neo4j-graphql-js | longer actively maintained. Please consider using | GraphQL library
kandi X-RAY | neo4j-graphql-js Summary
kandi X-RAY | neo4j-graphql-js Summary
A package to make it easier to use GraphQL and Neo4j together. neo4j-graphql.js translates GraphQL queries to a single Cypher query, eliminating the need to write queries in GraphQL resolvers and for batching queries. It also exposes the Cypher query language through GraphQL via the @cypher schema directive.
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Top functions reviewed by kandi - BETA
- Constructs a cy - field selection
- Executes a neo4 graph
- Creates the argument for a specific keyword
- Inters the parameters of a filter .
- Parses a single argument
- Creates a cypher from a query
- Returns a translation function
- Extract results from query result
- Creates list of options from the selected selections
- Convert params object to string
neo4j-graphql-js Key Features
neo4j-graphql-js Examples and Code Snippets
Community Discussions
Trending Discussions on neo4j-graphql-js
QUESTION
I am trying to write a query with AND operator to extract data from neo4j in GraphQL but it doesn't return any result. I am using neo4j-graphql-js library. I have the following schema
...ANSWER
Answered 2021-Mar-06 at 07:59Since you have mentioned about using neo4j-graphql-js library. You can do something like this:
QUESTION
I am trying to setup a relationship type in Grandstack. I am having issues getting things to run correctly. Even when I copy the guide into my project and try to run it ... things do not work. Here is what they have at https://grandstack.io/docs/guide-graphql-schema-design
...ANSWER
Answered 2021-Feb-25 at 07:09I was accidentally running
QUESTION
Often I want to create a GraphQL type that represents the results of a Cypher query that spans than one node. I can't return a concrete node from @cypher
in this case, as no such node exists. I tried to return appropriately named fields from a top-level @cypher
query but this approach did not work.
ANSWER
Answered 2020-Oct-31 at 10:37The problem is that according to the Person
definition, there must be an object at the query output. So try this query
QUESTION
I recently picked up Neo4j as it seemed the best type of database to store data I'm currently scraping off a number of online discussion forums. The primary structure of the graph is Community -> Forum -> Thread -> Post -> Author
I'm trying to write the Cypher queries to resolve GraphQL queries, and would like to paginate (for example) the Forum -> Thread connection. The relationship is CONTAINS which holds an order
property i.e. (f:Forum)-[:CONTAINS]->(t:Thread)
From the neo4j-graphql-js library I picked up on their usage of pattern comprehension to run an "inner query" on the child nodes. For example:
...ANSWER
Answered 2020-Aug-12 at 17:06[EDITED]
If you moved the order
property into the Thread
nodes (which should be valid if each Thread
node is connected to only a single Forum
), then you can create an index (or uniqueness constraint) on :Thread(order)
to speed up your query.
For example, this query should leverage the index to paginate forward faster (assuming that the f.id
, the order
value to use for pagination purposes, and limit
value are passed as the parameters id
, order
, and limit
):
QUESTION
I'm sorry to be posting yet another question about CORS but I just can't figure this one out.
I have a React app using an Express.js server (running on http://localhost:9001
) to upload an image to a Google Cloud storage bucket. I keep getting a CORS error even though the image is uploaded successfully and this is preventing me from getting the image's URL returned. I don't really understand how I can get a CORS error even though the image is uploaded but that's what's happening.
I have configured CORS on the Google Cloud storage bucket as follows:
...ANSWER
Answered 2020-Aug-05 at 10:51You add cors to Google Cloud storage bucket but you forgot to add it to express server POST function. Or use it as global on your express server.
Try this on your express POST function:
QUESTION
I have just set up my Neo4j server on a VM on Google Cloud, I'm using Enterprise version 4.1.1, and I've have finished following the great post (here) by David Allen about how to get a certificate with LetsEncrypt.
This has all worked perfectly and I now have a fully secure Neo4j server that I can access through the browser (MYDOMAIN.COM:7473/browser
) using my hostname. However, I am now having issues getting my application to connect to the server using the javascript driver.
I keep getting the following error:
Failed to connect to server. Please ensure that your database is listening on the correct host and port and that you have compatible encryption settings both on Neo4j server and driver. Note that the default encryption setting has changed in Neo4j 4.0. Caused by: Server certificate is not trusted. If you trust the database you are connecting to, use TRUST_CUSTOM_CA_SIGNED_CERTIFICATES and add the signing certificate, or the server certificate, to the list of certificates trusted by this driver using neo4j.driver(.., { trustedCertificates:['path/to/certificate.crt']}). This is a security measure to protect against man-in-the-middle attacks. If you are just trying Neo4j out and are not concerned about encryption, simply disable it using encrypted="ENCRYPTION_OFF" in the driver options. Socket responded with: ERR_TLS_CERT_ALTNAME_INVALID
I have read through the driver documentation (here) and I have added both the trust: "TRUST_CUSTOM_CA_SIGNED_CERTIFICATES"
and trustedCertificates:[]
settings. I downloaded all of the certificates from my server (cert.pem, chain.pem, fullchain.pem and privacy.pem) and linked to them in the trustedCertificates setting.
Unfortunately I'm still getting the same error. For reference, this is how my driver is currently configured:
...ANSWER
Answered 2020-Jul-25 at 20:52I found a solution to this problem - I had a look at the documentation (here)and found that I needed to update my NEO4J_URI
from bolt://SO.ME.IP.ADDRESS:7687
to neo4j://MYDOMAIN.COM:7687
. Now I've done this all is working as expected.
QUESTION
When using LOAD CSV function with session.run() to execute cypher statements into Neo4J it doesn't return anything. Have tried removing LOAD CSV and it works perfectly fine in creating nodes.
This is the code:
...ANSWER
Answered 2020-May-12 at 17:56That LOAD CSV command will just invoke CREATE (n)
once per line which will create a node with no label or properties. Try changing it to something like CREATE (n:CsvNode) SET n.prop_1 = csvLine.header1
(where header1
is one of the headers from your CSV) and see if nodes labelled :CsvNode get created.
QUESTION
ANSWER
Answered 2020-Feb-06 at 17:23You can extract the path from the GraphQLResolveInfo object passed to the resolver:
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