Is it possible to get rid of the 'data' ,'nodes', ... fields? - graphql

I have the following GraphQL query:
{
allForums {
nodes {
name,
topics: topicsByForumId(orderBy: [TITLE_ASC]) {
nodes {
title
}
}
}
}
}
This returns something as following:
{
"data": {
"allForums": {
"nodes": [
{
"name": "1",
"topics": {
"nodes": [
{
"title": "a"
},
{
"title": "b"
}
]
}
}
]
}
}
}
I would like to get the result below:
[
{
"name": "1",
"topics": [
{
"title": "a"
},
{
"title", "b"
}
]
}
]
Is it possible to get rid of the data, nodes, ... fields? Is that something that can be done within GraphQL, or should I do that in my service implementation?
I am using PostGraphile v4.2.0 as a GraphQL implementation, on top of PostgreSQL v11.

As indicated in the docs, you can expose a simpler interface for connections, or eliminate the default Relay-based connection interface altogether:
If you prefer a simpler list interface over GraphQL connections then you can enable that either along-side our connections (both) or exclusively (only) using our --simple-collections [omit|both|only] option.

Related

Incorrectly selected data in the query

Only articles that contain the EmailMarketing tag are needed.
I'm probably doing the wrong search on the tag, since it's an array of values, not a single object, but I don't know how to do it right, I'm just learning graphql. Any help would be appreciated
query:
query {
enArticles {
title
previewText
tags(where: {name: "EmailMarketing"}){
name
}
}
}
result:
{
"data": {
"enArticles": [
{
"title": "title1",
"previewText": "previewText1",
"tags": [
{
"name": "EmailMarketing"
},
{
"name": "Personalization"
},
{
"name": "Advertising_campaign"
}
]
},
{
"title": "title2",
"previewText": "previewText2",
"tags": [
{
"name": "Marketing_strategy"
},
{
"name": "Marketing"
},
{
"name": "Marketing_campaign"
}
]
},
{
"title": "article 12",
"previewText": "article12",
"tags": []
}
]
}
}
I believe you first need to have coded an equality operator within your GraphQL schema. There's a good explanation of that here.
Once you add an equality operator - say, for example _eq - you can use it something like this:
query {
enArticles {
title
previewText
tags(where: {name: {_eq: "EmailMarketing"}}){
name
}
}
}
Specifically, you would need to create a filter and resolver.
The example here may help.

GraphQL - How to get field types from the retrieved schema?

Knowing the schema (fetched via getIntrospectionQuery), how could I get the type of a particular field?
For example, say I run this query:
query {
User {
name
lastUpdated
friends {
name
}
}
}
and get this result:
{
"data": {
"User": [
{
"name": "alice",
"lastUpdated": "2018-02-03T17:22:49+00:00",
"friends": []
},
{
"name": "bob",
"lastUpdated": "2017-09-01T17:08:49+00:00",
"friends": [
{
"name": "eve"
}
]
}
]
}
}
I'd like to know the types of the fields and construct something like this:
{
"name": "String",
"lastUpdated": "timestamptz",
"friends": "[Friend]"
}
How could I do that without extra requests to the server?
After retrieving the schema, you can build it into a JSON object (if your graphql framework does not do it already for you).
Using a JSON parser, you can retrieve the the types of each field.
I will not enter into the detail, as it would depend on the technology your are using.

prismic graphql querying single user

I'm trying to figure out how to query a single user from graphql schema by id. I'm using the graphiql tool and I'm able to get all Users.
{
allPrismicUsers {
edges {
node {
id
data {
name
}
}
}
}
}
Outputs :
{
"data": {
"allPrismicUsers”: {
"edges": [
{
"node": {
"id": "Prismic__User__WzKFwywAABmiZk_4",
"data": {
"name": “John Doe”
}
}
},
{
"node": {
"id": "Prismic__User__WzKDZywAABmiZkYp",
"data": {
"name": “Jane Doe“
}
}
},
{
"node": {
"id": "Prismic__User__WzKGDiwAAJSiZlFL",
"data": {
"name": “Cat Doe”
}
}
}
]
}
}
}
I also have prismicUser() on the schema
query {
prismicUser {
id
data {
name
}
}
}
Output:
{
"data": {
"prismicUser": {
"id": "Prismic__User__WzKGDiwAAJSiZlFL",
"data": {
"name": "Cat Doe"
}
}
}
}
I'm trying to query a user based on a specific id but not sure if I'm querying the wrong way.
I tried this.
query {
prismicLocation(id: "Prismic__User__WzKDZywAABmiZkYp") {
data {
name
}
}
}
I get an error
{ "errors": [
{
"message": "Argument \"id\" has invalid value \"Prismic__User__WzKDZywAABmiZkYp\".\nExpected
\"prismicUserIdQueryString_2\", found not an object.",
"users": [
{
"line": 25,
"column": 23
}
]
} ] }
How can I call a specific user based on their id ?
According to the Gatsby GraphQL reference, Gatsby allows you to filter results by any field in GraphQL (using operators such as eq, ne, etc.)
The gatsby-source-prismic plugin provides a field called prismicId (i.e. W1syKSIAAAzdN1Jg).
Here is an example query:
{
prismicUser(prismicId:{eq:"WzKDZywAABmiZkYp"}) {
data {
name
}
}
}
But you can also query by id:
prismicUser(id:{eq:"Prismic__User__WzKDZywAABmiZkYp"})

How to filter GraphQL results by a descendent without edges?

I just started looking at GraphQL and I am wondering if there is a way to filter results that don't have any nodes. Here is a relatively simple example query:
query {
organization(login:"GitHub") {
repositories(first: 20) {
edges {
node {
name
pullRequests(first: 5, states: OPEN){
edges {
node {
title
author{
login
}
updatedAt
}
}
}
}
}
}
}
}
and here is a subset of the results that query returns:
{
"data": {
"organization": {
"repositories": {
"edges": [
{
"node": {
"name": "gitignore",
"pullRequests": {
"edges": [
{
"node": {
"title": "Create new CodeComposerStudio.gitignore",
"author": {
"login": "wolf99"
},
"updatedAt": "2017-07-26T20:31:53Z"
}
},
{
"node": {
"title": "Create PVS.gitignore",
"author": {
"login": "cesaramh"
},
"updatedAt": "2017-05-01T19:42:07Z"
}
},
{
"node": {
"title": "gitignore for Magic Software Enterprises product xpa ",
"author": {
"login": "tommes"
},
"updatedAt": "2017-05-01T19:41:53Z"
}
},
{
"node": {
"title": "Create PSoC.gitignore",
"author": {
"login": "dbrwn"
},
"updatedAt": "2017-05-01T19:41:39Z"
}
},
{
"node": {
"title": "add ThinkPHP gitignore file",
"author": {
"login": "swumao"
},
"updatedAt": "2017-05-01T19:40:53Z"
}
}
]
}
}
},
{
"node": {
"name": "dmca",
"pullRequests": {
"edges": []
}
}
}
]
}
}
}
}
So I'd like to know if there is a way to modify my query so that it would not return the node named dmca since there are no edges on pullRequests.
If you are using githubs graphql api than it seems that there is no way to filter those edges,
But if you're implementing the graphql server then it's possible to know what the edges nodes are and thus filter it in the edge resolver
According to GitHub repositories documentation does not allow that kind of filtering.
first: Int
Returns the first n elements from the list.
after: String
Returns the elements in the list that come after the specified cursor.
last: Int
Returns the last n elements from the list.
before: String
Returns the elements in the list that come before the specified cursor.
privacy: RepositoryPrivacy
If non-null, filters repositories according to privacy
orderBy: RepositoryOrder
Ordering options for repositories returned from the connection
affiliations: [RepositoryAffiliation]
Affiliation options for repositories returned from the connection
isLocked: Boolean
If non-null, filters repositories according to whether they have been locked
isFork: Boolean
If non-null, filters repositories according to whether they are forks of another repository
So I don't think that can be done.

RestHeart passing multiple parametrs in aggregation

Basically I am trying to use REST hreat to create two variables issuerId and sectionName. I am trying to get data from the URI mentioned below
http://ftc-wbpyrdb201:8080/statdata/InsStatData/_aggrs/getDataByIssuerAndSectionName?avars={"issuerId":19038},{"sectionName":"ASSETS"}
My aggregation definition is a below
{"$push" : {
"aggrs":
{
"type": "pipeline",
"uri": "getDataByIssuerAndSectionName",
"stages": [
{
"_$match": {
"_$and": [
{"issuerId": {"_$var": "issuerId" }},
{
"sectionName": {"_$var": "sectionName"}
}
]
}
},
{
"_$unwind": "$sections"
},
{
"_$unwind": "$sections.data"
},
{
"_$unwind": "$sections.data.values"
},
{
"_$match": {
"_$and": [
{"issuerId": {"_$var": "issuerId" }},
{
"sectionName": {"_$var": "sectionName"}
}
]
}
}
]
}
}
}
I am sure I am doing something wring in either defining the aggregation or while requesting the URI. There is not enough in the documentation. Please help me with this request.

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