{
createThing() {
id
notes
}
}
I get -
{
"data": {
"createRoll": {
"id": "6af68989-0bdc-44e2-8558-aeb4c8418e93",
"notes": "null"
}
}
}
when I really want null without the quotes.
And with this graphql -
mutation CreateThing{
createThing(notes: "Here are some notes") {
id
notes
}
}
I get -
{
"data": {
"createThing": {
"id": "6af68989-0bdc-44e2-8558-aeb4c8418e93",
"notes": "Here are some notes"
}
}
}
which is what I want.
How do I get a quoteless null and a quoted string into the same field?
TL;DR you should use $util.toJson() to print the $context.arguments.notes correctly. Replace your $notes assignment with
#set($notes = $util.toJson($util.defaultIfNullOrEmpty($context.arguments.notes, null)))
Explanation:
The reason is VTL prints whatever the toString() method returns and your call to
$util.defaultIfNullOrEmpty($context.arguments.notes, 'null') will return the string "null", which will be printed as "null".
If you replace with $util.defaultIfNullOrEmpty($context.arguments.notes, null) then it will return a null string. However, VTL will print $notes because that is the way it handles null references. In order to print null, which is the valid JSON representation of null, we have to serialize it to JSON. So the correct statement is:
#set($notes = $util.toJson($util.defaultIfNullOrEmpty($context.arguments.notes, null)))
Full test:
I'm assuming you started with the RDS sample provided in the AWS AppSync console and modified it. To reproduce, I updated the content field in the Schema to be nullable:
type Mutation {
...
createPost(author: String!, content: String): Post
...
}
type Post {
id: ID!
author: String!
content: String
views: Int
comments: [Comment]
}
and I modified the posts table schema so content can also be null there: (inside the Lambda function)
function conditionallyCreatePostsTable(connection) {
const createTableSQL = `CREATE TABLE IF NOT EXISTS posts (
id VARCHAR(64) NOT NULL,
author VARCHAR(64) NOT NULL,
content VARCHAR(2048),
views INT NOT NULL,
PRIMARY KEY(id))`;
return executeSQL(connection, createTableSQL);
}
This is the request template for the createPost mutation:
{
"version" : "2017-02-28",
"operation": "Invoke",
#set($id = $util.autoId())
"payload": {
"sql":"INSERT INTO posts VALUES ('$id', :AUTHOR, :CONTENT, 1)",
"variableMapping": {
":AUTHOR" : "$context.arguments.author",
":CONTENT" : $util.toJson($util.defaultIfNullOrEmpty($context.arguments.content, null))
},
"responseSQL": "SELECT id, author, content, views FROM posts WHERE id = '$id'"
}
}
and response template:
$util.toJson($context.result[0])
The following query:
mutation CreatePost {
createPost(author: "Me") {
id
author
content
views
}
}
returns:
{
"data": {
"createPost": {
"id": "b42ee08c-956d-4b89-afda-60fe231e86d7",
"author": "Me",
"content": null,
"views": 1
}
}
}
and
mutation CreatePost {
createPost(author: "Me", content: "content") {
id
author
content
views
}
}
returns
{
"data": {
"createPost": {
"id": "c6af0cbf-cf05-4110-8bc2-833bf9fca9f5",
"author": "Me",
"content": "content",
"views": 1
}
}
}
We were looking into the same issue. For some reason, the accepted answer does not work for us. Maybe because it's a beta feature and there is a new resolver version (2018-05-29 vs 2017-02-28, changes here: Resolver Mapping Template Changelog).
We use this for the time being using NULLIF():
{
"version": "2018-05-29",
"statements": [
"INSERT INTO sales_customers_addresses (`id`, `customerid`, `type`, `company`, `country`, `email`) VALUES (NULL, :CUSTOMERID, :TYPE, NULLIF(:COMPANY, ''), NULLIF(:COUNTRY, ''), :EMAIL)"
],
"variableMap": {
":CUSTOMERID": $customerid,
":TYPE": "$type",
":COMPANY": "$util.defaultIfNullOrEmpty($context.args.address.company, '')",
":COUNTRY": "$util.defaultIfNullOrEmpty($context.args.address.country, '')",
":EMAIL": "$context.args.address.email"
}
}
The schema:
type User {
id: ID!
createdCurricula: [Curriculum]
}
type Curriculum {
id: ID!
title: String!
creator: User!
}
The resolver to query all curricula of a given user:
{
"version" : "2017-02-28",
"operation" : "Query",
"query" : {
## Provide a query expression. **
"expression": "userId = :userId",
"expressionValues" : {
":userId" : {
"S" : "${context.source.id}"
}
}
},
"index": "userIdIndex",
"limit": #if(${context.arguments.limit}) ${context.arguments.limit} #else 20 #end,
"nextToken": #if(${context.arguments.nextToken}) "${context.arguments.nextToken}" #else null #end
}
The response map:
{
"items": $util.toJson($context.result.items),
"nextToken": #if(${context.result.nextToken}) "${context.result.nextToken}" #else null #end
}
The query:
query {
getUser(id: "0b6af629-6009-4f4d-a52f-67aef7b42f43") {
id
createdCurricula {
title
}
}
}
The error:
{
"data": {
"getUser": {
"id": "0b6af629-6009-4f4d-a52f-67aef7b42f43",
"createdCurricula": null
}
},
"errors": [
{
"path": [
"getUser",
"createdCurricula"
],
"locations": null,
"message": "Can't resolve value (/getUser/createdCurricula) : type mismatch error, expected type LIST"
}
]
}
The CurriculumTable has a global secondary index titled userIdIndex, which has userId as the partition key.
If I change the response map to this:
$util.toJson($context.result.items)
The output is the following:
{
"data": {
"getUser": {
"id": "0b6af629-6009-4f4d-a52f-67aef7b42f43",
"createdCurricula": null
}
},
"errors": [
{
"path": [
"getUser",
"createdCurricula"
],
"errorType": "MappingTemplate",
"locations": [
{
"line": 4,
"column": 5
}
],
"message": "Unable to convert \n{\n [{\"id\":\"87897987\",\"title\":\"Test Curriculum\",\"userId\":\"0b6af629-6009-4f4d-a52f-67aef7b42f43\"}],\n} to class java.lang.Object."
}
]
}
If I take that string and run it through a console.log in my frontend app, I get:
{
[{"id":"2","userId":"0b6af629-6009-4f4d-a52f-67aef7b42f43"},{"id":"1","userId":"0b6af629-6009-4f4d-a52f-67aef7b42f43"}]
}
That's clearly an object. How do I make it... not an object, so that AppSync properly reads it as a list?
SOLUTION
My response map had a set of curly braces around it. I'm pretty sure that was placed there in the generator by Amazon. Removing them fixed it.
I think I'm not seeing the complete view of your schema, I was expecting something like:
schema {
query: Query
}
Where Query is RootQuery, in fact you didn't share us your Query definition. Assuming you have the right Query definition. The main problem is in your response template.
> "items": $util.toJson($context.result.items)
This means that you are passing a collection named: *"items"* to Graphql query engine. And you are referring this collection as "createdCurricula". So solve this issue your response-mapping-template is the right place to fix. How? just replace the above line with the following.
"createdCurricula": $util.toJson($context.result.items),
Please the main thing to note here is, the mapping template is a bridge between your datasources and qraphql, feel free to make any computation, or name mapping but don't forget that object names in that response json are the one should match in schema/query definition.
Thanks.
Musema
change to result type to $util.toJson($ctx.result.data.posts)
The exception msg says that it expected a type list.
Looking at:
{
[{"id":"2","userId":"0b6af629-6009-4f4d-a52f-67aef7b42f43"},{"id":"1","userId":"0b6af629-6009-4f4d-a52f-67aef7b42f43"}]
}
I don't see that createdCurricula is a LIST.
What is currently in DDB is:
"id": "0b6af629-6009-4f4d-a52f-67aef7b42f43",
"createdCurricula": null